Parker 590+ series, Product Manual

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8-6
Routine Maintenance and Repair
DC590+ Series DC Digital Drive
Repairs for Frame 6
WARNING!
The phase assembly metalwork (L1, L2 & L3) is LIVE when the unit is switched on. Isolate the entire DC590+
drive from electrical power before attempting to work on it.
Only qualified service personnel should attempt to repair or replace parts in the 590+.
AC Fuse Replacement (Frame 6 Non-Regen Unit - 2Q)
The AC fuse can be replaced in-situ . With the front of the drive removed (the Control Panel Assembly), the replacement should take about 20 minutes.
Removing the Control Panel Assembly from the cubicle completely will make access easier, but requires the removal of all connections made to it. It
may be possible to support the Control Panel Assembly (11.25kg/25 lbs) and sling it away from the Phase Assemblies far enough to gain access.
Removal
1. Loosen the retaining screws in the Field Controller plug. Unplug all connections to the Door Assembly
(control connections) and the Field Controller (Auxiliary Plug and Field Plug).
2. Undo the fixings to remove the front cover from the Control Panel Assembly.
3. Disconnect the flying leads of the Control Panel Assembly from the three Phase Assemblies. Remove the
external earth connection(s) made to the Front Cover.
4. Remove the 12mm x M6 fixings in the four corners that secure the Control Panel Assembly. Loosen the
top and bottom central support screws (but do not remove) and lift the Control Panel Assembly away
from the three Phase Assemblies.
5. Remove the fixings that secure the failed Phase Assembly front cover.
6. Disconnect the fishplate connected to the AC Busbar.
7. Slowly remove the ACCT's fixing bolt and washer from the AC Busbar, supporting the ACCT and large
(rubber) washer as you do so. Lower the ACCT to one side and remove the rubber washer.
8. The fuse is mounted on a plate. Remove this Fuse Assembly from the Phase Assembly.
9. On the bench, undo the central bolt from the Fuse Assembly taking note of the placement of washers and
other parts.