VAMP 221
Arc protection system
Technical description
VAMP Ltd
80
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VM221.EN013
7.2.5.
VAMP 4R
VAMP4R Block diagram
VAMP 4R
12 11
9 8
6 5 4
3 2 1
1 2
3 4
5 6
7 8
9 10
11 12 13 14 15 16
19 20 18
:X2
X1:
+
-
+
-
+
-
+ 24 Vdc
18...265 V ac/dc
Group 1
Group 2
Self
supervision
alarm
Figure 7.2.5-1 VAMP 4R block diagram
The multiplying relay VAMP 4R can be used when additional
trip outputs are needed.
VAMP 4R comprises 4 N/O contacts and 4 N/C contacts. They
are divided into two separate groups which can be
independently controlled by e.g. the binary output of the I/O
units or the central unit ( VAMP 221 ).
•
Attach the VAMP 4R unit to a DIN rail.
•
Connect the auxiliary voltage ( +24V ) to terminal X2-1
(+) and X2-2 (-). Terminals X2-3 and X2-5 are parallel
inputs to X2-1(+). Terminals X2-4 and X2-6 are parallel
inputs to X2-2(1). The auxiliary voltage ( +24V ) can be
supplied from the central unit or nearest slave ( X2-1 (+),
X2-2 (-)).
•
Connect the required signal (18-265 V ad/dc) to the trip
control inputs.
•
Input “TRIP 1” ( X2-11, X2-12 ) is controlling the trip
group 1.
Input “TRIP 2” ( X2-8, X2-9 ) is controlling the trip group
2.
•
There are 2xN/C + 2xN/O contacts per trip group.
If necessary, input TRIP 1 and 2 can be connected in parallel.
Then all trip relays will operate simultaneously.
