Allen-Bradley 1756-CFM, Руководство пользователя

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Rockwell Automation Publication 1756-UM010C-EN-P - June 2021 57
Chapter 4 Install the Configurable Flowmeter Module
Installing the Module
You can install or remove the module while chassis power is applied.
1. Align the circuit board with the top and bottoms chassis guides.
2. Slide the module into the chassis until the module locking tabs click.
WARNING: When you insert or remove the module while backplane power is
on, an electrical arc can occur. This could cause an explosion in hazardous
location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding. 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.
WARNING: When you connect or disconnect the removable terminal block
(RTB) with field side power applied, an electrical arc can occur. This could
cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before
proceeding.
Printed
Circuit
Board
Locking tab