Mitsubishi Electric 9900D Series Owner Technical Manual page 55

** Transfer from Bypass to Inverter.
1. Press the "TRANSFER" icon on the LCD.
2. Press the "TRANSFER TO INVERTER (SMS)" icon on the LCD..
!
When "REMOTE OPERATION MODE" is displayed on the LCD panel, the
inverter start operation can only be performed remotely. If local inverter start
or stop operation is required (at the UPS), select "LOCAL ONLY" or "REMOTE
& LOCAL" in the OPERATION MENU.
NOTE
D) MMS Start-up Procedure
External Circuit Check
1.
Verify that Critical Load Cabinet (CLC) Circuit Breaker SMB is closed.
2.
Verify that CLC System Output Circuit Breaker 52L is open.
3.
Verify that CLC UPS Circuit 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 Operation* ". Each UPS will start Inverter
Operation in synchronization with the bypass input.
*Meaning of the icons
START INVERTER: UPS Module Startup
STOP INVERTER: UPS Module Stop
TRANSFER TO INVERTER (MMS): Parallel-in**
TRANSFER TO BYPASS (MMS): Parallel-off
**No effect in MMS Bypass Operation
Transfer from Maintenance Bypass to MMS Bypass Operation
1.
Close the CLC System Output Circuit Breaker 52L.
2.
Open the CLC Circuit 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.
NOTE
9900D SERIES UPS
OWNERS / TECHNICAL MANUAL
in Figure 2.3(a) in MMS
MITSUBISHI ELECTRIC 9900D SERIES UPS
Page Number:
4-3