ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Chapter 5 Maintenance
5-68 3BSE 002 415R701 Rev A
Replace a backup DSBC 174
1. Set the front switch, on the backup DSBC 174 that will be replaced, in position STOP.
The RUN and DCOK LEDs are turned off, on the stopped DSBC 174.
2. Pull out the stopped bus extender.
Grip the board firmly and extract quickly and decisively. Use both handles.
3. Check the strappings. The replacement board must be strapped in exactly the same way as
the removed board.
4. Prepare the replacement board by setting it’s front switch in position STOP. Bus Extenders
must always be inserted with the front switch in position STOP.
5. Insert the new board carefully without reaching the rear plane contacts. Ensure that the
board slides in the guides in the subrack.
6. Push in the new board quickly and decisively.
7. Set the front switch, on the new board, to position RUN. The RUN and DC OK LEDs are
turned on.
8. Store the extracted board in an envelope of conductive plastic.
Replace a backup TC560V1/TC561V1
1. Remove the power supply from the optical modem. All LEDs on the modem are turned off
2. Remove the S100 I/O Bus connection cable.
3. Remove the optical fibres.
4. Replace the optical modem.
5. Connect the optical fibres.
6. Connect the S100 I/O Bus connection cable.
7. Connect the power supply to the optical modem. The LEDs P, TX and RX are turned on.
5.5.10.4 Replacement of Power Supply Unit
DANGER
Power supply units should be replaced by authorized service personnel only.
The branch A or B which is to be repaired must be carefully defined.
The replacement instruction focuses on the unregulated power supply units SA16x (a.c.) and
SD150 (d.c.). However the principles are valid for power switch and distribution unit
replacement as well.
Replacing a power supply unit shall always be carried out with highest safety possible.
Basically this means that voltage supply should always be switched off during repair and
installation work. Special provision is made for a system including redundancy where
replacement is urgently needed in a live system.
Before replacing a primary power supply unit, break its mains switch S1 in the power switch
unit (for the actual mains A or B). When the power supply unit is pluggable, unplug the power
cord. Where the power supply installation is fixed also switch off a safety breaker or remove the
actual fuse in the buildings mains installation before working in the power supply circuitry.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English