Eaton 93T - 6.7 Transfer from Maintenance bypass mode to Online mode

66..77 TTrraannssffeerr ffrroomm MMaaiinntteennaannccee bbyyppaassss mmooddee ttoo OOnnlliinnee mmooddee
For the usual initial position, refer to the following figure.
Figure 61. Switch status in Maintenance bypass mode
1. Maintenance bypass
2. Maintenance bypass switch (MBS)
3. Output
4. Output switch
5. Rectifier input switch
6. Rectifier input
7. Static bypass input
8. Bypass switch
To transfer the system from Maintenance bypass mode to Online mode:
1. Close the input switch to turn on the UPS rectifier input.
2. Close the bypass switch to turn on the UPS bypass input.
3. Close the output switch to turn on the UPS inverter output.
4. Close the external battery switches, including the neutral battery wire.
5. Complete the UPS startup steps (Bypass mode).
Refer to Section
6.3.2 Start the UPS in Bypass mode.
6. Open the maintenance bypass static switch to turn off the UPS maintenance bypass switch (MBS)
output.
7. Transfer the system from Bypass mode to Online mode.
Refer to Section
6.3.5 Transfer from Bypass mode to Online mode.
Figure 62. Switch status in Online mode
1. Maintenance bypass
2. Maintenance bypass switch (MBS)
EATON 93T USER’S AND INSTALLATION GUIDE 614-40270
-
December 2023 www.eaton.eu 8844