Hardware Ref, Installation, and Troubleshooting User guide

9Ć2

or 100Ć150HP drives, while standing on a nonĆconductive surface and wearing insulated

gloves (600V), remove the top two screws of the regulator panel and tilt the panel forward.

See figure 9.4. Measure the D

ĆC bus potential at the bottom of the fuse holders on the

ower Module Interface board on the back of the regulator panel. T

ake care not to touch

any conductive traces. ReĆattach the regulator panel.

Step 5.

Once the drive has been serviced, reĆattach the drive's cover

Step 6. ReĆapply input power.

Figure 9.1 Ć DĆC Bus V

oltage T

erminals (1Ć25 HP Drives)