Modifications reserved
3.4.4 Maintenance bypass
The maintenance bypass mode is achieved using the IA1 bypass switch on the front of the UPS:
POSITION OF SWITCH EFFECT
ON
Bypass-Switch Closed (Load supplied directly from bypass mains)
OFF
Bypass-Switch Open – Normal operating condition
(Load supplied by inverter)
Fig 3.4.4-1: “Maintenance bypass” operating mode
IN OPERATION MODE “MANUAL BYPASS,“ THE LOAD IS NOT
PROTECTED AGAINST ANY MAINS FAILURES OR MAINS DISTURBANCES.
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