Instruction Manual

50 G9000 Installation and Operation Manual
D) MMS Start-up Procedure
External Circuit Check (Ensure System is in Maintenance Bypass)
1. Verify that Tie cabinet Maintenance bypass breaker SMB is closed.
2. Verify that Tie cabinet Output breaker 52L is open.
3. Verify that Tie cabinet UPS breakers 52L1, 52L2…and 52Ln are closed.
Start-up from UPS-1 to UPS-n
1. Start-up each UPS in accordance with “A) Start-up Procedure”. Each UPS will start Inverter
Operation synchronized with the bypass input. The Maintenance Bypass Switch is
synchronized with the Static Transfer Switch.
Transfer from Maintenance Bypass to MMS Bypass Operation
1. Close Tie cabinet breaker 52L.
2. Open Tie cabinet Breaker SMB.
When "REMOTE OPERATION MODE" is displayed on the LCD panel, the
inverter start operation can only be performed remotely. If local inverter start
operation is required (at the UPS), select "LOCAL ONLY" or “REMOTE &
LOCAL” in the OPERATION MENU.
Transfer from UPS MMS Bypass Operation To UPS MMS Inverter Operation
1. Transfer MMS Bypass Operation to MMS Inverter Operation from Operation Menu on
any UPS LCD as shown in Fig. 3.6.
FIGURE 3.6 LCD Screen (MMS Operation)
!
NOTE