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9
Troubleshooting
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A SERVICE
ENGINEER FROM THE MANUFACTURER OR FROM AN AGENT CERTIFIED BY THE
MANUFACTURER.
WARNING!
9.1
Alarms
In the event of an alarm condition the red LED-Indicator "Alarm" and the audible alarm will turn on.
In this case proceed as follows:
1.
Silence the audible alarm by pressing the button "Reset".
2.
Identify the cause of the alarm condition by means of the EVENT LOG in the MAIN menu.
3.
In case of doubts please contact the Service Team.
4.
Fault identification and rectification information is given on the following pages.
9.2
Fault Indentification and Rectification
The major alarm conditions that will be encountered are:
Alarm Condition
MAINS RECT. FAULT
MAINS BYP FAULT
OUTPUT SHORT
OVERLOAD
TEMPERATURE HIGH
INV. PHASE FAULT
SYNCHRON. FAULT
BATTERY IN DISCHARGE
MANUAL BYP IS CLOSED
Table 13: Troubleshooting
In case of alarms not included in the list above, please contact the nearest authorized service center for assistance.
Meaning
Mains power supply is outside prescribed
tolerance.
Mains power supply is outside prescribed
tolerance.
There is a short circuit at the output of UPS (on
load side).
Load exceeds the UPS rated power.
UPS temperature has exceeded the allowed
value.
Inverter is faulty.
The inverter and mains are not synchronised.
Battery is near end of autonomy.
Maintenance Bypass closed. Load supplied
by mains.
Suggested Solution
The input power to UPS is too low or missing.
If site power appears to be OK, check the input circuit
breakers etc. supplying the UPS.
The input power to UPS is too low or missing.
If site power appears to be OK, check the input circuit
breakers etc. supplying the UPS.
Check all output connections and repair as required.
Identify which piece of equipment is causing the overload
and remove it from the UPS.
Do not connect laser printers, photocopiers, electric
heaters, kettles etc. to the UPS.
Check that the ambient temperature of the UPS is less
than 40° C.
If the ambient temperature is normal call the authorized
service center for assistance.
Call the authorized service center for assistance.
The frequency of the input voltage to the UPS is outside
operational limits and the UPS static bypass has been
temporarily disabled.
Shutdown load connected to UPS before the UPS
switches itself off to protect its batteries.
This alarm is only displayed if the UPS is on
Maintenance Bypass.
Conceptpower DPA 500 480V UL │94-12-043275 A02 53
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