Supplied Parts - Parker AC890 Product Manual

Phase Assembly Replacement
The drive power stage consists of 3 identical phase assemblies. Each phase assembly consists of heatsink,
IGBT module plus gate drive pcb, 1/3 of the input bridge, DC link capacitors and PCB 'AH389193'. It is
intended that the whole phase assembly be carried as a spare part and replaced as a unit. Spare phase
assemblies are available for each of the three drive frame sizes. The spare phase assembly comes with a
'service tray' which is designed to assist in phase assembly replacement. It also protects the other delicate
components within the drive during the replacement procedure.
Observe all electrical warnings and static handling precautions at the front of this section - 'Component
Replacement'.

Supplied Parts

 Service plate.
 M5 screws (2 off)
 Heatsink clamps (2 off 890 frame G, 4 off 890 frames H & J) - used to retain phase assembly in
packaging. They are to be reused in the replacement assembly if the original clamps are excessively
distorted.
 Insulating caps - 3 off
Required Tools
Drive ratchet wrench, 300mm extension, 8mm & 10mm socket.

 Drive No. 2 & 3 Posidrive bits.
Phase Assembly Removal Procedure
Refer to Figure 10.10 - 'Power Component Identification' at the end of this section.
1. Remove drive top and bottom terminal cover (plastic) via 2 off ¼ turn fasteners at top and bottom of
drive.
890SD (Standalone) Drive: Frame G, H & J
Routine Maintenance and Repair
10-18
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