Rockwell Automation 1771-OAD AC(12-120V)Output Installation Instructions User Manual
Page 12

AC (12-120V) Output Module
12
Publication 1771ĆIN024B-EN-P - November 2002
The module’s output circuitry is protected from overload or shorts by
a fuse. You can replace the fuse as outlined below.
1. Turn off all power to the I/O chassis and all output device power
to the field wiring arm.
!
ATTENTION
Remove power from the 1771 I/O chassis
backplane and field wiring arm before removing
or installing an I/O module.
•
Failure to remove power from the backplane or
wiring arm could cause module damage,
degradation of performance, or injury.
•
Failure to remove power from the backplane
could cause injury or equipment damage due to
possible unexpected operation.
2. Remove the module from the chassis. Replace the blown fuse
with a 12A, 250V rectifier fuse (1/4 x 1-1/4 inch), Bussman pt.
no. GBB12.
Fuse
3. Replace the module in the chassis and attach the field wiring arm.
4. Turn OFF all outputs to the module.
5. Turn ON power to the I/O chassis only.
6. Check that the red status indicators on the front of the module are
off (no outputs on).
7. Turn on output device power to the field wiring arm.
8. Start with bit 00 and turn on individual outputs one at a time.
Turn off the previous output before turning on the next output.
Replacing the Fuse