Shut Down Parallel System from Normal to Maintenance Bypass Operation

Use this procedure to shut down a parallel system to maintenance bypass operation with the load supplied through the MBB.

NOTE: Only operate a breaker when the associated breaker LED is green.

From the home screen on the display, select Control > Shutdown Wizard. Select Shutdown ending in Maintenance Bypass and follow the steps which appear on the screen.
NOTE: The following is a generic shutdown procedure. Always follow the steps of the Shutdown Wizard which are specific to your system.
Initiate transfer to static bypass by tapping the Transfer Load to static bypass button on the display interface.

In systems with kirk-keys, the key is released from the solenoid key release unit in the system bypass cabinet.

If the UPS system does not transfer to requested static bypass, go to Status > Active Alarms to see if there are active alarms that prevent the UPS system from transferring to static bypass.
Close the maintenance bypass breaker MBB.
In systems with kirk-keys, the key is held in the lock.
Open the system isolation breaker SIB.
In systems with kirk-keys, turn the key in the lock on the system isolation breaker SIB to lock open.
The key is released.
In systems with kirk-keys, insert the key in the solenoid key release unit and turn to capture the key.
Perform the following steps for each UPS unit in the parallel system:
1. Open the unit output breaker UOB.
2. Open the static switch input breaker SSIB.
3. Initiate transfer to forced static bypass by tapping the Inverter OFF button on the front of the UPS system.
4. Open the battery breakers in your specific battery solution.
5. Open the unit input breaker UIB.