Tecnoware EVO DSP PLUS MODULAR - Page 99

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UPS EVO DSP PLUS Modular 93 User’s manual
14 Troubleshooting
This chapter gives information about the procedures which shall be performed in case of abnormal operation.
If you fail to fix the problem consult authorized Technical Service with the following information:
 Model and serial number of the UPS, which can be found on the nameplate on the rear of the UPS.
 Description of abnormal operation and Fault code displayed on Control Panel.
If you have noticed an abnormality in operation; check the Protective Ground/Earth connections, examine the
circuit breakers positions, read alarms messages from the graphic LCD and refer to the table below. Apply all
suggestions corresponding to each anomaly.
If your issue is excluded or the suggested actions do not solve your problem, consult the Technical Service.
Risk of electric shock: do not remove the panels of cabinet. The UPS contains internal
parts which are at a high Voltage and are potentially dangerous, capable of causing
injury or death by electric shock.
There are no internal parts in the UPS which are user serviceable. Any repair or
maintenance work must be performed exclusively by qualified technical personnel
authorized by TECNOWARE.
TECNOWARE declines any responsibility if this warning is disregarded.
LCD Message
Explanation
Solution
Fault! Bus Over Voltage
DC Bus Voltage is too high
Contact service personnel.
Fault! Bus Under Voltage
DC Bus Voltage is too low
Contact service personnel.
Fault! Bus Voltage Unbalanced
DC Bus Voltage is not balanced
Contact service personnel.
Fault! Bus Short
DC Bus is short
Contact service personnel.
Fault! Bus Soft Start Time Out
The Rectifiers could not start due to low
DC Bus Voltage within specified duration
Turn off UPS and then restart the UPS.
If it fails again, contact service personnel.
Fault! Inverter Soft Start Time
Out
Inverter Voltage cannot reach desired
voltage in specified duration
Turn off UPS and then restart the UPS.
If it fails again, contact service personnel.
Fault! Inverter Voltage Over
Inverter Voltage is over peak value
Contact service personnel.
Fault! Inverter Voltage High
Inverter Voltage is too high
Contact service personnel.
Fault! Inverter Voltage Low
Inverter Voltage is too Low
Contact service personnel.
Fault! R Inverter Voltage Short
R phase Inverter Output is shorted
Contact service personnel.
Fault! S Inverter Voltage Short
S phase Inverter Output is shorted
Contact service personnel.
Fault! T Inverter Voltage Short
T phase Inverter Output is shorted
Contact service personnel.
Fault! RS Inverter Voltage Short
R-S Inverter Output is shorted
Contact service personnel.
Fault! ST Inverter Voltage Short
S-T Inverter Output is shorted
Contact service personnel.
Fault! TR Inverter Voltage Short
T-R Inverter Output is shorted
Contact service personnel.
Fault! Inverter R Negative
Power
R phase Inverter Output Negative Power
over range
Contact service personnel.