Mode Setting
For setting the shutter speed using the DIP switches
HD/VD input
◆ Continuous HD input/Single VD input
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| Mode transition state |
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| External input |
| External trigger | ||||||||||||||
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| External trigger shutter operation |
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| Normal operation*3 |
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| inhibition area |
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| (50 ms) |
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| shutter operation | ||||||||||||||||||||||||
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Trigger*1 |
| 1 |
| 100 ∝s to 250 ms |
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| 2 |
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| Trigger pulse width*3 |
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| Exposure time (Te)*2 |
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| Exposure time | ||||||||||||||||||||
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External HD*1 |
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| (Te)*2 | |||||||
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External VD*1 |
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(Single VD) |
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| min.10 ms | |||||
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Video out |
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| T: T=10 ms to 75 ms*4 |
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1 |
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WEN |
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| 250 H (EIA) |
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| 250 H (EIA) | |||||||||||
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| 293 H (CCIR) |
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| 293 H (CCIR) |
*1 | This is a signal input from outside. Make sure to | *4 Input the external VD within the period of 10 ms to |
| input both HD and VD signals in this case. Input | 75 ms after the trigger rising edge (1 and 2 in |
| the signal so that the VD phase aligns with the HD | the figure). There is no guarantee of operation |
| falling edge. | when any other input is selected. If an invalid |
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| signal is input, the input is changed to a valid |
*2 | The exposure time (Te) is determined by the | signal, and after several V signals, normal |
| setting of the DIP switches. | operation will resume. |
| For details, see Page 9. |
|
Note
*3 The normal operation state is chosen when the trigger pulse width is 1/3 s or more. (By entering a continuous VD in this section, an image is output.) The trigger falling edge restores the external trigger shutter operation. In this case, the area between the falling edge of a trigger pulse and the subsequent 50 ms period is an external trigger input inhibition area. There is no guarantee of operation for any triggers input in this period.
Make sure that the trigger signal and the VD signal make up a pair.
An image is not output correctly when the next trigger is input before the image for the previous trigger is output.
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