Liebert EXL S1
PARALLEL CONFIGURATION
User Manual 10H52226UM60 - Rev. 1 - 01/2017
88
7.4.2. Procedure 2: UPS TURN-OFF PROCEDURE
Starting with each UPS in Normal Mode, this procedure explains how to switch off the UPS units. When
this procedure is followed completely, the output voltage will be completely turned off and any load(s)
connected to the UPS output will be shut down. On each UPS, perform the following procedure:
7.4.3. Procedure 3: TRANSFER FROM NORMAL MODE TO MAINTENANCE
BYPASS MODE
Starting with each UPS in the Normal Mode, this procedure explains how transfer the load to
Maintenance Bypass and shut down the UPS. On each UPS, perform the following procedure:
Step
Action
Status
1
Touch “Inverter Off”.
At this point, the Load is supplied by the Bypass
System in Bypass
Mode
2
Switch battery breaker
1)
to the OFF position
1)
Not available for all ratings
3
Switch QS4 to the OFF position
Load not supplied
4
Switch QS2 to the OFF position
5
Switch QS1 to the OFF position
Step
Action
Status
1
Touch “Inverter Off”.
At this point, the Load is supplied by the Bypass
System in Bypass
Mode
2
Switch battery breaker
1)
to the OFF position
1)
Not available for all ratings
Battery disconnector
3
Switch QS3
2)
to the ON position
2)
Not available for 600/800/1000/1200kVA (see para 3.3. on page
39
)
4
Switch QS4 to the OFF position
Service Mode
5
Switch QS1 and QS2 to the OFF position
Maintenance Bypass
Mode - UPS
completely de-
energized
Summary of Contents for Liebert EXL
Page 1: ...Liebert EXL User Manual...
Page 2: ...Liebert EXL UNINTERRUPTIBLE POWER SUPPLY USER MANUAL 10H52226UM60 rev 1...
Page 7: ...Liebert EXL S1 6 User Manual 10H52226UM60 Rev 1 01 2017...
Page 36: ...Preparation For Use Liebert EXL S1 35 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 74: ...CONNECTIVITY PANELS Liebert EXL S1 73 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 84: ...Normal and safe operation Liebert EXL S1 83 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 86: ...Maintenance Liebert EXL S1 85 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 94: ...PARALLEL CONFIGURATION Liebert EXL S1 93 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...
Page 102: ...Options Liebert EXL S1 101 User Manual 10H52226UM60 Rev 1 01 2017 BLANK PAGE...