NetSure
™
DC/DC Converter Module
User Manual, UM1C48241500 (Revision E, July 20, 2015)
Spec. No: 1C48241500
Code: UM1C48241500
Model No: C48/24-1500
Revision E, July 20, 2015
6
Converter Module Fault Symptoms and Troubleshooting
The fault indicators that can be displayed by the converter module are as follows.
Refer to
for a list of possible causes and corrective actions.
•
Power Indicator (Green) OFF
•
Protection Indicator (Yellow) ON
•
Protection Indicator (Yellow) Flashing
•
Alarm Indicator (Red) ON
•
Alarm Indicator (Red) Flashing
Table 4.
Converter Module Troubleshooting
Symptom
Possible Cause(s)
Suggested Action(s)
Power Indicator
(Green) Off
No input voltage.
Make sure there is input voltage.
Internal input fuse open.
Replace the converter module.
Protection
Indicator
(Yellow) On
DC input voltage outside
the normal range.
Correct the DC input voltage to within the acceptable
range.
Moderate load sharing
imbalance.
Check if the converter module is properly seated in the
shelf. If this does not correct the fault, replace the
converter module.
Converter module not
inserted into the slot
completely.
Remove and properly insert the converter module.
Converter module over-temperature protection, which could be caused by:
1. Fan rotor blocked.
1. Remove any object that may be blocking the fan.
2. Ventilation blocked
(inlet or outlet).
2. Remove any object that may be blocking the inlet or
outlet.
3. Ambient temperature
too high or converter
module inlet too close to a
heat source.
3. Lower the ambient temperature or relocate the heat
source.
Protection
Indicator
(Yellow)
Flashing
Converter module
communication failure.
Check the communication cables.
Remove and properly insert the converter module.
Alarm
Indicator
(Red) On
Output over-voltage
shutdown. Severe load
sharing imbalance.
Remove the converter module from its shelf and then
reinstall after 30 seconds. If converter module fails to
start or shuts down again; replace the converter
module.
Converter module
addresses contradictory.
Replace the converter module.
Alarm Indicator
(Red) Flashing
Fan not operating
(converter module shuts
down).
Replace the converter module.
