How To Use The Control Circuit Terminals; Terminal Block Layout; Wiring Instructions - Mitsubishi Electric FR-S520E Series Instruction Manual

How to use the control circuit terminals

1.3 How to use the control circuit terminals

1.3.1

Terminal block layout

In the control circuit of the inverter, the terminals are arranged as shown below:
1.3.2

Wiring instructions

1) Terminals SD, SE and 5 are common to the I/O signals isolated from each other. Do
not earth (ground) them.
Avoid connecting the terminal SD and 5 and the terminal SE and 5.
2) Use shielded or twisted cables for connection to the control circuit terminals and run
them away from the main and power circuits (including the 200V relay sequence
circuit).
3) Use two or more parallel micro-signal contacts or twin contacts to prevent contact
faults when using contact inputs since the control circuit input signals are micro-
currents.
*Information on bar terminals
Introduced products (as of September, 2006): Phoenix Contact Co.,Ltd.
Terminal Screw Size
M3 (A, B, C terminals)
M2
(Other than the above)
Bar terminal crimping terminal: CRIMPFOX ZA3 (Phoenix Contact Co., Ltd.)
CAUTION
When using the bar terminal (without insulation sleeve), use care so that the
twisted wires do not come out.
SD SD STF
A B C
Terminal screw
size: M3
Tightening torque: 0.5N m to 0.6N m
Wire size: 0.3mm
Bar Terminal Model
(With Insulation
Sleeve)
Al 0.5-6WH
Al 0.75-6GY
Al 0.5-6WH
Terminal arrangement
of control circuit
PC SE RUN 10 2
STR RL
Terminal screw size: M2
Tightening torque: 0.22N m to 0.25N m
to 0.75mm
2
Bar Terminal Model
(Without Insulation
Sleeve)
A 0.5-6
A 0.75-6
A 0.5-6
26
5 4
RM RH FM
2
Wire Size (mm
0.3 to 0.5
0.5 to 0.75
0.3 to 0.5
2
)