Siemens SIMATIC ET 200SP Manual page 52

Switching of loads
B.1 Connecting capacitive loads
Remedy for detecting a short circuit
1. Determine the load current and capacitance of the load.
2. Locate the operating point in the diagram above.
3. If the operating point is above the trend, select an actuator with higher current
consumption so that the new operating point is below the curve.
Example
You have configured a maximum readback time light test/dark test of "0.8 / 1.0 ms". You
have set the load current to 20 mA and the capacity to 0.2 µF. The operating point is thus
outside the range defined by the trend (gray background).
Solution: Select an actuator with higher current consumption. In this example, 40 mA.
Alternatively, you can configure the parameter "Max. readback time light test / dark test" with
"3.0 / 5.0 ms".
52
Digital output module F-DQ 8x24VDC/0.5A PP HF (6ES7136-6DC00-0CA0)
Manual, 05/2017, A5E38578424-AA