9.1 Connections
9 Technical data
Technical description
216
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VM50.EN004
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
μ
A
Resolution 10
bit
Current step
< 25
μ
A
Accuracy Class
1
Load resistance
RL < 600W