Tescom DS3550 User Manual page 27

A08 ON MAINTENANCE
A09 MANUAL BYPASS
A10 BATTERY LOW SHUT
A11 REPO STOP
A12 DC BALANCE BAD
A13 PEAK CURRENT
A14 INV NOT START
A17 BYPASS FAILURE
A18 BYPASS VOLT
A19 BYP FREQ.TOLER
A20 OVERLOAD
A21 OVERTEMP
A22 OUTPUT OFF
A23 ON BYPASS
A24 REVERSE CURRENT
A25 INV RESET
A26 BATTERY LOW
A27 GENERATOR MODE
A28 O/P PHASE LOSS
A29 SYNCHRON BAD
A30 SHORT CIRCUIT
A31 OUTPUT SWITCH
A32 SERVICE LOGIN
A34 BYP ROTATE PHASE
A35 INV STOP
A36 INV DC DOWN
A37 AC CURR LIMIT
A38 FUSE FAILURE
A39 PSP FAILURE
A40 INVERTER START
A43 USER LOGIN
A45 SERV.PASSWORD
If any alarm shown on the LCD panel without A00 and R00 message UPS will start automatically if the
conditions are normal. But if you see A00 or R00 code with any alarm together you must CALL SERVICE !
If the message is warning UPS continues to run there is no problem.
To support technical service status cods are used, each status code tells different event to us.
Alarm Maintenance by-pass switch on
Alarm Load is transferred to by-pass from front panel
Alarm Inverter measured battery voltage is low (shutdown level)
Alarm External REPO input signal sensed
Alarm Before inverter start fitler capacitors dont discharged
Alarm Very high current at the UPS output
Alarm Inverter module start failed
Warning By-pass input voltage failure
Warning By-pass input voltage out of tolerance
Warning By-pass input frequency out og tolerance
Warning Currently the load exceeded 100% capacity
Warning Currently inverter power modul heatsink temperature is high
Warning There is no UPS output voltage
Warning Load is on bypass
Warning Regenerative backfeed to UPS output
Warning Inverter module power on
Warning Batteries are going to full discharge
Warning Generator set is running
Warning Anyone of the UPS output phases there is no voltage
Warning Inverter is not synchron to by-pass input
Warning Short circuit occured at the UPS output currenty normal
Warning Output switch of the UPS is off
Warning Service login active
Warning By-pass phase sequency incorrect
Warning Inverter module interrupted
Warning DC BUS voltage is less then 120 volts DC
Warning Inverter output current limited
Warning Any fuse in UPS is blowned
Alarm Inverter control board power supply out of tolerant
Warning Inverter is in soft start stage wait for finish
Warning User logged in to UPS
Fault For UPS startup service password required
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