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Samba™ OPLC™
SM35/43/70-J-R20
Shields should be connected at the signal's source.
The 0V signal of the analog input must be connected to the controller's 0V.
Relay Outputs
SM35/43/70-J-R20
Increasing Contact Life Span
SM35/43/70-J-R20- Only
To increase the life span of the
relay output contacts and protect
the device from potential damage
by reverse EMF, connect:
A clamping diode in parallel with
each inductive DC load
An RC snubber circuit in parallel with
each inductive AC load
Unitronics
Analog Input Wiring
Analog input wiring, current (2/3 wire)
Analog input wiring, current (4-wire), voltage
SM35/43/70-J-T20
Transistor Outputs
SM35/43/70-J-T20
9
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