Fuji Electric FVR0.75AS1S-4 Reference guide

Advanced simple Inverter
FVR-Micro
Thank you for purchasing our FVR-Micro 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 quick guide to the end user of this product. Keep this in a safe place until this
product is discarded.
For more details, refer to the instruction manual on website.
Web site : https://felib.fujielectric.co.jp/download/search.htm?site=global&lang=en
QR code :
Fuji Electric Co., Ltd. INR-SI47-2142a-E
Brief Manual

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 con-
sequences. These safety precautions are of utmost importance and must be observed at all times.
Operation
Be sure to install the terminal block cover before turning the power on. Do not remove the
cover while power is applied.
Otherwise electric shock could occur.
Do not operate switches with wet hands.
Doing so could cause electric shock.
If the retry function has been selected, the inverter may automatically restart and drive
the motor depending on the cause of tripping.
(Design the machinery or equipment so that human safety is ensured after restarting.)
If the stall prevention function (current limiter), automatic deceleration, and overload
prevention control have been selected, the inverter may operate at an acceleration
/deceleration time or frequency different from the set ones. Design the machine so that
safety is ensured even in such cases.
Otherwise an accident could occur.
The STOP key is only effective when function setting (Function code F02) is established
to enable the STOP key. Prepare an emergency stop switch separately. If you disable
the STOP key priority function and enable operation by external commands, you cannot
emergency-stop the inverter using the STOP key on the built-in keypad.
If an alarm reset is made with the operation signal turned on, a sudden start will occur.
Ensure that the operation signal is turned off in advance.
Otherwise an accident could occur.
1

Item Specifications
Site location
Indoors
Ambient
temperature
-10 to +50°C (IP20) (Note 1)
Relative
humidity 5 to 95% (No condensation)
Atmosphere
The inverter must not be exposed to dust,
direct sunlight, corrosive gases, flammable
gas, oil mist, vapor or water drops. (Note 2)
The atmosphere can contain only a low
level of salt.
(0.01 mg/cm2or less per year)
The inverter must not be subjected to
sudden changes in temperature that will
cause condensation to form.
Altitude 1,000 m max. (Note 3)
Atmospheric
pressure 86 to 106 kPa
Vibration
3 mm (Max. amplitude) 2 to less than 9 Hz
9.8 m/s29 to less than 20 Hz
2 m/s220 to less than 55 Hz
1 m/s255 to less than 200
Hz
1. Operating Environment
Install the inverter in an environment that satisfies the requirements listed in
Table 1.1 Environmental Requirements
Table 1.2 Output Current Derating Factor
in Relation to Altitude
2. Installing the Inverter
(1) Mounting base
The temperature of the heat sink may rise up to
approx. 90°C during operation of the inverter, so the
inverter should be mounted on a base made of
material that can withstand temperatures of this
level.
Install the inverter on a base made of metal or
other non-flammable material.
A fire may result with other material.
(2) Clearances
Ensure that the minimum clearances indicated in
Figure 2.1 are maintained at all times. When
installing the inverter in the panel of your system,
take extra care with ventilation inside the panel as
the temperature around the inverter tends to
increase.
Figure 2.1 Mounting Direction and
Required
Clearances
Altitude Output current
derating factor
1000 m or lower 1.00
1000 to 1500 m 0.97
1500 to 2000 m 0.95
2000 to 2500 m 0.91
2500 to 3000 m 0.88
(Note 1)
When inverters are mounted side-by-
side without any gap between them, the
ambient temperature should be within the
range from -10 to +40°C.
(Note 2)
Do not install the inverter in an
environment where it may be exposed to
cotton waste or moist dust or dirt which will
clog the heat sink in the inverter. If the
inverter is to be used in such an
environment, install it in the panel of your
system or other dustproof containers.
(Note 3)
If you use the inverter in an altitude
above 1000 m, you should apply an output
current derating factor as listed in Table 2.2.
Left
10 mm
Right
10 mm
Bottom100 mm
FVR-Micro
Top 100 mm
2

When mounting two or more inverters
When mounting two or more inverters in the same unit or panel, basically lay them out side by
side. As long as the ambient temperature is 40°C or lower, inverters can be mounted side by
side without any clearance between them. When the inverters necessarily mounted one above
the other be sure to separate them with a partition plate or the like so that any heat radiating
from an inverter will not affect the one(s) above.
(3) Mounting direction
Secure the inverter to the mounting base with four screws or bolts (M4) so that the FVR-Micro logo
faces outwards. (FVR0.4AS1S-7 and FVR0.75AS1S-7 use two screws or bolts.) Tighten those
screws or bolts perpendicular to the mounting base. (Maximum torque is 0.6N∙m)
Do not mount the inverter upside down or horizontally. Doing so will reduce the
heat dissipation efficiency of the inverter and cause the overheat protection function to
operate, so the inverter will not run.
Prevent lint, paper fibers, sawdust, dust, metallic chips, or other foreign materials from getting
into the inverter or from accumulating on the heat sink.
This may result in a fire or accident.
3. Wiring
Follow the procedure below. (In the following description, the inverter has already been installed.)
3.1 Removing and mounting the terminal block covers
(1) Loosen the screw securing the control circuit terminal block cover.
(2) Insert your finger in the cutout (near "PULL") in the bottom of the control circuit terminal
block cover, and then pull the cover towards you.
(3) Hold both sides of the main circuit terminal block cover between thumb and forefinger and
slide it towards you.
(4) After performing wiring, mount the main circuit terminal block cover and control circuit
terminal block cover in the reverse order of removal.
[ Removing the Terminal Block Covers ]
Control circuit terminal
block cover screw
Control circuit terminal
block cover
Main circuit terminal
block cover
3

3.2 Terminal arrangement and screw specifications
The figures below show the arrangement of the main and control circuit terminals which differ
according to inverter type. The two terminals prepared for grounding, which are indicated by the
symbol G in Figures A to C, make no distinction between the power supply side (primary circuit)
and the motor side (secondary circuit).
(1) Arrangement of the main circuit terminals
Table 3.1 Main Circuit Terminals
Power supply
voltage
Nominal
Ap plied
m
otor(kW) Inverter type Terminal screw
size
Tightening torque
(N·m) Refer to:
Three- phase
400 V
0.4
FVR0.4AS1S-4
M4 1.2 Fig A
0.75
FVR0.75AS1S-4
1.5
FVR1.5AS1S-4
2.2
FVR2.2AS1S-4
3.7
FVR3.7AS1S-4
Single- phase
200 V
0.4
FVR0.4AS1S-7
M3 0.5 Fig B
0.75
FVR0.75AS1S-7
1.5
FVR1.5AS1S-7
M4 1.2 Fig C
2.2
FVR2.2AS1S-7
Figure A
Figure B
Figure C
4

(2) Arrangement of the control circuit terminals (common to all FVR-Micro models)
Y1 Y1E FMA C1 PLC X1 X2 X3
DX+ DX- 13 12 11 FWD REV CM
30A 30B 30C
8 7 6 5 4 3 2 1
1 : 5V
2 : Ground
3 : NC
4 : DX-
5 : DX+
6 : NC
7 : Ground
8 : 5V
Screw size : M2.5 Tightening torque : 0.4Nm
Table 3.2 Control Circuit Terminals
Terminal
symbol
Screwdriver
(Shape of tip, B x A)
Thickness of tip: B
Allowable wire size
Bare wire
length
Ferrule terminal*
Opening dimension in
the terminal
block
First row in
the box
[Y1]~[X3]
Flat screwdriver
(0.6 x 3.5 mm) AWG22 to AWG14
(0.34 to 2.1 mm2) 4.5 to 5 mm 5 (W) x 2.5 (H) mm
Other than
the above Flat screwdriver
(0.6 x 3.5 mm) AWG24 to AWG14
(0.25 to 2.1 mm2) 5 to 6 mm 2.3 (W) x 2.5 (H) mm
Table 3.3 Recommended Ferrule Terminals
Screw size Wire size
Type (216- )
With insulated collar Without insulated collar
Short type Long type Short type Long type
M2 or M2.5
AWG22 (0.34 mm
2
)
322
302
152
132
AWG20 (0.50 mm
2
)
221 201 121 101
AWG18 (0.75 mm2 )
222
202
122
102
The length of bared wires to be inserted into ferrule terminals is 5.0 mm or 8.0 mm for the short
or long type, respectively.
The following crimping tool is recommended: Variocrimp 4 (Part No. 206-204).
5

3.3 Recommended wire sizes
Table 2.6 lists the recommended wire sizes. The recommended wire sizes for the main circuit
terminals for an ambient temperature of 50°C are indicated for two types of wire: HIV single wire (for
the maximum allowable temperature 75°C).
Table 3.4 Recommended Wire Sizes
Power supply
voltage
Nomi-
nal
applied
motor
(kW)
Inverter type
*1
Recommended wire size (mm2 )
Main
iit
Control
circuit
Main circuit power input
[L1/R, L2/S, L3/T] [L1/L,
L2/N] Grounding
[G]
Inverter
output
[U, V, W]
Braking
resistor
[P, DB]
w/o DCR
Three-phase
400 V
0.4
FVR0.4AS1S-4
2.0(2.0)
0.5
0.75
FVR0.75AS1S-4
1.5
FVR1.5AS1S-4
2.2
FVR2.2AS1S-4
3.7
FVR3.7AS1S-4
Single-phase
200 V
0.4
FVR0.4AS1S-7
2.0(2.0)
2.0(2.0)2.0(2.5)
0.75
FVR0.75AS1S-7
1.5
FVR1.5AS1S-7
2.0(3.5)
2.2
FVR2.2AS1S-7
5.5(5.5)
*1 Use crimp terminals covered with an insulated sheath or insulating tube. Recommended wire sizes are for
HIV/IV (PVC in the EU).
To prevent the risk of hazardous accidents that could be caused by damage of the inverter,
install the specified MCCB in the supply side (primary side) according to the following tables.
- Breaking capacity: Min. 10 kA
- Rated voltage: Min. 500 V
Power
supply
voltage
Appli-
cable
motor
rating
(kW)
Inverter type
Fuse
Rating
(A)
Rated
Current(A)
of MCCB
(w/o DCR)
Three-
phase
400 V
0.4
FVR0.4AS1S- 4
3
6
0.75
FVR0.75AS1S -4
6
1.5
FVR1.5AS1S -4
10
10
2.2
FVR2.2AS1S -4
15
15
3.7
FVR3.7AS1S -4
20
20
Single-
phase
200 V
0.4
FVR0.4AS1S -7
10
10
0.75
FVR0.75AS1S -7
15
15
1.5
FVR1.5AS1S -7
30
20
2.2
FVR2.2AS1S -7
40
35
6

3.4 Wiring for main circuit terminals and grounding terminals
Follow the procedure below. Figure 3.1 illustrates the wiring procedure with peripheral equipment.
Wiring procedure
①Grounding terminal G*1
②Inverter output terminals (U, V, and W) and grounding terminal G*1
③Braking resistor connection terminals (P and DB)*2
④Main circuit power input terminals (L1/R, L2/S and L3/T) or (L1/L and L2/N)
*1 Use either one of these two grounding terminals on the main circuit terminal block.
*2 Perform wiring as necessary.
Figure 3.1 Wiring procedures for Peripheral Equipment
7

The wiring procedure for the FVR0.75AS1S-4 is given below as an example. For other inverter
types, perform wiring in accordance with their individual terminal arrangement.
①
Grounding terminal ( G)
Be sure to ground either of the two grounding terminals for safety and noise reduction. It is
stipulated by the Electric Facility Technical Standard that all metal frames of electrical equipment
must be grounded to avoid electric shock, fire and other disasters.
Grounding terminals should be grounded as follows:
1) Ground the inverter in compliance with the national or local electric code.
2) Connect a thick grounding wire with a large surface area. Keep the wiring length as short as
possible.
②
Inverter output terminals, U, V, W and grounding terminal ( G)
1) Connect the three wires of the three-phase motor to terminals U, V, and W, aligning phases
each other.
2) Connect the grounding wire of terminals U, V, and W to the grounding terminal ( G).
The wiring length between the inverter and motor should not exceed 50 m. If it exceeds
50 m, it is recommended that an output circuit filter (option) be inserted.
Do not use one multicore cable to connect several inverters with motors.

Do not connect a phase-advancing capacitor or surge absorber to the inverter’s output
lines (secondary circuit).
If the wiring length is long, the stray capacitance between the wires will increase,
resulting in an outflow of the leakage current. It will activate the overcurrent protection,
increase the leakage current, or will not assure the accuracy of the current display. In
the worst case, the inverter could be damaged.
If more than one motor is to be connected to a single inverter, the wiring length should
be the total length of the wires to the motors.
8

Driving 400 V series motor
If a thermal relay is installed in the path between the inverter and the motor to protect
the motor from overheating, the thermal relay may malfunction even with a wiring
length shorter than 50 m. In this situation, add an output circuit filter (option) or lower
the carrier frequency (Function code F26: Motor sound (Carrier frequency)).
If the motor is driven by a PWM-type inverter, surge voltage that is 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. Consider any of the
following measures.
- Use a motor with insulation that withstands the surge voltage.
- Connect an output circuit filter (option) to the output terminals (secondary circuits) of
the inverter.
- Minimize the wiring length between the inverter and motor (10 to 20 m or less).
③
Braking resistor terminals, P and DB
1) Connect terminals P and DB of a braking resistor (option) to terminals P and DB on the main
circuit terminal block.
2) Arrange the inverter and braking resistor to keep the wiring length to 5 m or less and twist the
two wires or route them together in parallel.
④
Main circuit power input terminals, L1/R, L2/S, and L3/T (for three-phase voltage input) or
L1/L and L2/N (for single-phase voltage input)
1) For safety, make sure that the molded case circuit breaker (MCCB) or magnetic contactor
(MC) is turned off before wiring the main circuit power input terminals.
2) Connect the main circuit power supply wires (L1/R, L2/S and L3/T or L1/L and L2/N) to the
input terminals of the inverter via an MCCB or residual-current-operated protective device
(RCD)/earth leakage circuit breaker (ELCB)*, and MC if necessary.
It is not necessary to align phases of the power supply wires and the input terminals of the
inverter with each other.
* With overcurrent protection
It is recommended that a magnetic contactor be inserted which can be manually
activated.
This is to allow you to disconnect the inverter from the power supply in an emergency
(e.g., when the protective function is activated) so as to prevent a failure or accident
from causing the secondary problems.
9

4. Names and Functions of Keypad Components
As shown in the figure at right, the
keypad consists of a four-digit 7-segment
LED monitor, a potentiometer (POT), and
six keys.
The keypad allows you to start and stop
the motor, monitor running status,
configure the function code data, check
I/O signal states, and display
maintenance information and alarm
information.
Table 4.1 Names and Functions of Keypad Components
Monitor,
Potentiometer and
Keys
Functions
Four-digit, 7-segment LED monitor which displays the following according to the
operation modes *.
In Running mode: Running status information (e.g., output frequency, current, and
voltage)
In Programming mode: Menus, function codes and their data
In Alarm mode: Alarm code which identifies the error factor if the
protective function is activated.
Potentiometer (POT) which is used to manually set a reference frequency, auxiliary
frequencies 1 and 2 or PID process command.
RUN key. Press this key to run the motor.
STOP key. Press this key to stop the motor.
UP/DOWN keys. Press these keys to select the setting items and change the function
code data displayed on the LED monitor.
Program/Reset key which switches the operation modes* of the inverter.
In Running mode: Pressing this key switches the inverter to Programming mode.
In Programming mode: Pressing this key switches the inverter to Running
mode.
In Alarm mode: Pressing this key after removing the error factor
switches the inverter to Running mode.
Function/Data key which switches the operation you want to do in each mode as
follows:
In Running mode: Pressing this key switches the information to be displayed
concerning the status of the inverter (output frequency, output current, output voltage,
etc.).
In Programming mode: Pressing this key displays the function codes and sets their data
entered with the and keys or the POT.
In Alarm mode: Pressing this key displays detailed alarm information.
* FVR-Micro features three operation modes: Running, Programming, and Alarm.
10

5. If an Alarm Code Appears on the LED Monitor
Quick reference table of alarm codes
Alarm
code
Name Alarm
code
Name
OC1
Instantaneous overcurrent
dbH Braking resistor overheated
OC2 OL1 Motor 1 overload
OC3 OLU Inverter overload
OU1
Overvoltage
Er1 Memory error
OU2 Er2 Keypad communications error
OU3 Er3 CPU error
LU Undervoltage Er6 Operation protection
Lin Input phase loss Er7 Tuning error
OPL Output phase loss Er8 RS-485 communications error
OH1 Heat sink overheat ErF Data saving error during
under voltage
OH2 External alarm Err Mock alarm
OH4 Motor protection
(PTC thermistor) CoF PID feedback wire break
11

6. Specifications
6.1 Single-phase 200 V class series
Item
Specifications
Type
0.4
0.75
1.5
2.2
Applicable motor rating (kW)
*1
0.4 0.75 1.5 2.2
Output Ratings
Rated capacity (kVA)
*2
0.9 1.6 2.8 3.8
Rated voltage (V) *3
Three-phase, 200 to 240 V (with AVR function)
Rated current (A) *4 3.5 (2.5) 4.2 (4.2) 9.2 (7.5) 10.0 (10.0)
Overload capability 150% of rated output current for 1 min (for the rated current given in
parentheses)
Rated frequency (Hz)
50/60 Hz
Input Ratings
Phases, voltage,
frequency
Single-phase, 200 to 240 V, 50/60 Hz
Voltage and
frequency variations Voltage: +10 to -10%, Frequency: +5 to -5%
Rated
current(A)
*6
(w/o
DCR)
5.4 9.7 16.4 24.0
Required power
supply capacity (kVA)
0.7 1.3 2.4 3.5
Braking
Torque (%) *8
100
50
30
DC braking
Braking starting frequency*9: 0.0 to 60.0 Hz,
Braking time: 0.0 to 30.0 s, Braking level: 0 to 100%
Braking transistor
Built-in
Applicable safety standards
UL61800-5-1, IEC 61800-5-1(under application)
Enclosure
IP20 (IEC 60529), UL open type (UL50)
Cooling method
Fan cooling
Mass (kg)
0.6
0.6
1.0
1.0
*1 Fuji 4-pole standard motors
*2 Refers to the rated capacity assuming the rated output voltage as 220 V.
*3 Output voltages cannot exceed the power supply voltage.
*4 The load shall be reduced so that the continuous operating current is the rated current in parentheses or less if
the carrier frequency is set to 3 kHz or above or the ambient temperature exceeds 40°C.
* 5 Interphase voltage unbalance (%) =
Max. voltage (V) - Min.voltage (V)
× 67 (Referto IEC 61800 - 3)
3 phase average voltage (V)
If this value is 2 to 3%, use an optional AC reactor (ACR) .
*6 Refers to the estimated value to apply when the power supply capacity is 500 kVA (inverter capacity x 10 when
the inverter capacity exceeds 50 kVA) and the inverter is connected to the %X = 5% power supply.
*8 Refers to the average braking torque to apply when the motor running alone decelerates from 60 Hz with the
AVR control being OFF. (It varies with the efficiency of the motor.)
*9 Available only for induction motor drive.
12

6.2 Three-phase 400 V class series
Item
Specifications
Type
0.4
0.75
1.5
2.2
3.7
Applicable motor rating (kW)
*1
0.4 0.75 1.5 2.2 3.7
Output Ratings
Rated capacity (kVA)
*2
1.1 1.9 3.2 4.1 6.8
Rated voltage (V) *3
Three-phase, 380 to 480 V (with AVR function)
Rated current (A) 1.8
(1.5)
2.5
(2.5)
4.3
(4.2)
6.3
(5.5)
10.5
(9.0)
Overload capability 150% of rated output current for 1 min (for the rated current given in
parentheses)
Rated frequency (Hz)
50/60 Hz
Input Ratings
Phases, voltage,
frequency
Three-phase, 380 to 480 V, 50/60 Hz
Voltage and
frequency variations
Voltage: +10 to -15% (Interphase voltage unbalance: 2% or less) *5,
Frequency: +5 to -5%
Rated
current (A)
*6
(w/o
DCR) 1.7 3.1 5.9 8.2 13.0
Required power supply
capacity (kVA) 0.6 1.1 2.0 2.9 4.9
Braking
Torque (%) *8
100
50
30
DC braking Braking starting frequency*9: 0.0 to 60.0 Hz,
Braking time: 0.0 to 30.0 s, Braking level: 0 to 100%
Braking transistor
Built-in
Applicable safety standards
UL61800-5-1, IEC 61800-5-1 (under application)
Enclosure
IP20 (IEC 60529), UL open type (UL50)
Cooling method
Natural cooling
Fan cooling
Mass (kg)
0.8
0.8
0.9
1.0
1.3
*1 Fuji 4-pole standard motors
*2 Refers to the rated capacity assuming the rated output voltage as 440 V.
*3 Output voltages cannot exceed the power supply voltage.
*5
Interphase voltage unbalance (%) =
Max. voltage (V) - Min.voltage (V)
× 67 (Referto IEC 61800 - 3)
3 phase average voltage (V)
If this value is 2 to 3%, use an optional AC reactor (ACR) .
*6 Refers to the estimated value to apply when the power supply capacity is 500 kVA (inverter capacity x 10 when the
inverter capacity exceeds 50 kVA) and the inverter is connected to the %X = 5% power supply.
*8 Refers to the average braking torque to apply when the motor running alone decelerates from 60 Hz with the AVR
control being OFF. (It varies with the efficiency of the motor.)
*9 Available only for induction motor drive.
13

7. Connection diagram in operation by external signal inputs
Voltage Input
0 to 10 VDC
[Y1]
[Y1E]
[DX+]
Analog input
Analog Meter
[DX-]
Current Input
+4(0) to +20 mADC
[FWD]
[REV]
[CM]
[X1]
[X2]
[X3]
[PLC]
RJ-45
[FMA]
Digital input
[13]
[12]
[C1]
30A
30B
30C
Alarm output
(for any fault)
Transistor Output
Power supply
Single-phase
200 to 240V
50/60Hz
R
[11]
(+)
(-)
3
2
1
Power supply to
potentiometer
RS-485
Communication port
*With a built-in
resistor switch
SINK
SOURCE
L1/L
L2/N
MC (Note 2)
MCCB or
RCD/ELCB
(Note 1)
Control Circuit
Main Circuit
(Note 5)
(Note 6)
ELCB : Earth Leakage Circuit Braker
MC : Magnetic Contactor
MCCB : Molded Case Circuit Braker
RCD : Residual-current- operated
Protective Device
U
V
W
Grounding termical (Note 7)
G
M
Motor
Power supply
Three-phase
380 to 480V
50/60Hz
G
L1/R
L2/S
L3/T
MC (Note 2)
MCCB or
RCD/ELCB
(Note 1)
Grounding termical
P DB
DBR (Dynamic Braking Resistor)
PDB
2
1[CM]
[THR]
(Note 4)
(Note 1)
I
nstall a recommended molded case circuit breaker (MCCB) or a residual-current-
o
perated protective device (RCD)/earth leakage circuit breaker (ELCB) (with overcurrent
prot
ection) in the primary circuit of the inverter to protect wiring. Do not use an MCCB or
RCD/ELCB whose capacity exceeds the recommended rated current.
(Note 2)
A
magnetic contactor (MC) should, if necessary, be mounted independent of the MCCB or
ELCB to
cut off the power fed to the inverter. MCs or solenoids that will be installed close to
the inverter require surge absorbers to be connected in parallel to their coils.
(Note 4)
T
he THR function can be used by assigning "9" (External alarm) to any of terminals [X1] to
[X3],[FWD] or [REV] (function code E01 to E03, E98, or E99).
(Note 5)
Frequ
ency can be set by connecting a frequency setting device (external potentiometer)
b
etween terminals [11], [12] and [13] instead of inputting voltage signal (0 to +10 VDC or 0 to
+5VDC) between terminals [12] and [11].
(Note 6)
For the wiring of the control
circuit, use shielded or twisted wires. When shielded wires are
used
, connect the shields to earth. To prevent malfunction due to noise, keep the control
circuit wiring away from the main circuit wiring as far as possible (recommended: 10 cm or
longer),
and never set them in the same wire duct. When crossing the control circuit wiring with
the main circuit wiring, set them at right angles.
14

8. External Dimensions
[unit: mm]
[FVR0.4AS1S-7/FVR0.75AS1S-7] [FVR1.5AS1S-7/FVR2.2AS1S-7/
FVR0.4AS1S-4~FVR2.2AS1S-4]
[FVR3.7AS1S-4]
15

9. Function Code Tables
Function codes enable the FVR-Micro of inverters to be set up to match your system requirements.
Each function code consists of a 3-letter alphanumeric string. The first letter is an alphabet that
identifies its group and the following two letters are numerals that identify each individual code in the
group. The function codes are classified into seven groups: Fundamental Functions (F codes),
Extension Terminal Functions (E codes), Control Functions (C codes), Motor 1 Parameters (P codes),
High Performance Functions (H codes), Application Functions (J codes) and Link Functions (y
codes). To determine the property of each function code, set data to the function code.
(This manual only shows F functions, refer to the instruction on website for more functions,)
Changing, validating, and saving function code data when the motor is running
Function codes are indicated by the following based on whether they can be changed or not when the
inverter is running:
Notation
Change when running Validating and saving function code data
Y* Possible
If the data of the codes marked with Y* is changed, the change
will immediately take effect; however, the change is not saved
into the inverter's memory. To save the change, press the
(Function/Data) key. If you press the (Program/Reset) key
without pressing the (Function/Data) key to exit the current
state, then the changed data will be discarded and the previous
data will take effect for the inverter operation.
Y Possible
The data of the codes marked with Y can be changed with the
or keys regardless of whether the motor is running or not.
Pressing the (Function/Data) key will make the change
effective and save it into the inverter's memory.
N
Impossible
—
Using negative logic for programmable I/O terminals
The negative logic signaling system can be used for digital input terminals and transistor output
terminals by setting the function code data specifying the properties for those terminals. Negative
logic refers to the inverted ON/OFF (logical value 1 (true)/0 (false)) state of input or output signal. An
active-ON signal (the function takes effect if the terminal is short-circuited.) in the normal logic
system is functionally equivalent to active-OFF signal (the function takes effect if the terminal is
opened.) in the negative logic system. An active-ON signal can be switched to active-OFF signal,
and vice versa, with the function code data setting.
To set the negative logic system for an input or output terminal, enter data of 1000s (by adding 1000
to the data for the normal logic) in the corresponding function code.
Example: "Coast to a stop" command BX assigned to any of digital input terminals [X1] to [X3] using
any of function codes E01 through E03.
Function code data BX
7 Turning BX ON causes the motor to coast to a stop. (Active ON)
1007 Turning BX OFF causes the motor to coast to a stop. (Active OFF)
16

Limitation of data displayed on the LED monitor
Only four digits can be displayed on the 4-digit LED monitor. If you enter more than 4 digits of data
valid for a function code, any digits after the 4th digit of the set data will not be displayed; however
they will be processed correctly.
The following tables list the function codes available for the FVR-Micro inverters.
F codes: Fundamental Functions
Code Name Data setting range Incre-
ment Unit
Change
when
running
Data
copying Defaul
t
setting
F00 Data
Protection
0: Disable both data protection and digital reference
protection
1: Enable data protection and disable digital reference
protection
2: Disable data protection and enable digital reference
protection
3: Enable both data protection and digital reference
protection
– – Y Y 0
F01 Frequency
Command 1
0: UP/DOWN keys on keypad
1: Voltage input to terminal [12] (0 to +10VDC)
2: Current input to terminal [C1] (4 to 20 mA DC)
3: Sum of voltage and current inputs to terminals [12]
and [C1]
4: Built-in potentiometer (POT)
7: Terminal command UP/DOWN control
– – N Y 4
F02 Operation
Method
0: RUN/STOP keys on keypad (Motor rotational
direction specified by terminal command FWD/REV)
1: Terminal command FWD or REV
2: RUN/STOP keys on keypad (forward)
3: RUN/STOP keys on keypad (reverse)
– – N Y 2
F03 Maximum
Frequency 1 25.0 to 400.0 0.1 Hz N Y 60.0
F04 Base
Frequency 1 25.0 to 400.0 0.1 Hz N Y 60.0
F05 Rated Voltage at
Base
Frequency 1
0: Output a voltage in proportion to input voltage
80 to 240: Output an AVR-controlled voltage (for 200 V
class series)
160 to 500: Output an AVR-controlled voltage (for 400
V class series)
1 V N Y2 0
F06 Maximum Output
Voltage 1
80 to 240: Output an AVR-controlled voltage (for 200 V
class series)
160 to 500: Output an AVR-controlled voltage (for 400
V class series)
1 V N Y2 220
(380)
F07 Acceleration Time 1
0.01 to 3600
Note: Entering 0.00 cancels the acceleration time,
requiring external soft-start.
0.01 s Y Y 6.00
F08 Deceleration Time 1
0.01 to 3600
Note: Entering 0.00 cancels the deceleration time,
requiring external soft-start.
0.01 s Y Y 6.00
F09 Torque Boost 1
0.0 to 20.0
(percentage with respect to "F05: Rated Voltage at
Base Frequency 1")
Note: This setting takes effect when F37 = 0, 1, 3, or 4.
0.1 % Y Y See
Table
A.
17

(F codes continued)
Code Name Data setting range Incre-
ment Unit
Change
when
running
Data
copying Defaul
t
setting
F10
Electronic Thermal
Overload
Protection for
Motor 1
(Motor
characteristics)
1: For a general-purpose motor with shaft-driven
cooling fan
2: For an inverter-driven motor with separately
powered cooling fan
– – Y Y 1
F11
(Overload detection
level)
0.00: Disable, 0.01 to 100.0
1 to 135% of the rated current (allowable continuous
drive current) of the motor
0.01 A Y Y1
Y2
See
Table
A.
F12
(Thermal time
constant)
0.5 to 75.0 0.1 min Y Y 5.0
F14
Restart Mode after
Momentary Power
Failure
(Mode selection)
0: Disable restart (Trip immediately)
1: Disable restart (Trip after a recovery from power
failure)
2: Trip after decelerate-to-stop *2
4: Enable restart (Restart at the frequency at which the
power failure occurred, for general loads)
5: Enable restart (Restart at the starting frequency)
– – Y Y 1
F15 Frequency Limiter
(High
)
0.0 to 400.0 0.1 Hz Y Y 70.0
F16 (Low)
0.0 to 400.0
0.1 Hz Y Y 0.0
F18 Bias(Frequency
command 1)
-100.0 to 100.0 *1 0.01 % Y* Y 0.00
F20 DC Braking 1
(Braking startin
g
frequency)
0.0 to 60.0 0.1 Hz Y Y 0.0
F21 (Braking level)
0 to 100 *2 1 % Y Y 0
F22 (Braking time)
0.00 (Disable), 0.01 to 30.00 0.01 s Y Y 0.00
F23 Starting Frequency 0.1 to 60.0 0.1 Hz Y Y 1.0
F24 (Holding time)
0.00 to 10.00 0.01 s Y Y 0.00
F25 Stop Frequency 0.1 to 60.0 0.1 Hz Y Y 0.2
F26 Motor Sound
(Carrier frequency
)
0.75 to 16 1 kHz Y Y 2
F27 (Tone)
0: Level 0 (Inactive)
1: Level 1
– – Y Y 0
F30
Analog Output
[FMA] (Voltage
adjustment)
0 to 300 1 % Y* Y 100
F31 (Function)
Select a function to be monitored from the followings.
0: Output frequency 1 (before slip compensation)
1: Output frequency 2 (after slip compensation)
2: Output current
3: Output voltage
7: PID feedback amount (PV)
9: DC link bus voltage
14: Calibration
15: PID command (SV)
16: PID output (MV)
– – Y Y 0
18

(F codes continued)
Code Name Data setting range Incre-
ment Unit
Change
when
running
Data
copying Defaul
t
setting
F37
Load Selection/Auto
Torque Boost 0: Variable torque load
1: Constant torque load
2: Auto-torque boost
– – N Y 1
F39
Stop Frequency
(Holding Time)
0.00 to 10.00 0.01 s Y Y 0.00
F42
Control Mode
Selection 1 0: V/f control with slip compensation inactive
1: Dynamic torque vector control
2: V/f control with slip compensation active
– – N Y 0
F43
Current Limiter
(Mode selection) 0: Disable (No current limiter works.)
1: Enable at constant speed (Disable during ACC/DEC)
2: Enable during ACC/constant speed operation
– – Y Y 2
F44 (Level) 20 to 180 : 3.7 kW(5HP)
(The data is interpreted as the rated output current of
the inverter for 100%.) *2
1 % Y Y 160
F50
Electronic Thermal
Overload Protection
for Braking Resistor
(Discharging
capability)
1 to 900, OFF (Cancel) 1 kWs Y Y1
Y2 OFF
F51
(Allowable average
loss) 0.001 to 50.00 0.001 kW Y Y1
Y2
0.001
*1 When you make settings from the keypad, the incremental unit is restricted by the number of digits that the LED monitor can
display.(Example) If the setting range is from -200.00 to 200.00, the incremental unit is:
"1" for -200 to -100, "0.1" for -99.9 to -10.0 and for 100.0 to 200.0, and "0.01" for -9.99 to -0.01 and for 0.00 to 99.99.
*2 The percentage is relative to the rated output current.
19