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Outputs May Turn On at Power Up When Using a 170ENT11002 with Specific I/O Bases

The purpose of this Resolution is to inform users of 170ENT11002 Ethernet Communication Adapters of a condition where outputs could turn on briefly at powerup when mounted on specific digital output bases and combination digital input and output bases

170ENT11002s with a DOM (date of manufacture) of 8-2004, mounted on digital DC output bases or combination digital IO bases, may turn on all or some of the outputs for approximately 250ms, when field power is applied simultaneously or prior to module power. The outputs affected during this initial power on cycle, turn off after approximately 250ms and return to normal control.

Product Line
170ENT110002 with a DOM of 8-2004 through 11-2004 and a PV of 02

This issue does not occur with:

· 170ENT11002s with a DOM of 7-2004 or older
· 170ENT11000s
· 170ENT11001s

The problem has been eliminated with 170ENT11002s with a PV of 03 or higher or a Date of Manufacture of 12-2004 or higher.

Contact your local Schneider Electric office for exchanges.

For a temporary workaround of affected 170ENT11002 adapters, field power must be off when power is applied to the module. Once module power is applied, field power can then be applied.

Legacy KB System (APS) Data: RESL167645 V3.0, Originally authored by on , Last Edited by on
Related ranges: Modicon Momentum

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