SCS1
Series
Instruction
Manual
52
5.6.5.
Trigger
The
trigger mode
establishes the image acquisition instant. Two different triggers are available:
•
Continuous:
the sensor functions at maximum speed,
starting a new elaboration as soon as the previous one
is completed.
•
External:
trigger is supplied by an external device.
•
Exit:
returns to previous menu without changing
configuration.
External trigger
The
External trigger
is characterised by the following configurable parameters:
•
Filter
: minimum duration requested for the trigger
pulse.
•
Polarity
: low-high level transition or high-low level
transition.
•
Save
: saves the present configuration and exits from
the trigger menu activating the
External trigger
.
•
Exit
: returns to previous menu without changing
configuration.
•
Filter
: short pulses due to disturbances can appear and can be confused with trigger signals.
To avoid unwanted acquisitions, the user can set a minimum trigger pulse duration and so
shorter pulses will not be considered.
A number representing the minimum trigger pulse duration will appear by selecting “FILT” (in ms).
The minimum trigger duration can be varied using the + and – push-buttons. The user returns to the
previous menu by pressing SET.
•
Polarity
: the trigger signal consists in an input voltage variation. This variation can vary from a
high to a low level (fall) or from a low to a high level (rise).
+
-
+
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Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - e.mail: [email protected]
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
