2-19
2-2 Wiring
SYSDRIVE MX2 Series USER'S MANUAL (3G3MX2-Axxxx)
2
Design
Wiring Example (Sink Logic)
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.
RS+ MP RP FS FV FI SC AM PC P2
P1/EDM
RY
RS− S7/EB S6 S5/TH S4/GS2 S3/GS1 S2 S1 SC PSC P24
RY
Shorting bar
(sink logic)
Variable Resistor
Frequency reference
(1 to 2 k
Ω
)
Frequency reading
Signal during
RUN
Frequency arrival
signal
(27 VDC 50 mA max.)
PSC P24SCS1S2
Shorting bar
(1) Sink logic
PSC P24SCS1S2
Shorting bar
(2) Source logic
PSC P24S1 SC
S3
/GS1
S2
S5
/TH
S4
/GS2
S6RS−
S7
/EB
P2
P1
/EDM
AM PCFI SCFS FVRPRS+ MP
MB MA MC
Relay output
Communication
RS-485
Logic input
Logic common and
power supply
Shorting
bar
Pulse
output
Pulse
input
Analog input and
power supply
Communication
RS-485
Analog
output
Logic output
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