Automatic system, Manual transfer to maintenance bypass, Press green “cbb on” pushbutton – Rockwell Automation 1608M MegaDySC User Manual, 800 - 2400 A User Manual
Page 21: Confirm that red “bypass closed” lamp is lit, Confirm that both cbi and cbo are open, Manual transfer to megadysc, Press red “cbb off” pushbutton
Rockwell Automation Publication 1608M-UM002A-EN-P - September 2013
21
Operation
Chapter 5
Automatic Bypass
Switchboard Operating
Instructions
Automatic System
In the event of a fault in the MegaDySC system, bypass (CBB) will close.
The system will remain in bypass until manually transferred back to the
MegaDySC
Manual Transfer to Maintenance Bypass
1.
Press green “CBB ON” pushbutton
2.
Confirm that red “BYPASS CLOSED” lamp is lit
3.
Press red “OFF” pushbutton (part of CBI). Output breaker (CBO) will
open automatically.
4.
Confirm that both CBI and CBO are open
5.
The MegaDySC is now bypassed and isolated for maintenance
Manual Transfer to MegaDySC
1.
Charge CBI with pump handle. Press green “CBI ON” pushbutton.
Note: “CLOSE CBI” action is inhibited for one minute after power cycling.
2.
Confirm that the MegaDySC touch screen is lit, and the status displays
“OK” in the upper-left corner.
3.
Charge CBO with pump handle. Close CBO by pressing green
pushbutton “CBO ON”.
4.
Confirm that the MegaDySC touchscreen status displays “OK”.
5.
Press red “CBB OFF” pushbutton
6.
The MegaDySC system is now providing power to the load.
ATTENTION: Follow these instructions to avoid interrupting load power! Do not
attempt to change the position of any circuit breakers without becoming
familiar with the operation of the MegaDySC system. Contact the factory
immediately if the system fails to operate as outlined below. Voltage sag
protection is not available whenever CBB is closed (red BYPASS CLOSED lamp is
lighted).