9.1 Connections 9 Technical data Technical description
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9.1.8. Arc protection interface (option)
Number of arc sensor inputs 2
Sensor type to be connected VA 1 DA
Operating voltage level 12 V dc
Current drain, when active > 11.9 mA
Current drain range 1.3…31 mA (Note! If the drain is outside the
range, either sensor or the wiring is defected)
Number of binary inputs 1 (optically isolated)
Operating voltage level Voltage selectable in order code (same as DI
threshold voltage):
A: 24 V dc
B: 110 V dc
C: 220 V dc
Number of binary outputs 1 (transistor controlled)
Operating voltage level +48 V dc
NOTE! Maximally three arc binary inputs can be connected to one arc binary
output without an external amplifier.
9.1.9. Analogue output connection (option)
Number of analogue mA output channels 1
Maximum output current 1 - 20 mA, step 1 mA
Minimum output current 0 - 19 mA, step 1 mA
Exception output current
0 – 20.50 mA, step 25 μA
Resolution 10 bit
Current step
< 25 μA
Accuracy Class 1
Load resistance RL < 600W
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