
Maintenance and Troubleshooting
ADDvantage-32 PLUS ● AC to DC Power Converter
7-55
7.11 FUSE REPLACEMENT (540, 850, 1550, 3000 ADC)
7.11.1 FUSE REPLACEMENT FOR ARMATURE BRIDGE ASSEMBLY
7.11.1.1 Disassembly
1. Remove power from the drive.
2. Disconnect the ground wire(s) located on the lower left corner or left/center on
the back of the front panel.
3. Loosen the front panel screws. Using the slotted openings, lift the panel up and
off.
4a. DC054X, DC085X, and DC155X-2 and -4 versions only:
Remove the two bolts holding the fuse to be replaced (F1-F6) between the bus
bars and thyristor module.
4b. DC155X-A and -B, DC250X, and DC300X:
Remove the wires from the fuse indicator switch, if so equipped. Remove the
mounting bolts that attach the fuse bus links to the AC bus bars and the thyristor
module. NOTE: The fuses, indicator switches, and associated bus links should
be removed as an assembly. Once removed, the bus links can be detached from
the fuses. If replacing a fuse that is equipped with an indicator switch, remove the
two screws that attach the switch to the fuse.
Comentarios a estos manuales