Eaton 93E UPS 15-80 kVA (380/400/415 V)
Installation and Operation Manual
© Eaton Corporation plc 2015. All rights reserved.
Revision: 001
Document ID: 614-01975-00
112 (133)
7.4.6
Single UPS restart
To restart a single UPS from a shutdown state:
1.
Close the MOB for the UPS being restarted.
2.
Close the UPS input and bypass feeder circuit breakers for the UPS
being restarted.
3.
Close the rectifier input switch.
4.
If the UPSs are wired for dual input, close the bypass input switch.
5.
Close the output switch.
6.
Close the external battery breakers.
7.
On the UPS being restarted, wait until the UPS control panel display
becomes active and indicates logic power.
8.
Check that there are no alarms active on the UPS being restarted.
9.
On the UPS being restarted, select the CONTROLS symbol in the
main menu bar.
The System Control screen is displayed.
10.
If not already selected, select UPS in the System Control screen.
11.
In the UPS System Control screen, select the UPS OFF
→
NORMAL command and press the
push button.
12.
If requested, enter the Level 1 password. The default password is
1111.
The rectifier and inverter turn on. The inverter continues to ramp up
to full voltage.
Once the inverter reaches full voltage, the UPS output relay closes
and the static switch turns off.
Power is now supplied to the critical load in the standard normal
mode along with the other UPSs online. It takes approximately one
minute for the UPS to achieve the standard normal mode.
The normal mode status indicator is illuminated.
7.4.7
UPS and critical load shutdown
To perform maintenance or service on the critical load, shut down power
to the load:
1.
Turn off all the equipment that is being powered by the UPS parallel
system.
2.
Transfer the UPSs to bypass by performing the procedure in
Section 7.4.3.
