VAMP 220 / 220R Arc protection system
User manual
VAMP Ltd
54
Vamp 24h support phone : +358 (0)40 573 6316
VM220.EN004
6.7. Testing the arc sensors
After the arc sensors have been mounted and connected to the
slave units, and the system configuration has been read to the
memory of the master unit, the function of the arc sensors and
the data transfer between the slaves and the master unit must
be tested.
Before starting the testing, ensure that no trip signal will be
generated when the arc sensors are activated. Tripping of the
circuit-breaker can be avoided by disconnecting the circuit-
breaker trip circuit, or alternatively by increasing the start
value of the overcurrent subunit to a level where it cannot start
in any circumstances.
Verify proper operation of the sensors and the data transfer by
performing the following test on each arc sensor:
Expose the active part of the sensor to strong light, for
instance, from an electric torch.
Check that the arc sensor is activated. The TEST/ERROR
indicator of the slave unit should be lit, and the address of the
tested arc sensor (slave address and connector number) should
appear on the display of the master unit.
NOTE!
Remember to restore the trip circuits and the start value of the
overcurrent unit after completing the test if changes were
made.
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