Rockwell Automation T6200 Compressor Anti-Surge and Capacity Controller - Manual (Page 62)

T6200 Controller Operation
5-4
System Start-up
When power is first applied, the T6200 Controller forces the analog outputs to zero and the discrete
outputs to open. Next, the T6200 Controller starts the self-test and flashes the COMM LEDs. After the
self-test has been successfully completed, the primary board will become active. The OUT LED will
illuminate on the backup board during this wait period. There must be a board in the primary position
when running the Controller Definition program in A/S VIEW. If the T6200 Controller does not have a
primary board when power is first applied the backup board outputs will remain in their power-up reset
condition.
FIGURE 5-1
T6200 Primary
and Backup
Control Boards
Figure 5-2
T6200-C Active
and Standby
Current Outputs