Schneider Electric 840 USE 106 0 manual Startup Errors, Step

Maintenance

Startup Errors

LED Display for a When the Hot Standby system detects a mismatch between the Primary and

Startup Error Standby controllers, it reports a startup error. The mismatch may be in the configuration, including segment scheduler, I/O map or designation slide switch positions. The LEDs display the error pattern. The Ready indicator is a steady green, while the Com Act indicator blinks.

If the LEDs indicate a startup error and if you have difficulty determining why, you can access some startup error codes through software. Refer to Chapter 3 of the Quantum Automation Series Hardware Reference Guide for details.

Troubleshooting Take the following troubleshooting steps:

Step Action

1Be sure the designation slide switches on the CHS 110 modules are in opposite positions.

2Be sure the configuration tables in the Primary and Standby controllers are identical.

3Be sure the segment schedulers in the Primary and Standby controllers are identical.

4Be sure the I/O maps in the Primary and Standby controllers are identical.

184 840 USE 106 00 January 2003