Siemens SINAMICS S120 Commissioning Manual page 343

Trigger condition: Trigger on variable
1. Select a trigger parameter from the "Trigger variable" field. The following options are
available:
– Click on the icon
– Enter the name or the parameter number into the input field for the trigger parameter.
Additional specific setting options are shown in accordance with the data type of the
selected trigger variables. If a trigger variable of the FLOAT data type was selected, for
example, a drop-down menu, a diagram and an entry field for a threshold value appear.
The following settings can be selected in the drop-down list for the "result":
2. Select the required event in the "Event" drop-down list.
Depending on the selected event, additional settings may be required (input fields to the
right of the curve diagram). Make these specific event settings.
3. In order to record a time period before the trigger event, enter a value greater than 0 in
the input field for the pre-trigger.
4. Enter the recording time under "Recording duration". The maximum possible recording
duration is displayed to the right.
Should you wish to set the maximum recording time, activate the option "Use max.
recording duration".
5. Enter a recording cycle under "Cycle" The possible cycle settings depend on the number
of signals.
Commissioning with Startdrive
Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1
for the trigger parameter and select a parameter.
Rising signal The recording starts if the falling value of the trigger reaches or exceeds the
configured value. After activating the trace, at least 2 cycles are required in
order to identify the signal edge.
Falling signal The recording starts if the falling value of the trigger reaches or falls below
the configured value. After activating the trace, at least 2 cycles are required
in order to identify the signal edge.
Within the toler- Recording starts as soon as the value of the trigger lies within the configured
ance band value range.
Outside the toler- Recording starts as soon as the value of the trigger lies outside the config-
ance band ured value range.
Diagnostics
5.3 Diagnostics via Startdrive
343