MITSUBISHI ELECTRIC FR-S520E - Manual (Page 35)

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How to use the control circuit terminals
1
WI
RING
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 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) The input signals to the control circuit are micro currents. When contacts are
required, use two or more parallel micro signal contacts or a twin contact to prevent
a contact fault.
*Information on bar terminals
Introduced products (as of Oct., 2003): Phoenix Contact Co.,Ltd.
Bar terminal crimping terminal: CRIMPFOX ZA3 (Phoenix Contact Co., Ltd.)
Terminal Screw Size
Bar Terminal Model
(With Insulation
Sleeve)
Bar Terminal Model
(Without Insulation
Sleeve)
Wire Size (mm 2 )
M3 (A, B, C terminals)
Al 0.5-6WH A 0.5-6 0.3 to 0.5
Al 0.75-6GY A 0.75-6 0.5 to 0.75
M2
(Other than the above)
Al 0.5-6WH A 0.5-6 0.3 to 0.5
CAUTION
When using the bar terminal (without insulation sleeve), use care so that the
twisted wires do not come out.
RL FM
10 2 5 4
RM RH
Terminal arrangement
of control circuit
RUN
STR
PC SE
SD SD STF
Terminal screw
size: M3
A B C
Terminal screw size: M2
Tightening torque: 0.22N m to 0.25N m
Tightening torque: 0.5N m to 0.6N m
Wire size: 0.3mm 2 to 0.75mm 2