Adjusting the maximum test duration for load with unknown capacitance

In order to determine the "Maximum test duration" parameter (Index 8705.2) for a load with unknown capacitance at a safe digital output (F-DO..), proceed as follows:

1. Select one of the two safe digital outputs, F-DO00 or F-DO01. Connect the load according to the selected connection type and set the "Connection type".
2. Set the "Maximum test duration" parameter (Index 8705.2) to the maximum value of 5000 μs.
3. Interconnect the selected output for at least 10 seconds.
4. Form the maximum value from the following values for the selected output:
• Value of display parameter "Maximum duration test pulse A" (Index 8703.37)
• Value of display parameter "Maximum duration test pulse B" (Index 8703.8)
5. Block the selected output for at least 10 seconds.
6. Form the maximum value from the following values for the selected output:
• Formed maximum value from step 4
• Value of display parameter "Maximum duration test pulse A" (Index 8703.37)
• Value of display parameter "Maximum duration test pulse B" (Index 8702.8)
7. In order to specify the "Maximum test duration" value (Index 8705.2), add a reserve of 500 μs to the maximum value determined in step 6.