For the best results with the SJ300 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.
SJ300 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 that may not
be obvious to first-time users of the product.
Hazardous High Voltage
HIGH VOLTAGE: Motor control equipment and electronic controllers are connected to haz-
ardous 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
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 mecha-
nism 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 five (5) 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
SJ300 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
SJ300 series controller to assure that the inverter will shut down in the event of an overload or
an overheated motor.
HIGH VOLTAGE: Dangerous voltage exists until power light is OFF. Wait at least 5 minutes
after input power is disconnected before performing maintenance.
CAUTION: This equipment has high leakage current and must be permanently (fixed) hard-
wired to earth ground via two independent cables.
WARNING: Rotating shafts and above-ground electrical potentials can be hazardous. There-
fore, 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.
SJ300 Inverter
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, filter,
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 indepen-
dent 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 2–14).
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
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 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 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.
............... 2–7
Wiring—Warnings for Electrical Practices and Wire Specifications
WARNING: “Use 60/75°C Cu wire only” or equivalent.............. 2–13
WARNING: “Open Type Equipment.” For models SJ300–750H to SJ300–
1500H.
WARNING: “A Class 2 circuit wired with Class 1 wire” or equivalent.............. 2–13
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.
............. 2–13
............. 2–13
............. 2–13
SJ300 Inverter
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.
............. 2–13
............. 2–13
............. 2–13
............. 2–13
............. 2–19
............. 2–19
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 InputPower Output
L1L3
L2
RST
T1T2T3
UVW
NOTE:
L1, L2, L3:Three-phase 200 to 240V 50/60 Hz
Three-phase 380 to 480V 50/60 Hz
............. 2–19
vi
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 in 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 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.
CAUTION: Failure to remove all vent opening covers before electrical
operation may result in damage to the inverter.
............. 2–16
............. 2–19
............. 2–19
............. 2–19
............. 2–20
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 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?
............. 2–21
............. 2–21
............. 2–22
............. 2–22
Warnings for Operations and Monitoring
SJ300 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 rotation 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
............. 4–12
............. 4–27
............. 4–67
viii
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
............. 4–30
............. 4–55
............. 4–70
Warnings and Cautions for Troubleshooting and Maintenance
WARNING: Wait at least five (5) 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
............. 6–11
............. 6–11
SJ300 Inverter
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 5 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.
CAUTION: Remove the fan assembly carefully, since it is attached to the
unit via connecting wires.
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.
............. 6–13
............. 6–13
............. 6–14
............. 6–16
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.
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
MCCBGFI
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
CAUTION: Do not insert leading power factor capacitors or surge absorbers between the
output terminals of the inverter and motor.
Powe r
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 five 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
Completely ground the enclosed
panel, metal screen, etc. with as
short a wire as possible.
EMI filter
Inverter
Remote
operator
Motor
Grounded frame
Conduit or shielded cable—
to be grounded
SJ300 Inverter
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
General Caution
CAUTION: Do not install inverters in a corner-grounded Delta distribution system. The result-
ing 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 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.
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
UL® Cautions, Warnings, and Instructions
Wiring Warnings
for Electrical
Practices and
Wire Sizes
Terminal Tightening Torque and
Wire Size
The Cautions, Warnings, and instructions in this section summarize the procedures necessary to
ensure an inverter installation complies with Underwriters Laboratories
WARNING: “Use 60/75°C Cu wire only” or equivalent.
WARNING: “Open Type Equipment.” For models SJ300–750H to SJ300–1500H.
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.
The wire size range and tightening torque for field wiring terminals are presented in the table
below.
Input
Voltage
Motor
Output
HPkWft-lbs(N-m)
200V
Inverter Model
Wire Size Range (AWG)
®
guidelines.
To rq ue
200V
1/20.4SJ300-004LFU201.11.5
10.75SJ300-007LFU181.11.5
21.5SJ300-015LFU141.11.5
32.2SJ300-022LFU141.11.5
53.7SJ300-037LFU101.11.5
7.55.5SJ300-055LFU81.82.5
107.5SJ300-075LFU61.82.5
1511SJ300-110LFU43.64.9
2015SJ300-150LFU23.64.9
2518.5 SJ300-185LFU13.64.9
3022SJ300-220LFU1/0 AWG6.58.8
4030SJ300-300LFU1/0 || 1/0 AWG6.58.8
5037SJ300-370LFU1/0 || 1/0 AWG6.58.8
6045SJ300-450LFU1/0 || 1/0 AWG10.113.7
7555SJ300-550LFU2/0 || 2/0 AWG10.113.7
SJ300 Inverter
xiii
Input
Vo lt a ge
400V
Motor
Output
HPkWft-lbs(N-m)
10.75 SJ300-007HFU/E201.11.5
21.5SJ300-015HFU/E181.11.5
32.2SJ300-022HFU/E161.11.5
54.0SJ300-040HFU/E141.11.5
7.55.5SJ300-055HFU/E121.82.5
107.5SJ300-075HFU/E101.82.5
1511SJ300-110HFU/E83.64.9
2015SJ300-150HFU/E63.64.9
2518.5 SJ300-185HFU/E63.64.9
3022SJ300-220HFU/E43.64.9
4030SJ300-300HFU/E33.64.9
5037SJ300-370HFU/E13.64.9
6045SJ300-450HFU/E1 AWG (75°C)6.58.8
7555SJ300-550HFU/E1/0 || 1/0 AWG6.58.8
10075SJ300-750HFU/E3/0 (1/0 || 1/0 AWG)6.58.8
12590SJ300-900HFU/E3/0 (1/0 || 1/0 AWG)10.113.7
150110SJ300-110HFU/E1/0 || 1/0 AWG10.113.7
175132SJ300-1320HFE3/0 || 3/010.113.7
200150SJ300-1500HFU3/0 || 3/010.113.7
400V
Inverter Model
Wire Size Range (AWG)
To rq ue
xiv
Fuse and Circuit
Breaker Sizes
Input
Vo lt a g e
200V
Motor
Output
HPkWHPkW
1/20.4 SJ300-004LFU10
10.75 SJ300-007LFU1021.5SJ300-015HFU/E10
21.5SJ300-015LFU1032.2SJ300-022HFU/E10
32.2SJ300-022LFU1554.0SJ300-040HFU/E15
53.7SJ300-037LFU207.55.5SJ300-055HFU/E15
7.55.5SJ300-055LFU30107.5SJ300-075HFU/E20
107.5SJ300-075LFU401511SJ300-110HFU/E30
1511SJ300-110LFU602015SJ300-150HFU/E40
2015SJ300-150LFU802518.5 SJ300-185HFU/E50
2518.5 SJ300-185LFU1003022SJ300-220HFU/E60
3022SJ300-220LFU1254030SJ300-300HFU/E70
4030SJ300-300LFU1505037SJ300-370HFU/E90
5037SJ300-370LFU1756045SJ300-450HFU/E125
6045SJ300-450LFU2257555SJ300-550HFU/E125
7555SJ300-550LFU25010075SJ300-750HFU/E175
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
Vo lt a ge
400V
Motor
Output
10.75 SJ300-007HFU/E10
12590SJ300-900HFU/E200
150110 SJ300-110HFU/E250
175132 SJ300-1320HFE300
200150 SJ300-1500HFU300
400V
Inverter Model
Ampere Rating
for Fuse or
Breaker
Wire Connectors
Motor Overload
Protection
WARNING: Field wiring connections must
be made by a UL Listed and CSA Certified
Terminal (ring lug)
Cable support
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.
Cable
Hitachi SJ300 inverters provide solid state motor overload protection, which depends on the
proper setting of the following parameters:
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: When two or more motors are connected to the inverter, they cannot be protected
by the electronic overload protection. Install an external thermal relay on each motor.
Table of Contents
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
Orientation to Inverter Features 2–2
Basic System Description 2–5
Step-by-Step Basic Installation 2–6
Powerup Test 2–21
Using the Front Panel Keypad 2–23
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 3–8
“A” Group: Standard Functions 3–9
“B” Group: Fine-Tuning Functions 3–29
“C” Group: Intelligent Terminal Functions 3–47
“H” Group: Motor Constants Functions 3–62
“P” Group: Expansion Card Functions 3–65
“U” Group: User-selectable Menu Functions 3–67
Programming Error Codes 3–68
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 4–11
Using Intelligent Output Terminals 4–42
Analog Input Operation 4–59
Analog Output Operation 4–62
Setting Motor Constants for Vector Control 4–65
PID Loop Operation 4–71
Configuring the Inverter for Multiple Motors 4–72
Model # convention update, page 1–5
Specs table, pages 1–6 to 1–10
Derating curves, pages 1–11 to 1–12
Dimension drawings, page 2–12
Update wire and fuse size table, pages 2–14, 2–15
Update terminal dimensions table, pages 2–16, 2–17
Update braking tables, pages 5–8, 5–12
Add function P044 to P049, page 3–66, pages C–15, C–16
Add programming error codes, pages 3–67, 3–68
Update keypad navigation map, pages 2–25, 3–4
Add Appendix D: CE-EMC Installation Guidelines
Moved Hitachi EMC Recommendations from page iv to D–4
Contents, Revisions, Index updates
Front cover update
2Added default terminal symbols to tables on 3–47, 3–53
Updated intelligent I/O wiring examples throughout Chapter 4 to
use default terminals or otherwise least-used terminals
Corrected alarm relay symbols in multiple pages in Chapter 4
Contents, Revisions, Index updates
Front cover update
3Updated company name on cover, contact page, nameplate photo
Corrected graphs on pages 3–29 and 3–43
Made a few minor edits throughout
August 2001NB613XA
December 2001NB613XB
May 2002NB613XC
Operation
Manual No.
4Corrected [FM] common terminal to [L] in Chapter 4 Analog
Input section
Updated wire and fuse sizes for larger horsepower models in
Safety section tables and Chapter 2 tables
Enhanced Chapter 5 text and diagrams for dynamic braking
Contents, Revisions, Index, Cover updates
5Minor miscellaneous edits
Revisions, Cover updates
6Minor miscellaneous edits
Revisions, Cover updates
7Minor miscellaneous edits
Revisions, Cover updates
8Minor miscellaneous edits
Revisions, Cover updates
9Minor miscellaneous edits
Revisions, Cover updates
10Minor miscellaneous edits
Revisions, Cover updates
August 2002NB613XD
March 2003NB613XE
March 2003NB613XF
July 2003NB613XG
December 2003NB613XH
February 2006NB613XI
September 2006NB613XJ
xviii
Contact Information
Hitachi America, Ltd.
Power and Industrial Division
50 Prospect Avenue
Tarrytown, NY 10591
U.S.A.
Phone: +1-914-631-0600
Fax: +1-914-631-3672
Hitachi Europe GmbH
Am Seestern 18
D-40547 Düsseldorf
Germany
Phone: +49-211-5283-0
Fax: +49-211-5283-649
Hitachi Asia (Hong Kong) Ltd.
7th Floor, North Tower
World Finance Centre, Harbour City
Canton Road, Tsimshatsui, Kowloon
Hong Kong
Phone: +852-2735-9218
Fax: +852-2735-6793
Hitachi Australia Ltd.
Level 3, 82 Waterloo Road
North Ryde, N.S.W. 2113
Australia
Phone: +61-2-9888-4100
Fax: +61-2-9888-4188
Hitachi Industrial Equipment Systems Co., Ltd.
AKS Building, 3, Kanda Neribei-cho
Chiyoda-ku, Tokyo, 101-0022
Japan
Phone: +81-3-4345-6910
Fax: +81-3-4345-6067
Hitachi Industrial Equipment Systems Co, Ltd.
Narashino Division
1-1, Higashi-Narashino 7-chome
Narashino-shi, Chiba 275-8611
Japan
Phone: +81-47-474-9921
Fax: +81-47-476-9517
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 information:
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.
Main FeaturesCongratulations on your purchase of an SJ300
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 SJ300 product line includes
more than twenty inverter models to cover motor
sizes from 1/2 horsepower to 200 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
Model SJ300-037HFU (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 0.4–11kW (1/2 to 15hp) have built-
in dynamic braking units
• 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
• CE compliance filters
• Additional factory I/O network interface cards
(to be announced)
Model SJ300-037HFE
(European version)
Expansion Card - Encoder Input
SJ300 Inverter
1–3
Digital Operator
Interface
Components
The SJ300 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 inverter 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
Introduction
Removable
Components
Geting Started
The SJ300 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)
SJ300 Inverter
1–5
Specifications
Label and Agency
Approvals
Regulatory agency approvals
The Hitachi SJ300 inverters have product specifications labels located on the front and the right
side of the housing, as pictured to the right. Be
sure to verify that the specifications on the labels
match your power source, motor, and application
safety requirements.
Specifications
Getting Started
Product Labels
Inverter model number
Motor capacity for this model
Power Input Rating:
frequency, voltage, phase, current
Output Rating:
frequency, voltage, current
Model Number
Convention
Manufacturing codes:
lot number, date, etc.
The model number for a specific inverter contains useful information about its operating
characteristics. Refer to the model number legend below:
Note that “General Specifications” on page 1–9 covers all SJ300 inverters, followed by
footnotes for all specifications tables. The 200V models in the upper table below (1/2 to 15 hp)
include internal dynamic braking units (see “
kW0.40.751.52.23.75.57.511
at 70% output6476102127179242312435
at 100% output7088125160235325425600
with motor one frame size down), 100% at 0 Hz (with feedback board)
internal res. only50%20%10%
with external res.200%160%100%80%70%
Dynamic Braking” on page 5–6).
19.1
Item200V Class Specifications, continued
SJ300, 200V models, U.S. version150LFU185LFU220LFU300LFU370LFU450LFU550LFU
with motor one frame size down), 100% at 0 Hz (with feedback board)
w/o braking unit10%
with braking unit30–200%25–170%25–150%55–110%45–90%35–75%30–60%
SJ300 Inverter
1–7
Tables for 400V
class inverters
Note that “General Specifications” on page 1–9 covers all SJ300 inverters, followed by
footnotes for all specifications tables. The 400V models in the upper table below (1 to 15 hp)
include internal dynamic braking units (see “
with motor one frame size down), 100% at 0 Hz (with feedback board)
w/o braking unit10%
with braking unit45–70%40–60%30–50%25–40%20–35%
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 C0911 (1984). 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
30kW to 55kW models to meet NEMA 1 rating.
SJ300 Inverter
1–9
General
The following table (continued on next page) applies to all SJ300 inverter models.
Specifications
ItemGeneral Specifications
Protective enclosure *1, *11IP20 (NEMA 1)
Control methodLine-to-line sine wave pulse-width modulation (PWM) control
Output frequency range *40.1 to 400 Hz
Frequency accuracyDigital command: ± 0.01% of the maximum frequency
Frequency setting resolutionDigital: ± 0.01 Hz; Analog: (max. frequency)/4000, [O] terminal: 12-bit 0 to 10V;
Volt./Freq. characteristic *5V/F optionally variable (30 to 400Hz base frequency), V/F control (constant torque,
Accessories Feedback PCBSJ-FB (vector control loop speed sensor)
Operator input devicesOPE–SRE (4-digit LED with potentiometer) / OPE–S (4-digit LED w/o potentiometer),
Temperature (*9)Operating (ambient): -10 to 50°C / Storage: -20 to 65°C
Humidity20 to 90% humidity (non-condensing)
Vibration *10
LocationAltitude 1,000 m or less, indoors (no corrosive gasses or dust)
Digital input PCBSJ-DG (4-digit BCD / 16-bit binary)
OthersEMI filters, input/output reactors, DC reactors, radio noise filters, braking resistors,
selection, manual torque boost value and freq. adjustment, 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),
deceleration and stop after power failure, AVR function, fuzzy accel/decel, auto-tuning
(on-line/off-line), high-torque multi-operation, automatic energy-saving operation
Models SJ300–900Hxx to 1320Hxx: 0.5 to 8 kHz
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
Optional: OPE-SR (4-digit LED with potentiometer, Japanese/English overlay),
SRW–0EX Multilingual operator with copy function (English, French, German, Italian,
Spanish, and Portuguese)
(0.6G), 10 to 55 Hz
2
(0.3G), 10 to 55 Hz
Signal RatingsDetailed ratings are in “Specifications of Control and Logic Connections” on page 4–9.
Signal / ContactRatings
Built-in power for inputs24VDC supply, 100 mA maximum