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Maintenance By-pass Operation
CB1, SW1, SW2 and the Battery CB are in the off position and SW3 is in the on position. The load is supplied directly by the mains
supply. The Maintenance Bypass is used to supply the load during maintenance operations. CB1 and SW1 can be used to supply
power to the UPS for testing or startup without affecting the output. In the Maintenance By-pass Position, all power is removed
except for the fans and power transformers in some models.
Note: In Maintenance By-pass operation, the Display and LED’s do not illuminate.
Path of Current