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7XG3124 Commissioning Guide
2.4 Apply a Global ARC Fault block.
Item
Description
1
Initiate the operation of each sensor by the use of a suitably
powered camera flash
2
Confirm blocking of the arc fault trip output contacts
3
Confirm blocking of the SARC GOOSE messages from the
RA24
2.5 Sensor Failure Alarm Trouble Shooting
Item
Description
1
If any arc sensor LED's are flashing re-check the RA30 wiring
integrity
2
Check that the sensors are wired to the correct sensor inputs
3
Using a web browser session check that the correct sensor inputs
are enabled and any unused sensor inputs are disabled
4
If the Sensor Alarm persists disable all of the sensor inputs and check
that all Sensor Alarm indications are extinguished
2.6 ARC Sensor Supervision Trouble Shooting
Item
Description
1
If there is a Sensor Alarm indication re-check the RA30 wiring
integrity
2
Check that the sensors are connected to the correct arc sensor inputs
and check that the correct sensor inputs are enabled and unused inputs
are disabled
3
Check for high ambient lighting conditions for all the sensors
2.7 ARC Trip Trouble Shooting
If an arc trip occurs without an ARC being present this indicates either:
- a very high ambient light condition is triggering a sensor
or
- short circuit wiring of a RA30 sensor
In both cases if the condition persists the Supervision output will operate after a 10 sec delay.
Item
Description
1
Check the RA30 wiring integrity of the sensors
2
Check for high ambient lighting conditions for all the sensors
©2014 Siemens Protection Devices Limited
Table 4: Global Arc Fault Block
Table 5: Sensor Failure Alarm
Table 6: Arc Sensor Supervision
Table 7: Arc Trip Trouble Shooting
Complete
Complete
Complete
Complete
Chapter 3 Page 6 of 8
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Troubleshooting
