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www.tescom-ups.gr
USER MANUAL
DS 300H Series � 3/3 � 30 kVA � UPS CONTROLLED UPS
Status Inverter system fault
Description In parallel system UPS decided to be master but there is AC voltage at the UPS
output
Restart Restart UPS again
Returning to fault Directly fault
Check the followings:
-Turn off all UPSs in parallel system and restart again
-If the code is still showned call service
820 Status code
Status Inverter alarm
Description In parallel system while in slave mode , MASTER communication lost for 8
periodes ,inverter stopped
Restart Wait until UPS provide MASTER communication
Returning to fault --
Fault code --
821 Status code
Status Inverter alarm
Description MASTER syncron failed while SLAVE UPS ,inverter stopped
Restart Wait until UPS provide MASTER synchronization
Returning to fault --
Fault code --
822 Status code
Status Inverter alarm
Description MASTER frequency exceeded minimum limit ,inverter stopped
Restart İf master frequency is okay automatic
Returning to fault --
Check the followings:
-Check each UPS output frequency selection in parallel system
823 Status code
Status Inverter alarm
Description MASTER frequency exceeded maximum limit ,inverter stopped
Restart İf master frequency is okay automatic
Returning to fault --
Check the followings:
-Check each UPS output frequency selection in parallel system
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824 Status code
Status Inverter alarm
Description MASTER DC voltage zone 7,My DC voltage zone 1 inverter down
Restart İf mains input voltage is okay automatic
Returning to fault --
Check the followings:
-Check the mains input power of the UPS
- If input power is OK wait until batteries are fully charged
- If the mains input power is shurdown check the other UPSs mains input power (in parallel system if the
same A/H rating batteries are used at each UPS the battery discharge timebe same for each UPS) If the
other UPS is continue to run check the batteries of this UPS.
-Call service
825 Status code
Status Inverter alarm
Description SLAVE DC voltage zone 7,My DC voltage zone 1 inverter down
Restart İf mains input voltage is okay automatic
Returning to fault --
Check the followings:
-Check the mains input power of the UPS
- Check the battery status of this UPS
- Call service
826 Status code
Status Inverter alarm
Description MASTER DC voltage zone 7,My DC voltage zone 1 trying to join system
Restart İf mains input voltage is okay automatic
Returning to fault --
827 Status code
Status Inverter alarm
Description SLAVE DC voltage zone 7,My DC voltage zone 1 trying to join system
Restart İf mains input voltage is okay automatic
Returning to fault --
831 Status code
Status Inverter warning
Description SLAVE UPS L1 phase output is not connected to load
Restart --
Possible causes of this status code:
-Check L1 phase UPS output fuse
-Check L1 phase output switch LEG
-Check the SLAVE UPS L1 phase output terminal for bad
connection
- Check the SLAVE UPS L1 phase output cable to load L1 phase
- Call service
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