Omron SYSDRIVE MX SERIES User Manual page 38

2-3 Wiring
Wiring the Control Circuit Terminals and Relay Output Terminals
2
Wiring Example of the Control Circuit Terminal Block (Sink Logic)
SC
Frequency
meter
Note 1: When connecting a relay to the multi-function output terminal, install a surge-absorbing
Note 2: For the signal line, use a twisted shield wire and apply the shield coating as illustrated on
2-13
Relay output
MB
terminal block
Relay output
S6 S5 S4 S3
FS FV FI FC AM
2
3 1
Variable resistor
Frequency reference
(1 to 2 kΩ) 1k
Signal during RUN
diode in parallel with the relay. The output circuit can break down due to surge voltage when
the relay is switched on/off.
the next page. Keep the length to 20 m or less.
Relay
SC S6
FV
FS
MA MC
S2 S1 PSC
PC P2 P1
RY RY
Frequency arrival signal
27 V DC
50 mA max.
Control circuit terminal block A
S5 S4 S3 S2 S1
FI
FC AM PC P2
Control circuit terminal block B
At sink logic (NPN): External power
supply input
At source logic (PNP): Power
supply output
Note: By factory default, the input logic
of the multi-function input terminal
circuit is set to the sink logic.
PSC
P1