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5.2
Wiring of Control Circuit Terminals
SINK TYPE wiring
(Factory settings)
FM CM1 PLC P24 FW
Frequency meter
SOURCE TYPE wiring
FM CM1 PLC P24 FW
Frequency meter
NOTE 1: When an output intelligent terminal is used, be sure to install a surge absorbing
diode in parallel with the relay (RY). Otherwise, the surge voltage created when
the relay (RY) goes ON or OFF may damage the output intelligent terminal cir-
cuit.
NOTE 2: Use a twisted and shielded wire for the signal line, and cut the shielded covering
as shown in the diagram below. Make sure that the length of the signal line is 20
meters or less.
8
7
6
5
4
Input intelligent terminal
8
7
6
5
Input intelligent terminal
3
2
1
H
O
Frequency setting
(500
to 2 k )
Current input
DC 4 to 20 mA
4
3
2
1
H
O
Frequency setting
(500
to 2 k )
5-5
OI
L CM2 12
11
RY
RY
For output
Intelligent terminal
27 VDC 50 mA
50 mA max
OI
L CM2 12
11
RY
For output
Intelligent terminal
Current input
27 VDC 50 mA
DC 4 to 20 mA
50 mA max
AL2 AL1 AL0
Fault alarm
AL2 AL1 AL0
RY
Fault alarm
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Troubleshooting
