Replacing a fuse – Rockwell Automation 1771-OQ16/C Isolated Output Module Installation Instr User Manual
Page 11

DC (24V) Isolated Output Module
11
Publication 1771ĆIN057B-EN-P - November 2002
Each module output is individually fused. You can easily access the
module fuses through the access hole provided in the component side
cover. Follow the procedure below.
!
ATTENTION
Remove power from the 1771 I/O chassis
backplane and wiring arm before removing or
installing an I/O module.
•
Failure to remove power from the backplane
could cause injury or equipment damage due to
possible unexpected operation.
•
Failure to remove power from the backplane or
wiring arm could cause module damage,
degradation of performance, or injury.
If a blown fuse occurs:
1. Turn off power to the I/O chassis backplane.
2. Pivot the wiring arm away from the module and pull the module
from the I/O chassis.
3. Use a small common screwdriver to reach through the front of the
module and carefully pry one end of the fuse out of its holder.
18532
Reach through hole in side cover
andtwist andpull to remove fuse.
Pry up on one endof the fuse
to remove it from the holder.
1.
2.
4. Reach through the access hole on the side of the module and
carefully twist and pull to remove the blown fuse. Replace it with
a 3A 2AG fast-acting fuse (Littelfuse part number 225003).
5. Reinstall the module in the I/O chassis.
6. Reposition the wiring arm.
7. Restart system power.
Replacing a Fuse