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Comet installation and user manual: E-6761200XT/FA
6.5
Merlin Gerin by MGE UPS SYSTEMS
Mains 2 out of tolerance
Mains 2 (or the standby Mains) supplies the "static bypass" 3 (SS) and the
manual maintenance bypass.
■ as standard it is connected to the same terminal block as power Mains 1;
■ as option Mains 2 can be connected to a separate terminal block:
■■ the voltage tolerance of Mains 2 is defined with respect to the UPS rated output
voltage and is +7%, -10% for rated voltages of 240V and 415V and +/- 10% for
other voltages,
■■ the frequency tolerance of Mains 2 can be set between 1 and 4%.
A Mains 2 in tolerance allows UPS/Mains 2 transfers of the load without voltage
breaks.
When Mains 2 is out of tolerance, transfers take place with a load voltage break
of 0.5 second.