Operation Modes - IAI CV-M40 Operating Manual

6.3. Operation Modes

This camera can operate in 4 primary modes. 1 non-triggered, 3 external asynchronous trigger
modes. The triggered shutter can be HD synchronous or with H reset.
To avoid <1H time jitter in H non-reset mode, it is recommended to synchronize the trigger to
HD as shown I fig. 8.
1. Normal continuous Mode.
2. Edge Pre-select Mode.
3. Pulse Width Control Mode.
4. EPS with delayed read out
For the 3 trigger modes, the shutter exposure can operate in 2 modes.
H reset:
The trigger leading edge will immediately reset the internal H phase and start the exposure.
This mode need no external HD input.
The delay from trigger falling edge to exposure start is 1.5 µsecond.
H non-reset:
The exposure will start synchronous with the first HD after the trigger leading edge.
This mode need external HD input.
To avoid 1 H jitter it is recommended to synchronize the external trigger to the external HD
signal as shown in fig. 8. The trigger falling and rising edge should be within the 4 + 1.5 µs.
Minimum trigger pulse width.
Edge Pre-Select mode H reset:
Edge Pre-Select mode H non-reset:
Pulse Width Control:
EPS with delayed read out:
Maximum trigger pulse width.
There is no fixed value for the maximum trigger pulse width. In pulse width control and frame
delay readout it can be up to about 2 second. Then the dark signal noise will be visible. It is
recommended to keep the trigger pulse short.
Please refer to chapter "7.2. Jumper settings" for details in mode settings.
CV-M40
Pre-selected exposure and long time exposure.
Pre-selected exposure.
Pulse width controlled exposure.
Pre-selected exposure with delayed read out
>2µs
>1H
>2H
>3H + shutter time
Fig. 8. Trigger HD relation
- 8 -