Wiring Of The Control Circuit - Mitsubishi Electric FR-F500 Series Instruction Manual

2.2.3 Wiring of the control circuit

( 1 ) Wiring instructions
1) Terminals 5, SD and SE are common to the I/O signals and isolated from each other. Do not earth
(ground) these terminals. 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 frequency-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.
4) It is recommended to use the cables of 0.75mm
If the cable gauge used is 1.25mm
running or the cables are run improperly, resulting in an operation panel or parameter unit contact fault.
( 2 ) Terminal block layout
• • • • Japanese and NA version
In the control circuit of the inverter, the terminals are arranged as shown below:
Terminal screw size: M3.5
Tightening torque: 1.2 N⋅m
• • • • EC version
Terminal screw size: M3.5
Tightening torque: 1.2 N⋅m
A B
SE RUN SU LPF
2
2
or more, the front cover may be lifted when there are many cables
A B C PC AM 10E
RL RM RH RT AU STOP MRS RES SD
SE RUN SU IPF OL
C SD AM 10E 10 2
OL FU STOP MRS RES PC STF
18
INSTALLATION AND WIRING
gauge for connection to the control circuit terminals.
10 2 5 4 1
FM
FU SD STF STR JOG CS
5 4 1 RL RM RH
STR JOG CS
RT AU
FM SD
2