Fuji Electric Frenic-Sce User manual

High Performance Inverter
Solar Pumping
Instruction Manual
Thank you for purchasing our multifunction FRENIC-Ace series of inverters.
• This product is designed to drive a three-phase motor under variable speed control. Read through
this user's manual and become 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.
Jde085-00031a

Copyright © 2014 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 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.
The purpose of this user's manual is to provide accurate information in handling, setting up
and operating of the FRENIC-Ace series of inverters. Please feel free to send your
comments regarding any errors or omissions you may have found, or any suggestions you
may have for generally improving the manual.
In no event will Fuji Electric Co., Ltd. be liable for any direct or indirect damages resulting
from the application of the information in this manual.

Preface
Thank you for purchasing our multifunction FRENIC-Ace series of inverters for Solar Pumping
application. This product is designed to drive three-phase induction motors or three-phase
permanent magnet synchronous motors under variable speed control.
This manual provides the information on the FRENIC-Ace series of inverters including its
operating procedure when used in Solar Pumping application. Before use, carefully read this
manual for proper use. Improper handling might result in incorrect operation, a short life, or even a
failure of this product as well as the motor.
The table below lists the other materials related to the use of the FRENIC-Ace. Read them in
conjunction with this manual if necessary.
Name Material No. Description
Catalog
24A1-E-0042 Product scope, features, specifications, external drawings,
and options of the product
RS
-485 Communication User's
Manual
24A7-E-0021*
Overview of functions implemented by using FRENIC-Ace
RS-485 communications facility, its communications
specifications, Modbus RTU/Fuji general-purpose inverter
protocol, function codes and related data formats
User
’s Manual for China model 24A7-E-0043x This manual is written in English.
User
’s Manual for China model.
24A7-C-0043x
This manual is written in simplified Chinese.
User
’s Manual for Japanese
model.
24A7-J-0043x This manual is written in Japanese.
*Available soon
x Is the index letter that indicates the manual version. Please refer to the latest one.
The materials are subject to change without notice. Be sure to obtain the latest editions for use.
i

Introduction of FRENIC Ace Solar Pumping
In the Solar Pumping application the inverter drives an electrical motor (pump), while the power is
supplied usually from a PV panel. FRENICAce Solar Pumping inverter specification is equipped
with dedicated functions for the correct operation under these special conditions:
Solar Panel voltage set point calculation at every start (depending on current irradiance
and panel temperature)
True Maximum Power Point Tracking (MPPT) function
Detection of sudden changes of conditions (irradiance)
Stop criteria selectable (frequency and/or power)
Start criteria by solar panel voltage and time (to limit the number of starts)
Dry pump detection function
Water tank maximum level detection function
Low power detection function
Two sets of PID gains
ii

Index
Chapter 1 SAFETY PRECAUTIONS
This chapter describes the safety precautions that should be considered during the whole life of
the product.
Chapter 2 INSTALLATION AND WIRING
This chapter describes the important points in installing and wiring the inverter.
Chapter 3 OPERATION USING THE KEYPAD
This chapter describes keypad operation of the inverter.
Chapter 4 SET UP PROCEDURE
This chapter describes the set up procedure of FRENIC Ace for Solar Pumping application.
Chapter 5 FUNCTION CODES
This chapter explains the function codes relevant for Solar pumping application. For other
parameters not described in this manual please refer to FRENICAce User Manual.
Chapter 6 TROUBLESHOOTING
This chapter describes troubleshooting procedures to be followed when the inverter malfunctions
or detects an alarm or a light alarm condition. In this chapter, first check whether any alarm code or
the "light alarm" indication (
l-al ) is displayed or not, and then proceed to the troubleshooting items.
Chapter 7 SPECIFICATIONS
This chapter describes the power circuit input and output ratings and basic constructive
specifications of FRENICAce standard model.
iii

1-1
Chapter 1 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-Ace 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-Ace may not be used for a life-support system or other purposes directly related to the human
safety.
• Though the FRENIC-Ace 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 FRN0085E2■-4G or 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 DC
reactor 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.

1-2
Wiring
• If no zero-phase current (earth leakage 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 FRN0115E2■-2G / FRN0072E2■-4G or below, or at least ten
minutes for inverters FRN0085E2■-4G 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.

1-3
Operation
• Be sure to mount the front cover before turning the power 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. If the alarm is released while any 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 User's Manual, the
motor may rotate with a torque or at a speed not permitted for the machine.
• Starting auto-tuning involves motor rotation. Sufficiently check that motor rotation brings no danger
beforehand.
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, L3/T, L1/L and L2/N, voltage may be output to inverter output terminals U, V, and W.
• 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.

1-4
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 FRN0115E2■-2G / FRN0072E2■-4G or below, or at least ten minutes for inverters
FRN0085E2■-4G 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 be useful when performing certain settings or operations.

This icon indicates a reference to more detailed information.

Chapter 2 INSTALLATION AND WIRING
2.1 Installation
(1) Installation Environment
Please install FRENIC-Ace in locations which meet the conditions specified in “Chapter 1 1.3.1 Usage
environment” of the User Manual.
(2) Installation Surface
Please install the inverter on non-combustible matter such as metals. Also, do not mount it upside down or
horizontally.
Install on non-combustible matter such as metals.
Risk of fire exists
(3) Surrounding Space
Secure the space shown in Figure 2.1
-1 and Table 2.1-1. When
enclosing
FRENIC-Ace in cabinets, be sure to provide adequate
ventilation
to the cabinet, as the surrounding temperature may rise. Do
not contain
it in small enclosures with low heat dissipation capacity.

Installation of Multiple Inverters
When installing 2 or m
ore units in the same equipment or cabinet,
generally mount
them to the side of each other, not above each other.
When the inverters are mounted
above each other, attach partitioning
boards to prevent
that the heat dissipated from the lower inverter to
affect
s the upper inverter.
For
types FRN0072E2-4G, FRN0220E2-2G or below and for
ambient temperature below 4
0°C only, the units can be installed
side by
side without any spacing between them
(30°C or lower for ND and HD).
Table 2.1-1 Surrounding Space mm (inch)
Applicable Capacity A B C
200 V class: FRN0001 to 0220E2-2G
200 V class: FRN0001 to 0012E2-7G
400 V class: FRN0002 to 0072E2-4G 10
(0.39) 100
(3.9)
0 *1
400 V class: FRN0085 to 0590E2-4G 50
(1.97) 100 (3.9)
*1 A clearance of 50 mm is required to use RJ45 connector.
C: Space in front of the inverter unit
Installation with External Cooling
The
external cooling installation reduces the generated heat inside the
panel
by dissipating approximately 70% of the total heat generated
(total heat loss)
by mounting the cooling fins protruding outside the
equipment or cabinet.
Installation with external co
oling is possible for types FRN0069E2■-2G
and
FRN0072E2■-4G or below by adding attachments (optional) for
external cooling,
and for types FRN0085E2■-4G or above by moving
the
mounting bases.
Figure 2.1-2 Installation with External
Cooling
Please refer to User Manual Chapter 11 Item 11.15 for the external
dimensions
drawing of the external cooling attachment (optional).
Prevent lint, wastepaper, wood shavings, dust, metal scrap, and
other foreign material from entering the inverter or from attaching to
the cooling fins.
Risk of fire and risk of accidents exist
To install the FRN0085E2■-4G inverter with external cooling, change the mounting position of the mounting bases
following the procedure in Figure 2.1-3.
As the type and number of screws differ by inverter type, please review the following table.
Figure 2.1-1 Installation Direction
2-1

Table 2.1-2 Type and Number of Screws, and Tightening Torque
Inverter type Mounting base fixation screw
Case attachment screw
Tightening torque
Nm (Ib-in)
FRN0085E2■-4G
to FRN0168E2■-4G
M6×20 (5 screws on top
，
3
screws on bottom)
M6×20
(2 screws on top only)
5.8 (51.3)
FRN0203E2■-4G
M6×20 (3 screws on top and
bottom each)
M6×12
(3 screws on top only)
5.8 (51.3)
FRN0240E2■-4G
to FRN0290E2■-4G
M5×12 (7 screws on top and
bottom each)
M5×12
(7 screws on top only)
3.5 (31.0)
FRN0361E2■-4G
to FRN0415E2■-4G
M5×16 (7 screws on top and
bottom each)
M5×16
(7 screws on top only)
3.5 (31.0)
FRN0520E2■-4G
to FRN0590E2■-4G
M5×16 (8 screws on top and
bottom each)
M5×16
(8 screws on top only)
3.5 (31.0)
1) Remove all of the mounting base fixation screws and the case attachment screws on the top of the inverter.
2) Fix the mounting bases to the case attachment screw holes using the mounting base fixation screws. A few
screws should remain after changing the position of the mounting bases.
3) Change the position of the mounting bases on the bottom side following the procedure in 1) and 2).
Figure 2.1-3 Method to Change the Mounting Base Positions
Use the specified screws in changing the mounting bases.
Risk of fire and risk of accidents exist
Inverter unit installation screw size.
Select the bolt size, considering the thickness of the mounting feet and installation surface so that the bolt
protrudes from the nut by 2 threads or more.
Inverter type
Inverter fixation screw
Tightening torque Nm (Ib-in)
200V class
：
FRN0030/0040E2
■
-2G
400V class
：
FRN0022/0029E2
■
-4G
M5 (4 screws) 3.5 (31.0)
200V class
：
FRN0056/0069E2
■
-2G
400V class
：
FRN0037E2■-4G to RN0203E2■-4G
M8 (4 screws) 13.5 (119)
400V class
：
FRN0240E2■-4G to RN0415E2■-4G
M12 (4 screws)
48 (425)
400V class
：
FRN0520E2■-4G to RN0590E2■-4G
M12 (6 screws)
48(425)
Mounting base fixation screw
Mounting base
(upper side)
Mounting base
(lower side)
Mounting base fixation screw
Case attachment screw
2-2

2.2 Wiring
This chapter describes the basic connection diagram alternatives for Solar Pumping application.
2.2.1 Input and output control signals.
Table 2.2-1 describes the input control signals to the inverter.
Table 2.2-1 Input control signals to the inverter.
INPUT DESCRIPTION SYMBOL
[12]
Water tank level analog signal. The signal from the water level sensor of the tank can
be connected to this input. The inverter will stop when the tank level becomes higher
than the level programmed in parameter U128. In order to use this signal, connect the
sensor to this input and set the desired tank level above which the pump has to stop. If
this signal is not used, set a high level in parameter U128 to avoid that the inverter
stops.
TANK LEVEL
[FWD] Run command in the FWD direction FWD
[REV] Run command in the REV direction REV
[X1]
Water tank high level digital signal. This signal is ON when the level of the tank is high.
The inverter will stop when this signal is ON. In order to use this signal, simply connect
it to the inverter; it is not required to enable it by function code.
TANK HL
Table 2.2-2 describes the output control signals from the inverter. The assignment of the outputs can
be changed if required. To do so, change the settings of parameters E20, E21, E27.
Table 2.2-2 Output control signals from the inverter.
OUTPUT DESCRIPTION SYMBOL
[Y1]
Tank full output signal. This signal indicates that the water tank is full. In this situation
the inverter will not be allowed to RUN, therefore this signal is useful to
indicate/diagnose the cause of the stop.
TANK FULL
[Y2]
Low power output signal. This signal indicates that the output power is low. In case
that this signal is ON and the solar irradiance is high, it is useful to detect/diagnose that
there is a problem in the PV solar panel (for example dust, or the panel has been
covered).
LOW POWER
[30A/B/C]
This relay output is used to indicate that the inverter has tripped by alarm. The alarm
code is displayed in the inverter keypad.
ALM
2.2.2 Inverter supplied from PV panel only
There are two alternatives of connecting the PV panel to the inverter:
(1) Connected to the DC bus terminals P(+), N(-). In this case the precharging circuit of the inverter is not
used. Therefore, when the PV panel is connected to the inverter, high current may flow through at the
initial stage because the inverter DC link capacitor is discharged. In order to avoid the high charging
current, there are some alternatives:
odo not make the connection when the PV panel is already receiving strong irradiation, or
oinsert a pre-charging circuit in the connection between (+) (PV panel positive pole) and P(+), or
ouse the connection alternative (2) described in following pages.
2-3

R
Ｆ
Direct current
reactor (option)
DB Ｎ(-)
P(+)P1
U
V
W
U
V
WM
３～
C
L1/R
L2/S
L3/T
G
Ground
terminal
(Note 6)
TH1
THC
PTC
thermistor
To [11]
To [C1]
)
R1
T1
R0
T0
Auxiliary power
input for fan
(Note 5)
｛
(Note 11)
DC/DC
(PLC)
(FWD
)
(REV
)
(X1)
(X2)
(X3)
(X4)
(X5)
(CM)
(EN1)
SINK
SOURCE
(EN2)
0V
+24VDC
<Y1>
<Y2>
<CMY>
[FM]
[11]
0V
G
E
DX+
DX-
SW6
(Note 12)
SW1
(Note 12)
(Note 8)
(Note 9)
(Note 10)
(Note 10)
Safety signal
SW5
(Note 12)
30C
30B
30A
30
Current output
(4(0) to 20 mA DC)
Voltage output
(0 to +10 V DC)
Pulse output
(25 to 32kp/s)
・Power supply voltage switching
connector “CN UX”
・Fan power supply connector “CN R” /
“CN W”
(Note 10)
CAN+
CAN-
SW6
(Note 12)
RJ45 Connector
(Note 9)
(Note 14)
(PLC)
Charge
lamp
RJ45 connector
SW2
(Note 12)
Option
connector
FMI
FMV
FMP
Motor
Data transmission and
reception (RS-485)
Keypad
Detachable terminal block
Voltage input V2
(0 to +10 V DC)
〔11〕
〔12〕
〔13〕
(Note 9)
+10VDC
Current input C1
(4(0) to 20 mA DC)
PTC thermistor input
0V
〔C1〕
Voltage input 12
(0 to +10VDC)
(0 to ±10VDC)
SW4
PTC
AI
(Note 12)
(Note 12)
SW3
C1
V2
0V
Grounding
terminal
(Note15)
(Note 15)
(Note 15)
U1
U2
CN UX
FAN NC
CN RCN W
Circuit breaker
(MCCB)
R1
R2
Rx
(+)
(-)
Run forward command (FWD)
Run reverse command (REV)
Tank High Level
detection (TANK HL)
Alarm output
(ALM)
Tank level
detection (TANK
LEVEL)
TANK FULL
LOW POWER
(Note 4)
Figure 2.2-1 Wiring diagram when inverter is supplied from PV panel connected to DC bus terminals.
When using this wiring please ensure that the motor is not regenerating. In case of regeneration the DC link
voltage of the inverter will rise damaging the PV panels. In order to avoid regeneration when operation command
is removed please set function code H11=1 (Coast to a stop). If regeneration cannot be avoided (for example,
controlled deceleration is always required), please use connection alternative (2) below.
(2) Connected to the AC supply inputs and N(-). In this case the precharging circuit of the inverter is used,
limiting the initial charging current of the inverter DC link capacitor. In this case be aware that the
maximum frequency of charging cycles is two times per hour. When using this connection the current
rating of the input rectifier must be considered. Please consult Fuji Electric to make the inverter
selection.
2-4

R
Ｆ
Direct current
reactor (option)
DB Ｎ(-) P(+)P1
U
V
W
U
V
WM
３～
C
L1/R
L2/S
L3/T
G
Ground
terminal
(Note 6)
TH1
THC
PTC
thermistor
To [11]
To [C1]
)
R1
T1
R0
T0
Auxiliary power
input for fan
(Note 5)
｛
(Note 11)
DC/DC
(PLC)
(FWD)
(REV)
(X1)
(X2)
(X3)
(X4)
(X5)
(CM)
(EN1)
SINK
SOURCE
(EN2)
0V
+24VDC
Run forward command (FWD)
Run reverse command (REV)
Tank High Level
detection (TANK HL)
<Y1>
<Y2>
<CMY>
[FM]
[11]
0V
G
E
DX+
DX-
SW6
(Note 12)
SW1
(Note 12)
(Note 8)
(Note 9)
(Note 10)
(Note 10)
Safety signal
SW5
(Note 12)
30C
30B
30A
Alarm output
(ALM)
30
Current output
(4(0) to 20 mA DC)
Voltage output
(0 to +10 V DC)
Pulse output
(25 to 32kp/s)
・Power supply voltage switching
connector “CN UX”
・Fan power supply connector “CN R” /
“CN W”
(Note 10)
CAN+
CAN-
SW6
(Note 12)
RJ45 Connector
(Note 9)
(Note 14)
(PLC)
Charge
lamp
RJ45 connector
SW2
(Note 12)
Option
connector
FMI
FMV
FMP
Motor
Data transmission and
reception (RS-485)
Keypad
Detachable terminal block
Voltage input V2
(0 to +10 V DC)
〔11〕
〔12〕
〔13〕
(Note 9)
+10VDC
Current input C1
(4(0) to 20 mA DC)
PTC thermistor input
0V
〔C1〕
Voltage input 12
(0 to +10VDC)
(0 to ±10VDC)
SW4
PTC
AI
(Note12)
(Note 12)
SW3
C1
V2
0V
Grounding
terminal
Tank level
detection (TANK
LEVEL)(Note 15)
(Note 15)
(Note 15)
U1
U2
CN UX
FAN NC
CN RCN W
Circuit breaker
(MCCB)
R1
R2
Rx
TANK FULL
LOW POWER
(+)
(-)
(Note 4)
Figure 2.2-2 Wiring diagram when inverter is supplied from PV panel connected to AC input and N(-) terminals.
2-5

2.2.3 Inverter supplied from PV panel and AC supply
When the inverter can be supplied from PV panel and AC supply at the same time, as shown in figure 2.2-4,
please insert magnetic contactors in both PV panel supply and AC supply and make the necessary interlock to
avoid that both supplies are connected at the same time. Additionally to the magnetic contactors, insert blocking
diodes with the suitable rating between the PV panel and the inverter.
R
Ｆ
Direct current
reactor (option)
DB Ｎ(-) P(+)P1
U
V
W
U
V
WM
３～
C
L1/R
L2/S
L3/T
Magnetic
contactor (MC)
Circuit breaker
(MCCB) or earth
leakage breaker
(ELCB)
G
Ground
terminal
(Note 2, 3)
(Note 6)
TH1
THC
PTC
thermistor
To [11]
To [C1]
)
R1
T1
R0
T0
Auxiliary power
input for fan
(Note 5)
｛
(Note 11)
DC/DC
(PLC)
(FWD)
(REV)
(X1)
(X2)
(X3)
(X4)
(X5)
(CM)
(EN1)
SINK
SOURCE
(EN2)
0V
+24VDC
<Y1>
<Y2>
<CMY>
[FM]
[11]
0V
G
E
DX+
DX-
SW6
(Note 12)
SW1
(Note 12)
(Note 8)
(Note 9)
(Note 10)
(Note 10)
Safety signal
SW5
(Note 12)
30C
30B
30A
30
Current output
(4(0) to 20 mA DC)
Voltage output
(0 to +10 V DC)
Pulse output
(25 to 32kp/s)
・Power supply voltage switching
connector “CN UX”
・Fan power supply connector “CN R” /
“CN W”
(Note 10)
CAN+
CAN-
SW6
(Note 12)
RJ45 Connector
(Note 9)
(Note 14)
(PLC)
Charge
lamp
RJ45 connector
SW2
(Note 12)
Option
connector
FMI
FMV
FMP
Motor
Data transmission and
reception (RS-485)
Keypad
Detachable terminal block
Voltage input V2
(0 to +10 V DC)
〔11〕
〔12〕
〔13〕
(Note 9)
+10VDC
Current input C1
(4(0) to 20 mA DC)
PTC thermistor input
0V
〔C1〕
Voltage input 12
(0 to +10VDC)
(0 to ±10VDC)
SW4
PTC
AI
(Note12)
(Note 12)
SW3
C1
V2
0V
Grounding
terminal
(Note 15)
(Note 15)
(Note 15)
U1
U2
CN UX
FAN NC
CN RCN W
200V system
200V to 240V
50/60 Hz
400V system
380V to 480V
50/60 Hz
Circuit breaker
(MCCB)
R1
R2
Rx
(+)
(-)
Magnetic
contactor (MC)
(Note 2, 3)
Run forward command (FWD)
Run reverse command (REV)
Tank High Level
detection (TANK HL)
Alarm output
(ALM)
Tank level
detection (TANK
LEVEL)
TANK FULL
LOW POWER
(Note 4)
Figure 2.2-3 Wiring diagram when inverter is supplied from PV panel and AC supply.
2-6

•The PV panel is a DC voltage/current source. Therefore in all cases please ensure that the polarity is
respected when performing the connection between the inverter and the PV panel, otherwise either
equipment may be damaged
Risk of fire and risk of damage exist.
Notes for all drawings:
(Note 1) Install recommended circuit breakers (MCCB) or residual-current-operated protective device (RCD)/
earth leakage breakers (ELCB) (with overcurrent protective function) on the inputs of each inverter
(primary side) for wiring protection. Do not use breakers which exceed the recommended rated current.
(Note 2) Install recommended magnetic contactors (MC) as necessary on each inverter as these will be used to
disconnect the inverter from the power supply separately from the MCCB or the RCD / ELCB.
Additionally, when installing coils such as MC or solenoid close to the inverter, connect surge absorbers
in parallel.
(Note 3) Make the necessary interlock to avoid that both PV panel supply and AC supply are connected at the
same time. Not preventing this may cause damage to the equipment.
(Note 4) Used for the protection of the PV panel and the wiring. Alternatively fuses can be also used. Please
use recommended types by the PV panel maker. The use of additional protection devices (like surge
protection devices) may be also recommended by the PV panel maker.
(Note 5) Use this terminal when supplying the inverter with DC voltage from the PV panel. Applicable for types
FRN0203E2■-4G or above. Please consult Fuji Electric.
(Note 6) Remove the shorting bar between the inverter main circuit terminals P1-P(+) before connecting the
direct current reactor (DCR) (option).
It must be connected in the following cases:
ND mode: Types FRN0139 E2■-4G or above, HD/ HND mode: Types FRN0168E2■-4G or above, HHD
mode: Types FRN0203E2■-4G or above.
Use the direct current reactor (option) when the power supply transformer capacity is above 500 kVA
and the transformer capacity is over 10 times the rated capacity of the inverter, or when “thyristor load
exists” in the same power system. In case of PV panel supply only, DCR is not required for any
capacity.
(Note 8) This terminal is used for grounding the motor. Grounding the motor using this terminal is recommended
in order to suppress inverter noise.
(Note 9) Use twisted lines or shielded lines for the control signals.
Generally, the shielded line requires grounding, but when the effect of externally induced noise is large,
connecting to [CM] may suppress the effect of noise. Separate the line from the main circuit wiring and
do not enclose in the same duct. Separation distance of over 10 cm is recommended. When crossing
the main circuit wiring, make the intersection perpendicular.
(Note 10) The various functions listed for terminals [X1] to [X5] (digital inputs), terminals [Y1] to [Y2] (transistor
outputs), and terminal [FM] (monitor output) show the recommended functions for Solar Pumping
application.
(Note 11) These are connectors for switching the main circuit. For details, refer to “2.2.7 Switching connectors”.
(Note 12) The various switches on the control printed circuit board define the settings for the inverter operation.
For details, refer to “2.2.6 Operating slide switches”.
(Note 14) Shorting bars are connected between the safety function terminals [EN1], [EN2], and [PLC] as factory
default. Remove the shorting bars when using this function.
(Note 15) and are separated and insulated.
(Note 16) Charge lamp does not exist in the inverters FRN0069E2■-2G/FRN0044E2■-4G/FRN0012E2■-7G or
below.
0V
0V
2-7

2.2.4 Removal and attachment of the front cover/terminal cover and wiring guide
Always remove the RS-485 communication cable from the RJ-45 connector before removing the front cover.
Risk of fire and risk of accidents exist.
(1) Types FRN0020E2■-2

/ FRN0012E2■-4

/ FRN0011E2■-7

or below
1) Loosen the screws of the terminal cover. To remove the terminal cover, put your finger in the dimple of the
terminal cover and then pull it up toward you.
2) Pull out the wiring guide toward you.
3) After routing the wires, attach the wiring guide and the terminal cover reversing the steps above.
Figure 2.2-1 Removal of the Terminal Cover and the Wiring Guide (for FRN0006E2S-2)
(2) Types FRN0030E2■-2

to FRN0069E2■-2

and FRN0022E2■-4

to FRN0044 E2■-4

1) Loosen the screws of the terminal cover. To remove the terminal cover, put your finger in the dimple of the
terminal cover and then pull it up toward you.
2) Pull out the wiring guide toward you.
3) After routing the wires, attach the wiring guide and the terminal cover reversing the steps above.
Figure 2.2-2 Removal of the Terminal Cover and the Wiring Guide (for FRN0069E2■-2)
2-8

(3) Types FRN0088E2■-2

/ FRN0115E2■-2

/ FRN0072E2■-4

/ FRN0085E2■-4

1) Loosen the screws of the front cover. Hold both sides of the front cover with the hands, slide the cover
downward, and pull. Then remove it to the upward direction.
2) Push the wiring guide upward and pull. Let the wiring guide slide and remove it.
3) After routing the wires, attach the wiring guide and the front cover reversing the steps above.
Figure 2.2-3 Removal of the Front Cover and the Wiring Guide (for FRN0072E2■-4)
(4) Types FRN0085E2■-4

or above
1) Loosen the screws of the front cover. Hold both sides of the front cover with the hands and slide it upward to
remove.
2) After routing the wires, align the front cover top edge to the screw holes and attach the cover reversing the
steps in Figure 2.2-4.
Open the keypad case to view the control printed circuit board.
Tightening torque: 1.8 N·m(15.9 Ib-in) (M4)
3.5 N·m(31.0 Ib-in) (M5)
Figure 2.2-4 Removal of the front cover (for FRN0203E2■-4)
Screw
Screw
Front cover
Keypad case
Front
cover attachment screw
Front cover
Wiring guide
Push upward and pull.
Let the guide slide.
2-9

2.2.5 Main circuit terminals
Terminal layout diagram (main circuit terminals)
Figure 2.2-7 Main circuit terminals layout
The following terminals will have high voltage when power is ON.
Main circuit: L1/R, L2/S, L3/T, P1, P(+), N(-), DB, U, V, W, R0, T0, R1, T1
Insulation level
Main circuit - Casing : Basic insulation (overvoltage category III, degree of contamination 2)
Main circuit - Control circuit : Enhanced insulation (overvoltage category III, degree of contamination 2)
Risk of electric shock exists
For recommended wire sizes please refer to the User Manual.
2-10