Form 51-52-33-107 Page 1 of 2
UDC2300
Replacement Instructions
Current Output PWA 51309796-501
RS485/422 PWA 51309831-501
Aux. Out/Dig. In PWA 51309782-501
Document Number Form: 51-52-33-107
Effective: 12/99
Supersedes: None
Summary This document provides instructions for installing/replacing printed wiring
assemblies (PWAs) in the UDC2300.
WARNING
Disconnect power before removing chassis from case.
ATTENTION Installing and replacing printed wiring assemblies should be performed by
qualified personnel only.
. This equipment contains devices that can be damaged by electrostatic
discharge (ESD). Use appropriate precautions to avoid damaging the
controller.
After replacing an input/output PWA, calibrate the input/output as
described in the instruction manual before returning the controller to
service.
Check the operation of a repaired controller before bringing it back online.
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