C750 & C750R User
Manual Page 41
PARALLEL SYSTEM OPERATION
1.
Turn on the input breakers for the parallel UPS.
2.
Pressing button continuously for one UPS of the system, then the system will start to turn on and enter line
mode.
3.
Regulate the output voltage of each UPS separately, and check if the output voltage difference is less than
0.5V among the parallel system. If the difference is more than 0.5V, the UPS need to calibrated.
4.
If the output voltage difference is less than 0.5V, pressing button continuously for one UPS of the system to
turn off the system. Turn off the input breakers to let UPS shut down. Then switch on the output breakers for all
the UPS.
5.
Turn on the input breakers for the parallel UPS. Pressing button continuously for one UPS of the system, then
the system will start to turn on and enter line mode and the system will work normally in parallel.
