VAMP Ltd Arc protection system
User manual
VAMP 220 / 220R
VM220.EN004 Vamp 24h support phone : +358 (0)40 573 6316
27
If more than 4 parallel trip circuits are required, the separate
trip multiplier relay VAR 4 CE can be used. See section 5.6.
5.3.5. Wiring alarm circuits
The alarm signals generated by the arc protection system (trip
alarm, self-supervison alarm) can be forwarded to higher level
switchgear supervison and control systems through the alarm
output contacts.
Self-supervision alarms
A self-supervision alarm is issued when the self supervision
system detects a fault in the internal functions of the master
unit or in the number of connected sensors.
Connect the self-supervision alarm output to an SF change-
over contact, either terminals X1-17, X1-18 (normally open) or
X1-18, X1-19 (normally closed). See Figure 5.3.3-1.
Under no-internal fault (healthy) conditions with auxiliary
supply connected, the contact X1-17, X1-18 will be open and X1-
18, X1-19 closed.
Trip alarms
Trip alarms are generated when the arc fault system trips.
Connect the trip alarm output to the NO terminals X1-15, X1-
16.
5.3.6. Protective earthing
Connect the arc protection system to the earth from the PE
terminal marked on the back plate.
5.3.7. Wiring auxiliary supply
Connect the auxiliary supply voltage to the Us-input, terminals
X3-1, X3-2.
Option 24 Vdc, polarity of wiring: X3-1: + and X3-2: -.
NOTE!
If possible, the auxiliary supply should be taken from a power
source that is not interrupted when the arc protection system
operates.
CAUTION!
Keep the auxiliary supply disconnected as long as mounting or
wiring work is going on.
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