THORLABS KBD101 User Manual page 58

Chapter 6
parameter. This means that the total number of pulses output will be Trigger Cycle
Counts x (Forward Trigger Count + Reverse Trigger Count)..
PosIntervalFwd
15 mm
12 mm
StartPosRev
10 mm
StartPosFwd
Trig Voltage
5V
0V
Example for a move from 0 to 20 mm and back.
In forward direction: The first trigger pulse occurs at 10 mm (StartPosFwd), the next
trigger pulse occurs after another 5 mm (PosIntervalFwd), the stage then moves to 20
mm.
In reverse direction: The next trigger occurs when the stage gets to 12 mm.
Note that position triggering can only be used on one TRIG port at a time, as there is
only one set of position trigger parameters.
Trigger Polarity
The polarity of the trigger pulse is specified in the Trigger 1 Polarity and Trigger 2
Polarity parameters as follows:
Trigger High - The active state of the trigger port is logic HIGH 5V (trigger input
and output on a rising edge).
Trigger Low - The active state of the trigger port is logic LOW 0V (trigger input and
output on a falling edge).
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Pos2 Fwd
Pos1 Fwd
Fig. 6.10 Position Steps Triggering
Pos1 Rev
HA0364T Rev Ck Jan 2017
Time
Time