VAMP 221
Arc protection system
Operation and configuration instructions
VAMP Ltd
28
VAMP 24h Technical Support: +358 (0)20 753 3264
VM221.EN013
When any component of the current measuring system detects
a current exceeding the setting value of the unit, it sends
current information to all other units. The I>int indicator light
is lit when the central unit measures the overcurrent. If the
current information is obtained from outside the central unit
(either through the BI/O bus or from a current I/O unit), the
I>ext LED indicator light is lit. The indicator light of the
activated stage is lit in the current I/O unit (VAM 4C).
CURRENT
USE THE TRIMMER FOR SET THE LEVEL
OF PICK-UP CURRENT L1/L3
CURRENT IN PHASE 1
CURRENT IN PHASE 2
CURRENT IN PHASE 3
USE THE TRIMMER FOR SET THE LEVEL
OF PICK-UP CURRENT Io/L2
Curren_E
Figure 3.1.2-2 Reading measured currents in the CURRENT mode
To read the current values measured by the central unit, do the
following:
•
Select the CURRENT mode using the up and down
arrow keys.
•
The earth fault current/phase 2 current setting value
appears on the screen (I
0
).
•
Press the right arrow key to view the phase current
setting value and instantaneous values measured in
the current measuring channels.
