Tescom DS3550 User Manual page 48

824 Status code
Status Inverter alarm
Description MASTER DC voltage zone 7,My DC voltage zone 1 inverter down
İf mains input voltage is okay automatic
Restart
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
İf mains input voltage is okay automatic
Restart
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
İf mains input voltage is okay automatic
Restart
Returning to fault --
827 Status code
Status Inverter alarm
Description SLAVE DC voltage zone 7,My DC voltage zone 1 trying to join system
İf mains input voltage is okay automatic
Restart
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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