Eaton 93T - 8 Troubleshooting; 8.1 About troubleshooting; 8.2 Alarms

8 Troubleshooting
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If the UPS is not operating correctly, read the fault description form, contact your local Eaton
representative, and provide the following information:
1. Product model and serial number of the unit
2. Fault date
3. Description of the fault
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Table 18. UPS alarms and faults
Alarm
number
Alarm name Possible cause Solution
2
Bypass AC Under Voltage The bypass switch is not
on.
Close the bypass switch.
5
Input AC Under Voltage The input switch is not on. Close the input switch.
14
Inverter Output Over
Current
The load is a nonlinear load
and has a large capacity.
Contact your local service
representative.
24
Battery DC Over Voltage The battery voltage sensors
have detected a battery
voltage greater than
2.45 VPC.
Contact your local service
representative.
29
Bypass Phase
Rotation Failed
Incorrect bypass wiring Examine the bypass wiring.
53
Fan Failed The fan is not operating
correctly.
Contact your local service
representative.
54
Site Wiring Fault Incorrect ground zero wiring Examine the ground wire
and the neutral wire.
59
Output Voltage Abnormal The Maintenance bypass
switch is closed or the
output sample voltage has
been detected abnormal.
If the maintenance bypass
switch is closed, open it.
If the output sample voltage
has been detected
abnormal, contact your local
service representative.
61
Configuration Error Battery cell configuration
required
Configure battery cells
(EEP 5302).
Contact your local service
representative, if necessary.
EATON 93T USER’S AND INSTALLATION GUIDE 614-40270
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December 2023 www.eaton.eu 9922