MGE UPS Systems EPS 7000 Power Supply User Manual


 
Operation
page 2 —13
Users Manual
g. Close the input isolation circuit breaker Q1. Verify that the following conditions exist:
The red “load not protected” LED is on
The rectifier/battery charger automatically starts
If either condition is not present, there is a fault. Open Q1 and contact MGE Customer Support Services.
h. Close the battery disconnect circuit breaker QF1. The batteries are now connected to the rectifier/battery
charger, and have begun charging.
IMPORTANT: Because it is standard for the UPS module to be
programmed for automatic restart, the inverter will
automatically start after the battery disconnect circuit
breaker QF1 has been closed.
i. If the UPS is not programmed for automatic restart, press the “inverter on” pushbutton. The green “load
protected” LED will flash for about 3 seconds, indicating that the inverter is starting.
j. The UPS will automatically transfer the load to the UPS inverter output. The green “load protected” LED will
turn on and remain on.
NOTE: If the transfer conditions are not satisfied (bypass AC input
sources is out of tolerance) a forced transfer is required.
Refer to section 2.12 Forced Transfers.
2.10.3 Checks After Start-up
After initial start-up of the system, normal operation should be tested. At the minimum, the following tests should be
performed as applicable to your installation:
Emergency power off (EPO) test.
Remote emergency power off (REPO) test (if applicable).
Inverter start and stop.
Battery transfer test.
Maintenance bypass procedure.
2.11 Shutdown
Shutdown procedures in this section apply to the EPS 7000 cabinet under normal, emergency, overload, and mainte-
nance conditions.