Eaton ARCON 2.0 Series, Operation And Configuration Instructions. Technical Description

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3.1.2. Overcurrent alarm
Figure: ARCON 2.0 activated due to overcurrent
Figure: ARC-EC1/2.0 indicates overcurrent on channel L2
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 master unit measures the overcurrent. If the current information is obtained from outside the
master 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 (ARC-EC1/2.0).
Figure: Reading measured currents in the CURRENT mode
ARC-EM/2.0
L1/L3 L2/Io
0.1
L1 L2 L3
CURRENT TRANSFORMER
X1
0.5
0.1
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