Switched Output - GARDASOFT VTR1 User Manual

7.1.2 Pulsed Output
The output is off by default. When the VTR1 is triggered it will wait for a delay and then pulse
the output.
Retrigger delay is the minimum allowed time from one trigger to the next. Any triggers that
happen too soon after the previous trigger are ignored. The retrigger delay is set in multiples of
100us.
The delay, pulse width, retrigger delay and pulse intensity are all configurable.
7.2

Switched Output

Switched mode uses the trigger input to switch the output on or off using the timing of the trigger
signal. The output brightness can be varied from 0% to 100%.
The VTR1 applies the same duty cycle and pulse width limits as for pulse mode, to prevent the
light being damaged.
7.3 Internal Trigger Timer
An internal timer is available for continuous triggering in pulse mode. The period of this timer is
configurable.
Note that the internal timer is mostly used when synchronising a camera using the trigger output.
It is generally not possible to run the light strobe from this timer while free running the camera.
They will not stay synchronised and the images will have very variable intensity.
When this timer is turned on, the light strobe pulse and the trigger output are both triggered by
this timer. External triggers still work.
When troubleshooting during development, it is sometimes useful to set this timer to give regular
light pulses.
7.4 Trigger Input Option
An optional trigger input signal is available.
The trigger input is used as follows:
Mode Trigger Input
Switched Trigger input = off
Trigger input = on
11
Output
Output is off if P flag = 1
Output is on if P flag = 0
Output is on if P flag = 1
Output is off if P flag = 0