ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Section 5.5.9 List of General Fault Finding Procedures and Hints
3BSE 002 415R701 Rev A 5-45
Redundant a.c. Mains Supply and Redundant Power Supply Regulators
(Total redundancy)
In an Advant Controller which includes total power supply redundancy, the probability for a
shut down caused by a single power supply failure is extremely small. That is the controller will
still be operational when a single failure exists. Diagnostics support is available. A detected
failure must be taken care of as soon as possible to regain redundancy. Normally a faulty unit
can be replaced on line.
Two scenarios are described. A single failure in the controller power supply (Scenario C).
And a single failure in an I/O subrack power supply (Scenario D).
These situations are notified by:
Scenario C
• An operator station connected to this controller.
Indications obtained by:
– System message
– System status display.
The faulty power supply branch A or B is pointed out.
Failure in the 5 V regulators is pointed out.
(see Section 5.5.2.1, System Status and Plain Language System Messages).
Scenario D
• An operator station connected to this controller
Indications obtained by:
– System message
– System status display.
The faulty power supply branch A or B is pointed out.
Failure in the 5 V regulators is pointed out
(see Section 5.5.2.1, System Status and Plain Language System Messages).
General
Fault finding in the controller cabinet is carried out as follows.
Before replacing a power supply unit or a fuse or resetting a MCB try to check for a reason of
the fault. If deemed too time consuming, it is always possible to try the easy way and “look for
the smoke”.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English