Tescom DS300 Series, User Manual

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3.5 Alarm messages and quick troubleshooting
Alarm codes and messages are showed at the 4.line of the LCD panel various messages tells different
events at some messages user can make some simple controls and they can decide that they must call
service or not.
NOTE : If
R00 REC FAULT = XXXX
or
A00 INV FAULT = XXXX
message is shown on the LCD
panel the other alarm or warning messages will not be shown.
R00 REC FAULT = XXXX
Call service
R01 AC INPUT HIGH
The input voltage of the UPS is very high check the AC input voltage if really high wait until the voltage is
normal.
R02 LINE FAILURE
The input voltage of the UPS is very low ,check the AC input voltage if the input voltage is low wait until the
AC input voltage is normal.
R03 DC BUS HIGH
Call service
R05 FREQ TOLER
The AC input voltage frequency of the UPS is out of tolerance wait until the input frequency is normal.
R06 OVERTEMPERATURE
Overtemperature at rectifier module call service.
R07 BLACKOUT
There is a short blackout at the AC input voltage of the UPS, this is temporary wait until the AC input voltage
is normal.
R08 I/P OVERCURRENT
Call service
R09 ROTATE PHASE
The phase sequency at the UPS input is reverse please refer to a technical personnel to provide correct
phase sequency
R14 PFC MANUAL STOP
This message shows that rectifier is stopped for any alarm reason check the other alarm shown together
with this alarm.
R15 DC LOW
DC BUS voltage or battery voltage is very low wait 10 minutes then call service
R17 BATTERY TEST
For 30 seconds UPS is performing battery test at the end of the test UPS decides batries are OKEY or not,
then UPS returns to normal operation automatically.
R18 BOOST CHARGE
For 10 hours boost charge mode is activated from UPS, at the end of 10 hours UPS returns to normal
charge mode
R19 AC HIGH
The AC input votage of the UPS is 20% higher then nominal input votage, wait until the AC input voltage is
normal.