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Eaton 93PS UPS 8–40 kW
7.4
7.4.1
Make sure that the load level does not exceed the single UPS capacity.
To start the UPS:
1.
Open the UPS front door.
2.
If included inside the UPS system, check that the rectifier input switches
are closed.
3.
Check that the battery breaker is closed.
4.
Close the UPS front door.
5.
Close the UPS input feeder circuit breaker.
6.
Close the UPS bypass input feeder circuit breaker.
7.
Wait for the UPS control panel display to become active and indicate logic
power.
8.
In the home screen, press Controls.
9.
Press the UPS controls button.
In the UPS controls screen, the system status is shown as SHUTDOWN.
10. In the UPS controls screen, press the Go online button.
If Auto Bypass is enabled (factory default), the critical load is immediately
supplied by the bypass source in the bypass mode, until the inverter turns
on and the UPS transfers to the double conversion mode. The yellow
status indicator on the UPS control panel indicates that the UPS is in the
bypass mode. If auto bypass is not enabled, the UPS output remains off
until the UPS system transfers to the double conversion mode.
11. In the UPS control screen, press the Go online button.
12. Wait for the following messages to appear sequentially on the UPS status
line:
STARTING
ONLINE
The rectifier and inverter turn on. The DC voltage continues to ramp up to
full voltage. Once the DC link reaches full voltage and the battery breaker
is closed, the UPS output relay K3 closes. Power is now supplied to the
critical load in the double conversion mode. It takes approximately 20
seconds for the UPS system to achieve the double conversion mode.
The UPS system is now operating in the double conversion mode and the green
status indicator for normal operation is illuminated.
©
Eaton Corporation plc 2016. All rights reserved.
UPS control instructions
Starting a single UPS
Revision: 003
Document ID: P-164000493
User's and installation guide
85 (104)
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