ABB Advant Controller 450 User Manual

Advant
®
Controller 450 User’s Guide
Chapter 4 Runtime Operation
4-4 3BSE 002 415R701 Rev A
Manual Selection
In order to ensure manually that a given processor module will be PRIMARY, you can follow
the sample procedure below:
1. Set the other processor module’s start mode selector to 2 (STOP) before initialization.
2. Press the initialization button on the desired primary unit (ENTER).
3. When the system begins to operate, turn the switch on the backup unit to the same position
as the primary unit’s switch (normally AUTO).
4. Restart the backup unit (ENTER).
4.1.5 Relations between Start Modes and Working Modes
The relation between start modes and working modes is described in figures as follows:
• First power-up (the system has never been configured), see Figure 4-2.
• Power-up of controller which contains application, see Figure 4-3.

ABB Advant Controller 450 Specifications

General

Brand	ABB
Model	Advant Controller 450
Category	Controller
Language	English