Mitsubishi Electric 9900B Series Owner Technical Manual page 60

MITSUBISHI
ELECTRIC
C) Bypass Operation Procedure
** Transfer from Inverter to Bypass
1. Check for "SYNC" on the LCD.
2. Press the "START/STOP" icon on the LCD.
3. Follow the "SHUTDOWN GUIDANCE" and Press the "STOP" icon on the LCD.
** Transfer from bypass to inverter
UPS
1. Press the "START/STOP" icon on the LCD.
2. Follow the "STARTUP GUIDANCE" and Press the "START" icon on the LCD.
NOTE: When "REMOTE OPERATION MODE" is displayed on the LCD panel, the
D) MMS Startup 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.
Startup each UPS in accordance with "A) Startup Procedure." Each UPS will start Inverter
Operation in synchronization with the bypass input.
Transfer from Maintenance Bypass to MMS Bypass Operation
1.
Closed the CLC System Output Circuit Breaker 52L.
2.
Open the CLC Circuit Breaker SMB.
NOTE: When "REMOTE OPERATION MODE" is displayed on the LCD panel,
9900B SERIES UPS
OWNERS / TECHNICAL MANUAL
inverter start operation can only be performed remotely. If local inverter
start or stop operation is required, select "LOCAL ONLY" or "REMOTE
& LOCAL" in the OPERATION MENU.
the inverter start operation can only be performed remotely. If local
inverter start operation is required, select "LOCAL ONLY" or
"REMOTE & LOCAL" in the OPERATION MENU.
MITSUBISHI ELECTRIC 9900B SERIES UPS
Page Number:
3-17