Gocator Line Profile Sensors: User Manual
Gocator Web Interface • 93
Parameter Trigger Source Description
to Fixed Length, Variable Length, or Rotational (see on
page 113).
See See Digital Input on page 503 for more information on
connecting external input to Gocator sensors.
Behavior Encoder Specifies how the Gocator sensor is triggered when the target
moves. Can be Track Backward, Ignore Backward, or Bi-
Directional. See Triggers on page 88 for more information on
these behaviors.
Spacing Encoder Specifies the distance between triggers (mm). Internally the
Gocator sensor rounds the spacing to a multiple of the encoder
resolution.
Units External Input, Software Specifies whether the trigger delay, output delay, and output
scheduled command operate in the time or the encoder
domain. The unit is implicitly set to microseconds with Time
trigger source, and millimeters with Encoder trigger source.
Trigger Delay External Input
Controls the amount of time or the distance the sensor waits
before producing a frame after the external input is activated.
This is used to compensate for the positional difference
between the source of the external input trigger (e.g.,
photocells) and the sensor.
Trigger delay is only supported in single exposure mode; for
details, see Exposure on page 98.
Depending on the surface generation settings, some trigger options may not be available.
To configure the trigger source:
1. Go to the Scan page.
2. Expand the Trigger panel by clicking on the panel header.
3. Select the trigger source from the drop-down.
4. Configure the settings.
See the trigger parameters above for more information.
5. Save the job in the Toolbar by clicking the Save button .
Maximum Input Trigger Rate
The maximum external input trigger rate in a system including Master 400 or higher is 20 kHz.
When using a standalone sensor or a sensor connected to a Master 100, the maximum trigger rate is 32
kHz. This rate is limited by the fall time of the signal, which depends on the Vin and duty cycles. To
achieve the maximum trigger rate, the Vin and duty cycles must be adjusted as follows:
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