VAMP Ltd
Arc protection system
Technical description
VAMP 221
VM221.EN013
VAMP 24h Technical Support: +358 (0)20 753 3264
53
4.7.4.
VAM 4C
X1-1,3 : Current input
IL1
X1-5,7 : Current input
IL2 / Io
X1-9,11 : Current input IL3
X2-1 : +24V supply from master unit or external power supply
X2-2 : GND
X2-3 : CAN-L
X2-4 : CAN-H
X2-5 : Serial B
X2-6 : Serial A
X2-7 : DI GND
X2-8 : DI (24-48Vdc)
X2-9 : DO GND
X2-10: DO +24Vdc
X2-11:
X2-12:
X2-13:
X2-14:
X2-15:
X2-16:
Zone information (L>, I>)
master slave com
Trip relay (NO)
L>
TRIP
= COM1,
COM2
L1/L3 L2/Io
4.0
2.0
1.0
0.5
0.1
x In
POWER
COM
ERROR
COM 1
COM 2
L1
L2
L3
CURRENT TRANSFORMER
Addr.
Zone2
Zone1
Zone4
Zone3
SW1
TRIP
VAM 4C
16 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
X2
X1
VAM4c_conn
Figure 4.7.4-4.7-1. VAM 4C interfaces