Rockwell Automation 1771-OMD AC(220V) Output Mod Installation Instructions - Manual (Page 10)

10 AC (220V) Output Module Cat. No. 1771-OMD Series B
Publication 1771Ć5.26 - February 2000
11. Start with bit 00 and turn on individual outputs one at a time.
Turn off the last output before turning on the next output.
12.If the red fuse blown indicator lights, note which output is faulty
and trace the output wiring to the faulty device.
After correcting the fault problem, return to step 1 and begin again.
If you cannot locate a faulty output, return to step 8 and turn on 2 or
more outputs at the same time. Total output current should not
exceed 2A per output, or 8A per module.