ABB Advant Controller 450 User Manual

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In the most critical applications, a special design of the Advant OCS, the Master Safeguard,
is applicable. It is fully compatible with the rest of the Advant OCS products, including Advant
Controller 410/450. Master Safeguard operates on the same network and from the same type of
operator stations. Functionally, the Master Safeguard is almost identical to an
Advant Controller 410/450, and is configured and documented in the same way.
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System level diagnostics, including the Advant Controller 450, have an error reporting and
indicating structure that makes use of system messages, console diagnostic displays and LED
status indicators to indicate the status of hardware.
Comprehensive system diagnostics not only detect problems, but also let an operator know
where a problem is located. The diagnostic features of the system provide for timely, reliable
detection and notification of both software and hardware errors.
The diagnostic philosophy for the Advant OCS is that single-fault situations are detected and
processed.
The diagnostics support the maintenance philosophy of fault isolation and replacement down to
module or subassembly level.
A survey of the fault announcement in Advant Controller 450 follows. The diagnostics built in
to different modules and system functions are mentioned briefly. You can also find more
information on LED indications and so on, in connection to module descriptions. For a detailed
description of the use of diagnostics, among other things, see Chapter 5, Maintenance.
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The Advant Controller 450 provides one collective run/alarm relay for each processor module.
These relays are included in the supervision module TC520. The indicating contacts can be
reached via a connector on the module front. Within the limits of electrical data, you can use this
contact in any desired application function, for example, creating an audible alarm or
interlocking certain process objects in the event of a controller safety shut-down.
The main reasons for de-energizing the alarm relay and RSHQLQJthe alarm contact are:
• Fatal Error in CPU and memory
• Fatal Error in program execution
• Loss of power supply in the controller subrack
• Switch over depending on loss of communication on S100 I/O bus extension if
redundancy.
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Only a single contact function per processor module is available. They are
normally closed but are open when there is an error.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English