ABB Symphony Harmony Series Instructions Manual page 102

DC Bus Monitoring Assembly
Removal
Purpose/Scope
5 min.
Safety Considerations
WARNING
Procedure
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WBPEEUI210509A0
This procedure explains how to remove the DC bus monitoring
assembly from the rear of the power chassis.
Parts None.
Tools Bladed screwdriver.
1. Disconnect power before attempting these procedures. Fail-
ure to do so could result in severe or fatal shock, or equipment
damage.
1. Be sure power is removed at the source before starting this
procedure.
W1
2. Open the rear door of the cabinet.
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3. Disconnect and label the cable from J1 (Fig. PR11-1) on
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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
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disengage the locking device on the DC bus monitoring
assembly.
5. Remove the DC bus monitoring assembly from the DIN
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rail.
PR11-1 and use the bladed screwdriver to
PR11
PR11 - 1