Figure 45. Normal positions of the MBS switches and rectifier disconnect switch
(must be located in the site wiring)
A Static bypass input 1 Maintenance Bypass Switch (MBS)
B Rectifier input
C Out
2. Perform the transfer from the double conversion mode to the bypass mode
as instructed in Section
7.3.3
. Remember to verify the transfer before
proceeding to the next step.
3. Turn the MBS from the UPS position to the Test position and then to the
Bypass position.
4. Perform the LOAD OFF procedure as described in Section
7.3.8
.
5. Turn off the rectifier switch to disconnect the UPS rectifier input.
6. Turn off the static bypass switch to disconnect the UPS bypass input.
The UPS is now in the maintenance bypass mode:
Eaton 93PM UPS 30–200 kVA
User's and installation guide
©
Eaton Corporation plc 2017. All rights reserved. Revision: 005 Document ID: P-164000249 104 (126)
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