S1 adjustable
11800-0702-01
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8
Installation
The Current Sensor S1 can be mounted on the conductor with 2 screws M3, e.g. at a current bar, or with a
cable fastener.
Make sure that the conductor is closely led lengthwise along the side of the housing with the latches.
The direction of the current is not relevant.
The sensitivity depends on the distance from the cable, its diameter and the thickness of the insulation.
To avoid crosstalk from neighbouring cables has to be sufficient clearance.
The necessary clearance depends on the current in the neighbouring cable, e.g.:
at 10 A: >25 mm, at 20 A: >50 mm, at 40 A: >80 mm.
9
Commissioning
Connect Current Sensor S1 according to Connection Plan.
10
Error search
Output does
not switch on
•
Check adjusted limit
•
Distance from monitored cable is too high
•
no current trough monitored cable or current too low.
•
supply-voltage (24 V DC) is missing
•
Sensor misplaced (put on the cable and in parallel)
Output does
not switch off
•
Check adjusted limit
•
crosstalk from a current is a neighbouring conductor
•
sensor is in a magnetic field
•
output has internal short-circuit (defective)
11
Technical data
Rated supply voltage Us
DC 24 V
Tolerance
0.
8 … 1.2 Us
current consumption
max. 12 mA + max. 20 mA per output
monitoring function
current monitoring
Limit at Tu = 25°C
AC/DC > 5…30 A
Tolerance
± 20 %
Repeat accuracy
± 2 %
Temperature dependence
Typical < ±0.2 A / K
Maximal < ±0.45 A / K
Frequency of measured current
DC, AC 10 ... 400 Hz
Overload capacity, continuously
500 A
Overload capacity, max. 1 minute
1000 A
Switching-delay (on / off)
ca. 300 ms
Indication of the switching
LED yellow
Output PNP (Switching Plus)
Open collector
output current
≤ 20 mA
short circuit
≤ 3 s
Output NPN (Switching Minus)
Open collector
output current
≤ 20 mA
short circuit
≤ 3 s
