Omron 3G3MX2 User Manual page 46

2-2 Wiring
Wiring Example (Sink Logic)
RS+
2
When connecting a relay to the multi-function output terminal, install a surge-absorbing diode
in parallel with the relay. The output circuit can break down due to surge voltage when the relay
is switched on/off.
Switching Method for Input Control Logics
Multi-function input terminals are set to sink logic at the factory.
To switch the input control logic to source logic, remove the shorting bar between terminals
P24 and PSC on the control circuit terminal block, and connect it between terminals PSC and
SC.
(1) Sink logic
S2
2-19
RS− S7/EB S6 S5/TH S4/GS2 S3/GS1
MP RP FS FV
Variable Resistor
Frequency reference
(1 to 2 kΩ)
S1 SC PSC P24
Shorting bar
Communication
Relay output
MB MA MC
Communication
RS-485
S2 S1
FI SC AM PC
Signal during
RUN
Frequency reading
(2) Source logic
S2 S1 SC PSC P24
Shorting bar
Logic input
RS-485
RS− S7 S5 S4
S6
/EB /TH /GS2
RS+ MP RP FS FV
Pulse Pulse Analog input and
output input power supply
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-A@@@@)
Shorting bar
(sink logic)
SC PSC P24
P2 P1/EDM
RY RY
Frequency arrival
signal
(27 VDC 50 mA max.)
Logic common and
power supply
S3
S2 S1 SC PSC P24
/GS1
P1
FI SC AM PC P2
/EDM
Analog Logic output
output
Shorting
bar