X20 system modules • Digital output modules • X20DO6325
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X20 system User's Manual 3.10
4.15.19.9 Open line detection
Each output is equipped with an internal 200 kOhm resistor to 24 V for open line detection.
If the charging resistance at the terminal is greater than 25 to 100 kOhm (tolerance range) an open line is therefore
detected at 24 V. When switched on, this corresponds to a current of 0.2 to 1 mA with all tolerances taken into
consideration.
Supply voltage
Min. load
Max. load
Corresponds to load current when ON
24 V
100 kOhm
25 kOhm
0.2 to 1 mA
4.15.19.10 Switching inductive loads
Environmental temperature: 60°C, all outputs with the same load
0.1
1
10
100
10 mH
100 mH
1 H
10 H
100 H
100
10
1000
Coil resistance
[Ω]
Coil inductance
Max. switching cycles / second
(with 90% duty cycle)
28.8 V
24.0 V
Switching voltage:
Information:
If the maximum number of operating cycles per second is exceeded, an external inverse diode must
be used.
Operating conditions outside of the area in the diagram are not permitted!