ABB Symphony Harmony Series, Instructions Manual

Page: 102 / 116

WBPEEUI210509A0 PR11 - 1
PR11
DC Bus Monitoring Assembly
Removal
Purpose/Scope
This procedure explains how to remove the DC bus monitoring
assembly from the rear of the power chassis.
Parts None.
Tools Bladed screwdriver.
Safety Considerations
Procedure
□
1. Be sure power is removed at the source before starting this
procedure.
□
2. Open the rear door of the cabinet.
□
3. Disconnect and label the cable from J1 (Fig. PR11-1 ) on
the DC bus monitoring assembly.
NOTE:
Do not disconnect or connect the cable from the DC bus monitoring
assembly to the DC bus bar while the system is operating. Doing so could
cause a PFI to occur.
□
4. Refer to Figure PR11-1 and use the bladed screwdriver to
disengage the locking device on the DC bus monitoring
assembly.
□
5. Remove the DC bus monitoring assembly from the DIN
rail.
5 min.
WARNING
1. Disconnect power before attempting these procedures. Fail-
ure to do so could result in severe or fatal shock, or equipment
damage.
W1