VAMP Ltd
Arc protection system
Technical description
VAMP 221
VM221.EN013
VAMP 24h Technical Support: +358 (0)20 753 3264
17
3.1.3.
System configuration
Configuration of the central unit VAMP 221 (1)
SW1 switch settings
Switch
Switch
Switch
Switch
Definition
Definition
Definition
Definition
Setting
Setting
Setting
Setting
Description
Description
Description
Description
1
Latch
0
Position ”1” (switch on the right):
trip relay is only operational while the
protection is activated
Position ”0” (switch on the left)
trip relay changes to latching status
after trip
2
L>&I> / L>
0
Position ”0” (switch on the left):
trip is activated by arc and current
criteria
Position ”1” (switch on the right)
- trip is activated by light criteria
alone
3
CBFP/
Fast
0
Position ”0” (switch on the left):
output trip relays 2 and 3 serve as
CBFP
Position ”1” (switch on the right)
output trip relays 2 and 3 serve as
fast trip
4
CBFP
100/150 ms
1
Position ”0” (switch on the left):
CBFP delay time 100 ms
Position ”1” (switch on the right)
CBFP delay time 150 ms
5
Relay
matrix
0
Relay matrix
6
Relay
matrix
1
Relay matrix
7
Relay
matrix
0
Relay matrix
8
central
unit/sub-
unit
0
Position ”0” (switch on the left):
central unit in central unit mode
Position ”1” (switch on the right)
central unit in sub-unit mode
Since VAMP 221 serves as the central unit for I/O units, VAMP
221 must be in the central unit operating mode.
Current pick
Current pick
Current pick
Current pick----u
u
u
up setting potentiometer settings L1/L3 and L2/I
p setting potentiometer settings L1/L3 and L2/I
p setting potentiometer settings L1/L3 and L2/I
p setting potentiometer settings L1/L3 and L2/I
0
0
0
0
L1 / L3
L1 / L3
L1 / L3
L1 / L3
Potentiometer settings are used to set the light activation level
for phase currents I
L1
and I
L3
. The setting zone is 0.5 … 6 x I
n
.
This current setting is separate from the I
L2
/I
0
setting.