Rockwell-automation 56AMXN ControlLogix/AutoMax/Communication/Module Uživatelský manuál stáhnout pdf (Strana 10)

10 DCSNet/RE RIO Module

Publication 56AMXN-IN002A-EN-P November 2002

Installing or Removing the Module While Power Is Applied

Versions of the 56AMXN hardware prior to O-57677-1 do NOT support removal

and insertion under power.

The hardware version can be identified by looking for a sticker with the part number

O-57677-1 or above on the module’s printed circuit (near the serial number – you do

not need to disassemble the 56AMXN to find the sticker). Modules with no stickers

are hardware version O-57677 and do NOT support removal and insertion under

power

For hardware versions O-57677-1 and above, you can install or remove the module

while chassis power is applied if you observe the following precautions.

When you insert or remove a module while backplane

power is on, an electrical arc may occur. An electrical arc

can cause personal injury or property damage by:

• sending an erroneous signal to your system’s actuators

causing unintended machine motion or loss of process

control.

• causing an explosion in a hazardous environment.

Repeated electrical arcing causes excessive wear to

contacts on both the module and its mating connector.

Worn contacts may create electrical resistance that can

affect module operation.

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Rockwell-automation 56AMXN ControlLogix/AutoMax/Communication/Module Uživatelský manuál Strana 10