HITACHI SJ7002 User Manual

Cover

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

SJ700

2

Series Inverter

Instruction Manual

• Three-phase Input 200V Class

• Three-phase Input 400V Class

U.S. Version Models European Version Models

Manual Number: NB206XA

October 2009

Hitachi Industrial Equipment Systems Co., Ltd.

After reading this manual,

keep it handy for future reference.

Safety Messa ges

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

For the best results with the SJ7002 Series inverter, carefully read this manual and all of the
warning labels attached to the inverter before installing and operating it, and follow the instruc­tions exactly. Keep this manual handy for quick reference.

SJ7002 Inverter

i

Definitions and Symbols

A safety instruction (message) includes a hazard alert symbol and a signal word, WARNING or
CAUTION. Each signal word has the following meaning:

This symbol indicates HIGH VOLTAGE. It calls your attention to items or operations
that could be dangerous to you and other persons operation this equipment. Read the
message and follow the instructions carefully.

This symbol is the “Safety Alert Symbol.” It occurs with either of two signal words:
CAUTION or WARNING, as described below.

WARNING: Indicates a potentially hazardous situation that, if not avoided, can result
in serious injury or death.

CAUTION: Indicates a potentially hazardous situation that, if not avoided, can result
in minor to moderate injury, or serious damage to the product. The situation described
in the CAUTION may, if not avoided, lead to serious results. Important safety
measures are described in CAUTION (as well as WARNING), so be sure to observe
them.

STEP: A step is one of a series of action steps required to accomplish a goal. The
number of the step will be contained in the step symbol.

NOTE: Notes indicate an area or subject of special merit, emphasizing either the
product’s capabilities or common errors in operation or maintenance.

TIP: Tips give a special instruction that can save time or provide other benefits
while installing or using the product. The tip calls attention to an idea tha t may n ot
be obvious to first-time users of the product.

Hazardous High Voltage

HIGH VOLTAGE: Motor control equipment and electronic controllers are connected to haz­ardous line voltages. When servicing drives and electronic controllers, there may be exposed
components with housings or protrusions at or above line potential. Extreme care should be
taken to protect against shock.
Stand on an insulating pad and make it a habit to use only one hand when checking compo­nents. Always work with another person in case an emergency occurs. Disconnect power before
checking controllers or performing maintenance. Be sure equipment is properly grounded.
Wear safety glasses whenever working on electronic controllers or rotating machinery.

ii

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

General Precautions - Read These First!

WARNING: This equipment should be installed, adjusted, and serviced by qualified electrical
maintenance personnel familiar with the construction and operation of the equipment and the
hazards involved. Failure to observe this precaution could result in bodily injury.

WARNING: The user is responsible for ensuring that all driven machinery, drive train mecha­nism not supplied by Hitachi Industrial Equipment Systems Co., Ltd., and process line material
are capable of safe operation at an applied frequency of 150% of the maximum selected
frequency range to the AC motor. Failure to do so can result in destruction of equipment and
injury to personnel should a single-point failure occur.

WARNING: For equipment protection, install a ground leakage type breaker with a fast
response circuit capable of handling large currents. The ground fault protection circuit is not
designed to protect against personal injury.

HIGH VOLTAGE: HAZARD OF ELECTRICAL SHOCK. DISCONNECT INCOMING
POWER BEFORE WORKING ON THIS CONTROL.

WARNING: Wait at least ten (10) minutes after turning OFF the input power supply before
performing maintenance or an inspection. Otherwise, there is the danger of electric shock.

CAUTION: These instructions should be read and clearly understood before working on
SJ7002 series equipment.

CAUTION: Proper grounds, disconnecting devices and other safety devices and their location
are the responsibility of the user and are not provided by Hitachi Industrial Equipment Systems
Co., Ltd.

CAUTION: Be sure to connect a motor thermal disconnect switch or overload device to the

2 series controller to assure that the inverter will shut down in the event of an overload or

SJ700
an overheated motor.

HIGH VOLT AGE: Dangerous voltage exists until power light is OFF. W ait at least 10 minutes
after input power is disconnected before performing maintenance.

CAUTION: This equipment has high leakage current and must be permanently (fixed) hard­wired to earth ground via two independent cables.

WARNING: Rotating shafts and above-ground electrical potentials can be hazardous. There­fore, it is strongly recommended that all electrical work conform to the National Electrical
Codes and local regulations. Installation, alignment and maintenance should be performed only
by qualified personnel.
Factory-recommended test procedures included in the instruction manual should be followed.
Always disconnect electrical power before working on the unit.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

CAUTION:

a) Motor must be connected to protective ground via low resistive path (< 0.1Ω)
b) Any motor used must be of a suitable rating.
c) Motors may have hazardous moving parts. In this event suitable protection must be provided.

CAUTION: Alarm connection may contain hazardous live voltage even when inverter is
disconnected. When removing the front cover for maintenance or inspection, confirm that
incoming power for alarm connection is completely disconnected.

CAUTION: Hazardous (main) terminals for any interconnection (motor , contact breaker , f ilter ,
etc.) must be inaccessible in the final installation.

CAUTION: The end application must be in accordance with BS EN60204-1. Refer to the
section “
suitably amended for your application.

CAUTION: Connection to field wiring terminals must be reliably fixed having two indepen­dent means of mechanical support. Using a termination with cable support (figure below), or
strain relief, cable clamp, etc.

Step-by-Step Basic Installation” on page 2–6. The diagram dimensions are to be

iii

Terminal (ring lug)

CAUTION: A three-pole disconnection device must be fitted to the incoming main power
supply close to the inverter. Additionally, a protection device meeting IEC947-1/IEC947-3
must be fitted at this point (protection device data shown in “

on page 2–18).

NOTE: The above instructions, together with any other requirements are highlighted in this
manual, and must be followed for continued LVD (European Low Voltage Directive) compli­ance.

Cable support

Cable

Determining Wire and Fuse Sizes”

iv

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Index to Warnings and Cautions in This Manual

Installation—Cautions for Mounting Procedures

CAUTION: Be sure to install the unit on flame-resistant material such as a
steel plate. Otherwise, there is the danger of fire.

CAUTION: Be sure not to place any flammable materials near the inverter.
Otherwise, there is the danger of fire.

CAUTION: Be sure not to let the foreign matter enter vent openings in the
inverter housing, such as wire clippings, spatter from welding, metal
shavings, dust, etc. Otherwise, there is the danger of fire.

CAUTION: Be sure to instal l the in v erter in a plac e that can bear the wei ght
according to the specifications in the text (Chapter 1, Specifications Tables).
Otherwise, it may fall and cause injury to personnel.

CAUTION: Be sure to install the unit on a perpendicular wall that is not
subject to vibration. Otherwise, it may fall and cause injury to personnel.

CAUTION: Be sure not to install or operate an inverter that is damaged or
has missing parts. Otherwise, it may cause injury to personnel.

CAUTION: Be sure to install the inverter in a well-ventilated room that
does not have direct exposure to sunlight, a tendency for high temperature,
high humidity or dew condensation, high levels of dust, corrosive gas,
explosive gas, inflammable gas, grinding-fluid mist, salt air, etc. Otherwise,
there is the danger of fire.

............... 2–6

............... 2–6

............... 2–6

............... 2–6

............... 2–6

............... 2–6

............... 2–6

CAUTION: Be sure to maintain the specified clearance area around the
inverter and to provide adequate ventilation. Otherwise, the inverter may
overheat and cause equipment damage or fire.

............... 2–8

Wiring—Warnings for Electrical Practices and Wire Specifications

WARNING: Use 75°C Cu wire only or equivalent. ............. 2–17

WARNING: Open Type Equipment. For models SJ700–750H to SJ700–
4000H.

WARNING: A Class 2 circuit wired with Class 1 wire or equivalent. ............. 2–17

WARNING: Suitable for use on a circuit capable of delivering not more
than 100,000 rms symmetrical amperes, 240 V maximum. For models with
suffix L.

WARNING: Suitable for use on a circuit capable of delivering not more
than 100,000 rms symmetrical amperes, 480 V maximum. For models with
suffix H.

............. 2–17

............. 2–17

............. 2–17

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

v

HIGH VOLTAGE: Be sure to ground the unit. Otherwise, there is a danger
of electric shock and/or fire.

HIGH VOLTAGE: Wiring work shall be carried out only by qualified
personnel. Otherwise, there is a danger of electric shock and/or fire.

HIGH VOLTAGE: Implement wiring after checking that the power supply
is OFF. Otherwise, you may incur electric shock and/or fire.

HIGH VOLTAGE: Do not connect wiring to an inverter or operate an
inverter that is not mounted according the instructions given in this manual.
Otherwise, there is a danger of electric shock and/or injury to personnel.

Wiring—Cautions for Electrical Practices

CAUTION: Be sure that the input voltage matches the inverter specifica­tions: • Three phase 200 to 240V 50/60Hz • Three phase 380 to 480V 50/
60Hz

CAUTION: Be sure not to power a three-phase-only inverter with single
phase power. Otherwise, there is the possibility of damage to the inverter
and the danger of fire.

............. 2–17

............. 2–17

............. 2–17

............. 2–17

............. 2–25

............. 2–25

CAUTION: Be sure not to connect an AC power supply to the output termi­nals. Otherwise, there is the possibility of damage to the inverter and the
danger of injury and/or fire.

Power Input Power Output

L2

L1 L3

RST

T1 T2 T3

UVW

NOTE:

L1, L2, L3: Three-phase 200 to 240V 50/60 Hz

Three-phase 380 to 480V 50/60 Hz

............. 2–25

vi

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

CAUTION: Fasten the screws with the specified fastening torque in the
table below. Check for any loosening of screws. Otherwise, there is the
danger of fire.

CAUTION: Remarks for using ground fault interrupter breakers i n the main
power supply: Adjustable frequency inverters with CE-filters (RFI-filter)
and shielded (screened) motor cables have a higher leakage current toward
Earth GND. Especially at the moment of switching ON this can cause an
inadvertent trip of ground fault interrupter breakers. Because of the rectifier
on the input side of the inverter there is the possibility to stall the switch-off
function through small amounts of DC current. Please observe the follow­ing: • Use only short time-invariant and pulse current-sensitive ground fault
interrupter breakers with higher trigger current. • Other components should
be secured with separate ground fault interrupter breakers. • Ground fault
interrupter breakers in the power input wiring of an inverter are not an
absolute protection against electric shock.

CAUTION: Be sure to install a fuse in each phase of the main po we r supply
to the inverter. Otherwise, there is the danger of fire.

CAUTION: For motor leads, ground fault interrupter breakers and electro­magnetic contactors, be sure to size these components properly (each must
have the capacity for rated current and voltage). Otherwise, there is the
danger of fire.

CAUTION: Failure to remove all vent opening covers before electrical
operation may result in damage to the inverter.

............. 2–20

............. 2–25

............. 2–25

............. 2–25

............. 2–26

Powerup Test Caution Messages

CAUTION: The heat sink fins will have a high temperature. Be careful not
to touch them. Otherwise, there is the danger of getting burned.

CAUTION: The operation of the inverter can be easily changed from low
speed to high speed. Be sure to check the capability and limitations of the
motor and machine before operating the inverter. Otherwise, there is the
danger of injury.

CAUTION: If you operate a motor at a frequency higher than the inverter
standard default setting (50Hz/60Hz), be sure to check the motor and
machine specifications with the respective manufacturer. Only operate the
motor at elevated frequencies after getting their approval. Otherwise, there
is the danger of equipment damage and/or injury to personnel.

CAUTION: Check the following before and during the powerup test. Other­wise, there is the danger of equipment damage. • Is the shorting bar between
the [P] and [PD] terminals installed? DO NOT power or operate the in verter
if the jumper is removed. • Is the direction of the motor rotation correct? •
Did the inv erter trip during acce leration or deceleration? • Were the rpm and
frequency meter readings as expected? • Were there any abnormal motor
vibrations or noise?

............. 2–27

............. 2–27

............. 2–28

............. 2–28

Warnings for Operations and Monitoring

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

SJ7002 Inverter

vii

WARNING: Be sure to turn ON the input power supply only after closing
the front case. While the inverter is energized, be sure not to open the front
case. Otherwise, there is the danger of electric shock.

WARNING: Be sure not to operate electrical equipment with wet hands.
Otherwise, there is the danger of electric shock.

WARNING: While the inverter is energized, be sure not to touch the
inverter terminals even when the motor is stopped. Otherwise, there is the
danger of electric shock.

WARNING: If the Retry Mode is selected, the motor may suddenly restart
after a trip stop. Be sure to stop the inverter before approaching the machine
(be sure to design the machine so that safety for personnel is secure even if
it restarts.) Otherwise, it may cause injury to personnel.

WARNING: If the power supply is cut OFF for a short period of time, the
inverter may restart operation after the power supply recovers if the Run
command is active. If a restart may pose danger to personnel, so be sure to
use a lock-out circuit so that it will not restart after power recovery. Other­wise, it may cause injury to personnel.

WARNING: The Stop Key is effective only when the Stop function is
enabled. Be sure to enable the Stop Key separately from the emergency
stop. Otherwise, it may cause injury to personnel.

WARNING: During a trip event, if the alarm reset is applied and the Run
command is present, the inverter will automatically restart. Be sure to apply
the alarm reset only after verifying the Run command is OFF. Otherwise, it
may cause injury to personnel.

............... 4–3

............... 4–3

............... 4–3

............... 4–3

............... 4–3

............... 4–3

............... 4–3

WARNING: Be sure not to touch the inside of the energized inverter or to
put any conductive object into it. Otherwise, there is a danger of electric
shock and/or fire.

WARNING: If power is turned ON when the Run command is already
active, the motor will automatically start and injury may result. Before
turning ON the power, confirm that the RUN command is not present.

WARNING: When the Stop key function is disabled, pressing the Stop key
does not stop the inverter, nor will it reset a trip alarm.

WARNING: Be sure to provide a separate, hard-wired emergency stop
switch when the application warrants it.

WARNING: If the power is turned ON and the Run command is already
active, the motor starts rotati on and is dangerous! Before turning power ON,
confirm that the external Run command is not active.

WARNING: After the Reset command is given and the alarm reset occurs,
the motor will restart suddenly if the Run command is already active. Be
sure to set the alarm reset after verifying that the Run command is OFF to
prevent injury to personnel.

WARNING: You may need to disconnect the load from the motor before
performing auto-tuning. The inverter runs the motor forward and backward
for several seconds without regard to load movement limits.

............... 4–3

............... 4–3

............... 4–3

............... 4–3

............. 4–15

............. 4–24

............. 4–71

viii

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Cautions for Operations and Monitoring

CAUTION: The heat sink fins will have a high temperature. Be careful not
to touch them. Otherwise, there is the danger of getting burned.

CAUTION: The operation of the inverter can be easily changed from low
speed to high speed. Be sure check the capability and limitations of the
motor and machine before operating the inverter. Otherwise, it may cause
injury to personnel.

CAUTION: If you operate a motor at a frequency higher than the inverter
standard default setting (50Hz/60Hz), be sure to check the motor and
machine specifications with the respective manufacturer. Only operate the
motor at elevated frequencies after getting their approval. Otherwise, there
is the danger of equipment damage.

CAUTION: It is possible to damage the inverter or other devices if your
application exceeds the maximum current or voltage characteristics of a
connection point.

CAUTION: Be careful not to turn PID Clear ON and reset the integrator
sum when the inverter is in Run Mode (output to motor is ON). Otherwise,
this could cause the motor to decelerate rapidly, resulting in a trip.

CAUTION: When the motor runs at lower speeds, the cooling effect of the
motor’s internal fan decreases.

CAUTION: If the inverter capacity is more than twice the capacity of the
motor in use, the inverter may not achieve its full performance specifica­tions.

............... 4–2

............... 4–2

............... 4–2

............... 4–7

............. 4–26

............. 4–52

............. 4–74

Warnings and Cautions for Troubleshooting and Maintenance

WARNING: Wait at least ten (10) minutes after turning OFF the input
power supply before performing maintenance or an inspection. Otherwise,
there is the danger of electric shock.

WARNING: Make sure that only qualified personnel will perform mainte­nance, inspection, and part replacement. Before starting to work, remove
any metallic objects from your person (wristwatch, bracelet, etc.). Be sure
to use tools with insulated handles. Otherwise, there is a danger of electric
shock and/or injury to personnel.

WARNING: Never remove connectors by pulling on its wire leads (wires
for cooling fan and logic P.C. board). Otherwise, there is danger of fire due
to wire breakage and/or injury to personnel.

CAUTION: Do not connect the megger to any control circuit terminals such
as intelligent I/O, analog terminals, etc. Doing so could cause damage to the
inverter.

CAUTION: Never test the withstand voltage (HIPOT) on the inverter. The
inverter has a surge protector between the main circuit terminals above and
the chassis ground.

............... 6–2

............... 6–2

............... 6–2

............. 6–19

............. 6–19

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

ix

WARNING: The screws that retain the capacitor bank assembly are part of
the electrical circuit of the high-voltage internal DC bus. Be sure that all
power has been disconnected from the inverter, and that you have waited at
least 10 minutes before accessing the terminals or screws. Be sure the
charge lamp is extinguished. Otherwise, there is the danger of electrocution
to personnel.

CAUTION: Do not operate the inverter unless you have replaced the two
screws that connect the capacitor bank assembly to the internal DC bus.
Otherwise, damage to the inverter may occur.

HIGH VOLTAGE: Be careful not to touch wiring or connector terminals
when working with the inverters and taking measurements. Be sure to place
the measurement circuitry above in an insulated housing before using them.

General Warnings and Cautions

WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or
injury.

CAUTION: Withstand voltage tests and insulation resistance tests (HIPOT) are executed
before the units are shipped, so there is no need to conduct these tests before operation.

............. 6–21

............. 6–21

............. 6–26

CAUTION: Do not attach or remove wiring or connectors when power is applied. Also, do not
check signals during operation.

CAUTION: Do not stop operation by switching OFF electromagnetic contactors on the
primary or secondary sides of the inverter.

Power

Input

MCCB GFI

L1, L2, L3

When there has been a sudden power failure while a Run command is active, then the unit may
restart operation automatically after the power failure has ended. If there is a possibility that
such an occurrence may harm humans, then install an electromagnetic contactor on the power
supply side, so that the circuit does not allow automatic restarting after the power supply recov­ers. If an optional remote operator is used and the retry function has been selected, this will also
allow automatic restarting when a Run command is active. So, please be careful.

Ground fault

interrupter

R, S, T

FW

Inverter

U, V, W

Motor

x

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

CAUTION: Do not insert leading power factor capacitors or surge absorbers between the
output terminals of the inverter and motor.

Power

Input

L1, L2, L3

Ground fault

interrupter

GFI

R, S, T

Inverter

U, V, W

GND lug

Surge absorber

Motor

Leading power

factor capacitor

CAUTION: Be sure to connect the grounding terminal to earth ground.

CAUTION: When inspecting the unit, be sure to wait 10 minutes after tuning OFF the power

supply before opening the cover.

CAUTION: SUPPRESSION FOR NOISE INTERFERENCE FROM INVERTER

The inverter uses many semiconductor switching elements such as transistors and IGBTs.
Thus, a radio receiver or measuring instrument located near the inverter is susceptible to noise
interference.
To protect the instruments from erroneous operation due to noise interference, they should be
used well away from the inverter. It is also effective to shield the whole inverter structure.
The addition of an EMI filter on the input side of the inverter also reduces the effect of noise
from the commercial power line on external devices.
Note that the external dispersion of noise from the power line can be minimized by connecting
an EMI filter on the primary side of inverter.

Power

source

L1
L2
L3

EMI filter
R1

R2
S2

S1

T2

T1

Inverter
R
S
T

U
V
W

T1
T2
T3

Motor

noise

EMI filter

Completely ground the enclosed
panel, metal screen, etc. with as
short a wire as possible.

Inverter

Remote

operator

Motor

Grounded frame

Conduit or shielded cable—
to be grounded

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

CAUTION: MOTOR TERMINAL VOLTAGE SURGE SUPPRESSION FILTER
(For 400 V CLASS Inverters)

In a system using an inverter with the voltage control PWM system, a voltage surge caused by
the cable constants such as the cable length (especially when the distance between the motor
and inverter is 10 m or more) and cabling method may occur at the motor terminals. A
dedicated filter of the 400 V class for suppressing this voltage surge is available. Be sure to
install a filter in this situation. (See “LCR filter” on page 5–2, part type HRL–xxxC.)

CAUTION: EFFECTS OF POWER DISTRIBUTION SYSTEMS ON INVERTERS

In the cases below involving a general-purpose inverter, a large peak current can flow on the
power supply side, sometimes destroying the converter module:

1. The unbalance factor of the power supply is 3% or higher.

2. The power supply capacity is at least 10 times greater than the inverter capacity (or the
power supply capacity is 500 kVA or more).

3. Abrupt power supply changes are expected, due to conditions such as:
a. Several inverters are interconnected with a short bus.
b. A thyristor converter and an inverter are interconnected with a short bus.
c. An installed phase advance capacitor opens and closes.

Where these conditions exist or when the connected equipment must be highly reliable, you
MUST install an input-side AC reactor of 3% (at a voltage drop at rated current) with respect to
the supply voltage on the power supply side. Also, where the effects of an indirect lightning
strike are possible, install a lightning conductor.

xi

CAUTION: EFFECTS OF SHARING POWER SOURCE BETWEEN INVERTER AND
OTHER MOTORS

An electric cooling fan for the motor shall be powered from another system. A motor directly
connected to the power source shall also be power from another system. If they are powered
from the same system as the inverter, an insufficient voltage protection error (E09)or an instan­taneous power failure protection error (E16) may occur when the inverter is turned OFF.

CAUTION: Do not install inv ert ers in a corner-grounded Delta distribution system. The result­ing line imbalance will cause premature line fuse failure and failure of the inverter input bridge
rectifier. Install in a balanced Delta or Wye distribution system only.

CAUTION: When the EEPROM error E8 occurs, be sure to confirm the setting values again.

CAUTION: When using normally closed active state settings (C011 to C019) for externally

commanded Forward or Reverse terminals [FW] or [RV], the inverter may start automatically
when the external system is powered OFF or disconnected from the inverter! So, do not use
normally closed active state settings for Forward or Reverse terminals [FW] or [RV] unless
your system design protects against unintended motor operation.

CAUTION: Do not discard the inverter with household waste. Contact an
industrial waste management company in your area who can treat industrial
waste without polluting the environment.

General Caution

CAUTION: In all the illustrations in this manual, covers and safety devices are occasionally
removed to describe the details. While operating the product, make sure that the covers and
safety devices are placed as they were specified originally and operate it according to the
instruction manual.

xii

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

UL® Cautions, Warnings, and Instructions

Wiring Warnings for Electrical Practices and Wire Sizes

The Cautions, Warnings, and instructions in this section summarize the procedures necessary to
ensure an inverter installation complies with Underwriters Laboratories

The SJ700
accessory Type 1 Chassis Kit) AC in verter with 3-phase input and 3-phase output. The inverter
are intended for use in an enclosure. The inverter supplies adjustable voltage and adjustable
frequency to an AC motor. The inverter can automatically maintain a constant volts/Hz ratio to
enhance the motor capability throughout its entire speed range.

WARNING: Use 65/75°C Cu wire only or equivalent. For SJ700 series except SJ700-300Lxx
and SJ700-370Lxx.

WARNING: Use 75°C Cu wire only or equivalent. For SJ700-300Lxx and SJ700-370Lxx.

WARNING: Suitable for use on a circuit capable of delivering not more than 100,000 rms

symmetrical amperes with 240 V maximum. For models with suffix L (200V class).

WARNING: Suitable for use on a circuit capable of delivering not more than 100,000 rms
symmetrical amperes with 480 V maximum. For models with suffix H (400V class).

2 series inverter family is an open-type and/or Enclosed Type 1 (when employing

®

guidelines.

WARNING: The inve rter must be installed in an environment that is rated for at least Pollution
Degree 2 or equivalent.

WARNING: The ambient temperature must not exceed 50°C.

WARNING: The capacitor discharge time is 10 minutes or more. (Caution: Care must be taken

to avoid the risk of electric shock.)

WARNING: Each model of the inverter has a solid-state overload protection circuit or an
equivalent feature for the motor.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

xiii

Terminal Tighten­ing Torque and
Wire Size

The wire size range and tightening torque for field wiring terminals are presented in the table
below.

Input

Voltage

200V

Motor

Output

HP kW ft-lbs (N-m)

0.5 0.4 SJ700–004LFU2 14 (stranded only) 1.3 1.8
1 0.75 SJ700–007LFU2 14 (stranded only) 1.3 1.8
2 1.5 SJ700–015LFU2 14 (stranded only) 1.3 1.8
3 2.2 SJ700–022LFU2 14 (stranded only) 1.3 1.8
5 3.7 SJ700–037LFU2 10 (stranded only) 1.3 1.8

7.5 5.5 SJ700-055LFU2 8 3.0 4.0

10 7.5 SJ700-075LFU2 6 3.0 4.0
15 11 SJ700-110LFU2 6–4 3.0 4.0
20 15 SJ700-150LFU2 2 3.6 4.9
25 18.5 SJ700-185LFU2 1 3.6 4.9
30 22 SJ700-220LFU2 1 or 1/0 6.5 8.8
40 30 SJ700-300LFU2 2/0 or 1/0 || 1/0 6.5 8.8
50 37 SJ700-370LFU2 4/0 (prepared wire only) or

60 45 SJ700-450LFU2 4/0 (prepared wire only) or

75 55 SJ700-550LFU2 350 kcmil (prepared wire

200V

Inverter Model

Wire Size Range (AWG)

1/0 || 1/0

1/0 || 1/0

only) or 2/0 || 2/0 (prepared

wire only

Torque

14.8 20.0

14.8 20.0

14.5 19.6

Input

Voltage

400V

Motor

Output

HP kW ft-lbs (N-m)

0.5 0.75 SJ700–007HFU2/E (All) 14 (stranded only) 1.3 1.8
1 1.5 SJ700–015HFU2/E (All) 14 (stranded only) 1.3 1.8
2 2.2 SJ700–022HFU2/E (All) 14 (stranded only) 1.3 1.8
3 4.0 SJ700–040HFU2/E (All) 14 (stranded only) 1.3 1.8

7.5 5.5 SJ700-055HFU2/E (All) 12 3.0 4.0

10 7.5 SJ700-075HFU2/E (All) 10 3.0 4.0
15 11 SJ700-110HFU2/E (All) 8 3.0 4.0
20 15 SJ700-150HFU2/E (All) 6 3.6 4.9
25 18.5 SJ700-185HFU2/E (All) 6 3.6 4.9
30 22 SJ700-220HFU2/E (All) 6 or 4 6.5 8.8
40 30 SJ700-300HFU2/E (All) 3 6.5 8.8
50 37 SJ700-370HFU2/E (All) 1 14.8 20.0
60 45 SJ700-450HFU2/E (All) 1 14.8 20.0
75 55 SJ700-550HFU2/E (All) 2/0 14.5 19.6

400V

Inverter Model

Power Terminals Wire Size Range (AWG)

Torque

xiv

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Input

Voltage

400V

Motor

Output

HP kW ft-lbs (N-m)

100 75 SJ700–750HFU2/E (All) 1/0 || 1/0 14.8 20.0
125 90 SJ700–900HFU2/E (All) 1/0 || 1/0 14.8 20.0
150 110 SJ700–1100HFU2/E (All) 3/0 || 3/0 25.8 35.0
150 132 SJ700–1320HFE2,

250 185 SJ700–1850HFU2/E [R, S, T, U, V, W] 250 kcmil x 2 55.3 75.0

400 315 SJ700–3150HFU2/E [R, S, T, U, V, W] 400 kcmil x 2 32.5 44.0

500 400 SJ700–4000HFU2/E [R, S, T, U, V, W] 600 kcmil x 2 38.4 52.0

400V

Inverter Model

SJ700–1500HFU2

Power Terminals Wire Size Range (AWG)

(All) 3/0 || 3/0 25.8 35.0

[P, PD, N] 300 kcmil x 2 6.0 8.1
[P, N] Braking unit 1 55.3 75.0
Earth GND 250 kcmil 28.9 39.2

[P, PD, N] 500 kcmil x 2 14.8 20
[P, N] Braking unit 250 kcmil 32.5 44.0
Earth GND 400 kcmil 28.9 39.2

[P, PD, N] 800 kcmil x 2 14.8 20
[P, N] Braking unit 250 kcmil x 2 38.4 52.0
Earth GND 600 kcmil 28.9 39.2

Torque

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

xv

Fuse and Circuit Breaker Sizes

Input

Voltage

200V

Motor

Output

HP kW HP kW

0.5 0.4 SJ700–004LFU2 5A
1 0.75 SJ700–007LFU2 10A 1 0.75 SJ700–007HFU2/E 5A
2 1.5 SJ700–015LFU2 15A 2 1.5 SJ700–015HFU2/E 10A
3 2.2 SJ700–022LFU2 20A 3 2.2 SJ700–022HFU2/E 10A
5 3.7 SJ700–037LFU2 30A 5 3.7 SJ700–037HFU2/E 15A

7.5 5.5 SJ700-055LFU2 30A 7.5 5.5 SJ700-055HFU2/E 15A

10 7.5 SJ700-075LFU2 40A 10 7.5 SJ700-075HFU2/E 20A
15 11 SJ700-110LFU2 60A 15 11 SJ700-110HFU2/E 30A
20 15 SJ700-150LFU2 80A 20 15 SJ700-150HFU2/E 40A
25 18.5 SJ700-185LFU2 100A 25 18.5 SJ700-185HFU2/E 50A
30 22 SJ700-220LFU2 125A 30 22 SJ700-220HFU2/E 60A
40 30 SJ700-300LFU2 150A 40 30 SJ700-300HFU2/E 70A
50 37 SJ700-370LFU2 175A 50 37 SJ700-370HFU2/E 90A
60 45 SJ700-450LFU2 225A 60 45 SJ700-450HFU2/E 125A
75 55 SJ700-550LFU2 250A 75 55 SJ700-550HFU2/E 125A

The inverter’s input power wiring must include UL Listed, dual-element, 600V fuses, or UL
Listed, inverse-time, 600V circuit breakers.

200V

Inverter Model

Ampere Rating

for Fuse or

Breaker

Input

Voltage

Motor

Output

—— — —

400V

Inverter Model

Ampere Rating

for Fuse or

Breaker

400V

100 75 SJ700-750HFU2/E 225A
125 90 SJ700-900HFU2/E 225A
150 110 SJ700-1100HFU2/E 300A
200 150 SJ700-1320HFE2

250 185 SJ700-1850HFU2/E 400A
400 315 SJ700-3150HFU2/E 700A

55 400 SJ700-4000HFU2/E 1000A

SJ700-1500HFU2

300A

xvi

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Wire Connectors

Motor Overload Protection

WARNING: Field wiring connections must
be made by a UL Listed and CSA Certified
ring lug terminal connector sized for the
wire gauge being used. The connector must
be fixed using the crimping tool specified by
the connector manufacturer.

Hitachi SJ7002 inverters provide solid state motor overload protection, which depends on the
proper setting of the following parameters:

• B012 “electronic overload protection”

• B212 “electronic overload protection, 2nd motor”

• B312 “electronic overload protection, 3rd motor”
Set the rated current [Amperes] of the motor(s) with the above parameters. The setting range is

0.2 * rated current to 1.2 * rated current.

WARNING: Integral solid state short circuit protection does not provide branch circuit
protection. Branch circuit protection must be provided in accordance with the NEC and any
additional local codes.

WARNING: When two or more motors are connected to the in v e rter, they cannot be protected
by the electronic overload protection. Install an external thermal relay on each motor.

Terminal (ring lug)

Cable support

Cable

Table of Contents

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Safety Messages

Hazardous High Voltage i
General Precautions - Read These First! ii
Index to Warnings and Cautions in This Manual iv
General Warnings and Cautions ix
UL® Cautions, Warnings, and Instructions xii

Table of Contents

Revisions xix
Contact Information xx

Chapter 1: Getting Started

Introduction 1–2
Inverter Specifications 1–6
Introduction to Variable-Frequency Drives 1–14
Frequently Asked Questions 1–18

SJ7002 Inverter

xvii

Chapter 2: Inverter Mounting and Installation

Orientation to Inverter Features 2–2
Basic System Description 2–5
Step-by-Step Basic Installation 2–6
Powerup Test 2–27
Using the Front Panel Keypad 2–29
Emergency Stop Function 2–37

Chapter 3: Configuring Drive Parameters

Choosing a Programming Device 3–2
Using Keypad Devices 3–3
“D” Group: Monitoring Functions 3–6
“F” Group: Main Profile Parameters 3–9
“A” Group: Standard Functions 3–10
“B” Group: Fine-Tuning Functions 3–30
“C” Group: Intelligent Terminal Functions 3–50
“H” Group: Motor Constants Functions 3–66
“P” Group: Expansion Card Functions 3–69
“U” Group: User-selectable Menu Functions 3–74
Programming Error Codes 3–75

Chapter 4: Operations and Monitoring

Introduction 4–2
Optional Controlled Decel and Alarm at Power Loss 4–4
Connecting to PLCs and Other Devices 4–7
Using Intelligent Input Terminals 4–13
Using Intelligent Output Terminals 4–43
Analog Input Operation 4–63
Analog Output Operation 4–66
Setting Motor Constants for Vector Control 4–69
PID Loop Operation 4–75
Configuring the Inverter for Multiple Motors 4–76

xviii

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Chapter 5: Inverter System Accessories

Introduction 5–2
Component Descriptions 5–3
Dynamic Braking 5–6

Chapter 6: Troubleshooting and Maintenance

Troubleshooting 6–2
Monitoring Trip Events, History, & Conditions 6–5
Restoring Factory Default Settings 6–16
Maintenance and Inspection 6–17
Warranty 6–29

Appendix A: Glossary and Bibliography

Glossary A–2
Bibliography A–6

Appendix B: Serial Communications

Introduction B–2
ASCII Mode Communications B–5
Communications Reference Information B–18
ModBus Mode Communications B–21
ModBus Data Listing B–33

Appendix C: Drive Parameter Settings Tables

Introduction C–2
Parameter Settings for Keypad Entry C–2

Appendix D: CE–EMC Installation Guidelines

CE–EMC Installation Guidelines D–2
Precautions for EMC, Models SJ700-004 to -1500 D–4
Precautions for EMC, Models SJ700-1850 to -4000 D–5

Index

Revisions

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Revision History Table

SJ7002 Inverter

xix

No. Revision Comments Date of Issue

Initial release of manual NB206X August 2008 NB206X

A Add new inverter models from -004xxx to 037xxx, and models

-750Hxx to -4000Hxx
Numerous additions and corrections throughout manual

October 2009 NB206XA

Operation

Manual No.

xx

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Contact Information

Hitachi America, Ltd.
Industrial Sales Division
50 Prospect Avenue
Tarrytown, NY 10591
U.S.A.
Phone: [phone]
Fax: [phone]
Web site: www.hitachi-america.us/inverters

Hitachi Europe GmbH
Am Seestern 18
D-40547 Düsseldorf
Germany
Phone: [phone]
Fax: [phone]
Web site: www.hitachi-ds.com/en/product/inv/

Hitachi Asia Ltd.
16 Collyer Quay
#20-00 Hitachi Tower, Singapore 049318
Singapore
Phone: [phone]
Fax: [phone]

Hitachi Asia (Hong Kong) Ltd.
7th Floor, North Tower
World Finance Centre, Harbour City
Canton Road, Tsimshatsui, Kowloon
Hong Kong
Phone: [phone]
Fax: [phone]

Hitachi Australia Ltd.
Level 3, 82 Waterloo Road
North Ryde, N.S.W. 2113
Australia
Phone: [phone]
Fax: [phone]

Hitachi Industrial Equipment Systems Co., Ltd.
AKS Building, 3, Kanda Neribei-cho
Chiyoda-ku, Tokyo, 101-0022
Japan
Phone: [phone]
Fax: [phone]

Hitachi Industrial Equipment Systems Co, Ltd.
Narashino Division
1-1, Higashi-Narashino 7-chome
Narashino-shi, Chiba 275-8611
Japan
Phone: [phone]
Fax: [phone]
Web site: www.hitachi-ies.co.jp/english/

NOTE: To receive technical support for the Hitachi inverter you purchased, contact the Hitachi
inverter dealer from whom you purchased the unit, or the sales office or factory contact listed
above. Please be prepared to provide the following inverter nameplate informat io n:

1. Model

2. Date of purchase

3. Manufacturing number (MFG No.)

4. Symptoms of any inverter problem
If any inverter nameplate information is illegible, please provide your Hitachi contact with any
other legible nameplate items. To reduce unpredictable downtime, we recommend that you
stock a spare inverter.

Getting Started

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1

In This Chapter.... page

— Introduction....................................................................................... 2

— Inverter Specifications....................................................................... 6

— Introduction to Variable-Frequency Drives...................................... 14

— Frequently Asked Questions........................................................... 18

1–2

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Introduction

Introduction

Main Features Congratulations on your purchase of an SJ7002

Series Hitachi inverter! This inverter drive features
state-of-the-art circuitry and components to provide

Geting Started

high performance. The housing footprint is excep­tionally small, given the size of the corresponding
motor. The Hitachi SJ700
more than twenty inverter models to cover motor
sizes from 1/2 horsepower to 500 horsepower, in
either 230 VAC or 480 VAC power input versions.
The main features are:

• 200V Class and 400V Class inverters

• U.S. or European version available

• Sensorless vector control

• Regenerative braking circuit

• Different operator keypads available for RUN/

STOP control and setting parameters

• Built-in RS-422 communications interface to

allow configuration from a PC and for field bus
external modules

• Sixteen programmable speed levels

• Motor constants are programmable, or may be set

via auto-tuning

• PID control adjusts motor speed automatically to

maintain a process variable value

2 product line includes

Model SJ700-110HFUF2 (U.S. version)

The design of Hitachi inverters overcomes many of
the traditional trade-offs between speed, torque and
efficiency. The performance characteristics are:

• High starting torque of 150% rating or greater

• Continuous operation at 100% rated torque

within a 1:10 speed range (6/60 Hz / 5/50 Hz)
without motor derating

• Models from 0.4–22kW (1/2 to 30hp) have built-

in dynamic braking circuits

• Models from 0.4–11kW (1/2 to 15hp) have

optional built-in dynamic braking resistor

• Cooling fan has ON/OFF selection to provide

longer life

A full line of accessories from Hitachi is avail­able to complete your motor control application.
These include:

• Digital remote operator keypad

• Expansion card for sensor feedback

• Braking resistors

• Radio noise filters

• Built-in CE compliance filters

• Additional factory I/O network interface cards

(to be announced)

Model SJ700-037HFEF2

(European version)

Expansion Card - Encoder Input

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–3

Digital Operator Interface Components

The SJ7002 Series inverters have a detachable keypad (called a digital operator) on the front
panel of the housing. The particular keypad that comes with the inverter depends on the country
or continent corresponding to the particular model number. The standard digital operators
occupy just part of the keypad recess in the panel. Therefore, the inverter comes with a snap-in
panel filler plate that mounts below the keypad as shown.

These detachable keypads can be mounted in a NEMA cabinet panel door cut-out, for example.
Threaded metal inserts on the rear of the keypads facilitate this external mounting configura­tion. A short cable then connects the keypad unit to the connector in the inverter keypad recess.
See Chapter 3 for information on how to install and use these keypads and cables.

Getting Started

Digital Operator OPE-SRE

standard for -LFU and -HFU models

The digital operator / copy unit is optional, and
occupies the entire keypad recess when mounted. It
has the additional capability of reading (uploading)
the parameter settings in the in verter into its memory .
Then you can install the copy unit on another inverter
and write (download) the parameter settings into that
inverter. OEMs will find this unit particularly useful,
as one can use a single copy unit to transfer parame­ter settings from one inverter to many.

Other digital operator interfaces may be available
from your Hitachi distributor for particular industries
or international markets. Contact your Hitachi
distributor for further details.

Digital Operator OPE-S

standard for -HFE models

Optional Digital Operator / Copy Unit

SRW-0EX

1–4

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Introduction

Removable Components

Geting Started

The SJ7002 Series inverters are designed for long life and ease of service. Several components
are removable as shown below, aiding installation or parts replacement. Details on how and
when to remove these parts are in the referenced chapters.

Fan Unit

(See Chapter 6 for servicing)

Digital Operator and Panel Filler Plate

(See Chapter 3 for instructions)

Capacitor Bank for DC Link

(See Chapter 6 for servicing)

Auxiliary fan (on some models)

Control Signal Terminal Block

(See Chapter 4 for wiring)

Cable entry/exit plate

(See Chapter 2 for instructions)

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–5

Specifications Label and Agency Approvals

The Hitachi SJ7002 inverters have product specifications labels located on the front and the
right side of the housing, as shown below. The director reactor filters also have a product label.
Be sure to verify that the specifications on the labels match your power source, motor, and
application safety requirements.

Inverter model number
Motor capacity for this model

Power Input Rating:
frequency, voltage, phase, current

Output Rating:
frequency, voltage, current

Manufacturing codes:
lot number,

Model: SJ700-3150HFE2
kW/(HP): 315/(420)
Input/Entree: 50Hz,60Hz V 1 Ph A

Output/Sortie: 0 -120Hz 380-480V 3 Ph 600A
MFGNo. 79A T27453AA001 Date: 0709

Hitachi Industrial Equipment

Product label

50Hz,60Hz 380-480V 3 Ph 630A

Systems Co.,Ltd.

MADE IN JAPAN

NE17914-45

INVERTER

Getting Started

Model Number Convention

Product label

AMP'S 680 A
DRW. NO
NO Serial number
DATE NE17653

Hitachi Industrial Equipment Systems Co.,Ltd.

TYPE DCL-H-315

INS H CLASS

Production number

MADE IN JAPAN

The model number for a specific inverter contains useful information about its operating
characteristics. Refer to the model number legend below:

SJ700 004 H F U 2

Series

name

004 = 0.4 kW
007 = 0.75 kW
015 = 1.5 kW
022 = 2.2 kW
037 = 3.7 kW

055 = 5.5 kW
075 = 7.5 kW
110 = 11 kW
150 = 15 kW
185 = 18.5 kW

F

Version number (_, 2, 3, ...)

EMC filter installed at factory:
F=installed (without F=not installed)

Restricted distribution:
E=Europe, U=U.S.

Configuration type
F = with digital operator (keypad)

Input voltage:
H = three-phase 400V class
L = three phase only, 200V class

Applicable motor capacity in kW

220 = 22 kW
300 = 30 kW
370 = 37 kW
450 = 45 kW
550 = 55 kW

1850 = 185 kW
3150 = 315 kW
4000 = 400 kW

1–6

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Inverter Specifications

Inverter Specifications

Tables for 200V class inverters

Geting Started

Note that “General Specifications” on page 1–10 covers all SJ7002 inverters, followed by
footnotes for all specifications tables. The 200V models from –004 to –220LFU2
(0.5 to 30 HP) include internal dynamic braking units (see “

Dynamic Braking” on page 5–6).

Item 200V Class Specifications

SJ7002, 200V models, U.S. version 004LFUF2 007LFUF2 015LFUF2 022LFUF2 037LFUF2
Applicable motor size, 4-pole *2 HP0.51235

kW 0.4 0.75 1.5 2.2 3.7
Rated capacity, kVA, 200V / 240V 1.0 / 1.2 1.7 / 2.0 2.5 / 3.1 3.6 / 4.3 5.7 / 6.8
Rated input voltage 3-phase: 200 to 240V +10%/-15%, 50/60 Hz ±5%
Rated input current (A) 3.3 5.5 8.3 12 18
Rated output voltage *3 3-phase (3-wire) 200 to 240V (corresponding to input voltage)
Rated output current (A) 3 5 7.5 10.5 16. 5
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 85.1 89.5 92.3 93.2 94.0
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

Min. external braking resistance Ω 50 50 35 35 35
DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7

at 70% output 64 76 102 127 179
at 100% output 70 88 125 160 235
internal chopper2020202020
with external res. >150 >150 >150 >150 110

Item 200V Class Specifications

SJ7002, 200V models, U.S. version 055LFUF2 075LFUF2 110LFUF2 150LFUF2 185LFU2 220LFU2
Applicable motor size, 4-pole *2 HP7.51015202530

kW 5.5 7.5 11 15 18.5 22
Rated capacity, kV A, 200V / 240V 8.3 / 9.9 11.0 / 13.3 15.9 / 19.1 22.1 / 26.6 26.3 / 31.5 32.9 / 39.4
Rated input voltage 3-phase: 200 to 240V +10%/-15%, 50/60 Hz ±5%
Rated input current (A) 2635517084105
Rated output voltage *3 3-phase (3-wire) 200 to 240V (corresponding to input voltage)
Rated output current (A) 243246647695
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 94.4 94.6 94.8 94.9 95.0 95.0
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

Min. external braking resistance Ω 16 10 10 7.5 7.5 5
DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 6 / 13.2 6 / 13.2 6 / 13.2 14 / 30.8 14 / 30.8 14 / 30.8

at 70% output 242 312 435 57 5 698 820
at 100% output 32 5 425 600 800 975 1150
internal chopper202010101010
with external res. 140

>150

110 110 90 110

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–7

Tables for 400V class inverters

Item 200V Class Specifications, continued

SJ7002, 200V models, U.S. version 300LFU2 370LFU2 450LFU2 550LFU2
Applicable motor size *2 HP 40 50 60 75

kW 30 37 45 55
Rated capacity, kVA, 200V / 240V 41.9 / 50.2 50.2 / 60.2 63.0 / 75.6 76.2 / 91.4
Rated input voltage 3-phase: 200 to 240V +10/-15% , 50/60 Hz ±5%
Rated input current (A) 133 160 200 242
Rated output voltage *3 3-phase (3-wire) 200 to 240V (corresponding to input voltage)
Rated output current (A) 121 145 182 220
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 95.0 95.1 95.1 95.1
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 22 / 48.4 30 / 66 30 / 66 43 / 94.6

at 70% output 1100 1345 1625 1975
at 100% output 1550 1900 2300 2800
w/o braking unit 10 10 10 10
with braking unit 55–110% 45–90% 35–75% 30–60%

Note that “General Specifications” on page 1–10 covers all SJ7002 inverters, followed by
footnotes for all specifications tables. The 400V models from –007 to –220HFU2
(7.5 to 30 HP) include internal dynamic braking units (see “

Dynamic Braking” on page 5–6).

Getting Started

Item 400V Class Specifications

SJ7002 inverters,
400V models

Applicable motor size *2 HP12357.5

Rated capacity, kVA, 400 / 480V 1.7 / 2.0 2.5 / 3.1 3.6 / 4.3 5.7 / 6.8 9.7 / 11.6
Rated input voltage 3-phase (3-wire) 380 to 480V +10/-15%, 50/60 Hz ±5%
Rated input current (A) 2.8 4.2 5.8 9.9 13
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 2.5 3.8 5.3 9.0 14
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 89.5 92.3 93.2 94.0 94.4
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

Min. external braking resistance Ω 100 100 100 70 70
DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 3.5 / 7.7 6 / 13.2

U.S. version 007HFUF2 015HFUF2 022HFUF2 040HFUF2 055HFUF2
European ver. 007HFEF2 015HFEF2 022HFEF2 040HFEF2 055HFEF2

kW 0.75 1.5 2.2 4 5.5

at 70% output 76 102 127 179 242
at 100% output 88 125 160 235 325
internal chopper2020202020
with external res. >150 >150 >150 >150 130

1–8

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Geting Started

Inverter Specifications

SJ7002 inverters,
400V models

Applicable motor size *2 HP 10 15 20 25 30

Rated capacity, kVA, 400 / 480V 11 / 13.3 15.9/19.1 22.1 / 26.6 26.3 / 31.5 33.2 / 39.9
Rated input voltage 3-phase (3-wire) 380 to 480V +10/-15%, 50/60 Hz ±5%
Rated input current (A) 18 25 35 42 53
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 16 23 32 38 48
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 94.6 94.8 94.9 95.0 95.0
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

Min. external braking resistance Ω 35 35 24 24 20
DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 5 / 11 5 / 11 12 / 26.4 12 / 26.4 12 / 26.4

Item 400V Class Specifications

U.S. version 075HFUF2 110HFUF2 150HFUF2 185HFU2 220HFU2
European ver. 075HFEF2 110HFEF2 150HFEF2 185HFE2 220HFE2

kW 7.5 11 15 18.5 22

at 70% output 312 435 575 698 820
at 100% output 425 600 800 975 1150
internal chopper2010101010
with external res.

>150

130 140 140 110

Item 400V Class Specifications

SJ7002 inverters,
400V models

Applicable motor size *2 HP 40 50 60 75 100

Rated capacity, kVA, 400 / 480V 40.1 / 48.2 51.9 / 62.3 62.3 / 74.8 76.2/91.4 103.2/

Rated input voltage 3-phase (3-wire) 380 to 480V +10/-15%, 50/60 Hz ±5%
Rated input current (A) 64 83 99 121 164
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 58 75 90 110 149
Overload capacity, output current (A) 150% for 60 sec., 200% for 3 sec.
Efficiency at 100% rated output, % 95.1 95.1 95.1 95.1 95.2
Watt loss,

approximate (W)

Dynamic braking
approx. % torque,
short time stop *7

DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and built-in zero-phase reactor
Weight kg / lb 22 / 48.4 30 / 66 30 / 66 50 / 110 55 / 121

U.S. version 300HFU2 370HFU2 450HFU2 550HFU2 750HFU2
European ver. 300HFE2 370HFE2 450HFE2 550HFE2 750HFE2

kW 30 37 45 55 75

123.8

at 70% output 1100 1345 1625 1975 2675
at 100% output 1550 1900 2300 2800 3800
w/o braking unit 10% 10% 10% 10% 8%
with braking unit Refer to separate DB Unit instruction manual or contact your

Hitachi distributor

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–9

The 400V models from –1850 to –4000HFU2/HFE2 (250 to 525 HP) include a DC reactor and
ferrite core.

Item 400V Class Specifications

SJ7002 inverters,
400V models

Applicable motor size *2 HP 125 150 200 250 425 525

Rated capacity, kVA, 400 / 480V 121.9/146.3 150.3/180.4 180.1/216.1 256 / 308 416 / 499 554 / 665
Rated input voltage 3-phase (3-wire) 380 to 480V +10/-15%, 50/60 Hz ±5%
Rated input current (A) 194 239 286 389 630 840
Rated output voltage *3 3-phase (3-wire): 380 to 480V (corresponding to input voltage)
Rated output current (A) 176 217 260 370 600 800
Overload capacity, output current (A) 50% for 60 sec., 200% for 0.5 sec. 50% for 60 sec., 180% for 0.5 sec.
Inv. efficiency at 100% rated output, % 95.2 95.2 95.2 96.5 96.2 96.3
Inverter Watt loss,

approximate (W)

DCL efficiency at 100% rated output, % — — — 99.9 99.9 99.9
DCL Watt loss,

approximate (kW)

Dynamic braking
approx. % torque,
short time stop *7

DC braking Variable operating frequency, time, and braking force
Electrical filtering Built-in EMC filter and zero-phase reactor External DC reactor and ferrite core
Weight kg / lb 55 / 121 55 / 121 70 / 54 140 / 308 210 / 463 360 / 792

U.S. version 900HFU2 1100HFU2 1500HFU2 1850HFU2 3150HFU2 4000HFU2
European ver. 9000HFE2 1100HFE2 1320HFE2 1850HFE2 3150HFE2 4000HFE2

kW 90 110 150 185 315 400

at 70% output 3375 3900 4670 4700 8000 10500
at 100% output 4800 5550 6650 6700 11500 15000

at 70% output — — — 0.1 0.1 0.1
at 100% output — — — 0.2 0.2 0.2
w/o braking unit 8% 8% 8% 10% 10% 10%
with braking unit Refer to separate DB Unit instruction manual or contact your Hitachi distributor

Getting Started

Footnotes for the preceding tables and the table that follows:

Note 1: The protection method conforms to JEM 1030.
Note 2: The applicable motor refers to Hitachi standard 3-phase motor (4-pole). When using

other motors, care must be taken to prevent the rated motor current (50/60 Hz) from
exceeding the rated output current of the inverter.

Note 3: The output voltage decreases as the main supply voltage decreases (except when

using the AVR function). In any case, the output voltage cannot exceed the input
power supply voltage.

Note 4: To operate the motor beyond 50/60 Hz, consult the motor manufacturer for the

maximum allowable rotation speed.

Note 5: When SLV is selected, please set the carrier frequency higher than 2.1 kHz.
Note 6: At the rated voltage when using a Hitachi standard 3-phase, 4-pole motor (when

selecting sensorless vector control—SLV).

Note 7: The braking torque via capacitive feedback is the average deceleration torque at the

shortest deceleration (stopping from 50/60 Hz as indicated). It is not continuous
regenerative braking torque. The average decel torque varies with motor loss. This
value decreases when operating beyond 50 Hz. If a large regenerative torque is
required, the optional regenerative braking resistor should be used.

Note 8: The frequency command will equal the maximum frequency at 9.8V for input voltage

0 to 10 VDC, or at 19.6 mA for input current 4 to 20 mA. If this characteristic is not
satisfactory for your application, contact your Hitachi sales representative.

Note 9: The storage temperature refers to the short-term temperature during transport.
Note 10: Conforms to the test method specified in JIS C0050 (1999). For the model types

excluded in the standard specifications, contact your Hitachi sales representative.

Note 11: NEMA 1 applies up to 22kW. An optional wire-entry conduit box is required for

0.4kW to 55kW models to meet NEMA 1 rating.

1–10

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Inverter Specifications

General

The following table (continued on next page) applies to all SJ7002 inverter models.

Specifications

Item General Specifications

Protective enclosure *1, *11 IP20 (NEMA 1); models -750xFU2 to -4000xFU2 is IP00

Geting Started

Control method Line-to-line sine wave pulse-width modulation (PWM) control
Output frequency range *4 0.1 to 400 Hz
Frequency accuracy Digital command: ± 0.01% of the maximum frequency

Frequency setting resolution Digital: ± 0.01 Hz; Analog: (max. frequency)/4000, [O] terminal: 12-bit 0 to 10V;

Volt./Freq. characteristic *5 V/F optionally variable (30 to 400Hz base frequency), V/F control (constant torque,

Speed fluctuation ± 0.5% (sensorless vector control or 0-Hz range sensorless vector control)
Acceleration/deceleration time 0.01 to 3600 sec., (linear curve profiles, accel./decel. selection), two-stage accel./decel.
Starting Torque *6 200% at 0.3 Hz (SLV or 0Hz-range SLV), 150% at 0 Hz-range SLV, with motor one

Carrier frequency range Models -004xFU2 to -550xFU2: 0.5 to 15.0 kHz;

DC braking Performs at start under set frequenc y at declaration, via a n extern al input (brakin g force,

Overload capacity (output current ) 150% for 60 seconds, 200% (180% for 75kW / 100HP and larger) for 0.5 seconds

Freq.
setting

FW/RV
Run

Intelligent Input
terminals (assign eight
functions to terminals)

Input

signal

Thermistor input One terminal (PTC characteristics)

Operator keypad Up and Down keys / Value settings
Potentiometer Analog setting via potentiometer on operator keypad
External signal *8 0 to 10 VDC and –10 to +10 VDC (input impedance 10k Ohms), 4 to 20 mA (input

Serial port RS485 interface
Operator panel Run key / Stop key (change FW/RV by function command)
External signal FW Run/Stop (NO contact), RV set by terminal assignment (NC/NO),

Serial port RS485 interface

Analog command: ± 0.2% (at 25°C ± 10°C)

[OI] terminal: 12-bit, 4-20mA; [O2] terminal: 12-bit –10 to +10V

reduced torque), sensorless vector control, 0-Hz-range sensorless vector control

frame size down)
For -750Hxx to -1500Hxx: 180% at 0.3Hz

150% at 0 Hz range with feedback board (with 0Hz-range sensorless vector control or
with motor one frame size down)
For -750Hxx to -1500Hxx: 130% at 0.3Hz

Models -750xFU2 to -1500xFU2: 0.5 to 10.0 kHz;
Models -1850HFU2 to -4000HFU2: 0.5 to 3.0 kHz

time, and operating frequency)

impedance 250 Ohms), Potentiometer (1k to 2k Ohms, 2W)

3-wire input available

RV (reverse run/stop), CF1~CF4 (multi-speed select), JG (jogging), DB (external DC
braking), SET (set 2nd motor data), 2CH (2-stage accel./decel.), FRS (free-run stop),
EXT (external trip), USP (unattended start protection), CS (commercial power source),
SFT (software lock), AT (analog input voltage/current select), SET3 (set 3rd motor
data), RS (reset inverter), STA (start, 3-wire interface), STP (stop, 3-wire interface),
F/R (FW/RV 3-wire interface), PID (PID ON/OFF), PIDC (PID reset), CAS (control
gain setting), UP (remote control Up function, motorized speed pot.), DWN (remote
control Down function, motorized speed pot.), UDC (remote control data clearing),
OPE (Operator control), SF1-SF7 (Multispeed bits 0-7), OLR (Overload limit change),
TL (torque limit enable), TRQ1 (torque limit selection bit 1, LSB), TRQ2 (torque limit
selection bit 2, MSB), PPI (Proportional / Proportional/Integral mode selection), BOK
(Brake confirmation signal), ORT (Orientation – home search), LAC (LAC: LAD
cancel), PCLR (Position deviation reset), STAT (pulse train position command input
enable), ADD (trigger for frequency addition), F-TM (forcible-terminal operation),
ATR (permission of torque commend input), KHC (cumulative power clearance), SON
(servo ON), FOC (pre-excitation), MI1 (general-purpose input 1), MI2 (general­purpose input 2), MI3 (general-purpose input 3), MI4 (general-purpose input 4), MI5
(general-purpose input 5), MI6 (general-purpose input 6), MI7 (general-purpose input

7), MI8 (general-purpose input 8), AHD (analog command holding), NO (not selected)

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–11

Item General Specifications

Output
signal

Display monitor Output frequency, output current, motor torque, scaled value of output frequency , trip

Other user-settable parameters V/F free-setting (up to 7 points), freq. upper/lower limit, freq. jump, accel/decel curve

Protective functions Over-current, overload, braking resistor overload, over voltage, EEPR OM error, under-

Environ-

ment

Coating color Gray

Accessories

Operator input devices OPE–SRE (4-digit LED with potentiometer) / OPE–S (4-digit LED w/o potentiometer),

Intelligent Output terminals
(assign six functions to five
open collector outputs and
one relay NO-NC contact)

Intelligent monitor output
terminals

Temperature (*9) Operating (ambient): -10 to 50°C / Storage: -20 to 65°C
Humidity 20 to 90% relative humidity (non-condensing)
Vibration *10

Location Altitude 1,000 m or less, indoors (no corrosive gasses or dust)

Feedback expansion card SJ-FB (vector control loop speed sensor)
Digital input exp. card SJ-DG (4-digit BCD / 16-bit binary)
DeviceNet expansion card Option to support the open-network DeviceNet function
LonW orks expansion card Option to support the open-network LonWorks function
Profibus-DP option Option to support the open-network Profibus-DP function
Other optional accessories EMI filter, AC reactor, DC reactor, radio noise filter, braking resistors, braking units,

RUN (run signal), FA1 (Frequency arrival type 1 – constant speed), FA2 (Freq uency
arrival type 2 – over-frequency), OL (overload advance notice signal 1), OD (Output
deviation for PID control), AL (alarm signal), FA3 (Frequency arrival type 3 – at­frequency), OTQ (over-torque signal), IP (Instantaneous power failure signal), UV
(Under-voltage signal), TRQ (In torque limit), RNT (Run time over), ONT (Power-ON
time over), THM (thermal alarm), BRK (Brake release signal), BER (Brake error
signal), ZS (Zero speed detect), DSE (speed deviation maximum), POK (Positioning
completion), F A4 (Fr equenc y arri va l type 4 – o ver -freque ncy 2) , FA5 (Frequency arriv al
type 5 – at-frequency 2), OL2 (Overload notice advance signal 2), FBV (PID feedback
comparison), NDc (communication line disconne ction), LOG1 (logical operation result

1), LOG2 (logical operation result 2), LOG3 (logical operation result 3), LOG4 (logical
operation result 4), LOG5 (logical operation result 5), LOG6 (logical operation result

6), WAC (capacitor life warning), WAF (cooling fan speed drop), FR (starting contact
signal), OHF (heat sink overheat warning), LOC (low-current indication signal), MO1
(general-purpose output 1), MO2 (general-purpose output 2), MO3 (general-purpose
output 3), MO4 (general-purpose output 4), MO5 (general-purpose output 5), MO6
(general-purpose output 6), IRDY (inverter ready), FWR (forward rotation signal), RVR
(reverse rotation signal), MJA (major failure signal), Terminals 11-13 or 11-14 automat­ically configured as AC0-AC2 or AC0-AC3 per alarm code output selection

Analog voltage monitor, analog current monitor (8-bit resolution), and PWM output, on
terminals [AM], [AMI], [FM]

history, I/O terminal condition, electrical power and other parameters

selection, manual torque boost value and freq. adjustment, energy saving operation,
analog meter tuning, start frequency, carrier frequency, electronic thermal protection
level, external frequency output zero/span reference, external frequency input bias start/
end, analog input selection, retry after trip, restart after instantaneous power failure,
various signal outputs, reduced voltage start, overload restriction, default value setting
(US, Europe, Japan), automatic deceleration at power failure, AVR function, fuzzy
accel/decel, auto-tuning (on-line/off-line), high-torque multi-motor operation (sensor­less vector control of two motors by one inverter)

voltage error, CT (current transformer) error, CPU error, external trip, USP error,
ground fault, input over voltage, instantaneous power failure, expansion card 1 error,
expansion card 2 error, inverter thermal trip, phase failure detection, IGBT error, therm­istor error

Models SJ700–004xxx to 220xxx: 5.9 m/s
Models SJ700–300xx to 1500xxx: 2.94 m/s
Models SJ700–3150xx to 4000xxx: 1.96 m/s

LCR filter, communication cables

Optional: OPE-SR (4-digit LED with potentiometer, Japanese/English overlay),
SRW–0EX Multilingual operator with copy function (English, Spanish, French,
German, Italian, and Portuguese)

2

(0.6G), 10 to 55 Hz

2

(0.3G), 10 to 55 Hz

2

(0.2G), 10 to 55 Hz

Getting Started

1–12

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Inverter Specifications

Signal Ratings Detailed ratings are in “Specifications of Control and Logic Connections” on page 4–9.

Signal / Contact Ratings

Built-in power for inputs 24VDC supply, 100 mA maximum
Intelligent (programmable) logic inputs 27VDC maximu m, 4.7kΩ input impedance

Geting Started

Intelligent (programmable) logic outputs Open collector type, 50mA max. ON state current, 27 VDC maximum OFF state voltage
Thermistor input Minimum thermistor power 100mW
PWM output 0 to 10VDC, 1.2 mA max., 50% duty cycle
Voltage analog output 0 to 10VDC, 2 mA max.
Current analog output 4-20 mA, nominal load impedance 250Ω
Analog input, current 4 to 19.6 mA range, 20 mA nominal
Analog input, voltage unipolar 0 to 9.6 VDC range, 10VDC nominal, 12VDC max., input impedance 10 kΩ
Analog input, voltage bipolar –9.6 to 9.6 VDC range, ±10VDC nominal, ±12VDC max., input impedance 10 kΩ
+10V analog reference 10VDC nominal, 1 0 mA maximum
Alarm relay, normally closed contacts Maximum loads: 250VAC, 2A; 30VDC, 8A resistive load

Alarm relay, normally open contacts 250VAC, 1A; 30VDC 1A max. resistive load /

250VAC, 0.2A; 30VDC, 0.6A inductive load
Minimum loads: 100 VAC, 10mA; 5VDC, 100mA

250VAC, 0.2A; 30VDC, 0.2A max. inductive load
Min. loads: 100 VAC, 10mA; 5VDC, 100mA

DCL Filter Specifications

Carrier Frequency Derating

Direct reactor filters (DCL) are a v ailable for the Hi tachi high-capacity SJ7002 in v erters, models

-1850HFU2 to -4000HFU2. The DCL specifications are in the following table.

Item DCL Specifications

DCL models, DCL-H-xxx 185 315 400
Rated current (A) 515.0 680 1042
Insulation class Type H
Weight kg / lb. 65 75 90

The maximum carrier frequency Fcthat provides full inverter rated output depends on the
particular inverter model. However, you may operate an inverter at the maximum settable F

c

with an output derating. Refer to the table below for the carrier frequency values and output
deratings.

200V Class Inverters

Capacity

(kW)

0.4 15 100% 15 12 95% (60.8A or less)

0.75 15 100% 18.5 10 90% (68.4A or less)

1.5 15 100% 22 7 70% (66.5A or less)

2.2 15 100% 30 5 80% (96.8A or less)

3.7 / 4.0 15 100% 37 10 75% (108.7A or less)

5.5 15 100% 45 5 70% (127.4A or less)

7.5 15 100% 55 5 70% (154.0A or less)
11 12 90% (41.4A or less) — — —

Maximum

(kHz)

F

c

Derating at

Fc = 15 kHz

Capacity

(kW)

Maximum

(kHz)

F

c

Derating at

Fc = 15 kHz

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–13

400V Class Inverters

Capacity

(kW)

0.75 15 100% 37 8 80% (60.0A or less)

1.5 15 100% 45 9 75% (68.2A or less)

2.2 15 100% 55 6 60% (67.2A or less)

3.7 15 100% 75 6 85% (126.7A or less)

5.5 15 100% 90 4 75% (132.0A or less)

7.5 15 100% 110 6 70% (151.9A or less)
11 15 100% 150 3 60% (156.0A or less)
15 14 95% (30.4A or less) 185 3 100%

18.5 10 90% (34.2A or less) 315 3 100%
22 6 75% (36.0A or less) 400 3 80% (640.0A or less)
30 10 75% (43.5A or less) — — —

Maximum

(kHz)

F

c

Derating at

Maximum Fc

Capacity

(kW)

Maximum

(kHz)

F

c

Derating at

Maximum Fc

NOTE: When replacing an SJ300 inverter combined with LCR filter, please check the type
code of LCR filter and consult for compatibility (75 to132kW).

Getting Started

1–14

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Introduction to Variable-Frequency Drives

Introduction to Variable-Frequency Drives

The Purpose of Motor Speed Control for Industry

Geting Started

What is an Inverter?

Hitachi inverters provide accurate speed control for 3-phase AC induction motors. Y ou connect
AC power to the inverter, and connect the inverter to the motor. Many applications can benefit
from the use of variable-speed drives in several ways:

• Energy savings - HVAC

• Need to coordinate speed with an adjacent process - textiles and printing presses

• Need to control acceleration and deceleration (torque)

• Sensitive loads - elevators, food processing, pharmaceuticals
The term inverter and variable-frequency drive are related and somewhat interchangeable. An

electronic drive for an AC motor controls the motor’s speed by varying the frequency of the
power sent to the motor.

An inverter, in general, is a device that converts DC power to AC power. The figure below
shows how the variable-frequency drive employs an internal inverter. The drive first converts
incoming AC power to DC through a rectifier bridge, creating an internal DC bus voltage. Then
the inverter circuit converts the DC back to AC again to power the motor. The special inverter
can vary its output frequency and voltage according to the desired motor speed.

Power

Input

L1/R

L2/S

L3/T

Converter

Rectifier

Variable-frequency Drive

Internal DC Bus

+

+

Inverter

U/T1
V/T2

Motor

Torque and Constant Volts/ Hertz Operation

W/T3

–

The simplified drawing of the in v erter shows three double-throw switches. In Hitachi inverters,
the switches are actually IGBTs (isolated gate bipolar transistors). Using a commutation
algorithm, the microprocessor in the drive switches the IGBTs ON and OFF at a very high
speed to create the desired output waveforms. The inductance of the motor windings helps
smooth out the pulses.

In the past, AC variable speed drives used an
open loop (scalar) technique to control speed.
The constant-volts-per-hertz operation
maintains a constant ratio between the applied
voltage and the applied frequency. With these
conditions, AC induction motors inherently
delivered constant torque across the operating
speed range. For some applications, this scalar
technique was adequate.

Today, with the advent of sophisticated micro­processors and digital signal processors
(DSPs), it is possible to control the speed and
torque of AC induction motors with unprece­dented accuracy. The SJ700
tions required to achieve superior performance. The technique is referred to as sensorless
vector control. It allows the drive to continuously monitor its output voltage and current, and
their relationship to each other. From this it mathematically calculates two vector currents. One

2 utilizes these devices to perform complex mathematical calcula-

Output

voltage

100%

V

Constant torque

0

Output frequency

f

100%

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–15

Inverter Input and Three-Phase Power

Inverter Output to the Motor

vector is related to motor flux current, and the other to motor torque current. The ability to
separately control these two vectors is what allows the SJ700
speed performance and speed control accuracy.

The Hitachi SJ7002 Series of inverters includes two sub-groups: the 200V class and the 400V
class inverters. The drives described in this manual may be used in either the United States or
Europe, although the exact voltage level for commercial power may be slightly different from
country to country. Accordingly, a 200V class inverter requires (nominal) 200 to 240VAC, and
a 400V class inverter requires from 380 to 480VAC. All SJ700
input power, whether 200V or 400V class.

TIP: If your application only has single phase power available, refer to the Hitachi SJ100
Series inverters. SJ100 inverters of 3HP or less can accept single phase input power.

The common terminology for single phase power is Line (L) and Neutral (N). Three-phase
power connections are usually labeled Line 1 (L1), Line 2 (L2) and Line 3 (L3). In any case,
the power source should include a ground connection. That ground connection will need to
connect to the inverter chassis and to the motor frame (see “Wire the Inverter Output to Motor”

on page 2–26).

The AC motor must be connected only to the inverter’s
output terminals. The output terminals are uniquely
labeled (to differentiate them from the input terminals)
with the designations U/T1, V/T2, and W/T3. This
corresponds to typical motor lead connection designa­tions T1, T2, and T3. It is often not necessary to connect
a particular inverter output to a particular motor lead for
a new application. The consequence of swapping any
two of the three connections is the reversal of the motor
direction. In applications where reversed rotation could
cause equipment damage or personnel injury, be sure to
verify direction of rotation before attempting full-speed
operation. For safety to personnel, you must connect the
motor chassis ground to the ground connection at the
bottom of the inverter housing.

Notice the three connections to the motor do not include one marked “Neutral” or “Return.”
The motor represents a balanced “Y” impedance to the inverter, so there is no need for a
separate return. In other words, each of the three “Hot” connections serves also as a return for
the other connections, because of their phase relationship.

The Hitachi inverter is a rugged and reliable device. The intention is for the inverter to assume
the role of controlling power to the motor during all normal operations. Therefore, this manual
instructs you not to switch OFF power to the inve rter while the motor i s running (unless it is an
emergency stop). Also, do not install or use disconnect switches in the wiring from the inverter
to the motor (except thermal disconnect). Of course, safety-related devices such as fuses must
be in the design to break power during a malfunction, as required by NEC and local codes.

2 to deliver extraordinary low-

2 inverters require three-phase

3-Phase

AC Motor

U/T1

W/T3

V/T2

Earth

GND

Getting Started

1–16

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Introduction to Variable-Frequency Drives

Intelligent Functions and Parameters

Geting Started

Much of this manual is devoted to describing how
to use inverter functions and how to configure
inverter parameters. The inverter is microproces­sor-controlled, and has many independent
functions. The microprocessor has an on-board
EEPROM for parameter storage. The inverter’s
front panel keypad provides access to all
functions and parameters, which you can access
through other devices as well. The general name
for all these devices is the digital operator, or
digital operator panel. Chapter 2 will show you
how to get a motor running, using a minimal set
of function commands or configuring parameters.

The optional read/write programmer will let you
read and write inverter EEPROM contents from
the programmer. This feature is particularly
useful for OEMs who need to duplicate a particu­lar inverter’s settings in many other inverters in
assembly-line fashion.

Braking In general, braking is a force that attempts to slow or stop motor rotation. So it is associated

with motor deceleration, but may also occur even when the load attempts to drive the motor
faster than the desired speed (overhauling). If you need the motor and load to decelerate
quicker than their natural deceleration during coasting, we recommend installing a braking
resistor. The dynamic braking unit (built into certain SJ700
energy into a resistor to slow the motor and load (see “

Dynamic Braking” on page 5–6 for more information). For loads that continuously overhaul

“

the motor for extended periods of time, the SJ700
distributor).

The inverter parameters include acceleration and deceleration, which you can set to match the
needs of the application. For a particular inverter, motor, and load, there will be a range of
practically achievable accelerations and decelerations.

2 may not be suitable (contact your Hitachi

2 models) sends excess motor

Introduction” on page 5–2 and

Velocity Profiles The SJ7002 inverter is capable of sophisti-

cated speed control. A graphical representa­tion of that capability will help you
understand and configure the associated
parameters. This manual makes use of the
velocity profile graph used in industry
(shown at right). In the example, the acceler­ation is a ramp to a set speed, and the decel­eration is a decline to a stop.

Speed

Fixed speed

Accel Decel

t

Velocity Profile

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–17

Acceleration and deceleration settings
specify the time required to go from a stop to
maximum frequency (or visa versa). The
resulting slope (speed change divided by
time) is the acceleration or deceleration. An
increase in output frequency uses the accel­eration slope, while a decrease uses the
deceleration slope. The accel or decel time a
particular speed change depends on the
starting and ending frequencies. However,
the slope is constant, corresponding to the
full-scale accel or decel time setting.

For example, the full-scale acceleration
setting (time) may be 10 seconds—the time
required to go from 0 to 60 Hz.

The SJ700

2 inverter ca n store up to 16 preset

speeds. And, it can apply separate accelera­tion and deceleration transitions from any
preset to any other preset speed. A multi­speed profile (shown at right) uses two or
more preset speeds, which you can select via
intelligent input terminals. This external
control can apply any preset speed at any
time. Alternatively, the selected speed is
infinitely variable across the speed range.
You can use the potentiometer control on the
keypad for manual control. The drive
accepts analog 0-10V signals and 4-20 mA
control signals as well.

The inverter can drive the motor in either
direction. Separate FW and RV commands
select the direction of rotation. The motion
profile example shows a forward motion
followed by a reverse motion of shorter
duration. The speed presets and analog
signals control the magnitude of the speed,
while the FW and RV commands determine
the direction before the motion starts.

Speed

Speed

Speed

Maximum speed

0

Acceleration

Acceleration (time) setting

Speed 1

Multi-speed Profile

Forward move

Bi-directional Profile

Getting Started

t

Speed 2

t

t

Reverse move

NOTE: The SJ7002 can move loads in both directions. However, it is not designed for use in
servo-type applications that use a bipolar velocity signal that determines direction.

1–18

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Frequently Asked Questions

Frequently Asked Questions

Q. What is the main advantage in using an inverter to drive a motor, compared to alternative

solutions?

A. An inverter can vary the motor speed with very little energy loss, unlike mechanical

Geting Started

Q. The term “inverter” is a little confusing, since we also use “drive” and “amplifier” to

or hydraulic speed control solutions. The resulting energy savings can often pay for
the inverter in a relatively short time.

describe the electronic unit that controls a motor. What does “inverter” mean?

A. The terms are used somewhat interchangeably in industry. Nowadays, the terms

drive, variable-frequency drive, variable-speed drive, and inverter are generally used
to describe electronic, microprocessor-based motor speed controllers. In the past,

variable speed drive also referred to various mechanical means to vary speed. Ampli­fier is a term almost exclusively used to describe drives for servo or stepper motors.

Q. Although the SJ700

cation?

A. Yes, sometimes an inverter can be used simply as a “soft-start” device, providing

controlled acceleration and deceleration to a fixed speed. Other functions of the

2 may be useful in such applications, as well. However, using a variable speed

SJ700
drive can benefit many types of industrial and commercial motor applications, by
providing controlled acceleration and deceleration, high torque at low speeds, and
energy savings over alternative solutions.

Q. Can I use an inverter and AC induction motor in a positioning application?

A. That depends on the required precision, and the slowest speed the motor must turn

and still deliver torque. The SJ700
turning the motor at only 0.3 Hz. DO NOT use an inverter if you need the motor to
stop and hold the load position without the aid of a mechanical brake (use a servo or
stepper motion control system).

Q. Does the optional digital operator interface or the PC software (DOP Professional)

provide features beyond what is available from the keypad on the unit?

A. Yes. However, note first that the same set of parameters and functions are equally

accessible from either the unit’s keypad or from remote devices. The DOP Profes­sional PC software lets you save or load inverter configurations to or from a disk file.
And, the hand-held digital operator provides hard-wired terminals, a safety require­ment for some installations.

Q. Why does the manual or other documentation use terminology such as “200V class”

instead of naming the actual voltage, such as “230 VAC?”

A. A specif ic in v erter model is set at the factory to w ork across a volta ge range particular

to the destination country for that model. The model specifications are on the label on
the side of the inverter. A European 200V class inverter (“EU” marking) has different
parameter settings than a USA 200V class inverter (“US” marking). The initialization
procedure (see “
inverter for European or US commercial voltage ranges.

2 inverter is a variable speed drive, can I use it in a fixed-speed appli-

2 inverter will deliver 200% rated torque while

Restoring Factory Default Settings” on page 6–16) can set up the

Q. Why doesn’t the motor have a neutral connection as a return to the inverter?

A. The motor theoretically represents a “balanced Y” load if all three stator windings

have the same impedance. The Y connection allows each of the three wires to alter­nately serve as input or return on alternate half-cycles.

Q. Does the motor need a chassis ground connection?

A. Yes, for several reasons. Most importantly, this provides protection in the event of a

short in the motor that puts a hazardous voltage on its housing. Secondly, motors
exhibit leakage currents that increase with aging. Lastly, a grounded chassis generally
emits less electrical noise than an ungrounded one.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

1–19

Q. What type of motor is compatible with the Hitachi inverters?

A. Motor type – It must be a three phase AC induction motor. Use an inverter-grade

motor that has 800V insulation for 200V class inverters, or 1600V insulation for
400V class.
Motor size – In practice, it’s better to find the right size motor for your application;
then look for the inverter to match the motor.

NOTE: There may be other factors that will affect motor selection, including heat dissipation,
motor operating speed profile, enclosure type, and cooling method.

Q. How many poles should the motor have?

A. Hitachi inverters can be configured to operate motors with 2, 4, 6, or 8 poles. The

greater the number of poles, the slower the top motor speed will be, but it will have
higher torque at the base speed.

Q. Will I be able to add dynamic (resistive) braking to my Hitachi SJ700

initial installation?

A. Yes. Models SJ700-004XXX through SJ700-220XXX have built-in dynamic braking

units. You can add an external resistor to these models to improve braking perfor­mance. Models SJ700-300XXX through SJ700-4000XXX require you to add an
external braking unit. The braking resistor connects to the external braking unit for
those models. More information on dynamic braking is located in Chapter 5.

Q. How will I know if my application will require resistive braking?

A. For new applications, it may be difficult to tell before you actually test a motor/drive

solution. In general, some applications can rely on system losses such as friction to
serve as the decelerating force, or otherwise can tolerate a long decel time. These
applications will not need dynamic braking. However, applications with a combina­tion of a high-inertia load and a required short decel time will need dynamic braking.
This is a physics question that may be answered either empirically or through
extensive calculations.

2 drive after the

Getting Started

Q. Several options related to electrical noise suppression are available for the Hitachi invert-

ers. How can I know if my application will require any of these options?

A. The purpose of these noise filters is to reduce the inverter electrical noise so the

operation of nearby electrical devices is not affected. Some applications are governed
by particular regulatory agencies, and noise suppression is mandatory. In those cases,
the inverter must have the corresponding noise filter installed. SJ700 models from

-004XXX (0.4kW) to -1500XXX (150kW) have built-in EMC filters. Other applica­tions may not need noise suppression, unless you notice electrical interference with
the operation of other devices.

Q. The SJ700

processes, heating, or process industries in general. How could the PID loop feature be
useful in my application?

A. You will need to determine the particular main variable in your application the motor

2 features a PID loop feature. PID loops are usually associated with chemical

affects. That is the process variable (PV) for the motor. Over time, a faster motor
speed will cause a faster change in the PV than a slow motor speed will. By using the
PID loop feature, the inverter commands the motor to run at the optimal speed
required to maintain the PV at the desired value for current conditions. Using the PID
loop feature will require an additional sensor and other wiring, and is considered an
advanced application.

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Inverter Mounting

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2

and Installation

In This Chapter.... page

— Orientation to Inverter Features........................................................ 2

— Basic System Description................................................................. 5

— Step-by-Step Basic Installation......................................................... 6

— Powerup Test.................................................................................. 27

— Using the Front Panel Keypad........................................................ 29

— Emergency Stop Function............................................................... 37

2–2

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Orientation to Inverter Features

Orientation to Inverter Features

Unpacking and Inspection

and Installation

Inverter Mounting

Main Physical Features

Please take a few moments to unpack your new SJ7002 inverter and perform these steps:

1. Look for any damage that may have occurred during shipping.

2. Verify the contents of the box include:
a. One SJ700
b. One Instruction Manual (supplied by printed book for –FU2/–FF2 models, supplied on

CR-ROM for –FE2 models)

c. One SJ700
d. One packet of desiccant—discard (not for human consumption)

3. Inspect the specifications label on the front or side of the inverter. Mak e sure it matches the

product part number you ordered.

The SJ7002 Series inverters vary in size according to the current output rating and motor size
for each model number. All feature the same basic keypad and connector interface for
consistent ease of use . The inverter constructi on has a heat sink at the back of the housing. The
fans enhance heat sink performance. Mounting holes are pre-drilled in the heat sink for your
convenience. Never touch the heat sink during or just after operation; it can be very hot.

The electronics housing and front panel are built onto the front of the heat sink. The front panel
has three levels of physical access designed for convenience and safety:

• First-level access – for basic use of inverter and editing parameters during powered

operation (power is ON)

• Second-level access – for wiring the inverter power supply or motor (power is OFF)

• Third-level access – for accessing the expansion bay for adding/removing expansion boards

(power is OFF)

2 inverter

2 Quick Reference Guide

1. First-level Access - V ie w the unit just as it
came from the box as shown. The
OPE-SRE or OPE-S digital operator
keypad comes installed in the in verter. The
four-digit display can show a variety of
performance parameters. LEDs indicate
whether the display units are Hertz, Volts,
Amperes, or kW. Other LEDs indicate
Power (external), and Run/Stop Mode and
Program/Monitor Mode status. Membrane
keys Run and Stop/Reset, and a Min/Max
frequency control knob (OPE-SRE only)
control motor operation. These controls
and indicators are usually the only ones
needed after the inverter installation is
complete.

The FUNC., , , and STR keys
allow an operator to change the inverter’s
functions and parameter values, or to select
the one monitored on the 4-digit display.
Note that some parameters may not be
edited if the inverter is in Run mode.

2

1

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2. Second-level access - First, ensure no

power source of any kind is connected
to the inverter. If power has been
connected, wait 10 minutes after power­down and verify the Charge Lamp
indicator is OFF to proceed. Then locate
the two screws at the bottom corners of
the main front panel. Use a Phillips
screwdriver to loosen the scre ws and tilt
the cover outward for removal. (The
screws are retained in the cover.)

Retention screws

Notice the large power terminals at the bottom of the wiring area. The rubber grommets
below the power terminals are for wire entry/exit to the power source and motor. Never
operate the inverter with the front panel removed.

The control terminals connect logic or analog signals for control and monitoring of the
inverter. The nearby alarm relay provides both normally-open and normally-closed logic for
interface to an external alarm. The alarm circuit may carry hazardous live voltages even
when the main power to the inv erter is OFF. So, never directly touch any terminal or circuit
component.

2–3

Inverter Mounting

and Installation

Charge lamp

Logic connector

Power terminals

Wire entry/exit plate

WARNING: Be sure to wait 10 minutes after powerdown and verify the char ge l amp indicato r
is OFF to proceed. Otherwise there is the risk of electric shock.

indicator

2–4

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Orientation to Inverter Features

Inverter Mounting

and Installation

3. Third-level access - The SJ7002
provides for field installation of
interface circuits. These circuits are
on expansion cards, to be installed in
the expansion bay. To access the
expansion bay, you will need to
remove the upper front panel. Use
the latch to release the digital
operator (the panel filler plate may
remain). Remove the two retention
screws the bottom corners of the
upper front panel. Lift up at the
bottom, then disengage the two
hinge latches at the top.

The expansion bay has two sites for
adding expansion cards. Each card
connects via the interface connector,
and mounts using three standoff
screw locations. Further details on
accessories are in Chapter 5. You
may also refer to the instruction
manual that comes with each type of
expansion card.

Latch to release digital operator

Retention screws

Expansion bay Expansion connectors

The following sections will describe the system design and guide you through a step-by-step
installation process. After the section on wiring, this chapter will show how to use the front
panel keys to access functions and edit parameters.

Basic System Description

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

A motor control system will obviously include a motor and inverter, as well as a breaker or
fuses for safety. If you are connecting a motor to the inverter on a test bench just to get started,
that’s all you may nee d for no w. But a system can also have a variety of additional components.
Some can be for noise suppression, while others may enhance the inverter’s braking perfor­mance. The figure and table below show a system with all the optional components you may
need in your finished application.

Power sourc e

SJ7002 Inverter

2–5

Inverter Mounting

and Installation

Breaker,

MCCB or

GFI

L1 L2 L3

RST

PD(+1)

Inverter

P(+)

R0
T0

UVW

T1 T2 T3

Motor

N(–)

GND

RB

Name Function

Breaker /
disconnect

Input side
AC Reactor

Radio noise filter Electrical noise interference may occur on nearby

EMI filter (for
CE applications,
see Appendix D)

Radio noise filter
(use in non-CE
applications)

DC link choke The choke suppresses harmonics generated by the

Braking resistor Braking components are useful for increasing the
Braking unit

Radio noise filter Electrical noise interference may occur on nearby

Output side
AC reactor

LCR filter Sine wave shaping filter for output side. The LCR

A molded-case circuit breaker (MCCB), ground
fault interrupter breaker (GFI), or a fused disconnect
device. NOTE: The installer must refer to the NEC
and local codes to ensure safety and compliance.

This is useful in suppressing harmonics induced on
the power supply lines, or when the main power
voltage imbalance exceeds 3% (and power source
capacity is more than 500 kVA), or to smooth out
line fluctuations. It also improves the power factor.

equipment such as a radio receiver. This magnetic
choke filter helps reduce radiated noise (can also be
used on output).

This filter reduces the conducted noise in the power
supply wiring between the inverter and the power
distribution system. Connect it to the inverter
primary (input side).

This capacitive filter reduces radiated noise from the
main power wires in the inverter input side.

inverter. However, it will not protect the input diode
bridge rectifier. A DCL reactor is required for
models -185xxx to -4000xxx

inverter’s control torque for high duty-cycle (ON­OFF) applications, and improving the decelerating
capability.

equipment such as a radio receiver. This magnetic
choke filter helps reduce radiated noise (can also be
used at input).

This reactor reduces the vibrations in the motor
caused by the inverter’s switching waveform, by
smoothing the waveform to approximate commer­cial power quality. It is also useful to reduce
harmonics when wiring from the inverter to the
motor is more than 10m in length.

filter is not required for models -1850xxx to ­4000xxx.

Thermal switch

NOTE: Some components are required for regulatory agency compliance (see Chapter 5 and
Appendix D).

2–6

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Step-by-Step Basic Installation

This section will guide you through the following basic steps of installation:

1. Study the warnings associated with mounting the inverter.

2. Transport or lift the inverter (and DC reactor, if used) in a safe manner.

3. Select a suitable mounting location.

NOTE: If the installation is in an EU country, study the EMC installation guidelines in

Appendix D.

4. Cover the inverter’s top ventilation openings to prevent debris from falling inside.

5. Check the inverter mounting dimensions for footprint and mounting hole locations.

6. Study the caution and warning messages associated with wiring the inverter.

Inverter Mounting

and Installation

1

Choosing a
Mounting
Location

7. Connect wiring for the inverter power input.

8. Connect wiring to the motor.

9. Uncover the inverter’s ventilation openings that were covered in Step 3.

10.Perform a powerup test.

11. Make observations and check your installation.

Step 1: Study the following caution messages associated with mounting the inv erter. This is the

time when mistakes are most likely to occur that will result in expensive rework, equipment
damage, or personal injury.

CAUTION: Be sure to install the unit on flame-resistant material such as a steel plate. Other­wise, there is the danger of fire.

CAUTION: Be sure not to place an y flammabl e materials near the in v erter. Otherwise, there is
the danger of fire.

CAUTION: Be sure not to let the foreign matter enter vent openings in the inverter housing,
such as wire clippings, spatter from welding, metal shavings, dust, etc. Otherwise, there is the
danger of fire.

CAUTION: Be sure to install the inverter in a place that can bear the weight according to the
specifications in the text (Chapter 1, Specifications Tables). Otherwise, it may fall and cause
injury to personnel.

CAUTION: Be sure to install the unit on a perpendicular wall that is not subject to vibration.
Otherwise, it may fall and cause injury to personnel.

CAUTION: Be sure not to install or operate an inverter that is damaged or has missing parts.
Otherwise, it may cause injury to personnel.

CAUTION: Be sure to install the inverter in a well-ventilated room that does not have direct
exposure to sunlight, a tendenc y for high tempe rature, high humidity or de w conde nsation, high
levels of dust, corrosive gas, explosive gas, inflammable gas, grinding-fluid mist, salt air, etc.
Otherwise, there is the danger of fire.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

The position and orientation of the inverter a re very important . Install the inverter vertically and
securely with screws or bolts on a surface that is free from vibrations and that can bear the
inverter’s weight. If the inverter is not installed vertically, its cooling performance may be
degraded and trip events or inverter damage may result. If the inverter requires an external DC
reactor, do not install the reactor directly under the inverter.

Air flow

2–7

Inverter Mounting

and Installation

2

Transport or Lift
in Safe Manner

Heated air

Heated air

2 Series inverter models -1850hFx2 to -4000hFx2are very heavy. For example, the

SJ700
315kW inverter weighs about 463 lbs. (210kg). Therefore, be careful when loading and
transporting these inverters. Use the eyebolts on the inverter housing and frame to lift the
inverter. The diagrams below show different lifting configurations to fit the orientations you
may need.

Eyebolts

Eyebolts

Eyebolts

Upright inverter lifting:

Use eyebolts at top of inverter

Horizontal inverter lifting: Use eye-

bolts at front corners of inverter

DC reactor lifting:

Use bolts at top of frame

2–8

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Ensure Adequate
Ventilation

Step 2: To summarize the caution messages—you will need to find a solid, non-flammable,

3

vertical surface that is in a relatively clean and dry environment. In order to ensure enough
room for air circulation around the inverter to aid in cooling, maintain the specified clearance
around the inverter specified in the diagram.

Clear area

10 cm (3.9”) min., models -004 to -550;
30 cm (11.8”) min., models -750 to -4000

Exhaust

and Installation

Inverter Mounting

Keep Debris Out
of Inverter Vents

5 cm (1.97”)

minimum

SJ700

10 cm (3.9”) min., models -004 to -550;
30 cm (11.8”) min., models -750 to -4000;
Clearance to replace DC bus capacitors
with inverter in place:
22 cm (8.7”) min., models -150 to -550,
30 cm (11.8”) min., models -750 to -4000;

CAUTION: Be sure to maintain the specified clearance area around the inverter and to provide
adequate ventilation. Otherwise, the inverter may overheat a nd cau se equ ipmen t dama ge or f ir e.

Step 3: Before proceeding to the wiring section, it’s a

4

good time to temporarily cover the inverter’s ventilation
openings. Paper and masking tape are all that is needed.
This will prevent harmful debris such as wire clippings
and metal shavings from entering the inverter during
installation.

Please observe this checklist while mounting the
inverter:

1. The ambient temperature must be in the range of

-10 to 40°C. If the range will be up to 50°C
(maximum rating), you will need to refer to derate
the output current performance of the inverter.

2. Keep any other heat-producing equipment as far
away from the inverter as possible.

3. When installing the inverter in an enclosure,
maintain the clearance around the in verter and verify
that its ambient temperature is within specification
when the enclosure door is closed.

4. Do not open the main front panel door at any time
during operation.

5 cm (1.97”)

minimum

Air intake

Cover the fan outlet vents

Cover the ventilation slots,

both sides

5

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Check Inverter
Dimensions

SJ7002 Inverter

Step 4: Locate the applicable drawing on the following pages for your inverter.
Dimensions are given in millimeters (inches) format. Smaller models come equipped with
NEMA1 adapter (conduit box) for wire entry for U.S. models (LFU and HFU). The NEMA 1
adapter is optional for larger models as indicated in the drawings.

Model

SJ700

-004LFUF2

-007LFUF2

-007HFUF2/HFEF2

-015LFUF2

-015HFUF2/HFEF2

-022LFUF2

-022HFUF2/HFEF2

-037LFUF2

-040HFUF2/HFEF2

6 (0.24)

150 (5.91)

130 (5.12)

2 - φ 6 (0.24)

241 (9.49)

255 (10.04)

Exhaust

Air intake

2–9

Inverter Mounting

and Installation

Model

SJ700

-055LFUF2

-055HFUF2/HFEF2

-075LFUF2

-075HFUF2/HFEF2

-110LFUF2

-110HFUF2/HFEF2

210 (8.27)
189 (7.44)

7 (0.28)

203 (7.99)

143 (5.63)

140 (5.51)

62 (2.44)

2 - φ 7 (0.28)

246 (9.69)

260 (10.24)

3 places 33 x 28 (1.30 x 1.10 )

170 (6.69)

82 (3.23)

Exhaust

Air intake

13.6 (0.54)

NOTE: Be sure to use lock washers or other means to ensure screws do not loosen
due to vibration.

2–10

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Dimensional drawings, continued...

Inverter Mounting

and Installation

SJ700

Model

-150LFUF2

-150HFUF2/HFEF2

-185LFU2

-285HFU2/HFE2

-220LFU2

-220HFU2/HFE2

250 (9.84)

229 (30.78)

7 (0.28)

244 (9.60)

2 - φ 7 (0.28)

376 (14.8)

390 (15.35)

3 places 42 x 42.5

(1.65 x 1.67 )

190 (7.48)

Exhaust

Air intake

SJ700

Model

-300LFU2

-300HFU2/HFE2

2 - 10 (0.39)

265 (10.43)
310 (12.20)

83 (3.27)

9.5 (0.37)

2 - φ 10 (0.39)

540 (21.26)

510 (20.08)

5 places φ 25 (0.98)

Exhaust

Air intake

195 (7.68)

Dimensional drawings, continued...

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Model

SJ700

-370LFU2

-370HFU2/HFE2

-450LFU2

-450HFU2/HFE2

-550HFU2/HFE2

2 - 12 (0.47)

300 (11.81)
390 (15.35)

2 - φ 12 (0.47)

550 (21.65)

520 (20.47)

5 places φ 41 (1.61)

SJ7002 Inverter

Exhaust

Air intake

2–11

and Installation

Inverter Mounting

Model

SJ700 -550LFU2

2 - φ 12 (0.47)

380 (14.96)
480 (18.90)

250 (9.84)

2 - φ 12 (0.47)

670 (26.38)

700 (27.56)

5 places φ 41 (1.61)

Exhaust

Air intake

248 (9.76)

2–12

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Step-by-Step Basic Installation

Dimensional drawings, continued...

Model

SJ700

-750HFU2/HFE2

-900HFU2/HFE2

390 (15.35)

300 (11.81)

2 - 12 (0.47)

2 - φ 12 (0.47)

670 (26.38)

700 (27.56)

Exhaust

Air intake

SJ700

Model

-1100HFU2/HFE2

-1320HFE2

-1500HFU2

480 (18.90)

380 (14.96)

2 -12 (0.47)

270 (10.63)

2 - φ 12 (0.47)

710 (27.95)

740 (29.13)

Exhaust

Air intake

270 (10.63)

Dimensional drawings, continued...

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3 - φ 15 (0.59)

SJ7002 Inverter

2–13

Inverter model

-1850HFU2/HFE2

SJ700

290 (11.41)

15 (0.59)

57.5 (2.26)

695 (27.36)

290 (11.41)

57.5 (2.26)

2 - M12 Eyebolts

15 (0.59)

965 (37.99)

15

(0.59)

995 (39.17)

370 (14.56)

Exhaust

Air intake

4 - M12 Threaded holes for eyebolts

Inverter Mounting

and Installation

DC reactor model
DCL-H-185

For M16

200 (7.87)

300 (11.81)

270 (10.62) max.

PPD

NP

170 (6.69)

200 (7.87)

4 - 11x18 (0.43x0.70)
M6 Grounding terminal

240 (9.44) max.

500 (19.68) max.

2–14

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Dimensional drawings, continued...

NOTE: The following crimp terminals are included with UL Listed inverter models
SJ700-1850HFU2/HFE2.

Inverter Mounting

and Installation

Model
R38 - 8

Model
R38 - 8

Terminal

Type

R38–8 R26, 66–42, 42 M8

38–16 R26, 66–42, 42 M16

R150–16 117, 2–152, 05 M16

φ 8.4 (0.33)

Corresponding

StrandedWire Size, (mm

42.7 (1.68)

Corresponding

2

)

Screw Size

Model
R38 - 16

22

(0.87)

17.7 (0.70)

t1.8

φ 17 (0.67)

36

(1.42)

(0.07)

14

(0.55)

68 (2.68)

φ 9.4 (0.37)

φ 13.3 (0.52)

φ 17 (0.67)

30

(1.18)

23.5 (0.93)

t1.8

52.5 (2.07)

14

(0.55)

(0.07)

t3.2

(0.13)

23

(0.90)27(1.06)

φ 26.5 (1.04)

φ 19.5 (0.77)

Dimensional drawings, continued...

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3 - φ 15 (0.59)

SJ7002 Inverter

2–15

Inverter model

-3150HFU2/HFE2

SJ700

290 (11.41)

15 (0.59)

15 (0.59)

50 (1.96)

680 (26.77)

290 (11.41)

50 (1.96)

2 - M12 Eyebolts

15 (0.59)

1270 (50.0)

1300 (51.18)

15

(0.59)

2 - M12 Threaded holes

4 - M12 Threaded holes for eyebolts

450 (17.71)

Exhaust

Air intake

Inverter Mounting

and Installation

DC reactor model
DCL-H-315

325 (12.79)
285 (11.22)

NP

100 (3.93)100 (3.93)

50

(1.96)50(1.96)

PPD

4 - φ 10 (0.39)

285 (11.22)

325 (12.79)

M10 Grounding terminal

2x2 - φ 14 (0.55)

36 (1.41)

M10 Grounding terminal

6 (0.23)

393 (15.47)

430 (16.92) max.

2 - M10 Eyebolts

41.5

294 (11.57)

(1.63)

2–16

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Step-by-Step Basic Installation

Dimensional drawings, continued...

Inverter model

-4000HFU2/HFE2

SJ700

300 (11.81)

1050 (41.33)

300 (11.81)

300 (11.81)

4 - φ 15 (0.59)

2 - M16 Eyebolts

15 (0.59)

1670 (65.74)

1700 (66.92)

2 - M16

Threaded holes

450 (17.71)

Exhaust

75 (2.95)

DC reactor model
DCL-H-400

15 (0.59)

325 (12.79)

285 (11.22)

NP

100 (3.93)100 (3.93)

50

(1.96)50(1.96)

PPD

4 - φ 10 (0.39)

325 (12.79)

285 (11.22)

M10 Grounding terminal

2x2 - φ 14 (0.55)

36 (1.41)

15 (0.59)

6 (0.23)

430 (16.92)

15

(0.59)

75 (2.95)

4 - M16 Threaded holes for eyebolts

2 - M8 Eyebolts

41.5

331 (13.03)

Air intake

(1.63)

450 (17.71) max.

6

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Prepare for
Wiring

SJ7002 Inverter

Step 5: The wiring enters the inverter through an entry/exit plate. For plastic plates, remov e the
knockout portions of the pl ate. F or metal pla tes with rubber grommets, cu t an “X” in the ce nter
of the grommet as shown. Be especi ally careful t o a void cutting into the thick outer ring, so that
the wiring will have a cushion from contacting the metal plate.

Knockout area for logic/signal wiring

Cut grommet(s) for use as shownKnockout areas for power wiring

NOTE: Some in ve rter models will ha v e a wi ring box for NEMA rating c ompliance . Make sure
the wire entry to the NEMA box also has protective cushion from chaffing of insulation.

Before proceeding, please study the caution and warning messages below.

2–17

Inverter Mounting

and Installation

WARNING: Use 75°C Cu wire only or equivalent.

WARNING: Open Type Equipment. For models SJ700–750H to SJ700–4000H.

WARNING: A Class 2 circuit wired with Class 1 wire or equivalent.

WARNING: Suitable for use on a circuit capable of delivering not more than 100,000 rms

symmetrical amperes, 240 V maximum. For models with suffix L.

WARNING: Suitable for use on a circuit capable of delivering not more than 100,000 rms
symmetrical amperes, 480 V maximum. For models with suffix H.

HIGH VOLTAGE: Be sure to ground the unit. Otherwise, there is a danger of electric shock
and/or fire.

HIGH VOLTAGE: Wiring work shall be carried out only by qualified personnel. Otherwise,
there is a danger of electric shock and/or fire.

HIGH VOLTAGE: Implement wiring after checking that the power supply is OFF. Otherwise,
you may incur electric shock and/or fire.

HIGH VOLTAGE: Do not connect wiring to an inverter or operate an inverter that is not
mounted according the instructions given in this manual. Otherwise, there is a danger of elec­tric shock and/or injury to personnel.

2–18

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Determining Wire and Fuse Sizes

and Installation

Inverter Mounting

This section includes tables for 200V class and 400V class inverters (on the next page). The
following notes will help you read the tables in this section:

• Locate the row corresponding to the motor size and particular inverter in your application.

The maximum motor current determines the recommended wire sizes.

• The length column specifies that some inverters can optionally use a smaller wire gauge if

the wires are shorter than 10m and the inverter is located in an enclosure.

• Power Lines columns include wires connecting to terminals [R, S, T, U, V, W, P , PD, and N].

Only power input and motor leads will be fused: [R, S, T, U, V, and W]. The breaker ratings
(GFI—ground fault interrupter) are slightly higher than fuse ratings to allow for nominal
surges without tripping.

• The chassis ground columns list the Hitachi-recommended AWG and the minimal AWG for

UL conformity.

• The optional external braking resistor wiring only applies to a few models that have a built-

in braking unit. The other models use an optional external braking unit.

• Parallel wires increase effective wire gauge, and are denoted by “||” in the tables.

• Signal Lines, not listed in these tables, connect to the removable logic connector. The recom-

mended wire gauge for all wiring to the logic connector is 28 AWG (0.75 mm
use shielded wire for any analog signals.

Motor

Output

200V

Inverter

HP kW AWG

Models

2

). Be sure to

Wirin g *1

Power Lines *3 Chassis Ground Brake Res.

Fuse

Breaker

(GFI

type) *2

AWG,

rec.

AWG,

UL

mm

2

AWG

mm

mm

(UL-

2

rated,

class J,

600V)

2

0.5 0.4 SJ700–004LFUF2 20 1.25 10A 10A 20 20 1.25 20 1.25
1 0.75 SJ700–007LFUF2 18 1.25 10A 10A 20 20 1.25 20 1.25
2 1.5 SJ700–015LFUF2 14 2 10A 1 0A 14 14 2 14 2
3 2.2 SJ700–022LFUF2 14 2 15A 1 5A 14 14 2 14 2
5 3.7 SJ700–037LFUF2 10 3.5 20A 20A 10 10 3.5 10 3.5

7.5 5.5 SJ700–055LFUF2 8 5.5 30A 30A 8 10 5.5 8 5.5

10 7.5 SJ700–075LFUF2 6 8 40A 40A 8 10 8 6 8
15 11 SJ700–110LFUF2 4 14 60A 60A 4 10 14 10 14
20 15 SJ700–150LFUF2 2 22 80A 80A 3 8 22 8 22
25 18.5 SJ700–185LFU2 1 30 100A 100A 3 8 22 8 30
30 22 SJ700–220LFU2 1 38 125A 125A 2 8 30 6 38
40 30 SJ700–300LFU2 2/0 60 or

22 || 22

50 37 SJ700–370LFU2 4/0 100 or

38 || 38

60 45 SJ700–450LFU2 4/0 100 or

38 || 38

75 55 SJ700–550LFU2 2/0 || 2/0 150 or

60 || 60

150A 150A 2 6 30 — —

175A 175A 1/0 6 38 — —

225A 225A 3/0 6 38 — —

250A 250A 3/0 4 60 — —

* See notes for wiring tables on the following page.

Determining wire and fuse sizes, continued...

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

SJ7002 Inverter

2–19

Motor

Output

400V

Inverter Models

HP kW

0.5 0.75 SJ700–007HFUF2/E 20 1.25 10A 10A 20 20 1.25 20 1.25
1 1.5 SJ700–015HFUF2/E 18 2 10A 10A 18 18 2 18 2
2 2.2 SJ700–022HFUF2/E 16 2 10A 10A 18 18 2 18 2
3 4.0 SJ700–040HFUF2/E 14 2 15A 15A 18 18 2 18 2

7.5 5.5 SJ700–055HFUF2/E 12 3.5 *5 15A 15A 10 12 3.3 *510 3.5

10 7.5 SJ700–075HFUF2/E 10 3.5 20A 20A 10 12 3.5 10 3.5
15 11 SJ700–110HFUF2/E 8 5.5 30A 30A 8 10 5.5 8 5.5
20 15 SJ700–150HFUF2/E 6 8 40A 40A 8 10 8 10 8
25 18.5 SJ700–185HFU2/E 6 14 50A 50A 4 10 14 10 14
30 22 SJ700–220HFU2/E 4 14 60A 60A 4 10 14 10 14
40 30 SJ700–300HFU2/E 3 22 70A 70A 3 10 22 — —
50 37 SJ700–370HFU2/E 1 38 90A 90A 3 8 38 — —
60 45 SJ700–450HFU2/E 1 || 1 *6 38 125A 125A 1 8 38 — —
75 55 SJ700–550HFU2/E 2/0 60 125A 125A 1 6 60 — —

100 75 SJ700–750HFU2/E 1 || 1 *6 100 or

125 90 SJ700–900HFU2/E 1 || 1 *6 100 or

150 110 SJ700–1100HFU2/E 1/0 || 1/0 150 or

150 132 SJ700–1320HFE2,

SJ700–1500HFU2

250 185 SJ700–1850HFU2/E 300 ||

400 315 SJ700–3150HFU2/E 500 ||

500 400 SJ700–4000HFU2/E 800 ||

AWG/
kcmil

3/0 || 3|0 80 || 80 300A 300A 3/0 3/0 80 — —

300

500

800

Power Lines *3 Chassis Ground Brake Res.

Fuse
(UL-

2

mm

38 || 38

38 || 38

60 || 60

152 ||

152

253 ||

253

405 ||

405

rated,

class J,

600V)

175A 175A 3 8 38 — —

200A 200A 3 8 38 — —

250A 250A 1 6 60 — —

400A 400A 250 250 127 — —

700A 700A 400 400 203 — —

1000A 1000A 600 600 304 — —

Wiring *1

Breaker

( GFI

type) *2

AWG/
kcmil,

rec.

AWG/
kcmil,

UL

mm

2

AWG

mm

*5

2

Inverter Mounting

and Installation

Note 1: Field wiring must be made by a UL-listed and CSA certified ring lug terminal

connector sized for the wire gauge involved. The connector must be fixed by using
the crimping tool specified by the connector manufacturer.

Note 2: Be sure to consider the capacity of the circuit breaker to be used.
Note 3: Be sure to use a larger wire gauge if power line length exceeds 66 ft (20m).
Note 4: Prepackaged (included) square washer is to be used when the bare wire is directly

connected to terminal without using crimp contact (such as ring lug connector).

Note 5: When replacing J300-055HF or SJ300-055HFF2 inverter with SJ700-055HFF2,

you may use power wiring size 2mm

2

.

Note 6: Wire must be rated for operation up to 75°C.

2–20

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Terminal Dimensions and Torque Specs

and Installation

Inverter Mounting

The following tables list the screw size of terminal and recommended torque for tightening for
each of the SJ700

2 inverter models (400V models are on the next page).

CAUTION: Fasten the screws with the specified fastening torque in the table below. Check for
any loosening of screws. Otherwise, there is the danger of fire.

200V Class Inverters

Motor

Output

HP kW AWG-bolt

0.5 0.4 SJ700–004LFUF2 20–#10 M4 1.25–4 0.9 1.2
1 0.75 SJ700–007LFUF2 20–#10 M4 1.25–4 0.9 1.2
2 1.5 SJ700–015LFUF2 20–#10 M4 2–4 0.9 1.2
3 2.2 SJ700–022LFUF2 20–#10 M4 2–4 0.9 1.2
5 3.7 SJ700–037LFUF2 20–#10 M4 3.5–4 0.9 1.2

7.5 5.5 SJ700-055LFUF2 8–#12 M5 R5.5–5 1.8 2.4

10 7.5 SJ700-075LFUF2 8–#12 M5 R8–5 1.8 2.4
15 11 SJ700-110LFUF2 4–1/4 M6 R14–6 3.0 4.0
20 15 SJ700-150LFUF2 2–1/4 M6 22–6 3.3 4.5
25 18.5 SJ700-185LFU2 1–1/4 M6 30–S6 3.3 4.5
30 22 SJ700-220LFU2 1/0–5/16 M8 38–8 6.0 8.1
40 30 SJ700-300LFU2 2–5/16 M8 60–8 6.0 8.1
50 37 SJ700-370LFU2 1–5/16 M8 *2 100–8 6.0 8 .1
60 45 SJ700-450LFU2 1–5/16 M8 *2 100–8 6.0 8 .1
75 55 SJ700-550LFU2 2/0–1/2 M10 150–10 14.5 19.6

Inverter Model

Screw size of terminal

Metric

Ring lug

connector *1

Torque

ft-lbs N-m

Note 1: The recommended ring lug connector listing consists of wire size – screw size

format. The wire sizes are in AWG or mm

2

format. For AWG wire sizes, bolt sizes
for the ring lug centers are: #10, #12, 1/4”, 5/16”, and 1/2”. For metric wire sizes,
bolt sizes for the ring lug centers are: 6 = 6M, 8 = 8M, 10 = 10M.

Note 2: Prepackaged square washer is to be used when the bare wire is directly connected to

terminal without using crimp contact (such as ring lug connector).

Note 3: [N] terminal for braking unit is common to [N] terminal of power lines.

TIP: AWG = American Wire Gauge. Smaller numbers represent increasing wire thickness.
kcmil = 1,000 circular mils, a measure of wire cross-sectional area
mm2 = square millimeters, a measure of wire cross-sectional area

Terminal dimensions and torque specs, continued...

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

400V Class Inverters

SJ7002 Inverter

2–21

Motor

Output

HP kW (AWG-bolt)

0.5 0.75 SJ700–007HFUF2/E (All) 20–#10 M4 1.25–4 0.9 1.2
1 1.5 SJ700–015HFUF2/E (All) 20–#10 M4 1.25–4 0.9 1.2
2 2.2 SJ700–022HFUF2/E (All) 20–#10 M4 1.25–4 0.9 1.2
3 4.0 SJ700–040HFUF2/E (All) 20–#10 M4 1.25–4 0.9 1.2

7.5 5.5 SJ700-055HFUF2 (All) 8–#12 M5 5.5–5 1.8 2.4

10 7.5 SJ700-075HFUF2 (All) 8–#12 M5 8–5 1.8 2.4
15 11 SJ700-110HFUF2 (All) 4–1/4 M6 14–6 3.0 4.0
20 15 SJ700-150HFUF2/E (All) 6–1/4 M6 8–6 3.3 4.5
25 18.5 SJ700-185HFU2/E (All) 4–1/4 M6 14–6 3.3 4.5
30 22 SJ700-220HFU2/E (All) 4–1/4 M6 14–6 3.3 4.5
40 30 SJ700-300HFU2/E (All) 2–1/4 M6 22–6 3.3 4.5
50 37 SJ700-3 70HFU2/E (All) 1/0–5/16 M8 *2 38–8 6 .0 8.1
60 45 SJ700-4 50HFU2/E (All) 1/0–5/16 M8 *2 38–8 6 .0 8.1

75 55 SJ700-5 50HFU2/E (All) 2–5/16 M8 *2 60–8 6.0 8.1
100 75 SJ700–750HFU2/E (All) 1/0–1/2 M10 100–10 14.8 20.0
125 90 SJ700–900HFU2/E (All) 1/0–1/2 M10 100–10 14.8 20.0
150 110 SJ700–1100HFU2/E (All) 2/0–1/2 M10 150–10 14.8 20.0
150 132 SJ700–1320HFE2,

250 185

400 315 SJ700–3150HFU2/E

500 400 SJ700–4000HFU2/E

Inverter Model

SJ700–1320HFU2

SJ700–1850HFU2/E

*3

Power
connector
terminals

(All) 2/0–1/2 M10 150–10 14.8 20.0

R, S, T, U, V, W

P, PD, N

R, S, T, U, V, W

P, PD, N

R, S, T, U, V, W

P, PD, N

Screw size of terminal

2

127 mm
152 mm
203 mm
253 mm
304 mm
405 mm

x 2

2

x 2

2

x 2

2

x 2

2

x 2

2

x 2

Ring lug

Metric

connector *1

M16 R150–16 55.3 75.0
M16 R150–16 55.3 75.0
M16 200–16 32.5 44.0
M16 325–16 55.3 75.0
M12 325–12 32.5 44.0
M12 *4 38.4 52.0

ft-lbs N-m

Torque

Inverter Mounting

and Installation

Note 1: The recommended ring lug connector listing consists of wire size – screw size

format. The wire sizes are in AWG or mm

2

format. For AWG wire sizes, bolt sizes
for the ring lug centers are: #10, #12, 1/4”, 5/16”, and 1/2”. For metric wire sizes,
bolt sizes for the ring lug centers are: 6 = 6M, 8 = 8M, 10 = 10M.

Note 2: Prepackaged (included) square washer is to be used when the bare wire is directly

connected to terminal without using crimp contact (such as ring lug connector).

Note 3: For 1850HF model, use wires with the prepackaged (included) ring lug terminals

when connecting the wires to the main circuit terminals.

Note 4: [N] terminal for braking unit is common to [N] terminal of power lines.

2–22

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Wire the Inverter
Input to a Supply

and Installation

Inverter Mounting

Step-by-Step Basic Installation

Step 6: In this step, you will connect wiring to the

7

input of the inverter. All models have the same
power connector terminals [R(L1)], [S(L2)], and
[T(L3)] for three-phase input. The three phases
may be connected in any order, as they are isolated
from chassis ground and do not determine motor
direction of rotation. Please refer to the specifica-

tions label (on the front or side of the inverter)
for the acceptable input voltage ranges!

NOTE: The wiring example to the right shows
an SJ700-110LFU2 inverter. The terminal
locations will vary, depending on the inverter
model (see below). Note the use of ring lug
connectors for a secure connection.

Use the terminal arrangement below corresponding
to your inverter model.

NOTE: Be sure that the power is OFF before changing the jumper settings for [P]/[PD] or for
the EMC filter selection.

Inverter models: –004 to –037LFUF2, –007 to –037HFUF2/HFEF2

R

R0

T0

PD

Jumper

Cover plug

NOTE: For -055xxx and -075xxx (5.5–7.5kW) inverter models: The washer on the main
terminal screw (R, S, T, PD, P , N, U, V, W, RB) has two cutouts. To prevent the cable clamping
portion of crimp terminal from going under the washer, align the cutouts with the cable as
shown below. Otherwise, you run the risk of a loose connection and fire.

S

(L1)

(L2)T(L3)

P

(+1)

(+)N(–) (G)(G)

EMC filter selection

Enable (default for xFEF2)

plug

Disable (default for xFUF2)

(green)

RB

(RB)

Jumper bar

Cover plug

U

(T1)

(green)

Jumper

(T2)

plug

V

W

(T3)

J61J62

Washer under terminal screw

(Terminal diagrams, continued....)

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Inverter models: –055 to –110LFUF2, –055 to –110HFUF2/HFEF2

EMC filter selection

Enable

Disable

(default)

Inverter models: –150LFUF2 to 220LFU2, –150HFUF2 to –220HFU2/HFE2

EMC filter selection

R

S

(L1)

(L2)T(L3)PD(+1)

R

S

(L1)

(L2)T(L3)PD(+1)

P

(+)N(–)

P

(+)N(–)

SJ7002 Inverter

R0

T0

U

(T1)

Jumper bar

R0

T0

U

(T1)

V

(T2)

V

(T2)

RB

(RB)

RB

(RB)

W

(T3)

(G)(G)

W

(T3)

2–23

and Installation

Inverter Mounting

Enable Disable

Inverter models: –300 to –370LFU2,
–300 to –550HFU2/HFE2

EMC filter selection

Enable

Inverter models: –450LFU2

R

(L1)

Disable

(default)

S

(L2)T(L3)PD(+1)P(+)N(–)

(default)

Jumper

(L1)

R0 T0

bar

R

U

(T1)

(L2)T(L3)PD(+1)P(+)N(–) (G)(G)

S

V

(T2)

W

(T3)

(G)(G)

(G)

R0 T0

Jumper

bar

Enable

Jumper

bar

V

U

(T1)

EMC filter selection

(T2)

W

(T3)

Disable

(default)

(G)(G)

Inverter models: –550LFU2

R

S

(L1)

(L2)T(L3)PD(+1)P(+)N(–)

R0 T0

Jumper

bar

U

(T1)

V

(T2)

(G)

W

(T3)

(G)(G)

EMC filter selection

Enable

Disable

(default)

2–24

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step-by-Step Basic Installation

Inverter Mounting

and Installation

Inverter model: –750 to 1500HFU2

R

S

(L1)

(L2)T(L3)PD(+1)P(+)N(–)

Inverter model: –1850HFU2, HFE2

R0 T0

R

S

(L1)

(L2)T(L3)PD(+1)P(+)N(–) (G)(G)

Jumper

bar

Inverter model: –3150HFU2, HFE2

R0 T0

P

(+)

P

(+)

Jumper

bar

U

(T1)

U

(T1)

V

(T2)

V

(T2)

W

(T3)

R0 T0

W

(T3)

(G)(G)

Internal

EMC Filter

Status

S

R

(L2)

(L1)

Inverter model: –4000HFU2, HFE2

R0 T0

R

S

(L1)

(L2)T(L3)PD(+1)P(+)N(–) (G)(G)

The table below lists the nominal current that may leak from only the inverter when the internal
EMC filter is enabled or disabled. Leakage current is in proportion to input power voltage and
frequency. The values do not exclude current leakage from external devices and equipment
(e.g., power cables). Inverter models from 75 kW to 132 kW does not have a switch to enable/
disable the internal EMC filter. This complies EMC directive C3 level in standard condition.

Units

kW 0.4 – 3.7 5.5 – 11 15–37 45–55 .75–3.7 5.5–11 15–37 45–55 75–132

200V Class Inverters

(Input voltage = 200VAC, 50 Hz)

T

(L3)

PD

(+1)

P

(+)

P

(+)

N

(–)

(T1)

(T1)

Jumper

bar

(Input voltage = 400VAC, 50 Hz)

V

U

U

400V Class Inverters

(T2)

V

(T2)

W

(T3)

W

(T3)

(G)(G)

Disabled ~mA 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 0.2

Enabled~mA2.5482323 5 955656—

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2–25

NOTE: An inv erter powered by a portable or emer gency diesel power generator may result in a
distorted power waveform, overheating the generator. In general, the generator capacity should
be at least five times that of the inverter (kVA).

CAUTION: Be sure that the input voltage matches the inverter specifications:

• Three phase 200 to 240V 50/60Hz

• Three phase 380 to 480V 50/60Hz

CAUTION: Be sure not to power a three-phase-only inverter with single phase power. Other­wise, there is the possibility of damage to the inverter and the danger of fire.

CAUTION: Be sure not to connect an AC power supply to the output terminals. Otherwise,
there is the possibility of damage to the inverter and the danger of injury and/or fire.

Inverter Mounting

and Installation

Power Input

L2

L1 L3

RST

Power Output

T1 T2 T3

UVW

NOTE:

L1, L2, L3:

Three-phase 200 to 240V 50/60 Hz
Three-phase 380 to 480V 50/60 Hz

CAUTION: Remarks for using ground fault interrupter breakers in the main power supply:
Adjustable frequency inverters with CE-filters (RFI-filter) and shielded (screened) motor
cables have a higher leakage current tow ard Earth GND. Especially at the moment of switching
ON this can cause an inadvertent trip of ground fault interrupter breakers. Because of the recti­fier on the input side of the inverter there is the possibility to stall the switch-off function
through small amounts of DC current. Please observe the following:

• Use only short time-invariant and pulse current-sensitive ground fault interrupter
breakers with higher trigger current.

• Other components should be secured with separate ground fault interrupter breakers.

• Ground fault interrupter breakers in the power input wiring of an inverter are not an

absolute protection against electric shock.

CAUTION: Be sure to install a fuse in each phase of the main power supply to the inverter.
Otherwise, there is the danger of fire.

CAUTION: For motor leads, ground fault interrupter breakers and electromagnetic contac­tors, be sure to size these components properly (each must have the capacity for rated current
and voltage). Otherwise, there is the danger of fire.

2–26

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Wire the Inverter
Output to Motor

and Installation

Inverter Mounting

Step-by-Step Basic Installation

Step 7: The process of motor selection is beyond the scope of this manual. Howe v er, it must be

8

a three-phase AC induction motor. It should also come with a chassis ground lug. If the motor
does not have three power input leads, stop the installation and verify the motor type. Other
guidelines for wiring the motor include:

• Use an inverter-grade motor for maximum motor life (1600V insulation).

• For standard motors, use an output filter if the wiring between the inverter and motor
exceeds 10 meters in length.

Simply connect the motor to the terminals
[U/T1], [V/T2], and [W/T3] indicated on the
inverter to the right. This is a good time to
connect the chassis ground lug on the drive as
well. The motor chassis ground must also
connect to the same point. Use a star ground
(single-point) arrangement, and never daisy­chain the grounds (point-to-point).

Inverter

Inverter

Inverter

Logic Control Wiring

9

Uncover the
Inverter Vents

Inverter

Inverter

Inverter

Use the same wire gauge on the motor and
chassis ground wiring as you used on the
power input wiring in the previous step. After
completing the wiring:

• Check the mechanical integrity of each wire crimp and terminal connection.

• Replace the front panel and secure the retention screw firmly.

After completing the initial installation and powerup test in this chapter, you may need to wire
the logic signal connector for your application. For new inverter users/applications, we highly
recommend that you first complete the powerup test in this chapter without adding any logic
control wiring. Then you will be ready to set the required parameters for logic control as
covered in Chapter 4, Operations and Monitoring.

Step 8: After mounting and wiring the inverter,
remove any protective material covering the
inverter ventilation openings from Step 3. This
includes covers over the side ventilation ports as
well as the fan outlet area.

User

grounding

bolt

To power

source

Uncover the fan outlet vents

ground

To motorTo chassis

CAUTION: Failure to remove all vent opening
covers before electrical operation may result in
damage to the inverter.

Uncover the ventilation slots, both sides

Powerup Test

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Step 9: After wiring the inverter and motor, you’re ready to do a powerup test. The procedure

10

Perform the
Powerup Test

that follows is designed for the firs t-time use of the driv e. Please verify the following conditions
before conducting the powerup test:

• You have followed all the steps in this chapter up to this step.

• The inverter is new, and is securely mounted to a non-flammable vertical surface

• The inverter is connected to a power source and motor.

• No additional wiring of inverter connectors or terminals has been done.

• The power supply is reliable, and the motor is a known working unit, and the motor
nameplate ratings match the inverter ratings.

• The motor is securely mounted, and is not connected to any load.

SJ7002 Inverter

2–27

and Installation

Inverter Mounting

Goals for the Powerup Test

Pre-test and Operational Precautions

If there are any exceptions to the abo v e conditions at this ste p, please tak e a moment to take a ny
measures necessary to reach this basic starting point. The specific goals of this powerup test
are:

1. Verify that the wiring to the power supply and motor is correct.

2. Demonstrate that the inverter and motor are generally compatible.

3. Give a brief introduction to the use of the built-in operator keypad.

The powerup test gives you an important starting point to ensure a safe and successful applica­tion of the Hitachi inv erter. We highly rec ommend performing this test before proceeding to the
other chapters in this manual.

The following instructions apply to the powerup test, or to any time the inverter is powered and
operating. Please study the following instructions and messages before proceeding with the
powerup test.

1. The power supply must have fusing suitable for the load. Check the fuse size chart

presented in Step 5, if necessary.

2. Be sure you have access to a disconnect switch for the drive input power if necessary.

However, do not turn OFF power to the inverter during its operation unless it is an
emergency.

3. Turn the inverter’s front panel potentiometer (if it exists) to the MIN position (fully counter-

clockwise).

CAUTION: The heat sink fins will have a high temperature. Be careful not to touch them.
Otherwise, there is the danger of getting burned.

CAUTION: The operation of the inv erter ca n be easily changed from lo w speed to high speed.
Be sure to check the capability and limitations of the motor and machine before operating the
inverter. Otherwise, there is the danger of injury.

2–28

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Powering the Inverter

Powerup Test

CAUTION: If you operate a motor at a frequency higher than the inverter standard default
setting (50Hz/60Hz), be sure to check the motor and machine specifications with the respective
manufacturer. Only operate the motor at elevated frequencies after getting their approval.
Otherwise, there is the danger of equipment damage and/or injury to personnel.

CAUTION: Check the following before and during the powerup test. Otherwise, there is the
danger of equipment damage.

• Is the shorting bar between the [P] and [PD] terminals installed? DO NOT power or
operate the inverter if the jumper is removed.

• Is the direction of the motor rotation correct?

• Did the inverter trip during acceleration or deceleration?

• Were the rpm and frequency meter readings as expected?

• Were there any abnormal motor vibrations or noise?

If you have followed all the steps, cautions and warnings up to this point, you’re ready to apply
power. After doing so, the following events should occur:

•The POWER LED will illuminate.

• The numeric (7-segment) LEDs will display a test pattern, then stop at

•The Hz LED will be ON.

0.0.

If the motor starts running unexpectedly or any other problem occurs, press the STOP key. Only
if necessary should you remove power to the inverter as a remedy.

NOTE: If the inv erter has been previously powered and programmed, the LEDs (other than the
POWER LED) may illuminate differently than as indicated above. If necessary, you can initial­ize all parameters to the factory default settings. See “

page 6–16.

Restoring Factory Default Settings” on

Using the Front Panel Keypad

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

SJ7002 Inverter

2–29

Front Panel Introduction

Parameter Editing and Controls

Please take a moment to familiarize yourself with the keypad layout shown in the figure below.

Power LED

Alarm LED
Display Units LEDs

Hertz
Volts or Amperes
(kW = both ON)
Percent

Potentiometer Enable LED
Potentiometer

Run/Stop LED

Program/Monitor LED

Run Key Enable LED

Run Key

Parameter Display

HITACHI

RUN

PRG

RUN

FUNC.

60.0

STOP

RESET

1

Stop/Reset Key

MIN MAX

2

POWER

ALARM

HZ
V

A

%

STR

kW

The display is used in programming the inverter’s parameters, as well as monitoring specific
parameter values during operation. Many functions are applicable only during the initial instal­lation, while others are more useful for maintenance or monitoring.

The front panel controls and indicators are described as follows:

• Run/Stop LED – ON when the inverter output is ON and the motor is developing torque,

and OFF when the inverter output is OFF (Stop Mode).

• Program/Monitor LED – This LED is ON when the inverter is ready for parameter editing

(Program Mode). It is normally OFF when the parameter display is monitoring data
(Monitor Mode). However, the PRG LED will be ON whenever you are monitoring the
value of parameter D001. (When the keypad is enabled as the frequency source via
A001=02, you can edit the inverter frequency directly from D001 monitor display by using
the Up/Down keys.)

• Run Key Enable LED – is ON when the inverter is ready to respond to the Run key, OFF

when the Run key is disabled.

• Run Key – Press this key to run the motor (the Run Enable LED must be ON first). Parame-

ter F004, Keypad Run Key Routing, determines whether the Run key generates a Run FWD
or Run REV command.

• Stop/Reset Key – Press this key to stop the motor when it is running (uses the programmed

deceleration rate). This key will also reset an alarm that has tripped.

• Potentiometer (OPE–SRE only) – allows an operator to directly set the motor speed when

the potentiometer is enabled for output frequency control.

• Potentiometer Enable LED – ON when the potentiometer is enabled for value entry.

(OPE–SRE only).

• Parameter Display – a 4-digit, 7-segment display for parameters and function codes.

• Display Units: Hertz/Volts/Amperes/kW/% – These LEDs indicate the units associated

with the parameter display. When the display is monitoring a parameter, the appropriate
LED is ON. In the case of kW units, both Volts and Amperes LEDs will be ON. An easy
way to remember this is that kW = (V x A)/1000.

• Power LED – This LED is ON when the power input to the inverter is ON.

• Alarm LED – This LED is ON when an alarm condition has tripped the inverter. Clearing

the alarm will turn this LED OFF again. See Chapter 6 for details on clearing alarms.

Inverter Mounting

and Installation

2–30

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Keys, Modes, and Parameters

Using the Front Panel Keypad

• Function Key – This key is used to navigate

through the lists of parameters and functions
for setting and monitoring parameter values.

• Up/Down ( , ) Keys – Use these

keys alternately to move up or down the lists
of parameter and functions shown in the
display, and increment/decrement values.

• Store ( ) Key – When the unit is in

STR

Program Mode and the operator has edited a
parameter value, press the Store key to write
the new value to the EEPROM. This param­eter is then displayed at powerup by default.
If you want to change the powerup default,
navigate to a new parameter value and press
the Store key.

Purpose of the keypad is to provide a way to change modes and parameters. The term function
applies to both monitoring modes and parameters. These are all accessible through function
codes that are primarily 3 or 4-character codes. The various functions are separated into related
groups identifiable by the left-most character, as the table shows.

MIN MAX

2

POWER

ALARM

HZ
V

A

%

STR

Store

kW

key

2

HITACHI

1

RUN

PRG

FUNC.

Function

key

RUN

60.0

STOP

RESET

1

Up/Down

keys

Function

Group

Type (Category) of Function Mode to Access

“D” Monitoring functions Monitor

PGM LED

Indicator

or

“F” Main profile parameters Program

“A” Standard functions Program
“B” Fine tuning functions Program
“C” Intelligent terminal functions Program
“H” Motor constant functions Program

“P” Expansion card functions Program
“U” User-selectable menu functions Monitor

“E” Error codes — —

For example, function “A004” is the base frequency setting for the motor, typically 50 Hz or
60 Hz. To edit the parameter, the inverter must be in Program Mode (PGM LED will be ON).
You use the front panel keys to first select the function code “A004. ” After displaying the value
for “A004,” use the Up/Down ( or ) keys to edit the value.

2

1

NOTE: The in verter 7-segment display sho ws lo wer case “b” and “d”, meaning the same as the
upper case letters “B” and “D” used in this manual (for uniformity “A to F”).

The inverter automat ically switches into Monitor
Mode when you access “D” Group functions. It
switches into Program Mode when you access
any other group, because they all have editable
parameters. Error codes use the “E” Group, and
appear automatically when a fault event occurs.
Refer to “

Monitoring Trip Events, History, &

Conditions” on page 6–5 for error code details.

MONITOR PROGRAM

“A” Group

“D” Group

“B” Group
“C” Group
“H” Group
“P” Group
“U” Group
“F” Group

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2–31

Keypad Navigational Map

Display Data

D002–D104

0.0 0

Store as

powerup

default

Increment/
decrement

1

PRG LED

0.0 0

Write data

to F001,

store D001

as power­up default

The SJ7002 Series inverter drives have many programmable functions and parameters.
Chapter 3 will cover these in detail, but you need to access just a few items to perform the
powerup test. The menu structure makes use of function codes and parameter codes to allow
programming and monitoring with only a 4-digit display and a few keys and LEDs. So, it is
important to become familiar with the basic navigational map of parameters and functions in
the diagram below. You can later use this map as a reference.

Monitor Mode Program Mode

FUNC.

1

d 104

1

Select ParameterSelect Function

U0 12

FUNC. FUNC.

1

2

2

U00 1 d00 1

Edit Parameter

P 13 1

1

d00 1

STR

1

2

1

P 13 1

value

Edit

D001

2

STR

FUNC.

U---

1

P---

1

H---

1

C---

1

b---

1

A---

1

F004

1

F00 1

2

1

FUNC.

2

2

2

FUNC.

2

2

2

FUNC.

2

P00 1

1

H073

1

1

C 168

1

C00 1

1

b 134

b00 1

A 153

A00 1

H001

1

1

1

2

2

2

2

FUNC.

Increment/
decrement

value

1

Edit

PRG LED

123.4

FUNC.

2

2

Write

2

2

2

Return to

parameter

data to

EEPROM,

store as

powerup

default

list

FUNC.

2

2

STR

Inverter Mounting

and Installation

2

2–32

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Using the Front Panel Keypad

Selecting
Functions and
Editing Parame­ters

and Installation

Inverter Mounting

In order to run the motor for the powerup test, this section will show how to:

• select the inverter’s maximum output frequency to the motor

• select the keypad potentiometer as the source of motor speed command

• select the keypad as the source of the RUN command

• set the number of poles for the motor

• enable the RUN command
The following series of programming tables are designed for successive use. Each table uses

the previous table’s final state as the starting point. Therefore, start with the first and continue
programming until the last one. If you get lost or concerned that some of the other parameters
settings may be incorrect, refer to “

CAUTION: If you operate a motor at a frequency higher than the inverter standard default
setting (50Hz/60Hz), be sure to check the motor and machine specifications with the respective
manufacturer. Only operate the motor at elevated frequencies after getting their approval.
Otherwise, there is the danger of equipment damage.

Setting the Motor Base Frequency -The motor is designed to operate at a specific AC
frequency. Most commercial motors are designed for 50/60 Hz operation. First, check the
motor specifications. Then follo w the steps in the table below to verify the setting or correct for
your motor. DO NOT set it for greater than 50/60 Hz unless the motor manufacturer
specifically approves operation at the higher frequency.

Action Display Func./Parameter

Restoring Factory Default Settings” on page 6–16.

FUNC.

1

FUNC.

1

FUNC.

key.

2

Press the

Press the or keys until ->

Press the key.

Press the key twice.

Press the key.

d00 1
A--­A00 1
A003

60

or

Monitor functions

“A” Group selected

First “A” parameter

Base frequency setting

Default value for base frequency
US = 60 Hz, Europe = 50 Hz

50

2

Press the or key as needed.

Press the key.

TIP: If you need to scroll through a function or parameter list, press and hold the or
key to auto-increment through the list.

1

STR

60

A003

Set to your motor specs (your
display may be different)

Stores parameter, returns to “A”
Group list

2

1

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Select the Potentiometer for Speed Command - The motor speed may be controlled from the
following sources:

• Potentiometer on front panel keypad (if present)

• Control terminals

• Remote panel
Then follow the steps in the table below to select the potentiometer for the speed command (the

table resumes action from the end of the previous table).

Action Display Func./Parameter

2–33

Inverter Mounting

and Installation

Press the key twice.

Press the key.

Press the key.

Press the key.

Select the Keypad for the RUN Command - The RUN command causes the inverter to accel­erate the motor to the selected speed. You can program the inverter to respond to either the
control terminal signal or the keypad RUN key . F ollow the steps in the table below to select the
front panel RUN key as the source for the RUN Command (the table resumes action from the
end of the previous table).

Press the key.

Press the key.

2

FUNC.

2

STR

Action Display Func./Parameter

1

FUNC.

A00 1

0 1

00

A00 1

A002

0 1

Speed command source setting

0 = potentiometer
1 = control terminals (default)
2 = keypad

0 = potentiometer (selected)

Stores parameter, returns to “A”
Group list

Run command source

1 = control terminals (default)
2 = keypad

Press the key.

Press the key.

NOTE: When you press the STR key in the last step above (and the display = 02), the Run
Enable LED above the RUN switch on the keypad will turn ON. This is normal, and does not
mean the motor is trying to run. It means that the RUN key is now enabled.
DO NOT press the RUN key at this time—finish out the programming exercise first.

1

STR

02

A002

2 = keypad (selected)

Stores parameter, returns to “A”
Group list

2–34

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Using the Front Panel Keypad

Configure the Inverter for the Number of Motor Poles- The number of magnetic poles of a
motor is determined by the motor’s internal winding arrangement. The specifications label on
the motor usually indicates its number of poles. For proper operation, verify the parameter
setting matches the motor poles. Many industrial motors have four poles, corresponding to the
default setting in the inverter.

Follow the steps in the table below to verify the motor poles setting and change it if necessary
(the table resumes action from the end of the previous table.)

Action Display Func./Parameter

Inverter Mounting

and Installation

Press the key.

Press the key three times.

Press the key.

Press the key five times.

Press the key.

Press the or key as needed.

Press the key.

This step concludes the parameter setups for the inverter . You are almost ready to run the motor
for the first time!

TIP: If you became lost during any of these steps, first observe the state of the PRG LED. Then
study the “
keypad controls and display. As long as you do not press the STR key, no parameters will be
changed by keypad entry errors. Note that power cycling the inverter will not cause it to reset to
a particular programming state.

FUNC.

1

FUNC.

1

FUNC.

2

1

STR

Keypad Navigational Map” on page 2–31 to determine the current state of the

A--­H--­H00 1
H004

4

4

H004

“A” Group selected

“H” Group selected

First “H” parameter

Motor poles parameter

2 = 2 poles
4 = 4 poles (default)
6 = 6 poles
8 = 8 poles

Set to match your motor (your
display may be different)

Stores parameter, returns to “H”
Group list

The next section will show you how to monitor a particular parameter from the display. Then
you will be ready to run the motor.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2–35

Monitoring Parameters with the Display

After using the keypad for parameter
editing, it’s a good idea to switch the
inverter from Program Mode to Monitor
Mode. This will turn out the PRG LED, and
the Hertz, Volt, Ampere, or % LED
indicates the display units.

RUN

PRG

RUN

FUNC.

HITACHI

50.0

STOP

RESET

1

MIN MAX

2

POWER

ALARM

HZ
V

A

%

STR

kW

For the powerup test, monitor the motor speed indirectly by viewing the inverter’s output
frequency. The output frequency must not be confused with base frequency (50/60 Hz) of the
motor, or the carrier frequency (switching frequency of the inverter, in the kHz range). The
monitoring functions are in the “D” list, located near the top left of the diagram in the “

Keypad

Navigational Map” on page 2–31.

Output frequency (speed) monitor - Resuming the keypad programming from the previous
table, follow the steps in the table below.

Action Display Func./Parameter

Press the key.

Press the key.

FUNC.

1

H--­d00 1

“H” Group selected

Output frequency selected

Inverter Mounting

and Installation

Running the Motor

Press the key.

When the

FUNC.

d001 function code appeared, the PRG LED went OFF. This confirms the inverter is

0.0 0

Output frequency displayed

no longer in programming mode, even while you are selecting the particular monitoring param­eter. After pressing the FUNC. key, the display shows the current speed (is zero at this point).

If you have programmed all the parameters up to this point, you’re ready to run the motor!
First, review this checklist:

1. Verify the Power LED is ON. If not, check the power connections.

2. Verify the Run Key Enable LED is ON. If not, review the programming steps to find the

problem.

3. Verify the PRG LED is OFF. If it is ON, review the instructions above.

4. Make sure the motor is disconnected from any mechanical load.

5. Turn the potentiometer to the MIN position (completely counterclockwise).

6. Now, press the RUN key on the keypad. The RUN LED will turn ON.

7. Slowly increase the potentiometer setting in clockwise fashion. The motor should start

turning when the indicator is in the 9:00 position and beyond.

8. Press the STOP key to stop the motor rotation.

2–36

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Powerup Test
Observations and
Summary

and Installation

Inverter Mounting

Using the Front Panel Keypad

Step 10: Reading this section will help you make some useful observations when first running

11

the motor.
Error Codes - If the inverter displays an error code (LED format is “

Trip Events, History, & Conditions” on page 6–5 to interpret and clear the error.

Acceleration and Deceleration - The SJ700
deceleration values. The test procedure left these at the default value, 10 seconds. You can
observe this by setting the potentiometer at about half speed before running the motor. Then
press RUN, and the motor will take 5 seconds to reach a steady speed. Press the STOP key to
see a 5 second deceleration to a stop.

State of Inverter at Stop - If you adjust the motor’ s speed to zero, the motor will slow to a near
stop, and the inverter turns the outputs OFF. The high-performance SJ700
slow speed with high torque output, but not zero (must use servo systems with position
feedback for that feature). This characteristic means you must use a mechanical brake for some
applications.

Interpreting the Display - First, refer to the output frequency display readout. The maximum
frequency setting (parameter A004) defaults to 50 Hz or 60 Hz (Europe and United States,
respectively) for your application.

Example: Suppose a 4-pole motor is rated for 60 Hz operation, so the inverter is configured to
output 60 Hz at full scale. Use the following formula to calculate the RPM.

E--”), see “Monitoring

2 inverter has programmable acceleration and

2 can rotate at a very

RPM

Frequency 60×

----------------------------------------

Pairs of poles

The theoretical speed for the motor is 1800 RPM (synchronous speed). However, an induction
motor cannot generate torque unless its shaft turns at a slightly different speed. This difference
is called slip. So it’s common to see a rated speed of approximately 1750 RPM on a 60 Hz,
4-pole motor. Using a tachometer to measure shaft speed, you can see the difference between
the inverter output frequency and the actual motor speed. The slip increases slightly as the
motor’s load increases. This is why the inverter output value is called “frequency,” since it is
not exactly equal to motor speed. You can program the inverter to display output frequency in
units more directly related to the load speed by entering a constant (discussed more in depth on
page 3–45

Run/Stop Versus Monitor/Program Modes –
The Run LED on the inverter is ON in Run Mode,
and OFF in Stop Mode. The Program LED is ON
when the inverter is in Program Mode, and OFF for
Monitor Mode. All four mode combinations are
possible. The diagram to the right depicts the
modes and the mode transitions via keypad.

NOTE: Some factory automation devices such as PLCs have alternate Run/Program modes;
the device is in either one mode or the other. In the Hitachi inverter, however, Run Mode alter­nates with Stop Mode, and Program Mode alternates with Monitor Mode. This arrangement
lets you program some values while the inverter is operating—providing flexibility for
maintenance personnel.

).

Frequency 120×

-------------------------------------------

# of poles

Run Stop

Monitor Program

60 120×

--------------------- 1800RPM== ==
4

STOP

RESET

RUN

FUNC.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Emergency Stop Function

Introduction The SJ700 series inverter has the function of “uncontrolled stopping by removal of motor

power” in accordance with Stop Category 0 defined by EN60204-1. The inverter is also
designed to comply with Safety Category 3 of EN954-1. This function is generally called Safe
Stop function. The emergency stop function shuts off the inverter output (i.e. stops the switch­ing operation of the main circuit elements) in response to a command from a hardware circuit
via an intelligent input terminal without the operation by internal CPU software.

Carefully note the following points when installing or using the Emergency Stop Function:

• The emergency stop function does not electrically shut off the inverter but merely stops the
switching operation of the main circuit elements. Therefore, do not touch any terminals of
the inverter or any power lines, e.g., motor cables. Otherwise, electric shock, injury, or
ground fault may result.

• All systems that include an inverter must comply with the requirements of EN60204-1
(safety of machinery) and other applicable standards. You must confirm the contents of
standards applicable to your system.

• Before installing a system using Safe Stop function, you must fully examine whether Safe
Stop function and the safety category to be applied are adequate for your system. For details,
refer to the standards required for your system.

• Every system must be configured with an inverter, a motor, and an external shutoff device.
The external shutoff device must at least comply with Safety Category 3 of EN954-1.

• Safe Stop function is not intended for electrical insulation between the inverter and motor. If
necessary, connect a shut off device (e.g., contactor) to the motor connection cable.

• Safe Stop function is not designed to prevent malfunctions in drive process control and
application functions.

• Carefully note that digital outputs (i.e., relay and open collector outputs) are not regarded as
the safety-related signals described here. The signals output from externally installed safety
relays must be used for the safety-related control circuits installed for your system.

2–37

and Installation

Inverter Mounting

Inverter Configuration

To enable the emergency stop function, set the slide lever of slide switch SW1 to ON. The
factory default SW1 setting is OFF (Emergency Stop disabled).

NOTE: Before operating slide switch SW1, make sure that the input power supply is off.

NOTE: Carefully note that improperly turning slide switch SW1 ON or OFF will automati-

cally change function assignments to the control terminals of the inverter.

Slide switch SW1

ON

Slide lever (factory setting: OFF)

OFF

ON

2–38

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Emergency Stop Function

When the emergency stop function is enabled, intelligent input terminals [1] and [3] are used
exclusively for this function, and no other functions can be assigned to these terminals. Even if
other functions have been assigned to these terminals, these are automatically disabled and
these terminals are used exclusively for the emergency stop function.

Terminal [1] function – This terminal always serves as the “a” (N.O.) contact for the reset
[RS] signal. This signal resets the inverter and releases the inverter from the trip due to
emergency stop (error code E37).

Terminal [3] function – This terminal always serves as the “b” (N.C.) contact for the
emergency stop [EMR] signal. This signal shuts off the in verter output without the operation by
internal CPU software. This signal makes the inverter trip due to emergency stop (error
code E37).

NOTE: If intelligent input terminal [3] is left unconnected, the cable connected to the terminal
is disconnected, or the signal logic is improper, the inverter trips due to emergency stop (E37).
If this occurs, check and correct the wiring and signal logic, and then input the reset [RS]
signal. Only the reset [RS] signal input from intelligent input terminal [1] can release the
inverter from tripping due to emergency stop (E37). The inverter cannot be released from the
E37 trip status by any operation from the digital operator.

SW1 Switch

Setting

Function selection

(normally C001)

Intelligent input terminal [1] Intelligent input terminal [3]

a/b (N.O./N.C.)

selection (use C011) *1

Function selection

(normally C003)

a/b (N.O./N.C.)

selection (use C013)

*1, *2

– Emergency

OFF

Stop disabled

(factory setting)

ON – Emergency

Stop enabled

ON (after set to

OFF once) –

Emergency Stop

disabled *3, *5

User selectable *4 User selectable *4 User selectable *4 User selectable *4

Factory

setting

Automatic assignment of functions to intelligent input terminals [1] and [3] and the terminal assigned

Fixed

(cannot be

changed)

User selectable *4 User selectable *4 User selectable *4 User selectable *4

Setting

retained

when SW1

is set ON

[RS],

code 18

[RS],

code 18

[RS],

code 18

Factory

setting

Fixed

(cannot be

changed)

Setting

retained

when SW1

is set ON

N.O.,

code 00

[RS] (code 18) *3
N.O.,

code 00

N.O.,

code 00

Factory

setting

Fixed

(cannot be

changed)

Released

from

emergency

function

stop

[JG],

code 06

[EMR],

code 64

(No

function

assigned)

Factory

setting

Fixed

(cannot be

changed)

Setting

retained

when SW1

is set ON

N.O.,

code 00

N.C.,

code 01

N.C.,

code 01

Note 1: When function [RS] (code 18) is assigned to the input terminal, “a/b (N.O./N.C.)”

selection is always 00 (N.O.).

Note 2: When terminal setting C003 is [EMR] (code 64), terminal setting C013 is always

01 (N.C.).

Note 3: If function [RS] (code18) has been assigned to an intelligent input terminal other than

intelligent input terminals [1] and [3] before slide switch SW1 is set to ON, the input
terminal setting for that terminal is automatically changed to NO (no function
assigned) when slide switch SW1 is set to ON. This prevents any duplication of
terminal functions. Even if slide switch SW1 is subsequently turned OFF, the original
function setting for the terminal will not be restored. If necessary, the original
function will have to be reassigned to the terminal.

Example – If slide switch SW1 is set to ON when function [RS] (code18) has been
assigned to input terminal 2 (by terminal setting C002), terminal setting C002 is
changed to NO (no function assigned), and function [RS] (code 18) is assigned to
input terminal 1 (by terminal setting C001). Even if slide switch SW1 is subsequently

Copying Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Data

SJ7002 Inverter

turned OFF, terminal [2] function C002 and terminal [1] function C001 will remain
as NO (no function assigned) and [RS] (code 18), respectively.

Note 4: Function [EMR] (code 64) cannot be assigned to input terminal 3 by an operation

from the digital operator . The functi on is automatically assigned to the terminal when
slide switch SW1 is set to ON.

Note 5: After slide switch SW1 has been set to ON once, function assignments to intelligent

input terminals [1] and [3] are not returned to their original assignments. If necessary,
reassign original functions to the intelligent input terminals.

Note that data from an inverter configured for the emergency stop function can affect copy
operations when using an optional operator (SRW or SRW-EX).

If operator data is copied to a SJ700 series inverter that has slide switch SW1 in the ON
position from another SJ700 series inverter whose slide switch SW1 is OFF or an SJ300 series
inverter, the digital operator on your SJ700 series inverter may display [R-ERROR COPY
ROM] for a moment. This event may occur because the data on intelligent input terminals [1]
and [3] cannot be copied since, on your inverter, exclusive functions have already been
assigned to intelligent input terminals [1] and [3] due to the slide switch SW1 setting to ON.
Note that other data is copied. If this event occurs, check the settings on both copy-source and
copy-destination inverters.

NOTE: To use the copied data in inverter operation, power OFF and ON again after the copy
operation is complete.

2–39

Inverter Mounting

and Installation

Safety Categories The following Safety Categories are defined by EN954-1 (JIS B 9705).

Category Safety requirement System behavior

Components, safety-related parts of control
system, and protective equipment must be
designed, manufactured, selected, assembled,

B

and combined in accordance with related
standards to ensure resistance to the anticipated
adverse effects of faults.

1 The requirements of Category B must be

applied. Proven components and safety
principles must be applied.

2

The requirements of Category B and proven
safety principle specifications must be applied.
The safety function must be checked by the
machine control system at appropriate inter­vals. The requirements of category B and
proven safety principle specifications must be
applied. Safety-related parts must be designed
to meet the following requirements:

• Any single defect (fault) in a part must not

cause any loss of the safety functions.

• If a single defect (fault) occurs, it must

always be detected when the safety function
can be reasonably implemented.

A defect (fault) may cause a loss
of the safety function.

A defect (fault) may cause a loss
of the safety function. However,
the probability of loss is less than
that specified for Category B.

• A defect (fault) occurring

during checking may cause a
loss of the safety function.

• A loss of the safety function is

detected by checking.

Principle for

achieving

safety

Characterized

mainly by the

selection of

components

Characterized

mainly by the

structure

2–40

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Emergency Stop Function

Category Safety requirement System behavior

Principle for

achieving

safety

Inverter Mounting

and Installation

3 The requirements of category B and proven

safety principle specifications must be applied.
Safety-related parts must be designed to meet
the following requirements:

• The safety function always operates when a

single defect (fault) occurs.

• Each single defect (fault) is eventually

detected to prevent the loss of the safety
function.

4

The requirements of category B and proven
safety principle specifications must be applied.
Safety-related parts must be designed to meet
the following requirements:

• Any single defect (fault) in a part must not

cause any loss of the safety function.

If a single defect (fault) occurs, it must

•

be detected when or before the next
operation request is made to the safety
function. If single defects (faults) cannot
be detected, the accumulation of defects
(faults) must not cause any loss of the
safety function.

NOTE: The system manufacturer is responsible for selecting the level of risk factors in
accordance with EN954-1. (Stop categories are defined by EN60204-1.)

• The safety function always

operates when a single defect
(fault) occurs.

• Almost all defects (faults) are

detected.

• Accumulation of undetected

defects (faults) may cause a
loss of the safety function.

• The safety function always

operates when a single defect
(fault) occurs.

• Each sing le defect (fault) is

eventually detected to prevent
the loss of the safety function.

Characterized mainly

by the structure

Wiring Examples The examples of wiring shown below are based on the three stop categories compliant with

European Machinery Directive EN60204-1.

• Category 0: (Uncontrolled) stopping by immediate removal of power to machine actuators

• Category 1: Stopping by removal of power after controlled stopping with power to machine
actuators retained

• Category 2: Controlled stopping with power to machine actuators retained

NOTE: The Safe Stop function must be activated at least once a year for preventive
maintenance purposes.

NOTE: Before preventi v e maintenance, the machine must be turned off. If the po wer supply to
the motor is not turned off during testing, the Safe Stop function will not operate. In such case,
the inverter must be replaced.

The examples of wiring below are intended to implement the Safe Stop function through safety
input of the EMR signal by the method complying with EN954-1 Category 3.

• The emergency stop circuit is monitored via an external safety relay (safety switching
device).

• One safety relay (safety switching device) can be used for multiple inverters.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

2–41

Example with

sourcing logic

Emergency

stop

R

+

T–

S13

S14

Safety switching device

PNOZ X5

13
14

S22
S12
S11

S33
S34

23
24

Inverter

SJ700

2

SW1

W
G

ON

U
V

Motor

Inverter Mounting

and Installation

R
S
T

G

R
S
T

G

P24
PLC
CM1

1
2
3

4
5
6
7
8

[RS]

[EMR]

Example with

sinking logic

Emergency

stop

R

+

T–

S13

S14

Safety switching device

PNOZ X5

13
14

S22
S12
S11

S33
S34

23
24

Inverter

SJ700

2

SW1

W
G

ON

U
V

Motor

R
S
T

G

R

S

T

G

P24
PLC
CM1

1
2
3

4
5
6
7
8

[RS]

[EMR]

NOTE: The safety relay (safety switching device) used in these examples is the PNOZ X5
made by Pilz. Use a safety switching device equivalent to the PNOZ X5.

2–42

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

and Installation

Inverter Mounting

Emergency Stop Function

• S13 Emergency stop button – Switches the inverter into safe stop mode and the motor into
free-running status

• S14 Start/stop button – Switches the inverter into safe stop mode by [EMR] signal input to a
digital input terminal and sets the motor into free-running status. (This operation corre­sponds to EN60204-1 Stop Category 0.)

• Safe stop mode continues as long as the [EMR] signal is input or until the [RS] signal is
input even after the [EMR] signal is canceled.

• To use the inverter for an application in which a mechanical brake (such as a crane or
elevator) must be controlled, the safety output from an external safety relay must be serially
connected to the brake control circuit.

NOTE: The cables used for safety relay wiring, the EMR signal, and RS signal must be
shielded coaxial cables, such as type RG174/U complying with MIL-C17 (made by LAPP) or
KX3B complying with NF C 93-550. Each cable must be 2.8 mm in outer diameter and 2 m or
less in length. The cable shielding must be grounded.

NOTE: Every inductor-related device, such as a relay or contactor, must have an over-voltage
protection circuit.

Configuring

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3

Drive Parameters

In This Chapter.... page

— Choosing a Programming Device..................................................... 2

— Using Keypad Devices...................................................................... 3

— “D” Group: Monitoring Functions ...................................................... 6

— “F” Group: Main Profile Parameters.................................................. 9

— “A” Group: Standard Functions....................................................... 10

— “B” Group: Fine-Tuning Functions.................................................. 30

— “C” Group: Intelligent Terminal Functions ....................................... 50

— “H” Group: Motor Constants Functions........................................... 66

— “P” Group: Expansion Card Functions............................................ 69

— “U” Group: User-selectable Menu Functions .................................. 74

— Programming Error Codes.............................................................. 75

3–2

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Choosing a Programming Device

Choosing a Programming Device

Introduction Hitachi variable frequency drives (in vert ers) use the latest electronics technology for getting the

right AC waveform to the motor at the right time. The benefits are many, including energy
savings and higher machine output or productivity. The flexibility required to handle a broad
range of applications has required ever more configurable options and parameters—inverters
are now a complex industrial automation component. And this can make a product seem diffi­cult to use, but the goal of this chapter is to make this easier for you.

As the powerup test in Chapter 2 demonstrated, you do not have to program very many param­eters to run the motor. In fact, most applications would benefit only from programming just a
few, specific parameters. This chapter will explain the purpose of each set of parameters, and
help you choose the ones that are important to your application.

If you are developing a new application for the inverter and a motor, finding the right parame­ters to change is mostly an exercise in optimization. Therefore, it is okay to begin running the
motor with a loosely tuned system. By making specific, individual changes and observing their
effects, you can achieve a finely tuned system. And, the SJ700
auto-tuning algorithm to set certain motor parameters.

2 Series inverters have a built-in

Inverter Programming Keypads

Parameters

Configuring Drive

The front panel keypad is the first and best way to get to know the inverter’s capabilities. Every
function or programmable parameter is accessible from the keypad. All keypads have the same
basic layout, but with different features. The OPE–SRE has a potentiometer knob for frequency
setting input. The SRW–0EX Read/write Copy Unit has the ability to upload (copy) or
download (write) all in v erter parame ter data to/from memory i n the copy unit itself. This unit is
useful in transferring one inverter’s settings to another.

The following table shows various programming options, the features unique to each device,
and the cables required.

Cables (for optional

Device

Inverter keypad,
U.S. version

Inverter keypad,
European version

Read/write Copy
Unit with Keypad

TIP: Other special-purpose keypads are available, such as ones to serve the needs of the HVAC
market (heating, ventilating & air conditioning). Please contact your Hitachi distributor for
details.

Part

Number

OPE–SRE Monitor and

OPE–S Monitor and

SRW–0EX Monitor and

Parameter

Access

program

program

program; read or
write all data

Parameter

setting

storage

EEPROM in
inverter

EEPROM in
inverter

EEPROM in
inverter or in
copy unit

external mounting)

Part

number

ICS–1 1 meter
ICS–3 3 meters

Use same two cables as

Use same two cables as

Length

above

above

Using Keypad Devices

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

SJ7002 Inverter

3–3

Inverter Front Panel Keypad

Key and Indicator Legend

The SJ7002 Series inverter front keypad contains all the elements for both monitoring and
programming parameters. The keypad layout (OPE–SRE) is shown below. All other
programming devices for the inverter have a similar key arrangement and function.

Power LED

Alarm LED
Display Units LEDs

Hertz
Volts or Amperes
(kW = both ON)
Percent

Potentiometer Enable LED
Potentiometer

Run/Stop LED

Program/Monitor LED

Run Key En able LED

Run Key
Stop/Reset Key

Parameter Display

HITACHI

RUN

PRG

RUN

FUNC.

60.0

STOP

RESET

1

MIN MAX

2

POWER

ALARM

HZ
V

A

%

STR

kW

• Run/Stop LED – ON when the inverter output is ON and the motor is developing torque,

and OFF when the inverter output is OFF (Stop Mode).

• Program/Monitor LED – This LED is ON when the inverter is ready for parameter editing

(Program Mode). It is normally OFF when the parameter display is monitoring data
(Monitor Mode). However, the PRG LED will be ON whenever you are monitoring the
value of parameter D001. (When the keypad is enabled as the frequency source via
A001=02, you can edit the inverter frequency directly from D001 monitor display by using
the Up/Down keys.)

• Run Key – Press this key to run the motor (the Run Enable LED must be ON first). Parame-

ter F004, Keypad Run Key Routing, determines whether the Run key generates a Run FWD
or Run REV command.

• Run Key Enable LED – is ON when the inverter is ready to respond to the Run key, OFF

when the Run key is disabled.

• Stop/Reset Key – Press this key to stop the motor when it is running (uses the programmed

deceleration rate). This key will also reset an alarm that has tripped.

• Potentiometer (OPE–SRE only) – allows an operator to directly set the motor speed when

the potentiometer is enabled for output frequency control

• Potentiometer Enable LED – ON when the potentiometer is enabled for value entry

(OPE–SRE only).

• Parameter Display – a 4-digit, 7-segment display for parameters and function codes.

• Display Units: Hertz/Volts/Amperes/kW/% – These LEDs indicate the units associated

with the parameter display. When the display is monitoring a parameter, the appropriate
LED is ON. In the case of kW units, both Volts and Amperes LEDs will be ON. An easy
way to remember this is that kW = (V x A)/1000.

• Power LED – This LED is ON when the power input to the inverter is ON.

• Alarm LED – This LED is ON when an alarm condition has tripped the inverter. Clearing

the alarm will turn this LED OFF again. See Chapter 6 for details on clearing alarms.

• Function Key – This key is used to navigate through the lists of parameters and functions

for setting and monitoring parameter values.

• Up/Down ( , ) Keys – Use these keys to alternately move up or down the lists of

2

1

parameter and functions shown in the display, and increment/decrement values.

• Store ( ) Key – When the unit is in Program Mode and the operator has edited a param-

STR

eter value, press the Store key to write the new value to the EEPROM. This parameter is then
displayed at powerup by default. If you want to change the powerup default, navigate to a
new parameter value and press the Store key.

Configuring Drive

Parameters

3–4

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Using Keypad Devices

Keypad Navigational Map

Parameters

Configuring Drive

Whether you use the keypad on the inverter or the read-write copy unit, each navigates the same
way. The diagram below shows the basic navigational map of parameters and functions.

Monitor Mode Program Mode

Display Data

D002–D104

0.0 0

FUNC.

1

d 104

1

Select ParameterSelect Function

U0 12

FUNC. FUNC.

1

2

2

U00 1 d00 1

Edit Parameter

P 13 1

1

d00 1

STR

1

2

1

P 13 1

H001

1

2

2

2

2

FUNC.

FUNC.

2

2

2

Store as
powerup

default

Increment/
decrement

value

2

1

Edit

PRG LED

D001

0.0 0

FUNC.

U---

1

P---

1

H---

1

C---

1

b---

1

A---

1

1

FUNC.

2

2

2

FUNC.

2

2

2

P00 1

1

H073

1

1

C 168

1

C00 1

1

b 134

F004

STR

Write data

to F001,

store D001

as power­up default

1

F00 1

2

2

FUNC.

b00 1

1

A 153

1

A00 1

2

2

Return to

parameter

list

2

FUNC.

Increment/
decrement

value

2

1

Edit

PRG LED

123.4

STR

Write

data to

EEPROM,

store as

powerup

default

2

NOTE: The in verter 7-segment display sho ws lo wer case “b” and “d”, meaning the same as the
upper case letters “B” and “D” used in this manual (for uniformity “A to F”).

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–5

Operational Modes

The RUN and PGM LEDs tell just part of the story;
Run Mode and Program Modes are independent
modes, not opposite modes. In the state diagram to
the right, Run alternates with Stop, and Program

STOP

Run Stop

RESET

RUN

Mode alternates with Monitor Mode. This is a very
important ability, for it shows that a technician can
approach a running machine and change some
parameters without shutting down the machine.

Monitor P rogram

FUNC.

The occurrence of a fault during operation will
cause the inv erter to enter the T rip Mode as sho wn.
An event such as an output overload will cause the
inverter to exit the Run Mode and turn OFF its

Run Stop

STOP

RESET

RUN

output to the motor. In the Trip Mode, any request

Trip

STOP

RESET

Fault

to run the motor is ignored. You must clear the
error by pressing the Stop/Reset switch. See

Monitoring Trip Events, History, & Conditions”

“

Fault

on page 6–5.

Run Mode Edits The inverter can be in Run Mode (inverter output is controlling motor) and still allow you to

edit certain parameters. This is useful in applications that must run continuously, yet need some
inverter parameter adjustment.

The parameter tables in this chapter have a column titled “Run Mode
Edit.” An Ex mark ✘ means the parameter cannot be edited; a Check
mark ✔ means the parameter can be edited. You’ll notice in the table
example to the right the two adjacent marks: “✘ ✔”. The two marks
(that can also be “✘ ✘” or “✔ ✔”) correspond to these levels of access
to editing:

• Low-access level to Run Mode edits (indicated by left-most mark)

• High-access level to Run Mode edits (indicated by right-most mark)

Run

Mode

Edit

Lo Hi

✘ ✔

Configuring Drive

Parameters

Control Algorithms

The Software Lock Setting (parameter B031) determines the particular access level that is in
effect during Run Mode and access in other conditions, as well. It is the responsibility of the
user to choose a useful and safe software lock setting for the inverter operating conditions and
personnel. Please refer to “

The motor control program in the SJ7002

Software Lock Mode” on page 3–38 for more information.

Inverter Control Algorithms

inverter has several sinusoidal PWM
switching algorithms. The intent is that you
select the best algorithm for the motor

V/f control,

constant torque

characteristics in your application. Each
algorithm generates the frequency output in
a unique way. Once configured, the
algorithm is the basis for other parameter
settings as well (see “

Torque Control
Algorithms” on page 3–14). Therefore,

choose the best algorithm early in your
application design process.

V/f control,

variable torque

V/f control, free-

setting curve

Output

Sensorless vector

(SLV) control

SLV control,
0Hz domain

Vector control with

sensor

3–6

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

“D” Group: Monitoring Functions

“D” Group: Monitoring Functions

Parameters

Configuring Drive

Parameter Monitoring Functions

You can access important system parameter values with the “D” Group monitoring functions,
whether the inverter is in Run Mode or Stop Mode. After selecting the function code number
for the parameter you want to monitor, press the Function key once to show the value on the
display. In Functions D005 and D006 the intelligent terminals use individual segments of the
display to show ON/OFF status.

Func.

Code

D001 Output frequency monitor Real-time display of output frequency to

D002 Output current monitor Filtered display of output current to motor

D003 Rotation direction monitor Three different indications: —

Name Description Units

motor, from 0.0 to 400.0 Hz

(100 mS internal filter time constant)

0.0 to 400.0
Hz

A

Forward Stop Reverse

D004 Process variable (PV), PID

feedback monitor

D005 Intelligent input terminal

status

Displays the scaled PID process variable
(feedback) value (A75 is sca l e factor)

Displays the state of the intelligent input
terminals:

—

—

ON
OFF

D006 Intelligent output terminal

status

78

FW

Terminal symbols

Displays the state of the intelligent output
terminals:

123456

ON
OFF

13

12

1415AL

11

Terminal symbols

D007 Scaled output frequency

monitor

D008 Actual frequency monitor Displays the actual shaft speed of the motor,

D009 Torque command monitor Displays the level of the torque command

D010 Torque bias monitor Displays the level of the torque bias, if

Displays the output frequency scaled by the
constant in B0086. Decimal point indicates
range:
XX.XX 0.00 to 99.99
XXX.X 100.0 to 999.9
XXXX. 1000 to 9999
XXXX 10000 to 99990

converted to frequency

when the inve rter is set to torque control mode

enabled, when the inverter is in vector control
mode with feedback

—

User-

defined

Hz

%

%

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–7

Func.

Code

D012 Torque monitor Estimated output torque value, range is -300.0

D013 Output voltage monitor Voltage of output to motor,

D014 Power monitor Input power to inverter, range is 0.0 to 999.9 kW
D015 Cumulative power monitor Displays cumulative input power to inv erter;

D016 Cumulative operation RUN

time monitor

D017 Cumulative power-on time

monitor

D018 Heat sink temperature

monitor

D019 Motor temperature monitor Displays motor internal temperature (requires

D022 Component life monitor Displays estimated life status of DC bus

D023 Program counter Displays the current program step being

D024 Program number counter Displays the EZ Sequence program identifica-

D025 User monitor 0 Displays state of internal EZ Sequence register

D026 User monitor 1 Displays state of internal EZ Sequence register

D027 User monitor 2 Displays state of internal EZ Sequence register

D028 Pulse counter Displays accumulated pulse count of [PCNT]

D029 Position setting monitor Displays absolute position command for

D030 Position feedback monitor Displays absolute position of motor shaft

D102 DC voltage monitoring Displays the DC Bus voltage V
D103 BRD load factor monitoring Displays the running average Dynamic

D104 Electronic thermal overload

monitoring

Name Description Units

to +300.0%

range is 0.0 to 600.0V

B079 selects the multiplier for units. Range is

0.0 to 999.9, 1000 to 9999, or 100 to 999
Displays total time the inverter has been in

RUN mode in hours.
Range is 0 to 9999 / 1000 to 9999/
100 to 999 (10,000 to 99,900) hrs.

Displays total time the inverter has had input
power (ON) in hours. Range is:
0 to 9999 / 100.0 to 999.9 /
1000 to 9999 / 100 to 999 hrs.

Displays the temperature of the inverter’s heat
sink

an NTC thermistor installed in the motor and
connected to [TH] and [CM1]).

capacitors and cooling fans

executed when the inverter is operating under
the control of an EZ Sequence program

tion number, if defined in the program, when a
program is loaded in the inverter

User Monitor 0

User Monitor 1

User Monitor 2

intelligent input terminal (option code 74)

motor shaft in absolute position control mode

when in absolute position control mode

Braking usage ratio (%ED)
Displays the motor electronic thermal

overload estimated temperature ratio. If the
value reaches 100%, the inverter will trip
(E05).

%

VAC

kW/h

hours

hours

°C

°C

—

Programs

Program

—

—

—

Pulses

Pulses

Pulses

%

%

Configuring Drive

Parameters

3–8

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

“D” Group: Monitoring Functions

Trip Event and Programming Error Monitoring

Parameters

Configuring Drive

The trip event and history monitoring feature lets you cycle through related information using
the keypad. See “

Programming errors generate an error code that begins with the special character. See

Programming Error Codes” on page 3–75 for more information.

“

Func.

Code

D080
D081

to
D086

D090

Monitoring Trip Events, History, & Conditions” on page 6–5 for more details.

Name Description Units

Trip Counter Number of trip events
Trip monitor 1 to 6 Displays trip event information

Programming error
monitor

Displays programming error code

—
—

—

“F” Group: Main Profile Parameters

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

The basic frequency (speed) profile is
defined by parameters contained in the
“F” Group as shown to the right. The
output frequency is set in Hz, but accel­eration and deceleration are specified
seconds (the time to ramp from zero to
maximum frequency , or from ma ximum
frequency to zero). The motor direction
parameter determines whether the
keypad Run key produces a FW or RV
command. This parameter does not
affect the [FW] terminal or [RV] intelligent terminal function, which you configure separately.

Acceleration 1 and Deceleration 1 are the standard default accel and decel values for the main
profile. Accel and decel values for an alternative profile are specif ied by using parameters Ax92
through Ax93. The motor direction selection (F004) determines the direction of rotation as
commanded only from the keypad. This setting applies to any motor profile (1st, 2nd, or 3rd) in
use at a particular time.

Output
frequency

F001

SJ7002 Inverter

F002 F003

3–9

t

Configuring Drive

Parameters

Keypad

Func.

Code

F001 Output frequency setting — — 0 to 400 (Hz) 0.00 0.00 0.00 ✔ ✔

Standard default target frequency that deter­mines constant motor speed

F002 Acceleration (1) time setting — — 0.01 to 3600 (seconds) 30.0 30.0 30.0 ✔ ✔

Standard default acceleration

F202 Acceleration (1) time setting, 2nd motor — — 0.01 to 3600 (seconds) 30.0 30.0 30.0 ✔ ✔

Standard default acceleration, 2nd motor

F302 Acceleration (1) time setting, 3rd motor — — 0.01 to 3600 (seconds) 30.0 30.0 30.0 ✔ ✔

Standard default acceleration, 3rd motor

F003 Deceleration (1) time setting — — 0.01 to 3600 (seconds) 30.0 30.0 30.0 ✔ ✔

Standard default deceleration

F203 Deceleration (1) time setting, 2nd motor — — 0.01 to 3600 (seconds)

Standard default deceleration, 2nd motor

F303 Deceleration (1) time setting, 3rd motor — — 0.01 to 3600 (seconds)

Standard default deceleration, 3rd motor

F004 Keypad Run key routing FW

Name/

Description

SRW OPE

00 Forward

RV

0 1 Reverse

Range and Settings

Defaults

FEF2

FE2

(EU)

FUF2

FU2

(USA)

FF2

F2

(Jpn)

30.0 30.0 30.0

30.0 30.0 30.0

00 00 00

Run

Mode

Edit

Lo Hi

✔ ✔

✔ ✔

✘ ✘

3–10

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

“A” Group: Standard Functions

“A” Group: Standard Functions

Basic Parameter Settings

Parameters

Configuring Drive

These settings affect the most fundamental behavior of the inverter—the outputs to the motor.
The frequency of the inverter’s AC output determines the motor speed. You may select from
three different sources for the reference speed. During application development you may prefer
using the potentiometer, but you may switch to an external source (control terminal setting) in
the finished application, for example.

The base frequency and maximum frequency settings interact according to the graph below
(left). The inverter output operation follows the constant V/f curv e until it reaches the full-scale
output voltage. This initial straight line is the constant-torque part of the operating characteris­tic. The horizontal line over t o the maximum frequency serves to let the motor run faster, but at
a reduced torque. This is the constant-horsepower part of the characteristic. If you want the
motor to output constant torque over its entire operating range (limited to the motor nameplate
voltage and frequency rating), then set the base frequency and maximum frequency equal as
shown (below right).

V

100% 100%

00

A003 A004

Base

Frequency

t

Maximum

Frequency

V

Constant torque

Base frequency =

maximum frequency

A003
A004

t

NOTE: The “2nd motor” and “3rd motor” settings in the tables in this chapter store an alter­nate set of parameters for additional motors. The inverter can use the 1st, 2nd, or 3rd set of
parameters to generate the output frequency to the motor. See “

Configuring the Inverter for

Multiple Motors” on page 4–76.

Keypad

Func.

Code

A001 Frequency source setting VR 00 Keypad potentiometer 01 01 02 ✘ ✘

A002 Run command source setting TRM

Name/

Description

SRW OPE

TRM

REM

RS485

OP1

OP2

PLS

PRG

MATH

REM

RS485

OP1

OP2

Range and Settings

0 1 Control terminal
02 Function F001 setting
03 RS485 serial comm and
04 Expansion board 1
05 Expansion board 2
06 Pulse train input
07 Easy sequence

10 Calculate function input
0 1 Input terminal [FW] or [RV] (assignable)
02 Run key on keypad of digital operator
03 RS485 serial comm and
04 Start/Stop, expansion card #1
05 Start/Stop, expansion card #2

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

01 01 02

FF2

F2

(Jpn)

Run

Mode

Edit

Lo Hi

✘ ✘

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–11

Keypad

Func.

Code

A003 Base frequency setting 30. to maximum frequency (Hz)
A203 Base frequency setting, 2nd motor 30. to maximum frequency (Hz)
A303 Base frequency setting, 3rd motor 30. to maximum frequency (Hz)
A004 Maximum frequency setting 30. to 400. (Hz) 50. 60. 60. ✘ ✘
A204 Maximum frequency setting, 2nd motor 30. to 400. (Hz) 50. 60. 60. ✘ ✘
A304 Maximum frequency setting, 3rd motor 30. to 400. (Hz) 50. 60. 60. ✘ ✘

Name/

Description

SRW OPE

Range and Settings

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

50. 60. 60.

50. 60. 60.

50. 60. 60.

FF2

F2

(Jpn)

Run

Mode

Edit

Lo Hi

✘ ✘

✘ ✘

✘ ✘

NOTE: Intelligent terminals [OPE] (option code 31) or [F-TM] (option code 51) can override
settings A001 and A002 when either terminal is ON and the operation commands for that
terminal is enabled.

NOTE: When using a remote operator (SRW) to operate the inverter, the REMT (remote) key
allows you to enter the frequency setting and operation commands remotely.

NOTE: When the DeviceNet option board (SJ-DN) is installed, you may keep the A002
default setting because the Run Command Source is automatically set via DeviceNet. Other­wise, only use settings A002 = 01, 02, or 03.

Configuring Drive

Parameters

Analog Input and Miscellaneous Settings

NOTE: The base frequency must be less than or equal to the maximum frequency (ensure that
A003 ≤ A004).

The inverter has the capability to accept external analog inputs that can command the output
frequency to the motor. Signals including voltage input (0 to +10V) at terminal [O], bipolar
input (-10 to +10V) at terminal [O2], and current input (4 to 20mA) at terminal [OI] are avail­able. Terminal [L] serves as signal ground for the three analog inputs. The analog input settings
adjust the curve characteristics between the analog input and the frequency output.

Adjusting [O–L] characteristics – In the
graph to the right, A013 and A014 select

f

max. frequency

the active portion of the input voltage
range. Parameters A011 and A012 select

A012

the start and end frequency of the
converted output frequency range, respec­tively. Together, these four parameters
define the major line segment as shown.
When the line does not begin at the origin
(A011 and A013 > 0), then A015 defines
whether the inverter outputs 0Hz or the
A011-specified frequency when the
analog input value is less than the A013

A011

0%

0V

A015=0

A013 A014

A015=1

% input

100%

10V

setting. When the input voltage is greater
than the A014 ending value, the inverter
outputs the ending frequency specified by
A012.

3–12

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

“A” Group: Standard Functions

Parameters

Configuring Drive

Adjusting [OI–L] characteristics – In
the graph to the right, A103 and A104

f

max. frequency

select the active portion of the input
current range. Parameters A101 and A102

A102

select the start and end frequency of the
converted output frequency range, respec­tively. Together, these four parameters
define the major line segment as shown.
When the line does not begin at the ori gin
(A101 and A103 > 0), then A105 defines
whether the inverter outputs 0Hz or the
A101-specified frequency when the
analog input value is less than the A103

A101

0%

4mA

A105=0

A103 A104

A105=1

% input

100%
20mA

setting. When the input voltage is greater
than the A104 ending value, the inverter outputs the ending frequency specified by A102.

Adjusting [O2–L] characteristics – In
the graph to the right, A113 and A114

max. fwd frequency

f

select the active portion of the input
voltage range. Parameters A111 and
A112 select the start and end frequency of
the converted output frequency range,
respectively. Together, these four parame­ters define the major line segment as
shown. When the input voltage is less
than the A113 input starting value, the
inverter outputs the starting frequency

–100%

-10V

A113

A112

0

A111

A114

% input

+100%

+10V

specified by A111. When the input
voltage is greater than the A114 ending
value, the inverter outputs the ending

max. rev frequency

f

frequency specified by A112.

Keypad

Func.

Code

A005 [AT] selection O/OI 00 Select between [O] and [OI] at [AT] 00 00 00 ✘ ✘

A006 [O2] selection O2

A011 [O]–[L] input active range start frequency 0.00 to 99.99, 100.0 to 400.00 (Hz);

The output frequency corresponding to the
voltage input range starting point

A012 [O]–[L] input active range end frequency 0.00 to 99.99, 100.0 to 400.00 (Hz);

The output frequency corresponding to the
voltage input range ending point

Name/

Description

SRW OPE

O/O2

O/VR

OI/VR

O2/VR

O/OI-P

O/OI-PM

OFF

Range and Settings

0 1 Select between [O] and [O2] at [AT]
02 Select between [O] and keypad pot.
03 Select between [OI] and keypad pot.
04 Select between [O2] and keypad pot.
00 No summing, [O2] and [OI] 03 03 03 ✘ ✘
0 1 Sum of [O2] and [OI], neg. sum (reverse

speed reference) inhibited

02 Sum of [O2] and [OI], neg. sum (reverse

speed reference) allowed

03 Disable [O2] input

model -4000HFx2 is 0.00 to 120.00 (Hz)

model -4000HFx2 is 0.00 to 120.00 (Hz)

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

0.00 0.00 0.00 ✘ ✔

0.00 0.00 0.00 ✘ ✔

FF2

F2

(Jpn)

Run

Mode

Edit

Lo Hi

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–13

Keypad

Func.

Code

A013 [O]–[L] input active range start voltage 0. to [O]-[L] input active range end

The starting point for the voltage input range

A014 [O]–[L] input active range end voltage [O]-[L] input active range start voltage to

The ending point for the voltage input range

A015 [O]–[L] input start frequency

enable

A016 External frequency filter time constant n = 1 to 30 (where n = number of

A017 Easy sequ en ce functio n

enable

Multi-speed and Jog Frequency Settings

Name/

Description

SRW OPE

voltage (%)

100. (%)

0-EXS
OHz 0 1 Use 0 Hz

OFF 00 Disable
ON 0 1 Enable

00 Use A011 st art value 01 01 01

samples for average); 31=500ms filter

Range and Settings

The SJ7002 inverter has the capability to store and output up to 16 preset frequencies to the
motor (A020 to A035). As in traditional motion terminology, we call this multi-speed profile
capability. These preset frequencies are selected by means of digital inputs to the inverter. The
inverter applies the current acceleration or deceleration setting to change from the current
output frequency to the new one. The first multi-speed setting is duplicated for the second
motor settings (the remaining 15 multi-speeds apply only to the first motor).

The jog speed setting is used whenever the Jog command is active. The jog speed setting range
is arbitrarily limited to 10 Hz to provide safety during manual operat ion. The acceleration to the
jog frequency is instantaneous, but you can choose from six modes for the best method for
stopping the jog operation.

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

0. 0. 0. ✘ ✔

100. 100. 100. ✘ ✔

(Jpn)

FF2

F2

Run

Mode

Edit

Lo Hi

✘ ✔

8. 8. 8.

✘ ✔

00 00 00 ✘ ✘

Configuring Drive

Parameters

Keypad

Func.

Code

A019 Multi-speed operation selec-

tion

A020 Multi-speed frequency setting 0 to 360 (Hz)

Defines the first speed of a multi-speed profile

A220 Multi-speed frequency setting, 2nd motor 0 to 360 (Hz)

Defines the first speed of a multi-speed profile
for 2nd motor

A320 Multi-speed frequency setting, 3rd motor 0 to 360 (Hz)

Defines the first speed of a multi-speed profile
for 3rd motor

Multi-speed frequency settings

A021

(for multiple motors)

to
A035

Defines 15 additional speeds

Name/

Description

SRW OPE

Range and Settings

BINARY 00 Binary; up to 16-stage speed using

4 intelligent terminals

BIT 0 1 Single-bit; up to 8-stage speed using

7 intelligent terminals

A020 = Speed 0 (1st motor)

A220 = Speed 0 (2nd motor)

A320 = Speed 0 (3rd motor)

0 to 360 (Hz)
A021 = Speed 1...
A035 = Speed 15

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

00 00 00 ✘ ✘

0.00 0.00 0.00 ✔ ✔

0.00 0.00 0.00 ✔ ✔

0.00 0.00 0.00 ✔ ✔

0.00 0.00 0.00 ✔ ✔

(Jpn)

FF2

F2

Run

Mode

Edit

Lo Hi

3–14

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

“A” Group: Standard Functions

Keypad

Func.

Code

A038 Jog frequency setting 0.5 to 9.99 (Hz)

Defines limited speed for jog

A039 Jog stop mode FRS

Defines how end of jog stops
the motor

Name/

Description

SRW OPE

00 Free-run stop, jogging disabled during

DEC 0 1 Controlled deceleration, jogging

DB 02 DC braking to stop, jogging disabled

R-FRS 03 Free-run stop, jogging always enabled

R-DEC

R-DB 05 DC braking to stop, jogging always

04 Controlled decelera tion , joggi ng always

Parameters

Torque Control

Configuring Drive

Algorithms

The inverter generates the motor output
according to the V/f algorithm or the
sensorless vector control algorithm. Param­eter A044 selects the inverter torque control
algorithm for generating the frequency
output, as shown in the diagram to the right
(A244 and A344 for 2nd and 3rd motors,
respectively). The factory default is 00
(constant torque V/f control).

Review the following descriptions to help
you choose the best torque control
algorithm for your application.

• The built-in V/f curves are oriented
toward developing constant torque or
variable torque characteristics (see
graphs below).

• The free-setting curve provides an even
more flexible characteristic, but it
requires more parameter settings.

• Sensorless vector control calculates an
ideal torque vector based on current
motor position, winding currents, and so
on. It is a more robust control method than the V/f control methods. However, it is more
dependent on actual motor parameters and will require you to set these values carefully or to
perform the auto-tuning procedure (see “
obtain optimum performance.

• Sensorless vector control, 0Hz domain increases the low-speed torque performance (0–

2.5Hz) via an advanced Hitachi torque control algorithm. Howe v er, you will need to size the
inverter for one frame size larger than the motor for proper operation.

• Vector control with sensor requires expansion card SJ–FB encoder feedback board and a
motor shaft encoder. Choose this method when precise position/velocity control is required.

Range and Settings

motor run

disabled during motor run

during motor run

enabled

enabled

Auto-tuning of Motor Constants” on page 4–71) to

FEF2

FE2

(EU)

Defaults

FUF2

FU2

(USA)

FF2

F2

(Jpn)

Run

Mode

Edit

Lo Hi

1.00 1.00 1.00 ✔ ✔

00 00 00 ✘ ✔

Inverter Torque Control Algorithms

V/f control,

constant torque

V/f control,

variable torque

V/f control, free-

setting curve

Sensorless vector

(SLV) control

Sensorless vector,

0Hz domain

Vector control with

sensor

00

01

02

03

04

05

A044

Output

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–15

Constant and Variable Torque – The graph below (left) shows the constant torque character­istic from 0Hz to the base frequency A003. The voltage remains constant for output frequencies
higher than the base frequency.

Output

voltage

100%

00

Constant torque Variable torque

Base

frequency

Maximum
frequency

Output

voltage

100%

a.

10% of

base

frequency

b. c.

Base

frequency

Maximum
frequency

The graph above (right) shows the general characteristic for variable torque. The curve may be
best described in three sections, as follows:

a. The range from 0Hz to 10% of the base frequency is the constant torque characteristic.

For example, a base frequency of 60Hz ends the constant torque characteristic segment
at 6Hz.

b. The range from 10% of the base frequency to the base frequency is the variable

(reduced) torque characteristic. The vo ltage is output in the curve of frequenc y to the 1.7
power.

c. After reaching the base frequency, the characteristic maintains a constant output voltage

for higher frequencies.

Using parameter A045 you can modify the voltage gain of the inverter. This is specified as a
percentage of the full-scale setting AVR (Automatic Voltage Regulation) in parameter A082.
The gain can be set from 20% to 100%. It must be adjusted in accordance with the motor
specifications.

Torque Boost – The Constant and
Variable Torque algorithms feature an
adjustable tor que boost curve. When the
motor load has a lot of inertia or starting
friction, you may need to increase the
low frequency starting torque character-

V

100%

10%

A042 = 10

Torque boost

A

istics by boosting the voltage above the
normal V/f ratio (shown at right). The
boost is applied from zero to 1/2 the
base frequency. You set the breakpoint
of the boost (point A on the graph) by
using parameters A042 and A043. The

0

6.0Hz 30.0Hz

A043 = 10%

frequency

f base =

60Hz

manual boost is calculated as an
addition to the standard straight V/f line (constant torque curve).

Be aware that running the motor at a low speed for a long time can cause motor overheating.
This is particularly true when manual torque boost is ON or if the motor relies on a built-in fan
for cooling.

Configuring Drive

Parameters

NOTE: Manual torque boost applies only to constant torque (A044=00) and variable torque
(A044=01) V/f control.

NOTE: The motor stabilization parameter H006 is effecti v e for constant torque (A044=00) and
variable torque (A044=01) V/f control.

3–16

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

Parameters

Configuring Drive

“A” Group: Standard Functions

V/f Free-setting – The free-setting V/f inverter mode of operation uses voltage and frequency
parameter pairs to define seven points on a V/f graph. This provides a way to define a multi­segment V/f curve that best suits your application.

The frequency settings do require that
F1 ≤ F2 ≤ F3 ≤ F4 ≤ F5 ≤ F6 ≤ F7; their
values must have this ascending order
relationship. However, the voltages V1
to V7 may either increase or decrease
from one to the next. The example to the
right shows the definition of a complex
curve by following the setting require­ments.

Free-setting f7 (B112) becomes the
maximum frequency of the inverter.
Therefore, we recommend setting f7
first, since the initial value of all default
frequencies f1–f7 is 0Hz.

NOTE: The using of V/f free-setting operation specifies parameters that override (make
invalid) certain other parameters. The parameters that become invalid are torque boost (A041/
A241), base frequency (A003/A203/A303), and maximum frequency (A004/A204/A304). In
this case, we recommend leaving their settings at the factory default values.

The V/f free-setting endpoint f7/V7
parameters must stay within the more
basic inverter limits in order for the
specified free-setting characteristic
curve to be achieved. For example, the
inverter cannot output a higher voltage
than the input voltage or the AVR
setting voltage (Automatic Voltage
Regulation), set by parameter A082.
The graph to the right shows how the
inverter input voltage would clip (limit)
the characteristic curve if exceeded.

Output voltage

V7
V6

V5
V4

V1

V2, V3

B101 to
B113

(odd)

Output voltage

B101 to
B113

(odd)

0f1f2f3 f4f5f6f7Hz

V7

V6

0

Output

frequency

B100 to B112

Voltage to output or AVR voltage

f6 f7 Hz

B100 to B112

(even)

Output

frequency

(even)

Sensorless Vector Control and, Sensorless Vector Control, 0Hz Domain – These advanced
torque control algorithms improve the torque performance at very low speeds:

• Sensorless Vector Control – improved torque control at output frequencies down to 0.5 Hz

• Sensorless Vector Control, 0Hz Domain – improved torque control at output frequencies
from 0 to 2.5 Hz.

These low-speed torque control algorithms must be tuned to match the characteristics of the
particular motor connected to your inverter. Simply using the default motor parameters in the
inverter will not work satisfactorily for these control methods. Chapter 4 discusses motor/
inverter size selection and how to set the motor parameters either manually or by using the
built-in auto-tuning. Before using the sensorless vector control methods, please refer to

Setting Motor Constants for Vector Control” on page 4–69.

“

NOTE: When the inverter is in SLV (sensorless vector) mode, use B083 to set the carrier
frequency greater than 2.1 kHz for proper operation.

NOTE: You must disable sensorless vector operation when two or more motors are connected
(parallel operation) to the inverter.

SJ7002 Inverter

Clearwater Tech - Phone: [phone] - Fax: [phone] - Web: www.clrwtr.com - Email: [e-mail]

3–17

Vector Control with Encoder Feedback – This method of torque control uses an encoder as a
motor shaft position sensor. Accurate position feedback allows the in v erter to close the v elocity
loop and provide very accurate speed control, even with variations in motor loads. To use
encoder feedback you will need to add an SJ–FB Encoder Feedback Card in the inverter’s
expansion bay. Please refer to “

Expansion Cards” on page 5–5 in this manual or the SJ–FB

manual for details. The following table shows the methods of torque control selection.

Keypad

Func.

Code

A041 Torque boost method selection MANUAL 00 Manual torque boost

A241 Torque boost method selection, 2nd

motor

A042 Manual torque boost value 0.0 to 20.0 (%)

Can boost starting torque between 0 and 20% above
normal V/f curve

A242 Manual torque boost value, 2nd motor 0.0 to 20.0 (%) 1.0 1.0 1.0 ✔ ✔

Can boost starting torque between 0 and 20% above
normal V/f curve

A342 Manual torque boost value, 3rd motor 0.0 to 20.0 (%) 1.0 1.0 1.0 ✔ ✔

Can boost starting torque between 0 and 20% above
normal V/f curve

A043 Manual torque boost frequency adjustment 0.0 to 50.0 (%) 5.0 5.0 5.0 ✔ ✔

Sets the frequency of the V/f break point A in graph (top of
previous page) for torque boost

A243 Manual torque boost frequency adjustment, 2nd motor 0.0 to 50.0 (%) 5.0 5.0 5.0 ✔ ✔

Sets the frequency of the V/f break point A in graph (top of
previous page) for torque boost

A343 Manual torque boost frequency adjustment, 3rd motor 0.0 to 50.0 (%) 5.0 5.0 5.0 ✔ ✔

Sets the frequency of the V/f break point A in graph (top of
previous page) for torque boost

A044 V/f characteristic curve selection,

1st motor
Torque control modes VP

A244 V/f characteristic curve selection,

2nd motor
Torque control modes VP

Name/

Description

SRW OPE

AUTO

MANUAL

AUTO

VC

0 1 Automatic torque boost
00 Manual torque boost
0 1 Automatic torque boost

00 V/f constant torque 00 00 00 ✘ ✘

Range and Settings

0 1 V/f variable torque

FREE-V/F

SLV

0SLV

V2

VC 00 V/f constant torque 00 00 00 ✘ ✘

02 V/f free-setting curve
03 Sensorless vector SLV
04 0Hz domain SLV
05 Vector control with encoder

feedback

0 1 V/f variable torque

FREE-V/F

SLV

0SLV

02 V/f free-setting curve
03 Sensorless vector SLV
04 0Hz domain SLV

Defaults

FEF2

FUF2

FE2

FU2

(EU)

(USA)

00 00 00

00 00 00

1.0 1.0 1.0

FF2

F2

(Jpn)

Run

Mode

Edit

Lo Hi

✘ ✘

✘ ✘

✔ ✔

Configuring Drive

Parameters