Tescom T-300P Series, User Manual

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4.3.3 Procedure For Switching The UPS-ON For Normal Operation From a Maintenance By-Pass
Power Down Condition :
With the S6 switches (static bypass) of the inverters (at least one of them) in “STATIC BYPASS” position,
turn on the parallel connected UPS’s UPS1 and UPS2 as follows:
1)
Turn on the S2 switches (static bypass) of both UPS’s.
2)
Turn on S4 switches (AC output) of both UPS’s.
3) Turn on S1 switches (rectifier input) of both UPS’s.
4)
Turn on the Battery Circuit Breakers S5 (optional) or insert the battery fuses of both UPS’s to connect
the battery groups to the UPS’s for uninterrupted operation.
5) When “MAINT SWITCH ON!” message appears on LCD, turn off S3 switches (maintenance bypass) of
both UPS’s.
6) Bring S6 switches (static bypass) of both UPS’s to “NORMAL” position.