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VAMP 221
Arc protection system
Operation and configuration instructions
VAMP Ltd
26
VAMP 24h Technical Support: +358 (0)20 753 3264
VM221.EN013
3.1.1.
Arc fault
Power
Com
Error
Trip 4
Trip 2
Trip 3
I>int.
I>ext.
Trip 1
VAMP 221
Arc Protection Relay
Run
Install
Info
Temp set
Temp
Current
Error code
front_arc
Figure 3.1.1-1 VAMP 221 has tripped due to arc fault, light indication I/O
unit 1 sensor 1
SENSOR INPUTS
1
2
3
4
5
6
7
8
9
10
SENSOR INPUTS
1
2
3
4
5
6
7
8
9
10
X1
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20
VAM10L_havahtunut
Figure 3.1.1-2 VAM 10L indicates light on channel 1
When the arc protection activates due to arc fault, the alarm
relay activates and the trip indicator lights indicate the
activated output trip relays.
The display at the central unit shows which arc sensor first
gave the light information. This sensor information is only
visible in the RUN mode. If several sensors were activated
during the fault, the other activated sensors can be identified
from the arc sensor leds (I/O units’ indicator lights). The
address of an activated sensor is stored in the fault memory,
even if activation did not lead to tripping. See Figure 3.1.1-2.
When the light information is transferred via the BI/O bus, the
source of the light information is not visible on the display and
the source must be located using other VAMP protection relays
connected with the BI/O bus.