Menu structure of the 91PS/93PS UPS .................. 91
Signing in .................................................................... 94
System control instructions ............................................. 95
7.4.1
Start the UPS system in the bypass mode............... 96
Shutting down the UPS system and critical load ....... 99
De-energizing the critical load .............................. 99
UPS control instructions ............................................... 100
7.5.1
Starting a single UPS ....................................... 100
Shut down a single UPS.................................... 101
Enable and disable the battery charger................. 101
UPM control instructions............................................... 101
7.6.1
Starting the UPMs ........................................... 101
Shut down the UPMs........................................ 102
Using the Remote Emergency Power-off switch................. 103
UPS maintenance .................................................................. 108
Introduction to UPS maintenance ................................... 108
Important safety instructions.......................................... 108
Preventive maintenance ............................................... 109
8.3.1
Daily maintenance ............................................110
Monthly maintenance ........................................110
Periodic maintenance ........................................110
Annual maintenance ......................................... 111
Battery maintenance ......................................... 111
Recycling the used UPS or batteries ................................ 111
Maintenance training ....................................................112
© Eaton Corporation plc 2020. All rights reserved.
Revision: 006
Document ID: P-164000493
5 (126)
Eaton 91PS/93PS UPS 8–40 kW
User’s and Installation Guide