Fuji Electric FRENIC-MEGA User manual

Instruction Manual
High Performance, Multifunction Inverter
Thank you for purchasing our FRENIC-MEGA series of inverters.
• This product is designed to drive a three-phase induction motor. Read through this instruction 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 Systems Co., Ltd. INR-SI47-1335-E
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

Copyright © 2008 Fuji Electric Systems Co., Ltd.
All rights reserved.
No part of this publication may be reproduced or copied without prior written permission
from Fuji Electric Systems Co., Ltd.
All products and company names mentioned 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.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

i
Preface
Thank you for purchasing our FRENIC-MEGA series of inverters.
This product is designed to drive a three-phase induction motor. Read through this instruction manual 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.
This instruction manual has been prepared for the inverter versions to be destined for Asia (FRN _ _ _ G1-2A/4A) and EU
(FRN _ _ _ G1-4E). The major differences from other inverter versions are factory defaults.
Have this manual delivered to the end user of this product. Keep this manual in a safe place until this product is discarded.
Listed below are the other materials related to the use of the FRENIC-MEGA. Read them in conjunction with this manual as
necessary.
• FRENIC-MEGA User's Manual
• RS-485 Communication User's Manual
These materials are subject to change without notice. Be sure to obtain the latest editions for use.
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
• The FRENIC-MEGA 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.
• The FRENIC-MEGA may not be used for a life-support system or other purposes directly related to the human safety.
• Though the FRENIC-MEGA is manufactured under strict quality control, install safety devices for applications where
serious accidents or property damages are foreseen in relation to the failure of it.
An accident could occur.
Installation
• Install the inverter on a base made of metal or other non-flammable material.
Otherwise, a fire could occur.
• Do not place flammable object nearby.
Doing so could cause fire.
• Inverters with a capacity of 30 kWor above, whose protective structure is IP00, involve a possibility that a human body
may touch the live conductors of the main circuit terminal block. Inverters to which an optional DCreactor is connected
also involve the same. Install such inverters in an inaccessible place.
Otherwise, electric shock or injuries could occur.
• Do not support the inverter by its front 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.
• When changing the positions of the top and bottom mounting bases, use only the specified screws.
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.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

ii
Wiring
• If no zero-phase current (earthleakage current) detective device such as a ground-fault relay is installed in the upstream
power supply line in order to avoid the entire power supply system's shutdown undesirable to factory operation, install
a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) individually to inverters to
break the individual inverter power supply lines only.
Otherwise, a fire could occur.
• When wiring the inverter to the power source, insert a recommended molded case circuit breaker (MCCB) or
residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) (with overcurrent protection)
in the path of each pair of power lines to inverters. Use the recommended devices within the recommended current
capacity.
• Use wires in the specified size.
• Tighten terminals with specified torque.
Otherwise, a fire could occur.
• When there is more than one combination of an inverter and motor, do not use a multicore cable for the purpose of
handling their wirings together.
• Do not connect a surge killer to the inverter's output (secondary) circuit.
Doing so could cause a fire.
• Be sure to connect an optional DC reactor (DCR) when the capacity of the power supply transformer exceeds 500 kVA
and is 10 times or more the inverter rated capacity.
Otherwise, a fire could occur.
• Ground the inverter in compliance with the national or local electric code.
• Be sure to ground the inverter's grounding terminals G.
Otherwise, an electric shock or a fire could occur.
• Qualified electricians should carry out wiring.
• Be sure to perform wiring after turning the power OFF.
Otherwise, an electric shock could occur.
• Be sure to perform wiring after installing the inverter unit.
Otherwise, an 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, a fire or an accident could occur.
• Do not connect the power supply wires to output terminals (U, V, and W).
• When connecting a DC braking resistor (DBR), never connect it to terminals other than terminals P(+) and DB.
Doing so could cause fire or an accident.
• In general, sheaths of the control signal wires are not specifically designed to withstand a high voltage (i.e., reinforced
insulation is not applied). Therefore, if a control signal wire comes into direct contact with a live conductor of the main
circuit, the insulation of the sheath might break down, which would expose the signal wire to a high voltage of the main
circuit. Make sure that the control signal wires will not come into contact with live conductors of the main circuit.
Doing so could cause an accident or an electric shock.
• Before changing the switches or touching the control circuit terminal symbol plate, turn OFF the power and wait at
least five minutes for inverters with a capacity of 22 kW or below, or at least ten minutes for inverters with a
capacity of 30 kW or above. Make sure that the LED monitor and charging lamp are turned OFF. Further, make sure,
using a multimeter or a similar instrument, that the DC link bus voltage between the terminals P(+) and N(-) has
dropped to the safe level (+25 VDC or below).
Otherwise, an electric shock could occur.
• The inverter, motor and wiring generate electric noise. Be careful about malfunction of the nearby sensors and devices.
To prevent them from malfunctioning, implement noise control measures.
Otherwise an accident could occur.
• The leakage current of the EMC filter built-in type of inverters is comparatively large. Be sure to perform protective
grounding.
Otherwise, an electric shock could occur.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

iii
Operation
• Be sure to mount the front cover before turning thepower ON. Do not remove the cover when the inverter power is ON.
Otherwise, an electric shock could occur.
• Do not operate switches with wet hands.
Doing so could cause electric shock.
• If the auto-reset 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 at the time of restarting.
Otherwise, an accident could occur.
• If the stall prevention function (current limiter), automatic deceleration (anti-regenerative control), or overload
prevention control has been selected, the inverter may operate with acceleration/deceleration or frequency different
from the commanded ones. Design the machine so that safety is ensured even in such cases.
• The key on the keypad is effective only when the keypad operation is enabled with function code F02 (= 0, 2 or 3).
When the keypad operation is disabled, prepare an emergency stop switch separately for safe operations.
Switching the run command source from keypad (local) to external equipment (remote) by turning ON the "Enable
communications link" command LE disables the key. To enable the key for an emergency stop, select the STOP
key priority with function code H96 (= 1 or 3).
• If any of the protective functions have been activated, first remove the cause. Then, after checking that the all run
commands are set to OFF, release the alarm. Ifthe alarm is released whileany run commands are set to ON, the inverter
may supply the power to the motor, running the motor.
Otherwise, an accident could occur.
• If you enable the "Restart mode after momentary power failure" (Function code F14 = 3 to 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 the user configures the function codes wrongly without completely understanding this Instruction Manual and the
FRENIC-MEGA 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.
• Even if the inverter has interrupted power to the motor, if the voltage is applied to the main circuit input terminals L1/R,
L2/S and L3/T, voltage may be output to inverter output terminals U, V, and W.
• Even if the run command is set to OFF, voltage is output to inverter output terminals U, V, and W if the servo-lock
command is ON.
• Even if the motor is stopped due to DC braking or preliminary excitation, voltage is output to inverter output terminals
U, V, and W.
An electric shock may occur.
• The inverter can easily accept high-speed operation. When changing the speed setting, carefully check the
specifications of motors or equipment beforehand.
Otherwise, injuries could occur.
• Do not touch the heat sink and braking resistor because they become very hot.
Doing so could cause burns.
• The DC brake function of the inverter does not provide any holding mechanism.
Injuries could occur.
• Ensure safety before modifying the function code settings.
Run commands (e.g., "Run forward" FWD), stop commands (e.g., "Coast to a stop" BX), and frequency change
commands can be assigned to digital input terminals. Depending upon the assignment states of those terminals,
modifying the function code setting may cause a sudden motor start or an abrupt change in speed.
• When the inverter is controlled with the digital input signals, switching run or frequency command sources with the
related terminal commands (e.g., SS1, SS2, SS4, SS8, Hz2/Hz1, Hz/PID, IVS, and LE) may cause a sudden motor start
or an abrupt change in speed.
• Ensure safety before modifying customizable logic related function code settings (U codes and related function codes)
or turning ON the "Cancel customizable logic" terminal command CLC. Depending upon the settings, such
modification or cancellation of the customizable logic may change the operation sequence to cause a sudden motor
start or an unexpected motor operation.
An accident or injuries could occur.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

iv
Maintenance and inspection, and parts replacement
• Before proceeding to the maintenance/inspection jobs, turn OFF the power and wait at least five minutes for
inverters with a capacity of 22 kW or below, or at least ten minutes for inverters with a capacity of 30 kW or
above. Make sure that the LED monitor and charging lamp are turned OFF. Further, make sure, using a multimeter or a
similar instrument, that the DC link bus voltage between the terminals P(+) and N(-) has dropped to the safe level (+25
VDC or below).
Otherwise, an electric shock could occur.
• Maintenance, inspection, and parts replacement should be made only by qualified persons.
• Take off the watch, rings and other metallic objects before starting work.
• Use insulated tools.
Otherwise, an electric shock or injuries could occur.
• Never modify the inverter.
Doing so could cause an electric shock or injuries.
Disposal
• Treat the inverter as an industrial waste when disposing of it.
Otherwise injuries could occur.
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.
Icons
The following icons are used throughout this manual.
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 can result in accidents.
This icon indicates information that can prove handy when performing certain settings or operations.
This icon indicates a reference to more detailed information.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

v
Conformity to the Low Voltage Directive in the EU
If installed according to the guidelines given below, inverters marked with CE are considered as compliant with the Low
Voltage Directive 2006/95/EC.
Compliance with European Standards
Adjustable speed electrical power drive systems (PDS).
Part 5-1: Safety requirements. Electrical, thermal and energy. EN61800-5-1: 2003
1. The ground terminal G should always be connected to the ground. Do not use only a residual-current-operated
protective device (RCD)/earth leakage circuit breaker (ELCB)* 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. To prevent the risk of hazardous accidents that could be caused by damage of the inverter, install the specified fuses in
the supply side (primary side) according to the following tables.
- Breaking capacity: Min. 10 kA
- Rated voltage: Min. 500 V
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type HD/
LD
mode
Fuse rating
(A)
0.4 FRN0.4G1-210 (IEC60269-1)
0.75 FRN0.75G1-215 (IEC60269-1)
1.5 FRN1.5G1-220 (IEC60269-1)
2.2 FRN2.2G1-230 (IEC60269-1)
3.7 FRN3.7G1-2
HD
40 (IEC60269-1)
5.5 HD
FRN5.5G1-2LD 125 (IEC60269-4)
7.5 HD
FRN7.5G1-2LD 160 (IEC60269-4)
11 HD
FRN11G1-2LD 160 (IEC60269-4)
15 HD
FRN15G1-2LD 200 (IEC60269-4)
18.5 HD
FRN18.5G1-2LD 250 (IEC60269-4)
22 HD
FRN22G1-2LD 250 (IEC60269-4)
30 HD
FRN30G1-2LD 350 (IEC60269-4)
37 HD
FRN37G1-2LD 400 (IEC60269-4)
45 HD
FRN45G1-2LD 450 (IEC60269-4)
55 HD
FRN55G1-2LD
75 HD
FRN75G1-2LD
90 HD
Three-phase 200 V
110 FRN90G1-2LD
500 (IEC60269-4)
* 4.0 kW for the EU. The inverter type is FRN4.0G1-4E.
Note: A box () in these tables replaces S or E depending on the
enclosure.
A box () in these tables replaces A or E depending on the
shipping destination.
Fuses
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type HD/ MD/LD
mode
Fuse rating
(A)
0.4 FRN0.4G1-43 (IEC60269-1)
0.75 FRN0.75G-46 (IEC60269-1)
1.5 FRN1.5G1-410 (IEC60269-1)
2.2 FRN2.2G1-415 (IEC60269-1)
3.7
(4.0)* FRN3.7G1-4A FRN4.0G1-4E
HD
20 (IEC60269-1)
5.5 HD
FRN5.5G1-4LD 80 (IEC60269-4)
7.5 HD
FRN7.5G1-4LD 80 (IEC60269-4)
11 HD
FRN11G1-4LD 125 (IEC60269-4)
15 HD
FRN15G1-4LD 125 (IEC60269-4)
18.5 HD
FRN18.5G-4LD 160 (IEC60269-4)
22 HD
FRN22G1-4LD 160 (IEC60269-4)
30 HD
FRN30G1-4LD 250 (IEC60269-4)
37 HD
FRN37G1-4LD 315 (IEC60269-4)
45 HD
FRN45G1-4LD 315 (IEC60269-4)
55 HD 400 (IEC60269-4)
FRN55G1-4LD 350 (IEC60269-4)
75 HD
FRN75G1-4LD 350 (IEC60269-4)
90 HD
FRN90G1-4MD/LD 350 (IEC60269-4)
110 HD
FRN110G-4MD/LD 400 (IEC60269-4)
132 HD
FRN132G-4MD/LD 450 (IEC60269-4)
160 HD
FRN160G-4MD/LD 500 (IEC60269-4)
200 HD
FRN200G-4MD/LD 550 (IEC60269-4)
220 HD
250 MD
FRN220G-4LD 630 (IEC60269-4)
280 HD
315 MD
355 FRN280G-4LD
315 HD
355 MD
400 FRN315G-4LD
900 (IEC60269-4)
355 HD
400 MD
450 FRN355G-4LD
400 HD
450 MD
FRN400G-4LD
1250
(IEC60269-4)
500 HD
FRN500G-4LD
630 HD
Three-phase 400 V
710 FRN630G-4LD
2000
(IEC60269-4)

vi
Conformity to the Low Voltage Directive in the EU (Continued)
3. When used with the inverter, a molded case circuit breaker (MCCB), residual-current-operated protective device
(RCD)/earth leakage circuit breaker (ELCB) or magnetic contactor (MC) should conform to the EN or IEC standards.
4. When you use a residual-current-operated protective device (RCD)/earth leakage circuit breaker (ELCB) for protection
from electric shock in direct or indirectcontact power lines or nodes, be sure to install type B of RCD/ELCB on the input
(primary) of the inverter if the power supply is three-phase 200/400 V.
5. 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.
6. 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.
7. Do not connect any copper wire directly to grounding terminals. Use crimp terminals with tin or equivalent plating to
connect them.
8. When you use an inverter at an altitude of more than 2000 m, you should apply basic insulation for the control circuits of
the inverter. The inverter cannot be used at altitudes of more than 3000 m.
9. Use wires listed in EN60204 Appendix C.
Recommended wire size (mm2)
Main circuit
MCCB or
RCD/ELCB *1
Rated current
Main power
input *2
[L1/R, L2/S, L3/T]
Inverter’s
grounding [ G]
Power supply voltage
Nominal applied motor
Inverter type
HD/LD mode
W/
DCR W/o DCR W/ DCR W/o DCR
Inverter outputs
[U, V, W] *2
DC reactor
[P1, P(+)] *2
Braking resistor
[P(+), DB] *2
Control circuit
Aux. control power
supply [R0, T0]
Aux. fan power
supply [R1, T1]
0.4 FRN0.4G1-25
0.75 FRN0.75G1-25 10 -
1.5 FRN1.5G1-215
1
2.2 FRN2.2G1-210 20
1
1.5
1 1
3.7 FRN3.7G1-2
HD
20 30 2.5 4 2.5 2.5
5.5 HD 30 50 4 6 4 4
FRN5.5G1-2LD 6
7.5 HD 40 75 6 10 6
FRN7.5G1-2LD
11 HD 50 100 10 16 10 16
FRN11G1-2LD
15 HD 75 125 16 25 16 25
FRN15G1-2LD
1
18.5 HD 150 25 35 25
FRN18.5G1-2LD
22 HD
100
175 35 50 35
35
FRN22G1-2LD
1.5
30 HD 150 200 50 70 50 70
FRN30G1-2LD 2.5
-
37 HD 175 250 70 95 70 95
FRN37G1-2LD 4
45 HD 200 300 95 70×2 95 50×2
FRN45G1-2LD 6
55 HD 250 350 50×2 95×2 70×2 70×2
FRN55G1-2LD 10
75 HD 350 95×2 95×2 95×2
FRN75G1-2LD
90 HD 400 120×2 120×2 120×2
Three--phase 200 V
110 FRN90G1-2LD 500
-
150×2
-
150×2 150×2
-
0.65
to
0.82 2.5
2.5
Note: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replacesA or E depending on the shipping destination.
*1 The frame size and model of the MCCB or RCD/ELCB (with overcurrent protection) will vary, depending on the power transformer capacity.
Refer to the related technical documentation for details.
*2 The recommended wire size for main circuits is for the 70°C 600 V PVC wires used at a surrounding temperature of 40°C.

vii
Conformity to the Low Voltage Directive in the EU (Continued)
Recommended wire size (mm2)
Main circuit
MCCB or
RCD/ELCB *1
Rated current
Main power
input *2
[L1/R, L2/S, L3/T]
Inverter’s
grounding [ G]
Power supply voltage
Nominal applied motor
Inverter type
HD/MD/LD mode
W/
DCR W/o DCR W/ DCR W/o DCR
Inverter outputs
[U, V, W] *2
DC reactor
[P1, P(+)] *2
Braking resistor
[P(+), DB] *2
Control circuit
Aux. control power
supply [R0, T0]
Aux. fan power
supply [R1, T1]
0.4 FRN0.4G1-4
0.75 FRN0.75G1-45 -
1.5 FRN1.5G1-4
5
10
2.2 FRN2.2G1-415
1
3.7
(4.0)* FRN3.7G1-4A
FRN4.0G1-4E
HD
10 20 1.5
1 1
5.5 HD 15 30
1
2.5 1.5 1.5
FRN5.5G1-4LD
7.5 HD 20 40 1.5 4 2.5 2.5
FRN7.5G1-4LD
11 HD 30 50 4 6 4 4
FRN11G1-4LD
15 HD 60 10 6 6
FRN15G1-4LD
18.5 HD
40
75
6
10
FRN18.5G1-4LD
22 HD 50 100 10
16 10
16
FRN22G1-4LD
30 HD 75 16 25 16
FRN30G1-4LD
1
37 HD
125
35 25
25
FRN37G1-4LD
45 HD
100
150
25
50 35 35
FRN45G1-4LD
1.5
55 HD 125 200 35 70 50 70
FRN55G1-4LD 2.5
-
75 HD 175 70 70 95
FRN75G1-4LD 4
90 HD 200 95 95 120
FRN90G1-4MD/LD
110 HD 250 50×2 150
FRN110G1-4MD/LD
132 HD 300 70×2
70×2
70×2
FRN132G1-4MD/LD
160 HD 350 185 240 300
FRN160G1-4MD/LD
200 HD 300 120×2
FRN200G1-4MD/LD
Three--phase 400 V
220 FRN220G1-4HD
500
-
300
-
150×2 150×2
-
0.65
to
0.82 2.5
2.5
* 4.0 kW for the EU. The inverter type is FRN4.0G1-4E.
Note: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replacesA or E depending on the shipping destination.
*1 The frame size and model of the MCCB or RCD/ELCB (with overcurrent protection) will vary, depending on the power transformer capacity.
Refer to the related technical documentation for details.
*2 The recommended wire size for main circuits is for the 70°C 600 V PVC wires used at a surrounding temperature of 40°C.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

viii
Conformity to the Low Voltage Directive in the EU (Continued)
Recommended wire size (mm2)
Main circuit
MCCB or
RCD/ELCB *1
Rated current
Main power
input *2
[L1/R, L2/S, L3/T]
Inverter’s
grounding [ G]
Power supply voltage
Nominal applied motor
Inverter type
HD/MD/LD mode
W/
DCR W/o DCR W/ DCR W/o DCR
Inverter outputs
[U, V, W] *2
DC reactor
[P1, P(+)] *2
Braking resistor
[P(+), DB] *2
Control circuit
Aux. control power
supply [R0, T0]
Aux. fan power
supply [R1, T1]
250 MD 185×2 185×2 185×2
FRN220G1-4LD
280 HD
600 240×2
FRN280G1-4MD
315 FRN315G1-4HD
240×2 240×2
FRN280G1-4LD
FRN315G1-4MD
355
FRN355G1-4HD
800
300×2
300×2
300×2
FRN315G1-4LD
FRN355G1-4MD
400
FRN400G1-4HD
240×3 240×3 300×3
FRN355G1-4LD
450 MD 300×3 240×4
FRN400G1-4LD
500 HD
1200
300×3
240×4
FRN500G1-4LD
630 HD 1400
Three--phase 400 V
710 FRN630G1-4LD 1600
-
300×4
-
300×4
300×4
- 0.65
to
0.82 2.5 2.5
Note: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replacesA or E depending on the shipping destination.
*1 The frame size and model of the MCCB or RCD/ELCB (with overcurrent protection) will vary, depending on the power transformer capacity.
Refer to the related technical documentation for details.
*2 The recommended wire size for main circuits is for the 70°C 600 V PVC wires used at a surrounding temperature of 40°C.
10. The inverter has been tested with IEC61800-5-1 2007 5.2.3.6.3 Short-circuit Current Test under the following
conditions.
Short-circuit current in the supply: 10 kA
Maximum 240 V for 200 V class series with 22 kW or below
Maximum 230 V for 200 V class series with 30 kW or above
Maximum 480 V for 400 V class series
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

ix
Conformity with UL standards and CSA standards (cUL-listed for Canada)
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. Use Cu wire only.
3. Use Class 1 wire only for control circuits.
4. Short circuit rating
"Suitable For Use On A Circuit Of Delivering Not More Than 100,000 rms Symmetrical Amperes, 240 Volts Maximum
for 200V class input 22 kW or less, 230 Volts maximum for 200V class input 30 kW or above when protected by Class
J Fuses or a Circuit Breaker having an interrupting rating not less than 100,000 rms Symmetrical Amperes, 240 Volts
Maximum." Models FRN; rated for 200V class input.
"Suitable For Use On A Circuit Of Delivering Not More Than 100,000 rms Symmetrical Amperes, 480 Volts Maximum
when protected by Class J Fuses or a Circuit Breaker having an interrupting rating not less than 100,000 rms
Symmetrical Amperes, 480 Volts Maximum." Models FRN; rated for 400V class input.
"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."
5. Field wiring connections must be made by a UL Listed and CSA Certified closed-loop terminal connector sized for the
wire gauge involved. Connector must be fixed using the crimp tool specified by the connector manufacturer.
6. All circuits with terminals L1/R, L2/S, L3/T, R0, T0, R1, T1 must have a common disconnect and be connected to the
same pole of the disconnect if the terminals are connected to the power supply.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

x
Conformity with UL standards and CSA standards (cUL-listed for Canada) (continued)
7. Install UL certified fuses or circuit breaker between the power supply and the inverter, referring to the table below.
Required
torque lb-in
(Nm) Wire size AWG (mm2)
Main terminal
L1/R, L2/S, L3/T U, V, W
Power supply voltage
Nominal applied motor
Inverter type
HD/LD mode
Class J fuse size (A)
Circuit breaker trip size (A)
Main terminal
Aux. control power supply
Aux. Fan power supply
60°C Cu wire 75°C Cu wire
Remarks
60°C Cu wire 75°C Cu wire
Remarks
Aux. control power supply
Aux. fan power supply
0.4 FRN0.4G1-210 5
0.75 FRN0.75G1-215 10
10.6
(1.2) - -
1.5 FRN1.5G1-220 15
2.2 FRN2.2G1-230 20
14
(2.1) 14 (2.1) 14 (2.1) 14 (2.1)
3.7 FRN3.7G1-2
HD
40 30
15.9
(1.8) 10
(5.3) 10 (5.3)
-
12
(3.3) 12 (3.3)
-
5.5 HD 60 50
FRN5.5G1-2LD
7.5 HD 75 75 8
(8.4)
*1
FRN7.5G1-2LD
11 HD 100 100 6
(13.3)
8
(8.4)
*1
FRN11G1-2LD
30.9
(3.5) - *2
*3 - *2 *3
15 HD 150 125 3
(26.7)
4
(21.2) 4
(21.2)
6
(13.3)
FRN15G1-2LD
18.5 HD 175 150 1
(42.4) 3
(26.7)
-3
(26.7) 4 (21.2)
FRN18.5G1-2LD
22 HD 200 175 2
(33.6) 2 (33.6) 3 (26.7)
-
FRN22G1-2LD
51.3
(5.8)
2
(33.6)
30
HD 250 200 2/0
(67.4) 1
(42.4)
FRN30G1-2LD
119.4
(13.5)
-
1/0
(53.5)
-
37
HD 350 250 3/0
(85)
FRN37G1-2LD
45 HD 400 300 4/0
(107.2)
FRN45G1-2LD
55 HD 450 2/0×2
(67.4×2)
4/0
(107.2)
FRN55G1-2LD
238.9
(27)
75 HD 500
350 3/0×2
(85×2) 3/0×2 (85×2)
FRN75G1-2LD
90 HD 600 400 4/0×2
(107.2×2) 4/0×2 (107.2×2)
Three-phase 200 V
110 FRN90G1-2LD 700 500
424.7
(48)
10.6
(1.2)
10.6
(1.2)
-
300×2
(152×2)
-
*2
*3 -
300×2
(152×2)
-
*2
*3
14
(2.1)
*1
*2
14
(2.1)
Note 1: Control circuit terminals Tightening torque: 6.1 lb-in (0.7 Nm), Recommended wire size: AWG 19 or 18 (0.65 to 0.82 mm2)
Note 2: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replaces A or E depending on the shipping destination.
*1 No terminal end treatment is required for connection.
*2 Use 75°C Cu wire only.
*3 The wire size of UL Open Type and Enclosed Type are common. Please contact us if UL Open Type exclusive wire is necessary.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

xi
Conformity with UL standards and CSA standards (cUL-listed for Canada) (continued)
Required
torque lb-in
(Nm) Wire size AWG (mm2)
Main terminal
L1/R, L2/S, L3/T U, V, W
Power supply voltage
Nominal applied motor
Inverter type
HD/MD/LD mode
Class J fuse size (A)
Circuit breaker trip size (A)
Main terminal
Aux. control power supply
Aux. Fan power supply
60°C Cu wire 75°C Cu wire
Remarks
60°C Cu wire 75°C Cu wire
Remarks
Aux. control power supply
Aux. fan power supply
0.4 FRN0.4G1-43
0.75 FRN0.75G1-46 510.6
(1.2) - -
1.5 FRN1.5G1-410 10
2.2 FRN2.2G1-415 15
3.7
(4.0)* FRN3.7G1-4A FRN4.0G1-4E
HD
20 20
15.9
(1.8)
14
(2.1) 14 (2.1) -14 (2.1) 14 (2.1) -
5.5 HD 30 30 12
(3.3)
FRN5.5G1-4LD
7.5 HD 40 40 10
(5.3)
12
(3.3)
FRN7.5G1-4LD
11 HD 60 50 10
(5.3)
FRN11G1-4LD
30.9
(3.5) -
8
(8.4)
*1
*2
*3 -
8
(8.4)
*1
*2
*3
15 HD 70 60
FRN15G1-4LD
18.5 HD 90 75 6
(13.3)
FRN18.5G1-4LD
22 HD 100 100 4
(21.2)
6
(13.3) 6 (13.3)
FRN22G1-4LD
51.3
(5.8)
4
(21.2)
6
(13.3)
30 HD 125 3
(26.7) 4 (21.2)
FRN30G1-4LD
37 HD 175
125 2
(33.6) 3 (26.7)
-
FRN37G1-4LD
45 HD 200 150 2
(33.6)
2
(33.6)
-
FRN45G1-4LD
55 HD 200
2
(33.6)
FRN55G1-4LD
119.4
(13.5)
-
1/0
(53.5) 1/0
(53.5)
-
75 HD
250 175
FRN75G1-4LD
90 HD 300 200 2/0
(67.4) 4/0 (107.2)
FRN90G1-4MD/LD
110 HD 350 250 1/0×2
(53.5×2)
FRN110G1-4MD/LD
238.9
(27)
132 HD 400 300
1/0×2
(53.5×2) 2/0×2
(67.4×2)
FRN132G1-4MD/LD
160 HD 500 350 3/0×2
(85×2) 3/0×2 (85×2)
FRN160G1-4MD/LD
200 HD 600 4/0×2
(107.2×2) 250×2 (127×2)
FRN200G1-4MD/LD
Three-phase 400 V
220 FRN220G1-4HD 700 500
424.7
(48)
10.6
(1.2)
10.6
(1.2)
-
250×2
(127×2)
-
*2
*3 -
300×2
(152×2)
-
*2
*3
14
(2.1)
*1
*2
14
(2.1)
*1
*2
* 4.0 kW for the EU. The inverter type is FRN4.0G1-4E.
Note 1: Control circuit terminals Tightening torque: 6.1 lb-in (0.7 Nm), Recommended wire size: AWG 19 or 18 (0.65 to 0.82 mm2)
Note 2: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replaces A or E depending on the shipping destination.
*1 No terminal end treatment is required for connection.
*2 Use 75°C Cu wire only.
*3 The wire size of UL Open Type and Enclosed Type are common. Please contact us if UL Open Type exclusive wire is necessary.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

xii
Conformity with UL standards and CSA standards (cUL-listed for Canada) (continued)
Required torque
lb-in (Nm) Wire size AWG (mm2)
Main terminal
L1/R, L2/S, L3/T U, V, W
Power supply voltage
Nominal applied motor
Inverter type
HD/MD/LD mode
Class J fuse size (A)
Circuit breaker trip size (A)
Main terminal
Aux. control power supply
Aux. Fan power supply
60°C Cu wire
75°C Cu wire
Remarks
60°C Cu wire 75°C Cu wire
Remarks
Aux. control power supply
Aux. fan power supply
250 MD 800 300×2
(152×2) 350×2 (177×2)
FRN220G1-4LD 400×2
(203×2)
*2
*3 400×2
(203×2)
*2
*3
280 FRN280G1-4HD
600
250×2
(127×2) 300×2 (152×2)
FRN280G1-4MD
315 FRN315G1-4HD
1000
300×2
(152×2) 350×2 (177×2)
FRN280G1-4LD
FRN315G1-4MD
355
FRN355G1-4HD
800 400×2
(203×2) 400×2 (203×2)
FRN315G1-4LD
FRN355G1-4MD
400
FRN400G1-4HD
1200
500×2
(253×2) 500×2 (253×2)
FRN355G1-4LD
450 MD 1400 600×2
(304×2) 600×2 (304×2)
FRN400G1-4LD
500 HD 1600
1200
350×3
(177×3) 400×3 (203×3)
FRN500G1-4LD
630 HD 2000 1400 500×3
(253×3) 600×3 (304×3)
Three-phase 400 V
710 FRN630G1-4LD 2200 1600
424.7
(48) 10.6 (1.2) 10.6 (1.2) -
600×3
(304×3)
-
*2
*4
-
500×4
(253×4)
-
*2
*4
14
(2.1)
*1
*2
14
(2.1)
*1
*2
Note 1: Control circuit terminals Tightening torque: 6.1 lb-in (0.7 Nm), Recommended wire size:AWG 19 or 18 (0.65 to 0.82 mm2)
Note 2: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replaces A or E depending on the shipping destination.
*1 No terminal end treatment is required for connection.
*2 Use 75°C Cu wire only.
*3 The wire size of UL Open Type and Enclosed Type are common. Please contact us if UL Open Type exclusive wire is necessary.
*4 It is showing the wire size for UL Open Type.
See additional material INR-SI47-1365 for ULEnclosed Type (Pack with TYPE1 kit).
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

xiii
Table of Contents
Preface ...............................................................................i
Safety precautions.................................................................i
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 Precautions for Using Inverters................................1-3
1.3.1 Precautions in introducing inverters..................1-3
1.3.2 Precautions in running inverters........................1-7
1.3.3 Precautions in using special motors ..................1-8
Chapter 2 MOUNTING AND WIRING THE
INVERTER .......................................................2-1
2.1 Operating Environment............................................2-1
2.2 Installing the Inverter...............................................2-1
2.3 Wiring ......................................................................2-3
2.3.1 Removing and mounting the front cover and
the wiring guide................................................2-3
2.3.2 Screw specifications and recommended wire
sizes ..................................................................2-4
2.3.3 Wiring precautions............................................2-7
2.3.4 Wiring of main circuit terminals and grounding
terminals ...........................................................2-9
2.3.5 Wiring for control circuit terminals.................2-16
2.3.6 Setting up the slide switches...........................2-23
2.4 Mounting and Connecting a Keypad......................2-25
Chapter 3 OPERATION USING THE KEYPAD
(in the case of remote keypad)...........................3-1
3.1 LED Monitor, Keys and LED Indicators on the
Keypad.....................................................................3-1
3.2 Overview of Operation Modes.................................3-2
3.3 Running Mode .........................................................3-3
3.3.1 Monitoring the running status...........................3-3
3.3.2 Monitoring light alarms ....................................3-4
3.4 Programming Mode .................................................3-5
3.4.1 Setting up basic function codes quickly
-- Menu #0 "Quick Setup" --.............................3-6
3.4.2 Setting up function codes
-- Menu #1 "Data Setting" --.............................3-7
3.4.3 Checking changed function codes
-- Menu #2 "Data Checking" --.........................3-7
3.4.4 Monitoring the running status
-- Menu #3 "Drive Monitoring" --.....................3-8
3.4.5 Checking I/O signal status
-- Menu #4 "I/O Checking" --.........................3-11
3.4.6 Reading maintenance information
-- Menu #5 "Maintenance Information" -- ......3-14
3.4.7 Reading alarm information
-- Menu #6 "Alarm Information" --.................3-18
3.4.8 Copying data
-- Menu #7 "Data Copying" --.........................3-20
3.5 Alarm Mode...........................................................3-23
3.6 USB Connectivity..................................................3-24
Chapter 4 RUNNING THE MOTOR.................................4-1
4.1 Running the Motor for a Test ...................................4-1
4.1.1 Test run procedure.............................................4-1
4.1.2 Checking prior to powering on .........................4-1
4.1.3 Powering ON and checking ..............................4-2
4.1.4 Switching between HD, MD and LD drive
modes................................................................4-2
4.1.5 Selecting a desired motor drive control.............4-3
4.1.6 Function code basic settings < 1 >....................4-5
4.1.7 Function code basic settings and tuning < 2 > ..4-6
4.1.8 Function code basic settings and tuning < 3 > ..4-8
4.1.9 Function code basic settings < 4 >..................4-11
4.1.10 Function code basic settings < 5 >..................4-12
4.1.11 Function code basic settings and tuning < 6 > 4-12
4.1.12 Running the inverter for motor operation
check...............................................................4-14
4.1.13 Preparation for practical operation..................4-16
4.2 Special Operations .................................................4-16
4.2.1 Jogging operation............................................4-16
4.2.2 Remote and local modes .................................4-16
4.2.3 External run/frequency command...................4-17
Chapter 5 FUNCTION CODES............................................5-1
5.1 Function Code Tables...............................................5-1
5.2 Details of Function Codes ..................................... 5-29
5.2.1 Fundamental Functions .................................. 5-29
5.2.2 E codes (Extension Terminal Functions)........ 5-67
5.2.3 C codes (Control functions)............................ 5-92
5.2.4 P codes (Motor 1 Parameters)......................... 5-95
5.2.5 H codes (High Performance Functions).......... 5-99
5.2.6 A codes (Motor 2 Parameters),
b codes (Motor 3 Parameters),
r codes (Motor 4 Parameters) ........................5-117
5.2.7 J codes (Application Functions 1) ................ 5-120
5.2.8 d codes (Application Functions 2)................ 5-133
5.2.9 U codes (Application functions 3)................ 5-139
5.2.10 y codes (Link Functions).............................. 5-147
Chapter 6 TROUBLESHOOTING.................................... 6-1
6.1 Protective Functions................................................ 6-1
6.2 Before Proceeding with Troubleshooting ................ 6-3
6.3 If Neither an Alarm Code Nor "Light Alarm"
Indication (
l-al ) Appears on the LED Monitor... 6-4
6.3.1 Abnormal motor operation ............................... 6-4
6.3.2 Problems with inverter settings ........................ 6-9
6.4 If an Alarm CodeAppears on the LED Monitor.... 6-10
6.5 If the "Light Alarm" Indication (
l-al ) Appears
on the LED Monitor .............................................. 6-21
6.6 If an Abnormal Pattern Appears on the LED Monitor
while Neither an Alarm Code nor "Light Alarm"
Indication (
l-al ) is Displayed............................ 6-22
Chapter 7 MAINTENANCE AND INSPECTION............ 7-1
7.1 Daily Inspection....................................................... 7-1
7.2 Periodic Inspection.................................................. 7-1
7.3 List of Periodic Replacement Parts.......................... 7-2
7.3.1 Judgment on service life................................... 7-3
7.4 Measurement of Electrical Amounts in Main
Circuit...................................................................... 7-5
7.5 Insulation Test ......................................................... 7-6
7.6 Inquiries about Product and Guarantee.................... 7-7
7.6.1 When making an inquiry.................................. 7-7
7.6.2 Product warranty.............................................. 7-7
Chapter 8 SPECIFICATIONS........................................... 8-1
8.1 Standard Model 1 (Basic Type) ............................... 8-1
8.1.1 Three-phase 200 V class series......................... 8-1
8.1.2 Three-phase 400 V class series......................... 8-2
8.2 Standard Model 2 (EMC Filter Built-in Type)......... 8-5
8.2.1 Three-phase 200 V class series......................... 8-5
8.2.2 Three-phase 400 V class series......................... 8-6
8.3 Common Specifications........................................... 8-9
8.4 External Dimensions...............................................8-11
8.4.1 Standard models..............................................8-11
8.4.2 DC reactor.......................................................8-11
Chapter 9 CONFORMITY WITH STANDARDS............. 9-1
9.1 Compliance with UL Standards and Canadian
Standards (cUL certification)................................... 9-1
9.1.1 General............................................................. 9-1
9.1.2 Considerations when using FRENIC-MEGA
in systems to be certified by UL and cUL ........ 9-1
9.2 Compliance with European Standards..................... 9-1
9.3 Compliance with EMC Standards............................ 9-1
9.3.1 General............................................................. 9-1
9.3.2 Recommended installation procedure............... 9-2
9.3.3 Leakage current of EMC-filter built-in type of
inverters............................................................ 9-3
9.4 Harmonic Component Regulation in the EU........... 9-4
9.4.1 General comments............................................ 9-4
9.4.2 Compliance with the harmonic component
regulation ......................................................... 9-4
9.5 Compliance with the Low Voltage Directive
in the EU.................................................................. 9-4
9.5.1 General............................................................. 9-4
9.5.2 Points for consideration when using the
FRENIC-MEGA series in a system to be certified
by the Low Voltage Directive in the EU........... 9-4
9.6 Compliance with EN954-1, Category 3................... 9-5
9.6.1 General............................................................. 9-5
9.6.2 EN954-1........................................................... 9-5
9.6.3 Notes ................................................................ 9-6

1-1
Chapter 1 BEFORE USING THE INVERTER
1.1 Acceptance Inspection
Unpack the package and check the following:
(1) An inverter and instruction manual (this book) are contained in the package.
• The inverter is not equipped with a keypad when it is shipped. Mount a separately ordered keypad on the
inverter. This manual describes the inverter with a remote keypad. For inverters with a multi-function keypad,
read the Multi-function Keypad Instruction Manual in conjunction with this manual.
• Inverters with a capacity of 55 kW in LD mode and inverters with 75 kW or above require a DC reactor
(DCR) to be connected. Be sure to connect a separately ordered DCR to those inverters.
(2) The inverter has not been damaged during transportation—there should be no dents or parts missing.
(3) The inverter is the type you ordered. You can check the type and specifications on the main nameplate. (Main and sub
nameplates are attached to the inverter and are located as shown on the next page.) For inverters with a capacity of 30 kW
or above, the mass is printed on the main nameplate.
(a) Main Nameplate (b) Sub Nameplate
Figure 1.1 Nameplates
TYPE: Type of inverter
In tables given in this manual, inverter types are denoted as "FRN_ _ _G1-2/4." The boxes and replace
alphabetic letters depending on the enclosure and shipping destination, respectively.
The FRENIC-MEGA is available in two or three drive modes depending upon the inverter capacity: High Duty (HD) and
Low Duty (LD) modes or High Duty (HD), Medium Duty (MD) and Low Duty (LD) modes. One of these modes should be
selected to match the load property of your system. Specifications in each mode are printed on the main nameplate. For
details, see Chapter 8 "SPECIFICATIONS."
High Duty: HD mode designed for heavy duty load applications. Overload capability: 150% for 1 min, 200% for 3 s.
Continuous ratings = Inverter ratings
Medium Duty: MD mode designed for medium duty load applications. Overload capability: 150% for 1 min. Continuous
ratings = One rank higher capacity of inverters
Low Duty: LD mode designed for light duty load applications. Overload capability: 120% for 1 min. Continuous ratings
= One rank or two ranks higher capacity of inverters
SOURCE: Number of input phases (three-phase: 3PH), input voltage, input frequency, input current (each for HD, MD
and LD modes)
OUTPUT: Number of output phases, rated output voltage, output frequency range,
rated output capacity, rated output current, overload capability (each for HD, MD and LD modes)
SCCR: Short-circuit capacity
MASS: Mass of the inverter in kilogram (30 kW or above)
SER. No.: Product number
81 A 1 2 3 A 0 0 0 1 Z Serial number of production lot
Production month
1 to 9: January to September
X, Y, or Z: October, November, or December
Production year: Last digit of year
If you suspect the product is not working properly or if you have any questions about your product, contact your Fuji Electric
representative.

1-2
Chap. 1 BEFORE USING THE INVERTER
1.2 External View and Terminal Blocks
(1) Outside and inside views
(a) FRN11G1-4
(b) FRN220G1-4
Figure 1.2 Outside and Inside Views of Inverters
(2) Warning plates and label
(a) FRN11G1-4(b) FRN220G1-4
Figure 1.3 Warning Plates and Label
Note: A box () in the above figures replaces S or E depending on the enclosure.
A box () in the above figures replaces A or E depending on the shipping destination.

1-3
1.3 Precautions for Using Inverters
1.3.1 Precautions in introducing inverters
This section provides precautions in introducing inverters, e.g. precautions for installation environment, power supply lines,
wiring, and connection to peripheral equipment. Be sure to observe those precautions.
Installation environment
Install the inverter in an environment that satisfies the requirements listed in Table 2.1 in Chapter 2.
Fuji Electric strongly recommends installing inverters in a panel for safety reasons, in particular, when installing the ones
whose enclosure rating is IP00.
When installing the inverter in a place out of the specified environmental requirements, it is necessary to derate the inverter
or consider the panel engineering design suitable for the special environment or the panel installation location. For details,
refer to the Fuji Electric technical information "Engineering Design of Panels" or consult your Fuji Electric representative.
The special environments listed below require using the specially designed panel or considering the panel installation
location.
Environments Possible problems Sample measures Applications
Highly concentrated
sulfidizing gas or
other corrosive gases
Corrosive gases cause parts
inside the inverter to corrode,
resulting in an inverter
malfunction.
Any of the following measures may
be necessary.
- Mount the inverter in a sealed
panel with IP6X or air-purge
mechanism.
- Place the panel in a room free
from influence of the gases.
Paper manufacturing,
sewage disposal, sludge
treatment, tire
manufacturing, gypsum
manufacturing, metal
processing, and a
particular process in
textile factories.
A lot of conductive
dust or foreign
material (e.g., metal
powders or shavings,
carbon fibers, or
carbon dust)
Entry of conductive dust into
the inverter causes a short
circuit.
Any of the following measures may
be necessary.
- Mount the inverter in a sealed
panel.
- Place the panel in a room free
from influence of the conductive
dust.
Wiredrawing machines,
metal processing,
extruding machines,
printing presses,
combustors, and industrial
waste treatment.
A lot of fibrous or
paper dust Fibrous or paper dust accumulated on the heat sink
lowers the cooing effect.
Entry of dust into the inverter
causes the electronic circuitry
to malfunction.
Any of the following measures may
be necessary.
- Mount the inverter in a sealed
panel that shuts out dust.
- Ensure a maintenance space for
periodical cleaning of the heat sink
in panel engineering design.
- Employ external cooling when
mounting the inverter in a panel
for easy maintenance and perform
periodical maintenance.
Textile manufacturing and
paper manufacturing.
High humidity or
dew condensation In an environment where a humidifier is used or where
the air conditioner is not
equipped with a
dehumidifier, high humidity
or dew condensation results,
which causes a
short-circuiting or
malfunction of electronic
circuitry inside the inverter.
- Put a heating module such as a
space heater in the panel. Outdoor installation.
Film manufacturing line,
pumps and food
processing.
Vibration or shock
exceeding the
specified level
If a large vibration or shock
exceeding the specified level
is applied to the inverter, for
example, due to a carrier
running on seam joints of
rails or blasting at a
construction site, the inverter
structure gets damaged.
- Insert shock-absorbing materials
between the mounting base of the
inverter and the panel for safe
mounting.
Installation of an inverter
panel on a carrier or
self-propelled machine.
Ventilating fan at a
construction site or a press
machine.
Fumigation for
export packaging Halogen compounds such as methyl bromide used in
fumigation corrodes some
parts inside the inverter.
- When exporting an inverter built
in a panel or equipment, pack
them in a previously fumigated
wooden crate.
- When packing an inverter alone
for export, use a laminated veneer
lumber (LVL).
Exporting.
Storage environment
The storage environment in which the inverter is stored after purchase is different from the operation environment. For details,
refer to the FRENIC-MEGA User's Manual, Chapter 2.

1-4
Chap. 1 BEFORE USING THE INVERTER
Wiring precautions
(1) Route the wiring of the control circuit terminals as far from the wiring of the main circuit as possible. Otherwise electric
noise may cause malfunctions.
(2) Fix the control circuit wires inside the inverter to keep them away from the live parts of the main circuit (such as the
terminal block of the main circuit).
(3) If more than one motor is to be connected to a single inverter, the wiring length should be the sum of the length of the
wires to the motors.
(4) Precautions for high frequency leakage currents
If the wiring distance between an inverter and a motor is long, high frequency currents flowing through stray capacitance
across wires of phases may cause an inverter overheat, overcurrent trip, increase of leakage current, or it may not assure
the accuracy in measuring leakage current. Depending on the operating condition, an excessive leakage current may
damage the inverter.
To avoid the above problems when directly connecting an inverter to a motor, keep the wiring distance 50 m or less for
inverters with a capacity of 3.7 kW or below, and 100 m or less for inverters with a higher capacity.
If the wiring distance longer than the specified above is required, lower the carrier frequency or insert an output circuit
filter (OFL--A) as shown below.
When the inverter drives two or more motors connected in parallel (group drive), in particular, using shielded wires, the
stray capacitance to the earth is large, so lower the carrier frequency or insert an output circuit filter (OFL--A).
No output circuit filter installed Output circuit filter installed
MotorInverter
Power
input
Max. 50 m
Max. 100 m
Inverter Motor
Max. 5 m
Max. 400 m
Output circuit filter
Power
input
For an inverter with an output circuit filter installed, the total secondary wiring length should be 400 m or less (100 m or
less under the vector control).
If further longer secondary wiring is required, consult your Fuji Electric representative.
(5) Precautions for surge voltage in driving a motor by an inverter (especially for 400 V class, general-purpose motors)
If the motor is driven by a PWM-type inverter, surge voltage generated by switching the inverter component may be
superimposed on the output voltage and may be applied to the motor terminals. Particularly if the wiring length is long,
the surge voltage may deteriorate the insulation resistance of the motor. Implement any of the following measures.
- Use a motor with insulation that withstands the surge voltage. (All Fuji standard motors feature reinforced insulation.)
- Connect a surge suppressor unit (SSU50/100TA-NS) at the motor terminal.
- Connect an output circuit filter (OFL--A) to the output terminals (secondary circuits) of the inverter.
- Minimize the wiring length between the inverter and motor (10 to 20 m or less).
(6) When an output circuit filter is inserted in the secondary circuit or the wiring between the inverter and the motor is long,
a voltage loss occurs due to reactance of the filter or wiring so that the insufficient voltage may cause output current
oscillation or a lack of motor output torque. To avoid it, select the constant torque load by setting the function code F37
(Load Selection/Auto Torque Boost/Auto Energy Saving Operation 1) to "1" and keep the inverter output voltage at a
higher level by configuring H50/H52 (Non-linear V/f Pattern, Frequency) and H51/H53 (Non-linear V/f Pattern,
Voltage).
Precautions for connection of peripheral equipment
(1) Phase-advancing capacitors for power factor correction
Do not mount a phase-advancing capacitor for power factor correction in the inverter's input (primary) or output
(secondary) circuit. Mounting it in the input (primary) circuit takes no effect. To correct the inverter power factor, use an
optional DC reactor (DCR). Mounting it in the output (secondary) circuit causes an overcurrent trip, disabling operation.
An overvoltage trip that occurs when the inverter is stopped or running with a light load is assumed to be due to surge
current generated by open/close of phase-advancing capacitors in the power system. An optional DC/AC reactor
(DCR/ACR) is recommended as a measure to be taken at the inverter side.
Input current to an inverter contains a harmonic component that may affect other motors and phase-advancing capacitors
on the same power supply line. If the harmonic component causes any problems, connect an optional DCR/ACR to the
inverter. In some cases, it is necessary to insert a reactor in series with the phase-advancing capacitors.
(2) Power supply lines (Application of a DC/AC reactor)
Use an optional DC reactor (DCR) when the capacity of the power supply transformer is 500 kVA or more and is 10
times or more the inverter rated capacity or when there are thyristor-driven loads. If no DCR is used, the
percentage-reactance of the power supply decreases, and harmonic components and their peak levels increase. These
factors may break rectifiers or capacitors in the converter section of the inverter, or decrease the capacitance of the
capacitors.
If the input voltage unbalance rate is 2% to 3%, use an optional AC reactor (ACR).
3)61800 (IEC 67×
(V) voltage average phase-Three
(V)voltage Min - (V) voltageMax
(%) unbalance Voltage =-
(3) DC reactor (DCR) for correcting the inverter input power factor (for suppressing harmonics)
To correct the inverter input power factor (to suppress harmonics), use an optional DCR. Using a DCR increases the
reactance of inverter’s power source so as to decrease harmonic components on the power source lines and correct the
power factor of the inverter.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]

1-5
DCR models Input power factor Remarks
DCR2/4-/A/B Approx. 90% to 95% The last letter identifies the capacitance.
DCR2/4-C Approx. 86% to 90% Exclusively designed for nominal applied motor of 37 kW
or above.
Select a DCR matching not the inverter but the nominal applied motor. Applicable reactors differ depending
upon the selected HD, MD, or LD mode even on the same type of inverters.
(4) PWM converter for correcting the inverter input power factor
Using a PWM converter (High power-factor, regenerative PWM converter, RHC series) corrects the inverter power factor
up to nearly 100%. When combining an inverter with a PWM converter, disable the main power loss detection by setting
the function code H72 to "0." If the main power loss detection is enabled (H72 = 1 by factory default), the inverter
interprets the main power as being shut down, ignoring an entry of a run command.
(5) Molded case circuit breaker (MCCB) or residual-current-operated protective device (RCD)/earth leakage circuit breaker
(ELCB)
Install a recommended MCCB or RCD/ELCB (with overcurrent protection) in the primary circuit of the inverter to
protect the wiring. Since using an MCCB or RCD/ELCB with a lager capacity than recommended ones breaks the
protective coordination of the power supply system, be sure to select recommended ones. Also select ones with
short-circuit breaking capacity suitable for the power source impedance.
Molded Case Circuit Breaker (MCCB) and
Residual-Current-Operated Protective Device (RCD)/Earth Leakage Circuit Breaker (ELCB)
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode w/ DCR w/o DCR
0.4 FRN0.4G1-25
0.75 FRN0.75G1-25 10
1.5 FRN1.5G1-215
2.2 FRN2.2G1-210 20
3.7 FRN3.7G1-2
HD
20 30
5.5 HD 30 50
FRN5.5G1-2LD
7.5 HD 40 75
FRN7.5G1-2LD
11 HD 50 100
FRN11G1-2LD
15 HD 75 125
FRN15G1-2LD
18.5 HD 150
FRN18.5G1-2LD
22 HD
100 175
FRN22G1-2LD
30 HD 150 200
FRN30G1-2LD
37 HD 175 250
FRN37G1-2LD
45 HD 200 300
FRN45G1-2LD
55 HD 250 350
FRN55G1-2LD
75 HD 350
FRN75G1-2LD
90 HD 400
Three-phase 200 V
110 FRN90G1-2LD 350
--
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode w/ DCR w/o DCR
0.4 FRN0.4G1-4
0.75 FRN0.75G1-45
1.5 FRN1.5G1-45 10
2.2 FRN2.2G1-415
3.7
4.0 FRN3.7G1-4A FRN4.0G1-4E *
HD
10 20
5.5 HD 15 30
FRN5.5G1-4LD
7.5 HD 20 40
FRN7.5G1-4LD
11 HD 30 50
FRN11G1-4LD
Three-phase 400 V
15 FRN15G1-4HD 40 60
Rated current of
MCCB and
RCD/ELCB (A)
Power
supply
voltage
Nominal
applied
motor
(kW)
Inverter type
HD/
MD/
LD
mode w/ DCR w/o DCR
FRN15G1-4LD
18.5 HD 40 75
FRN18.5G1-4LD
22 HD 50 100
FRN22G1-4LD
30 HD 75
FRN30G1-4LD
37 HD
125
FRN37G1-4LD
45 HD
100 150
FRN45G1-4LD
55 HD 125 200
FRN55G1-4LD
75 HD 175
FRN75G1-4LD
90 HD 200
FRN90G1-4MD/LD
110 HD 250
FRN110G1-4MD/LD
132 HD 300
FRN132G1-4MD/LD
160 HD 350
FRN160G1-4MD/LD
200 HD
FRN200G1-4MD/LD
220 HD
500
250 MD
FRN220G1-4LD
280 HD 600
FRN280G1-4MD
315 FRN315G1-4HD
FRN280G1-4LD
FRN315G1-4MD
355 FRN355G1-4HD
800
FRN315G1-4LD
FRN355G1-4MD
400 FRN400G1-4HD
FRN355G1-4LD
450 MD
FRN400G1-4LD
500 HD
1200
FRN500G1-4LD
630 HD 1400
Three-phase 400 V
710 FRN630G1-4LD 1600
--
*4.0 kW for the EU. The inverter type is FRN4.0G1-4E.
Note: A box () in the above table replaces S or E depending on the enclosure.
A box () in the above table replaces A or E depending on the shipping destination.
CTi Automation - Phone: [phone] - Fax: [phone] - Web: www.ctiautomation.net - Email: [email protected]