Fuji Electric FRENIC-Mini Operating Manual
Compact Inverter
Instruction Manual
Thank you for purchasing our FRENIC-Mini series of inverters.
• This product is designed to drive a three-phase inductio n motor. Read through this instru ction
manual and be familiar with the handling procedure for correct use.
• Improper handling might result in incorrect operation, a short life, or even a failure of this
product as well as the motor.
• Deliver this manual to the end user of this product. Keep this manual in a safe place until this
product is discarded.
• For how to use an optional device, refer to the instruction and installation manuals for that
optional device.
Fuji Electric Co., Ltd. INR-SI47-1205b-E
Fuji Electric Corp. of America
Copyright © 2002-2011 Fuji Electric Co., Ltd.
All rights reserved.
No part of this publication may be reproduced or copied without prior written permission from Fuji
Electric Co., Ltd.
All products and company names ment ioned in this manual are trademarks or registered trademarks
of their respective holders.
The information contained herein is subject to change without prior notice for improvement.
Preface
Thank you for purchasing our FRENIC-Mini series of inverters.
This product is designed to drive a three-phase induction motor. Read through this instruction ma-
nual and be familiar with proper handling and operation of this product.
Improper handling might result in incorrect operation, a short life, or even a failure of this product as
well as the motor.
Have this manual delivered to the end user of this product. Keep this manual in a safe place until this
product is discarded.
i
Safety precautions
Read this manual thoroughly before proceeding with installation, connections (wiring), operation, or
maintenance and inspection. Ensure you have sound knowledge of the device and familiarize
yourself with all safety information and precautions before proceeding to operate the inverter.
Safety precautions are classified into the following two categories in this manual.
Failure to heed the information indicated by this symbol may
lead to dangerous conditions, possibly resulting in death or
serious bodily injuries.
Failure to heed the information indicated by this symbol may
lead to dangerous conditions, possibly resulting in minor or
light bodily injuries and/or substantial property damage.
Failure to heed the information contained under the CAUTION title can also result in serious consequences. These safety precautions are of utmost importance and must be observed at all times.
Application
• FRENIC-Mini is designed to drive a three-phase induction motor. Do not use it for single-phase motors or for other purposes.
Fire or an accident could occur.
• FRENIC-Mini may not be used for a life-support system or other purposes directly related
to the human safety.
• Though FRENIC-Mini is manufactured under strict quality control, install safety devices for
applications where serious accidents or material losses are foreseen in relation to the
failure of it.
An accident could occur.
Installation
• Install the inverter on a nonflammable material such as metal.
Otherwise fire could occur.
• Do not place flammable matter nearby.
Doing so could cause fire.
ii
• Do not support the inverter by its terminal block cover during transportation.
Doing so could cause a drop of the inverter and injuries.
• Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from
getting into the inverter or from accumulating on the heat sink.
Otherwise, a fire or an accident might result.
• Do not install or operate an inverter that is damaged or lacking parts.
Doing so could cause fire, an accident or injuries.
• Do not get on a shipping box.
• Do not stack shipping boxes higher than the indicated information printed on those boxes.
Doing so could cause injuries.
Wiring
• When wiring the inverter to the power source, insert a recommended molded case circuit
breaker (MCCB) or residual-current-operated protective device (RCD)/a ground fault
circuit interrupter (GFCI) (with overcurrent protection) in the path of power lines. Use the
devices within the recommended current range.
• Use wires in the specified size.
• When wiring the inverter to the power supply of 500 kVA or more (50 kVA or more for the
single-phase 115 V class series of inverters), be sure to connect an optional DC reactor
(DCR).
Otherwise, fire could occur.
• Do not use one multicore cable in order to connect several inverters with motors.
• Do not connect a surge killer to the inverter's output (secondary) circuit.
Doing so could cause fire.
• Be sure to connect the grounding wires without fail.
Otherwise, electric shock or fire could occur.
• Qualified electricians should carry out wiring.
• Be sure to perform wiring after turning the power off.
• Ground the inverter following Class C or Class D specifications or national/local electric
code, depending on the input voltage of the inverter.
Otherwise, electric shock could occur.
• Be sure to perform wiring after installing the inverter body.
Otherwise, electric shock or injuries could occur.
• Ensure that the number of input phases and the rated voltage of the product match the
number of phases and the voltage of the AC power supply to which the product is to be
connected.
Otherwise fire or an accident could occur.
• Do not connect the power source wires to output terminals (U, V, and W).
• Do not insert a braking resistor between terminals P (+) and N (-), P1 and N (-), P (+) and
P1, DB and N (-), or P1 and DB.
Doing so could cause fire or an accident.
iii
• Generally, control signal wires are not reinforced insulation. If they accidentally touch any
of live parts in the main circuit, their insulation coat may break for any reasons. In such a
case, an extremely high voltage may be applied to the signal lines. Make a complete
remedy to protect the signal line from contacting any hot high voltage lines.
Doing so could cause an accident or electric shock.
• Wire the three-phase motor to terminals U, V, and W of the inverter, aligning phases each
other.
Otherwise injuries could occur.
• The inverter, motor and wiring generate electric noise. Take care of malfunction of the
nearby sensors and devices. To prevent the motor from malfunctioning, implement noise
control measures.
Otherwise an accident could occur.
Operation
• Be sure to install the terminal block cover before turning the power on. Do not remove the
cover while power is applied.
Otherwise electric shock could occur.
• Do not operate switches with wet hands.
Doing so could cause electric shock.
• If the retry function has been selected, the inverter may automatically restart and drive the
motor depending on the cause of tripping.
(Design the machinery or equipment so that human safety is ensured after restarting.)
• If the stall prevention function (current limiter), automatic deceleration, and overload
prevention control have been selected, the inverter may operate at an acceleration/deceleration time or frequency different from the set ones. Design the machine so that
safety is ensured even in such cases.
Otherwise an accident could occur.
• The STOP key is only effective when function setting (Function code F02) has been established to enable the STOP key. Prepare an emergency stop switch separately. If you
disable the STOP key priority function and enable operation by external commands, you
cannot emergency-stop the inverter using the STOP key on the built-in keypad.
• If an alarm reset is made with the operation signal turned on, a sudden start will occur.
Ensure that the operation signal is turned off in advance.
Otherwise an accident could occur.
iv
• If you enable the "restart mode after momentary power failure" (Function code F14 = 4 or
5), then the inverter automatically restarts running the motor when the power is recovered.
(Design the machinery or equipment so that human safety is ensured after restarting.)
• If you set the function codes wrongly or without completely understanding this instruction
manual and the FRENIC-Mini User's Manual, the motor may rotate with a torque or at a
speed not permitted for the machine.
An accident or injuries could occur.
• Do not touch the inverter terminals while the power is applied to the inverter even if the
inverter stops.
Doing so could cause electric shock.
• Do not turn the main circuit power on or off in order to start or stop inverter operation.
Doing so could cause failure.
• Do not touch the heat sink or braking resistor because they become very hot.
Doing so could cause burns.
• Setting the inverter to high speeds is easy. Before changing the frequency (speed) setting,
check the specifications of the motor and machinery.
• The brake function of the inverter does not provide mechanical holding means.
Injuries could occur.
Wiring length for EMC filter built-in type
• When the wiring length between the inverter and motor exceeds 33ft(10 m), the filter
circuit may be overheated and damaged due to increase of leakage current. To reduce the
leakage current, set the motor sound (carrier frequency) to 2 kHz or below with function
code F26.
Otherwise a failure could occur.
Installation and wiring of an option card
• Before installing an RS-485 Communications Card, turn off the power, wait more than five
minutes, and make sure, using a circuit tester or a similar instrument, that the DC link bus
voltage between the terminals P (+) and N (-) has dropped below a safe voltage (+25
VDC).
• Do not remove the terminal cover for the control circuits while power is applied, because
high voltage lines exist on the RS-485 Communications Card.
Failure to observe these precautions could cause electric shock.
v
• In general, sheaths and covers of the control signal cables and wires are not specifically
designed to withstand a high electric field (i.e., reinforced insulation is not applied).
Therefore, if a control signal cable or wire comes into direct contact with a live conductor of
the main circuit, the insulation of the sheath or the cover might break down, which would
expose the signal wire to a high voltage of the main circuit. Make sure that the control
signal cables and wires will not come into contact with live conductors of the main circuits.
Failure to observe these precautions could cause electric shock and/or an acci-
dent.
Maintenance and inspection, and parts replacement
• Turn the power off and wait for at least five minutes before starting inspection. Further,
check that the LED monitor is unlit, and check the DC link bus voltage between the P (+)
and N (-) terminals to be lower than 25 VDC.
Otherwise, electric shock could occur.
• Maintenance, inspection, and parts replacement should be made only by qualified persons.
• Take off the watch, rings and other metallic matter before starting work.
• Use insulated tools.
Otherwise, electric shock or injuries could occur.
Disposal
• Handle the inverter as an industrial waste when disposing of it.
Otherwise injuries could occur.
Others
• Never attempt to modify the inverter.
Doing so could cause electric shock or injuries.
GENERAL PRECAUTIONS
Drawings in this manual may be illustrated without covers or safety shields for explanation of
detail parts. Restore the covers and shields in the original state and observe the description in
the manual before starting operation.
vi
Conformity to the Low Voltage Directive in the EU
If installed according to the guidelines given below, inverters marked with CE or TÜV are considered
as compliant with the Low Voltage Directive 2006/95/EC.
1. The ground terminal G should always be connected to the ground. Do not use only a
residual-current-operated protective device (RCD)/a ground fault circuit interrupter(GFCI)*
as the sole method of electric shock protection. Be sure to use ground wires whose size is
greater than power supply lines.
* With overcurrent protection.
2. When used with the inverter, a molded case circuit breaker (MCCB), residual-current-operated protective device (RCD)/ a ground fault circuit interrupter(GFCI) or
magnetic contactor (MC) should conform to the EN or IEC standards.
3. When you use a residual-current-operated protective device (RCD)/ a ground fault circuit
interrupter(GFCI) for protection from electric shock in direct or indirect contact power lines
or nodes, be sure to install type B of RCD/GFCI on the input (primary) of the inverter if the
power source is three-phase 230/460 V. For single-phase 230 V power supplies, use type
A.
When you use no RCD/GFCI, take any other protective measure that isolates the electric
equipment from other equipment on the same power supply line using double or reinforced
insulation or that isolates the power supply lines connected to the electric equipment using
an isolation transformer.
4. The inverter should be used in an environment that does not exceed Pollution Degree 2
requirements. If the environment conforms to Pollution Degree 3 or 4, install the inverter in
an enclosure of IP54 or higher.
5. Install the inverter, AC or DC reactor, input or output filter in an enclosure with minimum
degree of protection of IP2X (Top surface of enclosure shall be minimum IP4X when it can
be easily accessed), to prevent human body from touching directly to live parts of these
equipment.
6. To make an inverter with no integrated EMC filter conform to the EMC directive, it is necessary to connect an external EMC filter to the inverter and install them properly so that the
entire equipment including the inverter conforms to the EMC directive.
7. Do not connect any copper wire directly to grounding terminals. Use crimp terminals with tin
or equivalent plating to connect them.
8. To connect the three-phase or single-phase 230 V class series of inverters to the power
supply in Overvoltage Category III or to connect the three-phase 460 V class series of inverters to the power supply in Overvoltage Category II or III, a supplementary insulation is
required for the control circuitry.
9. When using inverters at an altitude of more than 6600ft(2000m), note that the basic insulation applies to the insulation degree of the control circuitry. At an altitude of more than
9900ft(3000m), inverters cannot be used.
10. The power supply mains neutral has to be earthed for the three-phase 460 V class inverter.
vii
2
*2
Inverter
Braking
*3
*3
Conformity to the Low Voltage Directive in the EU (Continued)
11. Use wires listed in IEC60364-5-52.
Applicable
motor
rating
Power supply voltage
1/8 FRNF12C1-2U
1/4 FRNF25C1-2U
1/2 FRNF50C1-2U
1 FRN001C1-2U 10
2 FRN002C1-2U
3 FRN003C1-2U 20
Three-phase 230 V
5 FRN005C1-2U 20 35 4 4
1/2 FRNF50C1-4U
1 FRN001C1-4U
2 FRN002C1-4U 10
3 FRN003C1-4U
5 FRN005C1-4U 20
Three-phase 460 V
1/8 FRNF12C1-7U
1/4 FRNF25C1-7U
1/2 FRNF50C1-7U 10
1 FRN001C1-7U 10 16
2 FRN002C1-7U 16 20 4
Single-phase 230 V
3 FRN003C1-7U 20 35 4 6 4
Notes 1) A box () in the above table replaces S or E depending on the enclosure.
*1 The frame size and model of the MCCB or RCD/GFCI (with overcurrent protection) will vary, de-
pending on the power transformer capacity. Refer to the related technical documentation for details.
*2 The recommended wire size for main circuits is for the 70C(158°F) 600V PVC wires used at an
ambient temperature of 40C(104°F).
*3 In the case of no DC reactor, the wire sizes are determined on the basis of the effective input
current calculated under the condition that the power supply capacity and impedance are 500 kVA
and 5%, respectively.
Inverter type
(HP)
Rated current (A)
MCCB or RCD/GFCI
w/ DCR
6
10
6
10
6
*1
of
w/o DCR
6
16
6
16
6
MCCB: Molded case circuit breaker
RCD: Residual-current-operated protective device
GFCI: Ground fault circuit interrupter
Recommended wire size (mm
Main circuit
power input
[L1/R, L2/S, L3/T]
[L1/L, L2/N]
Grounding [ G]
w/ DCR
2.5
2.5 2.5 2.5 2.5 0.5
2.5
*2
w/o DCR
2.5 2.5
2.5
output
[U, V,
W]
2.5
resistor
DCR
[P1,
P (+)]
[P (+),
DB]
2.5 0.5
2.5
*2
)
Control
circuit
(30A,
30B,
30C)
0.5
viii
Power
voltage
FRN0.1C1
-2
FRN0.2C1
-2
FRN0.4C1
-2
FRN0.75C1
-2
FRN1.5C1
-2**
FRN2.2C1
-2**
FRN3.7C1
-2**
FRN0.4C1
-4
FRN0.75C1-4
FRN1.5C1
-4**
FRN2.2C1
-4**
FRN0.1C1-7
FRN0.2C1
-7
FRN0.4C1
-7
FRN0.75C1
-7
FRN1.5C1
-7
FRN2.2C1
-7
FRN0.1C1
-6
Conformity to UL standards and Canadian standards (cUL certification)
If installed according to the guidelines given below, inverters marked with UL/cUL are considered as
compliant with the UL and CSA (cUL certified) standards.
UL/cUL-listed inverters are subject to the regulations set forth by the UL standards and CSA
standards (cUL-listed for Canada) by installation within precautions listed below.
1. Solid state motor overload protection (motor protection by electronic thermal overload relay)
is provided in each model.
Use function codes F10 to F12 to set the protection level.
2. Connect the power supply satisfying the characteristics shown in the table below as an input
power supply of the inverter.(Short circuit rating)
3. Use 75C Cu wire only.
4. Use Class 1 wire only for control circuits.
5. Field wiring connections must be made by a UL Listed and CSA Certified closed-loop ter-
minal connector sized for the wire gauge involved. Connector must be fixed using the crimp
tool specified by the connector manufacturer.
Short circuit rating
Suitable for use on a circuit capable of delivering not more than B rms symmetrical amperes, A
volts maximum when protected by class J Fuse or a Circuit Breaker having an interrupting
rating not less than B rms symmetrical amperes, A volts maximum.
supply
Inverter type Power supply max. voltage A Power supply current B
200V
phase
Three-
240 VAC 100,000 A or less
400V
phase
Three-
FRN3.7C1-4**
FRN4.0C1-4**
480 VAC 100,000 A or less
200V
phase
Single-
240 VAC 100,000 A or less
FRN0.2C1-6
FRN0.4C1-6
100V
phase
Single-
Notes 1) A box () in the above table replaces S or E depending on the enclosure.
FRN0.75C1-6
120 VAC 65,000 A or less
ix
*2
*1
*2
Conformity to UL standards and Canadian standards (cUL certification) (Continued)
6. Install UL certified fuses between the power supply and the inverter, referring to the table
below.
Required torque
Main
terminal
10.6
(1.2)
15.9
(1.8)
15.9
(1.8)
10.6
(1.2)
15.9
(1.8)
10.6
(1.2)
Ib-in (N·m)
Control circuit
*1
TERM1
3.5
(0.4)
3.5
(0.4)
3.5
(0.4)
3.5
(0.4)
TERM2-1
TERM2-2
1.8
(0.2)
1.8
(0.2)
1.8
(0.2)
1.8
(0.2)
x
Power
supply
voltage
Inverter type
FRNF12C1-2U
FRNF25C1-2U
FRNF50C1-2U
FRN001C1-2U
230V
FRN002C1-2U
Three-phase
FRN003C1-2U
FRN005C1-2U
FRNF50C1-4U
FRN001C1-4U
FRN002C1-4U
460V
FRN003C1-4U
Three-phase
FRN005C1-4U
FRNF12C1-7U
FRNF25C1-7U
FRNF50C1-7U
230V
FRN001C1-7U
Single-phase
FRN002C1-7U
FRN003C1-7U
FRNF12C1-6U
FRNF25C1-6U
115V
FRNF50C1-6U
Single-phase
FRN001C1-6U
Notes 1) A box () in the above table replaces S or E depending on the enclosure.
*1 Denotes the relay contact terminals for [30A], [30B] and [30C].
*2 Denotes control terminals except for [30A], [30B] and [30C].
Integral solid state short circuit protection does not provide branch circuit protection.
Branch circuit protection must be provided in accordance with the National Electrical Code and any
additional local codes.
Wire size
AWG or kcmil (ｍｍ2)
Control circuit
Main
terminal
TERM1
14
(2.0)
10(5.5)
14
(2.0)
14
(2.0)
10(5.5)
14
(2.0)
20
(0.5)
20
(0.5)
20
(0.5)
20
(0.5)
TERM2-1
TERM2-2
10 5
15 10
20 15
30 20
40 30
10 10
15 15
20 20
10 10
15 15
30 20
40 30
10 10
15 15
30 20
current (A)
Class J fuse
3 5
6 5
3 5
6 5
6 5
6 5
6 5
Circuit Breaker
Trip Size（A）
Precautions for use
Driving a 460 V
general-purpose
motor
Torque characteristics and temperature rise
In running
generalpurpose
motors
Vibration
Noise
High-speed motors
Explosion-proof
motors
In running
special motors
Submersible motors and pumps
Brake motors
When driving a 460 V general-purpose motor with an inverter
using extremely long wires, damage to the insulation of the
motor may occur. Use an output circuit filter (OFL) if necessary after checking with the motor manufacturer. Fuji motors
do not require the use of output circuit filters because of their
good insulation.
When the inverter is used to run a general-purpose motor, the
temperature of the motor becomes higher than when it is
operated using a commercial power supply. In the low-speed
range, the cooling effect will be weakened, so decrease the
output torque of the motor. If constant torque is required in the
low-speed range, use a Fuji inverter motor or a motor
equipped with an externally powered ventilating fan.
When an inverter-driven motor is mounted to a machine,
resonance may be caused by the natural frequencies of the
machine system.
Note that operation of a 2-pole motor at 60 Hz or higher may
cause abnormal vibration.
* The use of a rubber coupling or vibration dampening rubber
is recommended.
* Use the inverter's jump frequency control feature to skip the
resonance frequency zone(s).
When an inverter is used with a general-purpose motor, the
motor noise level is higher than that with a commercial power
supply. To reduce noise, raise carrier frequency of the inverter. Operation at 60 Hz or higher can also result in higher
noise level.
If the reference frequency is set to 120 Hz or more to drive a
high-speed motor, test-run the combination of the inverter
and motor beforehand to check for safe operation.
When driving an explosion-proof motor with an inverter, use a
combination of a motor and an inverter that has been approved in advance.
These motors have a larger rated current than general-purpose motors. Select an inverter whose rated output
current is greater than that of the motor.
These motors differ from general-purpose motors in thermal
characteristics. Set a low value in the thermal time constant
of the motor when setting the electronic thermal function.
For motors equipped with parallel-connected brakes, their
braking power must be supplied from the input (primary)
circuit. If the brake power is connected to the inverter's output
(secondary) circuit by mistake, the brake will not work.
Do not use inverters for driving motors equipped with series-connected brakes.
xi
e a
In running
special
motors
Environmental conditions
Combination with
peripheral
devices
Geared motors
Synchronous motors
Single-phase
motors
Installation location
Installing an
MCCB or
RCD/GFCI
Installing an MC
in the secondary
circuit
Installing an MC
in the primary
circuit
Protecting the
motor
If the power transmission mechanism uses an oil-lubricated
gearbox or speed changer/reducer, then continuous motor
operation at low speed may cause poor lubrication. Avoid
such operation.
It is necessary to take special measures suitable for this
motor type. Contact your Fuji Electric representative for details.
Single-phase motors are not suitable for inverter-driven variable speed operation. Use three-phase motors.
* Even if a single-phase power supply is available, us
three-phase motor as the inverter provides three-phase
output.
Use the inverter within the ambient temperature range from
-10 to +50C(14 to 122°F).
The heat sink and braking resistor of the inverter may be-
come hot under certain operating conditions, so install the
inverter on nonflammable material such as metal.
Ensure that the installation location meets the environmental
conditions specified in Chapter 2, Section 2.1 "Operating
Environment."
Install a recommended molded case circuit breaker (MCCB)
or residual-current-operated protective device (RCD)/a
ground fault circuit interrupter(GFCI)(with overcurrent protection) in the input (primary) circuit of the inverter to protect
the wiring. Ensure that the circuit breaker capacity is equivalent to or lower than the recommended capacity.
If a magnetic contactor (MC) is mounted in the inverter's
secondary circuit for switching the motor to commercial
power or for any other purpose, ensure that both the inverter
and the motor are completely stopped before you turn the MC
on or off.
Do not connect a magnet contactor united with a surge killer
to the inverter's secondary circuit.
Do not turn the magnetic contactor (MC) in the input (primary)
circuit on or off more than once an hour as an inverter failure
may result.
If frequent starts or stops are required during motor operation, use FWD/REV signals or the / keys.
The electronic thermal function of the inverter can protect the
motor. The operation level and the motor type (general-purpose motor, inverter motor) should be set. For
high-speed motors or water-cooled motors, set a small value
for the thermal time constant and protect the motor.
If you connect the motor thermal relay to the motor with a long
wire, a high-frequency current may flow into the wiring stray
capacitance. This may cause the relay to trip at a current
lower than the set value for the thermal relay. If this happens,
lower the carrier frequency or use the output circuit filter
(OFL).
xii
Combination with
peripheral
devices
Wiring
Selecting
inverter
capacity
Transportation and
storage
Discontinuance
of power-factor
correcting capacitor
Discontinuance
of surge killer
Reducing noise
Do not mount power-factor correcting capacitors in the inverter’s primary circuit. (Use the DC reactor to improve the
inverter power factor.) Do not use power-factor correcting
capacitors in the inverter output circuit. An overcurrent trip will
occur, disabling motor operation.
Do not connect a surge killer to the inverter's secondary
circuit.
Use of a filter and shielded wires is typically recommended to
satisfy EMC directives.
If an overvoltage trip occurs while the inverter is stopped or
Measures against
surge currents
operated under a light load, it is assumed that the surge
current is generated by open/close of the phase-advancing
capacitor in the power system.
* Connect a DC reactor to the inverter.
Megger test
When checking the insulation resistance of the inverter, use a
500 V megger and follow the instructions contained in
Chapter 7, Section 7.4 "Insulation Test."
Control circuit
wiring length
When using remote control, limit the wiring length between
the inverter and operator box to 65ft (20m) or less and use
twisted pair or shielded cable.
If long wiring is used between the inverter and the motor, the
Wiring length
between inverter
and motor
inverter will overheat or trip as a result of overcurrent
(high-frequency current flowing into the stray capacitance) in
the wires connected to the phases. Ensure that the wiring is
shorter than 164ft (50m). If this length must be exceeded,
lower the carrier frequency or mount an output circuit filter
(OFL).
Wiring size
Wiring type
Select wires with a sufficient capacity by referring to the
current value or recommended wire size.
Do not use one multicore cable in order to connect several
inverters with motors.
Grounding Securely ground the inverter using the grounding terminal.
Select an inverter according to the nominal applied motor
Driving general-purpose motor
Driving special
motors
When exporting an inverter built in a panel or equipment, pack them in a previously
fumigated wooden crate. Do not fumigate them after packing since some parts
listed in the standard specifications table for the inverter.
When high starting torque is required or quick acceleration or
deceleration is required, select an inverter with a capacity
one size greater than the standard.
Select an inverter that meets the following condition:
Inverter rated current > Motor rated current
inside the inverter may be corroded by halogen compounds such as methyl bromide used in fumigation.
When packing an inverter alone for export, use a laminated veneer lumber (LVL).
For other transportation and storage instructions, see Chapter 1, Section 1.3
"Transportation" and Section 1.4 "Storage Environment."
xiii
How this manual is organized
This manual is made up of chapters 1 through 11.
Chapter 1 BEFORE USING THE INVERTER
This chapter describes acceptance inspection and precautions for transportation and storage of the
inverter.
Chapter 2 MOUNTING AND WIRING OF THE INVERTER
This chapter provides operating environment, precautions for installing the inverter, wiring instructions for the motor and inverter.
Chapter 3 OPERATION USING THE KEYPAD
This chapter describes inverter operation using the keypad. The inverter features three operation
modes (Running, Programming and Alarm modes) which enable you to run and stop the motor,
monitor running status, set function code data, display running information required for maintenance,
and display alarm data.
Chapter 4 OPERATION
This chapter describes preparation to be made before running the motor for a test and practical
operation.
Chapter 5 FUNCTION CODES
This chapter provides a list of the function codes. Function codes to be used often and irregular ones
are described individually.
Chapter 6 TROUBLESHOOTING
This chapter describes troubleshooting procedures to be followed when the inverter malfunctions or
detects an alarm condition. In this chapter, first check whether any alarm code is displayed or not,
and then proceed to the troubleshooting items.
Chapter 7 MAINTENANCE AND INSPECTION
This chapter describes inspection, measurement and insulation test which are required for safe
inverter operation. It also provides information about periodical replacement parts and guarantee of
the product.
Chapter 8 SPECIFICATIONS
This chapter lists specifications including output ratings, control system, external dimensions and
protective functions.
Chapter 9 LIST OF PERIPHERAL EQUIPMENT AND OPTIONS
This chapter describes main peripheral equipment and options which can be connected to the
FRENIC-Mini series of inverters.
Chapter 10 APPLICATION OF DC REACTOR (DCRs)
This chapter describes a DC reactor that suppresses input harmonic component current.
Chapter 11 COMPLIANCE WITH STANDARDS
This chapter describes standards with which the FRENIC-Mini series of inverters comply.
xiv
This icon indicates information which, if not heeded, can result in the inverter not operating
to full efficiency, as well as information concerning incorrect operations and settings which
handy when performing certain settings or
Icons
The following icons are used throughout this manual.
can result in accidents.
This icon indicates information that can prove
operations.
This icon indicates a reference to more detailed information.
xv
Table of Contents
Preface ............................................................ i
Safety precautions ................................................. ii
Precautions for use .............................................. xi
How this manual is organized ................................ xiv
Chapter 1 BEFORE USING THE INVERTER ..... 1-1
1.1 Acceptance Inspection ............................... 1-1
1.2 External View and Terminal Blocks ............ 1-2
1.3 Transportation ............................................ 1-2
1.4 Storage Environment ................................. 1-3
1.4.1 Temporary storage ............................ 1-3
1.4.2 Long-term storage ............................. 1-3
Chapter 2 MOUNTING AND WIRING OF THE IN-
Chapter 3 OPERATION USING THE KEYPAD ... 3-1
VERTER ............................................. 2-1
2.1 Operating Environment .............................. 2-1
2.2 Installing the Inverter .................................. 2-1
2.3 Wiring......................................................... 2-2
2.3.1 Removing the terminal block (TB)
covers ............................................... 2-2
2.3.2 Terminal arrangement and screw
specifications..................................... 2-3
2.3.3 Recommended wire sizes ................. 2-4
2.3.4 Wiring precautions ............................ 2-6
2.3.5 Wiring for main circuit terminals and
grounding terminals ........................... 2-7
2.3.6 Replacing the main circuit terminal
block (TB) cover .............................. 2-13
2.3.7 Wiring for control circuit terminals ... 2-14
2.3.8 Switching of SINK/SOURCE
(jumper switch) ................................ 2-21
2.3.9 Installing an RS-485 communications
card (option) .................................... 2-21
2.3.10 Replacing the control circuit terminal
block (TB) cover .............................. 2-22
2.3.11 Cautions relating to harmonic
component, noise, and leakage
current ............................................. 2-23
3.1 Keys, Potentiometer, and LED on the
Keypad ....................................................... 3-1
3.2 Overview of Operation Modes ................... 3-2
3.2.1 Running mode ................................... 3-4
[ 1 ] Monitoring the running status ......... 3-4
[ 2 ] Setting up frequency, etc................ 3-6
[ 3 ] Running/stopping the motor ........... 3-9
[ 4 ] Jogging (inching) the motor ......... 3-10
3.2.2 Programming mode .......................... 3-11
[ 1 ] Setting function codes
– "Data Setting" ............................ 3-13
[ 2 ] Checking changed function codes
– "Data Checking" ........................ 3-17
[ 3 ] Monitoring the running status
– "Drive Monitoring" ..................... 3-19
[ 4 ] Checking I/O signal status
– "I/O Checking" ........................... 3-23
[ 5 ] Reading maintenance information
– "Maintenance Information" ........ 3-27
[ 6 ] Reading alarm information
– "Alarm Information" ................... 3-29
3.2.3 Alarm mode ..................................... 3-32
Chapter 4 RUNNING THE MOTOR ..................... 4-1
4.1 Running the Motor for a Test ...................... 4-1
4.1.1 Inspection and preparation prior to
the operation ...................................... 4-1
4.1.2 Turning on power and checking ......... 4-1
4.1.3 Preparation before running the
motor for a test--Setting function
code data ........................................... 4-2
4.1.4 Test run .............................................. 4-3
4.2 Operation.................................................... 4-3
Chapter 5 FUNCTION CODES ............................ 5-1
5.1 Function Code Tables ................................. 5-1
5.2 Overview of Function Codes .................... 5-13
Chapter 6 TROUBLESHOOTING ........................ 6-1
6.1 Before Proceeding with Troubleshooting .... 6-1
6.2 If No Alarm Code Appears on the LED
Monitor ....................................................... 6-3
6.2.1 Motor is running abnormally .............. 6-3
6.2.2 Problems with inverter settings .......... 6-8
6.3 If an Alarm Code Appears on the LED
Monitor ....................................................... 6-9
6.4 If an Abnormal Pattern Appears on the
LED Monitor while No Alarm Code is
Displayed.................................................. 6-19
Chapter 7 MAINTENANCE AND INSPECTION ... 7-1
7.1 Daily Inspection .......................................... 7-1
7.2 Periodic Inspection ..................................... 7-1
7.3 Measurement of Electrical Amounts in
Main Circuit ................................................ 7-6
7.4 Insulation Test ............................................ 7-7
7.5 List of Periodical Replacement Parts .......... 7-8
7.6 Inquiries about Product and Guarantee ...... 7-8
7.6.1 When making an inquiry .................... 7-8
7.6.2 Product warranty................................ 7-8
Chapter 8 SPECIFICATIONS .............................. 8-1
8.1 Standard Models ........................................ 8-1
8.1.1 Three-phase 230 V class series ........ 8-1
8.1.2 Three-phase 460 V class series ........ 8-2
8.1.3 Single-phase 230 V class series ........ 8-3
8.1.4 Single-phase 115 V class series ........ 8-4
8.2 Models Available on Order ......................... 8-5
8.2.1 EMC filter built-in type ........................ 8-5
8.3 Common Specifications .............................. 8-6
8.4 Terminal Specifications ............................... 8-8
8.4.1 Terminal functions .............................. 8-8
8.4.2 Connection diagram in operation by
external signal inputs ......................... 8-8
8.5 External Dimensions................................. 8-10
8.5.1 Standard models .............................. 8-10
8.5.2 Models available on order
(EMC filter built-in type) ................... 8-12
8.6 Protective Functions ................................. 8-14
Chapter 9 LIST OF PERIPHERAL EQUIPMENT
Chapter 10 APPLICATION OF DC REACTORS
AND OPTIONS ................................... 9-1
(DCRs) .............................................. 10-1
xvi
Chapter 11 COMPLIANCE WITH STANDARDS ..11-1
11.1 Compliance with UL Standards and
Canadian Standards (cUL certification) .....11-1
11.1.1 General ............................................11-1
11.1.2 Considerations when using
FRENIC-Mini in systems to be
certified by UL and cUL ....................11-1
11.2 Compliance with European Standards ......11-1
11.3 Compliance with EMC Standards ..............11-2
11.3.1 General ............................................11-2
11.3.2 Recommended installation
procedure .........................................11-2
11.3.3 Leakage current of EMC-filter built-in
type inverter and outboard
EMC-complaint filter .........................11-5
11.4 Harmonic Component Regulation
in the EU ...................................................11-7
11.4.1 General comments ...........................11-7
11.4.2 Compliance with the harmonic
component regulation .......................11-8
11.5 Compliance with the Low Voltage
Directive in the EU ....................................11-8
11.5.1 General ............................................11-8
11.5.2 Points for consideration when using
the FRENIC-Mini series in a system
to be certified by the Low Voltage
Directive in the EU............................11-8
xvii
Chapter 1 BEFORE USING THE INVERTER
1.1 Acceptance Inspection
Unpack the package and check that:
(1) An inverter and instruction manual (this manual) is contained in the package.
(2) The inverter has not been damaged during transportation—there should be no dents or parts
missing.
(3) The inverter is the model you ordered . You can check the model name and specifications on the
main nameplate. (Main and sub nameplates are attached to the inverter and are located as
shown on the following page.)
(a) Main Nameplate (b) Sub Nameplate
Figure 1.1 Nameplates
TYPE: Type of inverter
SOURCE: Number of input phases (three-phase: 3PH, single-phase: 1PH), input voltage, input
frequency, input current
OUTPUT: Number of output phases, rated output capacity, rated output voltage, output
frequency range, rated output current, overload capacity
SER. No.: Product number manufacturing date
W 0 5 A 1 2 3 A 0 0 0 1 Z 0 1 9
Production year: Last digit of year
Production week
This indicates the week number that is numbered
from 1st week of January.
The 1st week of January is indicated as '01'.
If you suspect the product is not working properly or if you have any questions about your product,
contact your Fuji Electric representative.
1-1
)
wire
nameplate
1.2 External View and Terminal Blocks
(1) External views
Keypad
Control circuit
terminal block
cover
Sub
Main
nameplate
Control circuit
terminal bock cover
Main circuit
terminal block
cover
Main
nameplate
Figure 1.2 External Views of FRENIC-Mini
(2) View of terminals
Barrier for the RS-485
communications port*
Control signal cable port
DB, P1, P (+) and N (-) wire port
L1/R, L2/S, L3/T, U, V, W,
grounding wire port
L1/R, L2/S, L3/T, P1, P (+), N (-
port
Heat
sink
(a) FRN001C1S-2U (b) FRN002C1S-2U
DB, U, V, W,
grounding wire port
(* When connecting the RS-485 communications cable, remove the control
circuit terminal block cover and cut off the barrier provided in it using nippers.)
Cooling
fan
Figure 1.3 Bottom View of FRENIC-Mini
1.3 Transportation
• When carrying the inverter, always support its bottom at the front and rear sides with both hands.
Do not hold covers or individual parts only. You may drop the inverter or break it.
• Avoid applying excessively strong force to the terminal block covers as they are made of plastic
and are easily broken.
1-2
1.4 Storage Environment
1.4.1 Temporary storage
Store the inverter in an environment that satisfies the requirements listed in Table 1.1.
Table 1.1 Environmental Requirements for Storage and Transportation
Item Requirements
Storage
temperature
Relative
humidity
Atmosphere The inverter must not be exposed to dust, direct sunlight, corrosive or flammable
Atmospheric
pressure
1
*
Assuming a comparatively short storage period (e.g., during transportation or the like).
2
*
Even if the humidity is within the specified requirements, avoid such places where the inverter will be
subjected to sudden changes in temperature that will cause condensation to form.
Precautions for temporary storage
(1) Do not leave the inverter directly on the floor.
(2) If the environment does not satisfy the specified requirements, wrap the inverter in an airtight
vinyl sheet or the like for storage.
(3) If the inverter is to be stored in an environment with a high level of humidity, put a drying agent
(such as silica gel) in the airtight package described in item (2).
-25 to +70℃(-4 to +158°F)
1
*
5 to 95%
gases, oil mist, vapor, water drops or vibration. The atmosphere can contain only a
low level of salt. (0.01 mg/cm2 or less per year)
86 to 106 kPa (in storage)
70 to 106 kPa (during transportation)
2
*
Locations where the inverter is not
subject to abrupt changes in
temperature that would result in the
formation of condensation or ice.
1.4.2 Long-term storage
The long-term storage methods for the inverter vary largely according to the environment of the
storage site. General storage methods are described below.
(1) The storage site must satisfy the requirements specified for temporary storage.
However, for storage exceeding three months, the ambient temperature should be within the
range from -10 to +30 °C (14 to 86°F) .This is to prevent the electrolytic capacitors in the inverter
from deteriorating.
(2) The inverter must be stored in a package that is airtight to protect it from moisture. Include a
drying agent inside the package to maintain the relative humidity inside the package to within
70%.
(3) If the inverter has been installed in the equipment or control board at a construction site where it
may be subjected to humidity, dust or dirt, then remove the inverter and store it in a suitable
environment specified in Table 1.1.
Precautions for storage over 1 year
If the inverter will not be powered on for a long time, the property of the electrolytic capacitors may
deteriorate. Power the inverters on once a year and keep them on for 30 to 60 minutes. Do not
connect the inverters to motors or run the motor.
1-3
9.8 m/s2 9
to less than
20 Hz 2 m/s2 20
to less than
55 Hz
1 m/s2 55
to less than
200 Hz
n of the
, so the inverter should be mounted on a
in
are maintained at all times. W hen
,
as
the temperature around the inverter tends to
side
without any gap between them or the NEMA1 kit
option is mounted on the inverter, the ambient
10 to
exposed to cotton waste
or moist dust or dirt which will clog the heat sink in
the inverter. If the inverter is to be used in such an
of your system
n altitude
output
Chapter 2 MOUNTING AND WIRING OF THE INVERTER
2.1 Operating Environment
Install the inverter in an environment that satisfies the requirements listed in Table 2.1.
Table 2.1 Environmental Requirements
Item Specifications
Site location Indoors
Ambient
temperature
Relative
humidity
Atmosphere The inverter must not be exposed to dust,
-10 to +50C(14 to 122°F)
(Note 1)
5 to 95% (No condensation)
direct sunlight, corrosive gases, flammable
gas, oil mist, vapor or water drops.
The atmosphere can contain only a low level
of salt.
(Note 2)
(0.01 mg/cm2 or less per year)
The inverter must not be subjected to sudden
changes in temperature that will cause
condensation to form.
Altitude 3300ft (1000m) max.
Atmospheric
pressure
86 to 106 kPa
(Note 3)
Vibration 3 mm (Max. amplitude) 2 to less than 9 Hz
2.2 Installing the Inverter
(1) Mounting base
The temperature of the heat sink will rise up to
approx. 90°C(194°F) during operatio
inverter
base made of material that can withstand temperatures of this level.
Install the inverter on a base made of metal or
other non-flammable material.
A fire may result with other material.
(2) Clearances
Ensure that the minimum clearances indicated
Figure 2.1
installing the inverter in the panel of your system
take extra care with ventilation inside the panel
Table 2.2 Output Current Derating Factor in
Relation to Altitude
Altitude
3300ft (1000m) or lower
3300-4900ft (1000 to 1500m)
4900-6600ft(1500 to 2000m)
6600-8200ft(2000 to 2500m)
8200-9900ft(2500 to 3000m)
(Note 1) When inverters are mounted side-by-
temperature should be within the range from +40C (14 to 104°F) .
(Note 2) Do not install the inverter in an environment where it may be
environment, install it in the panel
or other dustproof containers.
(Note 3) If you use the inverter in a
above 3300ft (1000m), you should apply an
current derating factor as listed in Table 2.2.
Top 4in.(100mm)
Left
0.4in.
(10mm)
Bottom 4in.(100mm)
Right
(10mm)
Output cur-
rent derating
0.4in.
factor
1.00
0.97
0.95
0.91
0.88
increase.
Figure 2.1 Mounting Direction and
Required Clearances
2-1
Do not mount
the inverter upside
down or
horizontally
. Doing so
will reduce the heat
,
When mounting two or more inverters
When mounting two or more inverters in the same unit or panel, basically lay them out side by side.
As long as the ambient temperature is 40°C(104°F) or lower, inverters can be mounted side by side
without any clearance between them. When mounting the inverters necessarily, one above the other,
be sure to separate them with a partition plate or the like so that any heat radiating from an inverter
will not affect the one(s) above.
(3) Mounting direction
Secure the inverter to the mounting base with four screws or bolts (M4) so that the FRENIC-Mini logo
faces outwards. Tighten those screws or bolts perpendicular to the mounting base.
dissipation efficiency of the inverter and cause the overheat protection function to operate
so the inverter will not run.
Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting
into the inverter or from accumulating on the heat sink.
This may result in a fire or accident.
2.3 Wiring
Follow the procedure below. (In the following description, the inverter has already been installed.)
2.3.1 Removing the terminal block (TB) covers
(1) Removing the control circuit terminal block (TB) cover
Insert your finger in the cutout (near "PULL") in the bottom of the control circuit TB cover, then pull
the cover towards you.
(2) Removing the main circuit terminal block (TB) cover
Hold both sides of the main circuit TB cover between thumb and forefinger and slide it towards you.
Figure 2.2 Removing the Terminal Block (TB) Covers
2-2
2.3.2 Terminal arrangement and screw specifications
The figures below show the arrangement of the main and control circuit terminals which differs
according to inverter type. The two terminals prepared for grounding, which are indicated by the
symbol G in Figures A to D, make no distinction between the power supply side (primary circuit)
and the motor side (secondary circuit).
(1) Arrangement of the main circuit terminals
Table 2.3 Main Circuit Terminals
Power
supply
voltage
Three-
phase
230 V
Three-
phase
460 V
Single-
phase
230 V
Single-
phase
115 V
Note 1) A box () in the above table replaces S or E depending on the enclosure.
Applicable
motor rating
(HP)
1/8
1/4
1/2
1
2
3
5
1/2
1
2
3
5
1/8
1/4
1/2
1
2
3
1/8
1/4
1/2
1
Inverter type
FRNF12C1-2U
FRNF25C1-2U
FRNF50C1-2U
FRN001C1-2U
FRN002C1-2U
FRN003C1-2U
FRN005C1-2U
FRNF50C1-4U
FRN001C1-4U
FRN002C1-4U
FRN003C1-4U
FRN005C1-4U
FRNF12C1-7U
FRNF25C1-7U
FRNF50C1-7U
FRN001C1-7U
FRN002C1-7U
FRN003C1-7U
FRNF12C1-6U
FRNF25C1-6U
FRNF50C1-6U
FRN001C1-6U
Terminal
screw size
M3.5
M4
M3.5
M4
M3.5
Tightening
torque
(lb-in(N·m))
10.6
(1.2)
15.9
(1.8)
10.6
(1.2)
15.9
(1.8)
10.6
(1.2)
Refer to:
Figure A
Figure B
Figure C
Figure D
Figure C
2-3
Screw size: M 2 Tightening torque : 1.8 lb-in(0.2 N•m)
Screw size: M 2.5 Tightening torque : 3.5lb-in(0.4 N•m)
30A
30B
30C
Y111Y1E
FMAC1PLC
121311
CM
X1X2X3
CM
FWD
REV
(2) Arrangement of the control circuit terminals (common to all FRENIC-Mini models)
Table 2.4 Control Circuit Terminals
Dimension of openings in
the control circuit terminals for ferrule*
0.11"(W)x0.07"(H)
(2.7 mm x 1.8 mm)
0.07"(W)x 0.06"(H)
(1.7 mm x 1.6 mm)
Termin-
al
30A, 30B,
30C
Others
Screwdriver to be used Allowable wire size
Phillips screwdriver
(JIS standard)
No.1 screw tip
Phillips screwdriver for
precision machinery
(JCIS standard)
No.0 screw tip
AWG22 to AWG18
(0.34 to 0.75 mm2)
AWG24 to AWG18
(0.25 to 0.75 mm2)
Bared wire
length
0.24 to 0.31"
(6 to 8 mm)
0.2 to 0.28"
(5 to 7 mm)
2.3.3 Recommended wire sizes
Table 2.5 lists the recommended wire sizes. The recommended wire sizes for the main circuits for an
ambient temperature of 50°C (122°F) are indicated for two types of wire: HIV single wire (for 75°C
(167°F)) (before a slash (/)) and IV single wire (for 60°C (140°F)) (after a slash (/)),
2-4
Table 2.5 Recommended Wire Sizes
Recommended wire size (AWG )
14 / 14
(13)
14 / 9
(13)
14 / 14
(13)
14 / 14
(13)
14 / 11
(11)
11 / 9
(9)
14 / 14
14 / 11
Main circuit
*2
Inverter
output
[U, V, W]
14 / 14
(13)
14 / 11
(13)
14 / 14
(13)
14 / 14
(13)
14 / 14
[P1, P (+)]
14 / 14
14 / 11
14 / 14
14 / 14
14 / 11
Appli-
cable
motor
rating
Power supply voltage
1/8
1/4
1/2
1
2
3
Three-phase 230 V
5
1/2
1
2
3
5
Three-phase 460 V
1/8
1/4
1/2
1
2
Single-phase 230 V
3
1/8
1/4
1/2
1
Single-phase 115 V
*1 Use crimp terminals covered with an insulated sheath or insulating tube. Recommended wire sizes are
for HIV/IV (PVC in the EU).
*2 Wire sizes are calculated on the basis of input RMS current under the condition that the power supply
capacity and impedance are 500 kVA (50 kVA for single-phase 115 V class series) and 5%, respectively.
*3 For single-phase 115 V class series of inverters, use the same size of wires as used for the main circuit
power input. Insert the DC reactor (DCR) in either of the primary power input lines. Refer to Chapter 10
for more details.
Note 1) A box () in the above table replaces S or E depending on the enclosure.
Inverter type
(HP)
FRNF12C1-2U
FRNF25C1-2U
FRNF50C1-2U
FRN001C1-2U
FRN002C1-2U
FRN003C1-2U
FRN005C1-2U
FRNF50C1-4U
FRN001C1-4U
FRN002C1-4U
FRN003C1-4U
FRN005C1-4U
FRNF12C1-7U
FRNF25C1-7U
FRNF50C1-7U
FRN001C1-7U
FRN002C1-7U
FRN003C1-7U
FRNF12C1-6U
FRNF25C1-6U
FRNF50C1-6U
FRN001C1-6U
Main circuit power input
[L1/R, L2/S, L3/T]
[L1/L, L2/N]
Grounding [ G]
w/ DCR
14 / 14
(13)
14 / 14
(13)
14 / 14
(13)
14 / 11
(11)
14 / 14
w/o DCR
*1
DCR
(13)
(13)
(13)
(13)
(11)
Braking
resistor
[P (+), DB]
14 / 14
14 / 14
14 / 14
*3 14 / 14
Control
circuit
(13)
(13)
20
(13)
DCR: DC reactor
2-5
2.3.4 Wiring precautions
Follow the rules below when performing wiring for the inverter.
(1) Make sure that the source voltage is within the rated voltage range specified on the nameplate.
(2) Be sure to connect the power wires to the main circuit power input terminals L1/R, L2/S and
L3/T (for three-phase voltage input) or L1/L and L2/N (for single-phase voltage input) of the
inverter. If the power wires are connected to other terminals, the inverter will be damaged when
the power is turned on.
(3) Always connect the grounding terminal to prevent electric shock, fire or other disasters and to
reduce electric noise.
(4) Use crimp terminals covered with insulated sleeves for the main circuit terminal wiring to ensure
a reliable connection.
(5) Keep the power supply wiring (primary circuit) and motor wiring (secondary circuit) of the main
circuit, and control circuit wiring as far away as possible from each other.
• When wiring the inverter to the power source, insert a recommended molded case circuit
breaker (MCCB) or residual-current-operated protective device (RCD)/ a ground fault
circuit interrupter(GFCI)(with overcurrent protection) (with overcurrent protection) in the
path of power lines. Use the devices within the related current range.
• Use wires in the specified size.
Otherwise, fire could occur.
• Do not use one multicore cable in order to connect several inverters with motors.
• Do not connect a surge killer to the inverter's output (secondary) circuit.
Doing so could cause fire.
• Be sure to connect the grounding wires without fail.
Otherwise, electric shock or fire could occur.
• Qualified electricians should carry out wiring.
• Be sure to perform wiring after turning the power off.
• Ground the inverter following Class C or Class D specifications or national/local electric
code, depending on the input voltage of the inverter.
Otherwise, electric shock could occur.
• Be sure to perform wiring after installing the inverter body.
Otherwise, electric shock or injuries could occur.
• Ensure that the number of input phases and the rated voltage of the product match the
number of phases and the voltage of the AC power supply to which the product is to be
connected.
Otherwise, fire or an accident could occur.
• Do not connect the power source wires to output terminals (U, V, and W).
• Do not connect a braking resistor to between terminals P (+) and N (-), P1 and N (-), P (+)
and P1, DB and N (-), or P1 and DB.
Doing so could cause fire or an accident.
2-6
, be sure to
2.3.5 Wiring for main circuit terminals and grounding terminals
Follow the procedure below. Figure 2.3 illustrates the wiring procedure with peripheral equipment.
Wiring procedure
Grounding terminal G*1
Inverter output terminals (U, V, and W) and grounding terminal G*1
DC reactor connection terminals (P1 and P(+))*2
Braking resistor connection terminals (P(+) and DB)*2
DC link bus terminals (P(+) and N(-))*2
Main circuit power input terminals (L1/R, L2/S and L3/T) or (L1/L and L2/N)
1
*
Use either one of these two grounding terminals on the main circuit terminal block.
2
*
Perform wiring as necessary.
(This figure is a virtual representation.)
CAUTION: When wiring the inverter to the power
supply of 500 kVA or more (50 kVA or more for the
single-phase 115 V class series of inverters)
connect an optional DC reactor (DCR).
Figure 2.3 Wiring Procedure for Peripheral Equipment
2-7
Connect the grounding terminal of the 230 V or 460 V class
series of inverters to a ground electrode on which class D or C
t a thick grounding wire with a large surface area and
which meets the grounding resistance requirements listed in
Above
requirements
are for
Japan. Ground the inverter
terminals
to the
-
T
he wiring length between the inverter and motor
length
ded that an output
to connect several
The wiring procedure for the FRN001C1S-2U is given below as an example. For other inverter types,
perform wiring in accordance with their individual terminal arrangement. (Refer to page 2-3.)
Grounding terminal ( G)
Be sure to ground either of the two grounding terminals for safety and noise reduction. It is stipulated
by the Electric Facility Technical Standard that all metal frames of electrical equipment must be
grounded to avoid electric shock, fire and other disasters.
Grounding terminals should be grounded as follows:
1)
grounding work has been completed, respectively, in conformity to the Electric Facility Technical Standard.
2) Connec
Table 2.6. Keep the wiring length as short as possible.
Table 2.6 Grounding Stipulated in the Electric Facility Technical Standard
Supply voltage Grounding work class Grounding resistance
Three-phase 230 V
Figure 2.4 Grounding Terminal
Wiring
Single-phase 230 V
Single-phase 115 V
Three-phase 460 V
Class D 100 or less
Class C 10 or less
Inverter output terminals, U, V, W and grounding terminal ( G)
according to your national or local Electric code requirements.
1) Connect the three wires of the three-phase motor to
U, V, and W, aligning phases each other.
2) Connect the grounding wire of terminals U, V, and W
grounding terminal ( G).
should not exceed 164ft (50m). If the wiring
exceeds 164ft (50m), it is recommen
circuit filter (option) be inserted.
-
Do not use one multicore cable
Figure 2.5 Inverter Output Ter-
minal Wiring
inverters with motors.
2-8
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