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CA type
Source logic
Main circuit terminal
Control circuit terminal
MCCB
Three-phase
AC power
supply
Control input signals
(No voltage input allowed)
Forward rotation start
Reverse rotation start
Start self-holding selection
High speed
Multi-speed
Middle speed
selection
Low speed
Jog operation
Second function selection
Output stop
Terminal 4 input selection
(Current input selection)
Selection of automatic restart
after instantaneous power failure
Common for external power
supply transistor
Contact input common
24VDC power supply
24V external power
supply input
Common terminal
Frequency setting signals (Analog)
Frequency setting
potentiometer
1/2W1kΩ
Auxiliary
input
Terminal 4 input
(Current input)
Safety stop signal
Safety stop input (Channel 1)
Safety stop input (Channel 2)
Safety stop input common
For the FR-A820-03800(75K) or higher, the FR-A840-02160(75K) or higher, and when a 75 kW or higher motor is used, always connect a DC reactor (FR-HEL), which
is available as an option. (To select a DC reactor, refer to the Instruction Manual (Detailed), and select one according to the applicable motor capacity.)
When connecting a DC reactor, if a jumper is installed across terminals P1 and P/+, remove the jumper before installing the DC reactor. (The jumper is not installed for
the FR-A820-03800(75K) or higher and the FR-A840-02160(75K) or higher.)
When using separate power supply for the control circuit, remove the jumper between R1/L11 and S1/L21.
The function of these terminals can be changed with the input terminal assignment (Pr.178 to Pr.189). (Refer to
Terminal JOG is also used as the pulse train input terminal. Use Pr.291 to choose JOG or pulse.
Terminal input specifications can be changed by analog input specification switchover (Pr.73, Pr.267). To input a voltage, set the voltage/current input switch OFF. To
input a current, set the voltage/current input switch ON. Terminals 10 and 2 are also used as a PTC input terminal. (Pr.561) (Refer to the Instruction Manual (Detailed).)
It is recommended to use 2 W 1 kΩ when the frequency setting signal is changed frequently.
If connecting a brake resistor, remove the jumper between PR and PX (FR-A820-00046(0.4K) to 00490(7.5K), FR-A840-00023(0.4K) to 00250(7.5K)).
Connect a brake resistor across terminals P/+ (P3) and PR. (Terminal PR is equipped in FR-A820-00046(0.4K) to 02330(45K), FR-A840-00023(0.4K) to 01800(55K).)
Install a thermal relay to prevent overheating and damage of discharging resistors. (Refer to the Instruction Manual (Detailed).)
Do not connect the DC power supply (under DC feeding mode) to terminal P3.
The function of these terminals can be changed with the output terminal assignment (Pr.195, Pr.196). (Refer to
The function of these terminals can be changed with the output terminal assignment (Pr.190 to Pr.194). (Refer to
NOTE
• To prevent a malfunction due to noise, keep the signal cables 10 cm or more away from the power cables. Also, separate the main circuit cables at the input side from
the main circuit cables at the output side.
• After wiring, wire offcuts must not be left in the inverter. Wire offcuts can cause an alarm, failure or malfunction. Always keep the inverter clean. When drilling mounting
holes in an enclosure etc., take caution not to allow chips and other foreign matter to enter the inverter.
• Set the voltage/current input switch correctly. Incorrect setting may cause a fault, failure or malfunction.
DC reactor
(FR-HEL)
R
Jumper
Jumper
Earth
(Ground)
P1
P/+
PX
PR
R
MC
R/L1
Inrush current
S/L2
limit circuit
T/L3
ON
EMC filter
R1/L11
ON/OFF
Jumper
S1/L21
connecter
OFF
Main circuit
Earth
(Ground)
Control circuit
STF
STR
STP(STOP)
RH
RM
RL
JOG
RT
MRS
RES
Reset
AU
CS
SD
24V
PC
+24
SD
Voltage/current
input switch
ON
10E(+10V)
OFF
10(+5V)
2
4
3
DC0 to 5V
Initial value
2
2
DC0 to 10V selectable
DC0 to 20mA
1
5
(Analog common)
Initial value
DC0 to ±10V
(+)
1
DC0 to ±5V selectable
(-)
DC4 to 20mA
Initial value
(+)
4
DC0 to 5V
selectable
(-)
DC0 to 10V
PU connector
USB A connector
USB mini B connector
24V
Shorting wire
PC
S1
Output shutoff
S2
circuit
SIC
SD
FR-A820-00770(15K) to 01250(22K),
FR-A840-00470(18.5K) to 01800(55K)
DC reactor
(FR-HEL)
Brake resistor
(FR-ABR)
Brake unit
Jumper
(Option)
Earth
(Ground)
P1
P/+
P3
Inrush
N/-
current
limit circuit
U
Motor
V
M
W
Earth (Ground)
Relay output
C1
B1
Relay output 1
(Fault output)
A1
C2
B2
Relay output 2
A2
RUN
Open collector output
Running
SU
Up to frequency
IPF
Instantaneous
power failure
OL
Overload
FU
Frequency detection
SE
Open collector output common
Sink/source common
CC-Link IE TSN
PORT 1
communication connector
PORT 2
Connector for plug-in option
Connector 2
connection
Connector 3
F/C
(+)
(CA)
Analog current output
(0 to 20mADC)
(-)
AM
(+)
Analog signal output
(DC0 to ±10V)
(-)
5
RS-485 terminals
TXD+
Data
TXD-
transmission
RXD+
Data
RXD-
reception
GND
(SG)
GND
Terminating
VCC
5V
resistor
(Permissible load current 100mA)
So
(SO)
Safety monitor output
SOC
Safety monitor output common
Terminal connection diagrams
Brake resistor
Brake unit
(Option)
R
PR
N/-
page
13.)
page
13.)
page
13.)
WIRING
5
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