Table of Contents
Advertisement
Eaton 91PS/93PS UPS 8–40 kW
7.5
7.5.1
Make sure that the load level does not exceed the single UPM capacity.
To start an individual power module in the double conversion mode:
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 to become active and indicate logic power.
8.
In the home screen, press Controls.
The System controls screen is displayed.
9.
In the System controls screen, check that the UPS status is shown as
SHUTDOWN.
10. Check that there are no active alarms.
11. In the System controls screen, press Module controls.
The Select module screen is displayed.
12. Select the UPM you want to start.
The UPM control screen is displayed. The UPM status is shown as
SHUTDOWN.
13. In the UPM control screen, select Start module.
14. Wait for the following messages to appear sequentially on the UPM status
line:
READY
ACTIVE
The UPM rectifier and inverter turn on and the UPM transfers to the double
conversion mode and supplies the critical load.
7.5.2
A single UPM in the system can be shut down only if it is redundant. In practice,
this means that a UPM is not allowed to be shut down if doing so would lead to
an overload condition in the remaining UPMs or UPSs in the system.
To shut down a single UPM:
1.
In the home screen, press Controls.
The System controls screen is displayed.
2.
In the System controls screen, press Module controls.
©
Eaton Corporation plc 2018. All rights reserved.
UPM control instructions
Starting the UPMs
Shutting down the UPMs
Revision: 005
Document ID: P-164000493
User's and installation guide
95 (117)
Advertisement
Table of Contents
