COMBA mPICO Series - TROUBLESHOOTING

USER MANUAL FOR mPICO SERIES
ENU Status : 1-0-1
Copyright - refer to title page
Page 62
6 TROUBLESHOOTING
Following installation and commissioning, troubleshooting tasks to handle alarms may be required. Here
below is the alarm list of the equipment and diagnosis.
Table 13: Alarm List and Diagnosis
Alarm
Diagnosis
AC Power Failure Alarm
 Check AC power cable and verify AC mains supply is normal.
During power failed alarm, DC power supply has no output.
Li-ion Battery Fault Alarm
 Check if the Li-ion Battery connection is correct or any damage
of the battery;
 Replace the fault Li-ion Battery if it couldn't be energized.
UL/DL PLL Alarm
 Check if the Integrated Module’s power and wire connected;
 If it is ok, replace the Integrated Module
DL Output Power Low Alarm
 Reset the output power low threshold;
 Reset the ATT value to increase the Gain;
 Check if Channel No. setting is correct;
 Check the cable connections;
 If alarm can not be cleared, check the equipment.
DL Input Power Overload
Alarm
 Eliminate alarm by correct setting of the input power overload
threshold;
 Check if the intensity of signal source is large enough;
 If alarm cannot be cleared, check the equipment.
Device Over- temperature
Alarm
 Eliminate alarm by setting of temperature threshold;
 If alarm cannot be cleared, apply climatic protection to the
equipment.
End of Section