Transfer From The Normal Mode To Internal Maintenance Bypass - Eaton 93E Installation And Operation Manual

7.3.7
Do not use the internal Maintenance Bypass Switch (MBS) in UPSes
that are installed as a parallel system.
To transfer the load to maintenance bypass:
In the UPS System Control screen, select the NORMAL → BYPASS
1.
command and press the
2. Loosen the screws that fix the cover over the maintenance bypass
switch.
This action signals the UPS to transfer to static bypass (if the UPS is
not already on static bypass). See Figure 36 for the switch
arrangement.
3. Check that that the LCD/LED display indicates that the UPS is in the
bypass mode.
4. Close the maintenance bypass switch.
5. Open the bypass input and output switches separately.
6. Loosen the screws that fix the cover over the neutral switch (60-80
kVA) and open the neutral switch.
.
Only service technicians are allowed to operate the neutral switch.
Otherwise, keep the neutral switch closed.
Only authorized Eaton Customer Service Engineers are allowed to
perform the maintenance bypass operation.
Power is present inside the UPS cabinet.
© Eaton Corporation plc 2015. All rights reserved.
Eaton 93E UPS 15-80 kVA (380/400/415 V)
Transfer from the normal mode to internal maintenance
bypass
WARNING
push button.
DANGER
WARNING
Revision: 001
Document ID: 614-01975-00
Installation and Operation Manual
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