440L-C4J1760YD Allen-Bradley

440L-C4J1760YD  Allen-Bradley   ANALOG OUTPUT MODULE

Apply Chassis Power and Check Status Indicators

To complete this procedure, follow these steps.

1. Apply chassis power as shown in the figure.

2. Check the power supply and module status indicators and 

alphanumeric display to determine that the power supply and module 

are operating properly.

The alphanumeric display should cycle through the following states: 

TEST - PASS - OK - REV x.x, where x.x is the module’s firmware 

revision. ATTENTION17

Publication 1756-IN612B-EN-P - December 2009

The display then alternates between OK and port link status for both 

ports.LNK1 LNK2 OK

Install or Remove the Module Under Power

You can install or remove this module while chassis power is applied.

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.

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 op

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