CV-M9 CL
6.4.5. Pulse Width Control Trigger Mode
In this mode the accumulation time is equal the trigger pulse width. Here it is possible to have
long time exposure. The maximum recommended time is <2 seconds.
The accumulation can be LVAL synchronous or LVAL a-synchronous.
The resulting video signal will start to be read out after the trigger rising edge.
For timing details, refer to fig. 13. through fig. 20. and fig. 26.
To use this mode:
Set function:
Trigger mode to “Pulse width control”.
TR=2
Scanning
SC=0
through
3
Vertical binning
BI=0, BI=1
Accumulation LVAL synch. or a-synch.
LS=0, LS=1
Other functions and settings
Input:
Ext. trigger. Camera Link or 12 HiRose
TI=0, TI=1
Important notes on using this mode
Trigger pulse width >2 LVAL to <1 seconds.
To avoid
≤
1 LVAL jitter in synch. accum, synchronize the trigger to LVAL.
Minimum trigger interval in synch. accum.
≥
(1 FVAL + 2 LVAL).
Minimum trigger interval in a-synch. accum.
≥
( exposure time + 1 FVAL + 3 LVAL).
Fig. 26. Pulse width control. LVAL synchronized.
- 20 -
