Chapter 11 : Troubleshooting - Delta RT Series User Manual

1. When a problem occurs, please check if the following situation exists before contacting Delta
service personnel:
 Is the main input voltage present?
2. Please have the following information ready before contacting the Delta service personnel:
 Unit information including model, serial number, etc.
 An exact description of the problem; the more detailed, the better.
3. When you see the following problems occur, please refer to the solutions shown below.
Error
Meaning
Code
DC Bus Over
0X8221
Shutdown -
Positive
DC Bus Over
0X8241
Shutdown -
Negative
DC Bus Under
0X82A1
Shutdown -
Positive
DC Bus Under
0X82C1
Shutdown –
Negative
0x1200
INV Volt Abnormal
Output Overload
0x1101
Shutdown
0xA000
Charger Fault
INV IGBT Over
0X2402
Heat Shutdown
PFC Over Heat
0X2402
Shutdown
Amplon RT Series

Chapter 11 : Troubleshooting

Possible Cause
1. The output is connected
to capacitive loads or
inductive loads.
2. The UPS has an internal
fault.
1. The output is connected
to capacitive loads or
inductive loads.
2. The UPS has an internal
fault.
The UPS has an internal
fault.
The UPS has an internal
fault.
The UPS has an internal
fault.
The UPS is overloaded.
The UPS has an internal
fault.
1. The vents are blocked.
2. The UPS has an internal
fault.
1. The vents are blocked.
2. The UPS has an internal
fault.
1.
2.
1.
2.
Please contact service
personnel.
Please contact service
personnel.
Please contact service
personnel.
Check the power consumption of
the loads, and remove the
unnecessary loads.
Please contact service
personnel.
1.
2.
1.
2.
48
Solution
Remove the capacitive
loads or inductive loads.
Please contact service
personnel.
Remove the capacitive
loads or inductive loads.
Please contact service
personnel.
Check whether the vents
are blocked.
Contact service personnel.
Check whether the vents
are blocked.
Contact service personnel.