Tescom DS300B Series, User Manual

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A25 INV RESET Warning Inverter module power on
A26 BATTERY LOW Warning Batteries are going to full discharge
A27 GENERATOR MODE Warning Generator set is running
A28 O/P PHASE LOSS Warning Anyone of the UPS output phases there is no voltage
A29 SYNCHRON BAD Warning Inverter is not synchron to by-pass input
A30 SHORT CIRCUIT Warning Short circuit occured at the UPS output currenty normal
A31 OUTPUT SWITCH Warning Output switch of the UPS is off
A32 SERVICE LOGIN Warning Service login active
A34 BYP ROTATE PHASE Warning By-pass phase sequency incorrect
A35 INV STOP Warning Inverter module interrupted
A36 INV DC DOWN Warning DC BUS voltage is less then 120 volts DC
A37 AC CURR LIMIT Warning Inverter output current limited
A38 FUSE FAILURE Warning Any fuse in UPS is blowned
A39 PSP FAILURE Alarm Inverter control board power supply out of tolerant
A40 INVERTER START Warning Inverter is in soft start stage wait for finish
A43 USER LOGIN Warning User logged in to UPS
A45 SERV.PASSWORD Fault For UPS startup service password required
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.