Rockwell Automation 1608P-200A480V... HC-DySC User Manual - Manual (Page 18)

18 Rockwell Automation Publication 1608P-UM005A-EN-P - November 2014
Chapter 4 Applying Power and Operation
Test Mode
The TEST mode for the HC-DySC is for the input circuit breaker (CBI) to be
closed and the output circuit breaker (CBO) to be open. The bypass circuit
breaker (CBB) must be closed to provide power to the load while the HC-DySC
is being tested off-line.
Maintenance Bypass Transfer
Procedure Automatic System
In the event of a fault in the HC-DySC system, bypass circuit breaker (CBB) will
close. The system will remain in bypass until manually transferred back to the
HC-DySC.
Manual Transfer to Normal (Sag Protection)
1. Wait for HC-DySC to display "READY TO CLOSE CBI"
2. Close CBI using the manual operator (Reset if needed)
3. Verify HC-DySC displays “OK”
4. Close CBO using the manual operator (Reset if needed)
5. Press “CBB OFF” button to open CBB. Red “CBB CLOSED” lamp
should be off
6. Sag protection is now active
Manual Transfer to Maintenance Bypass
1. Press "CBB ON" pushbutton to close CBB. Red "CBB CLOSED" lamp
should be on
2. Open CBO using the manual operator
3. Open CBI using the manual operator
4. Sag protection is now bypassed
WARNING: Testing must only be performed by factory authorized and qualified
personnel
IMPORTANT Always use red "CBB OFF" pushbutton to open the CBB circuit breaker. Do not
use the red "Push OFF" button that is part of the CBB circuit breaker. For proper
operation of the HC-DySC, the CBB circuit breaker spring must be charged
(displays "Charged Spring") when the CBB circuit breaker is off. If the CBB
circuit breaker is off and displays "Discharged Spring", push the "CBB OFF"
pushbutton to charge the spring.