B&R BRCOMP1-0 Anwenderhandbuch Seite 151

11.4 SWITCHING RESISTIVE-INDUCTIVE LOAD
When switching resistive-inductive loads, attention must be paid to coil resistance and to coil
inductivity.
The diagram shown below indicates the maximum number of switching cycles per second in connection
with the coil resistance and coil inductivity. All outputs are switched simultaneously (0.5 A at 24 V).
Ω
Coil resistance [ ]
1000
120
100
48
24
This range not allowed:
Output is thermally switched off.
10
0.01
Maximum number of switching cycles per second
Switch-on time t < 10 sec
1000 Henry
0.1 1
on
B&R COMPACT PLC
100 Henry 10 Henry
2 H
10
4 Frequency [Hz]
Switch-on time t < 50 %
on
1 Henry
0.1 Henry
0.01 Henry
100
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