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Eaton 93E Generation 2 UPS 100-200 kVA
(380/400/415V)
Note: The maintenance bypass operation must be performed by an Eaton
authorized Customer Service Engineer.
Power is present inside the UPS cabinet.
Figure 40. 100-120 kVA Optional internal maintenance bypass switch arrangement
1
Output switch
2
Maintenance bypass switch
3
Bypass input switch
7.3.8
(optional on 100-120 kVA)
To transfer the load to the normal mode, perform the following procedure:
1.
Close the neutral switch, slide the cover plate right, and tighten the screws.
2.
Close the input and bypass input switches.
3.
Restart the UPS in bypass mode by performing the procedure in Section
7.3.2
4.
Verify that the UPS is in the bypass mode.
5.
Close the output switch.
6.
Open the maintenance bypass switch (MBS), slide the cover plate left, and
tighten the screws.
7.
Transfer the load to the double conversion (normal) mode. For instructions,
see Section
7.3.9
To perform maintenance or service on the critical load, shut down the power to
the load by performing the following procedure:
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Eaton Corporation plc 2019. All rights reserved.
Transferring from internal maintenance bypass to normal mode
.
7.3.1
7.3.4
or
Shutting down the UPS system and critical load
WARNING
4
Input switch
5
Neutral switch
.
Revision: 002
Document ID: P-164000848
User's and installation guide
92 (118)
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