Terminal connection diagrams
5
CA type
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 k
Ω
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.
Analog current output
(0 to 20mADC)
F/C
(CA)
R
Three-phase
AC power
supply
MCCB
R/L1
S/L2
T/L3
R1/L11
S1/L21
PC
Common for external power
supply transistor
Forward rotation start
Reverse rotation start
Start self-holding selection
Middle speed
High speed
Low speed
Jog operation
Second function selection
Output stop
Reset
Terminal 4 input selection
(Current input selection)
Selection of automatic restart
after instantaneous power failure
Frequency setting signals (Analog)
10E(+10V)
10(+5V)
2
(Analog common)
2
3
1
Auxiliary
input
Terminal 4 input
(Current input)
1
4
Frequency setting
potentiometer
1/2W1kΩ
Running
Up to frequency
Instantaneous
power failure
Overload
Frequency detection
Open collector output common
Sink/source common
Control input signals
(No voltage input allowed)
Jumper
Motor
Relay output 1
(Fault output)
C1
B1
A1
U
V
W
P1
(-)
(+)
(-)
(+)
Analog signal output
Earth
(Ground)
AM
5
DC0 to ±5V selectable
DC0 to ±10V
(DC0 to ±10V)
Multi-speed
selection
Open collector output
Contact input common
Earth
(Ground)
Main circuit terminal
Control circuit terminal
DC0 to 5V
DC0 to 10V selectable
MC
Main circuit
C2
B2
A2
Relay output 2
Relay output
M
DC0 to 20mA
DC0 to 5V
DC0 to 10V
selectable
DC4 to 20mA
TXD+
Terminating
resistor
TXD-
RXD+
RXD-
Data
transmission
GND
RS-485 terminals
SINK
SOURCE
STF
STR
STP(STOP)
RH
RM
RL
JOG
RT
MRS
RES
AU
CS
SD
RUN
SU
IPF
OL
FU
SE
Data
reception
(+)
(-)
5
EMC filter
ON/OFF
connecter
ON
OFF
+24
24V external power
supply input
VCC
(+)
(-)
5V
(Permissible load current 100mA)
Source logic
Earth (Ground)
R
Jumper
Jumper
PX
PR
N/-
P/+
Control circuit
Initial value
Initial value
Initial value
ON
4
2
OFF
Voltage/current
input switch
Brake unit
(Option)
DC reactor
(FR-HEL)
Brake resistor
(FR-ABR)
Safety monitor output
Safety monitor output common
So
(SO)
SOC
Safety stop signal
Safety stop input (Channel 1)
Shorting wire
Safety stop input common
Safety stop input (Channel 2)
S1
S2
PC
SD
SIC
SD
24VDC power supply
Jumper
P1
Earth
(Ground)
R
P3
PR
N/-
P/+
Brake unit
(Option)
DC reactor
(FR-HEL)
Brake resistor
FR-A820-00770(15K) to 01250(22K),
FR-A840-00470(18.5K) to 01800(55K)
GND
(SG)
Inrush
current
limit circuit
PU connector
USB A connector
USB mini B connector
Connector for plug-in option
connection
Connector 2
Connector 3
CC-Link IE TSN
communication connector
PORT 1
PORT 2
Output shutoff
circuit
24V
Inrush current
limit circuit
Common terminal
24V
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