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Vision™ OPLC™
i4 Automation Ltd - 01480 395256
Current connections (4 wire)
Analog input wiring, current/voltage (4-wire)
Shields should be connected at the signal's source.
The 0V signal of the analog input must be connected to the controller's 0V.
Increasing Contact Life Span
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 (current) Wiring
Analog Input (current/voltage) Wiring
Relay Outputs
Current connections (2/3 wire)
Analog input wiring, current (2/3 wire)
7
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