21

XC-ST50/50CE

XC-ST30/30CE

1/3 s or more

min. 10 ms

Video out

WEN

(Single VD)

External trigger shutter operation

Mode transition state

External input

inhibition area

(50 ms)

External trigger

shutter operation

100

us to 250 ms

250H

(XC-ST50/30)

293H

(XC-ST50CE/30CE)

250H

(XC-ST50/30)

293H

(XC-ST50CE/30CE)

1

3

1

2

TIMING CHART OF EXTERNAL TRIGGER SHUTTER - MODE 1 (NON-RESET MODE)

For setting the shutter speed using DIP switch

HD/VD input

• Continuous HD input and single VD input

*

1: This is a signal input from the outside. Be sure to input both HD and VD signals. Make the phase of the VD

signal coincide with the falling edge of the HD signal.

*

2: As shown in the table on page 7, exposure time Te is determined by the setting of a DIP switch.

*

3: The normal operation state is engaged when the high period exceeds 1/3 sec. After that, the external

trigger shutter operation is engaged when the trigger pulse goes “low”. In this case, the area between the

falling edge of a trigger pulse and the subsequent 50 ms period is an external input inhibition area. During

the trigger inhibit period, an input trigger may be missed.

*

4: Be sure to input an external VD signal for 10 ms to 110 ms from the rising edge of a trigger pulse (as shown

by 1 and 2 in the figure). For the input except described above, the operation cannot be ensured. If the

external VD signal is not input under the prescribed conditions, the normal operation is engaged several V

after a change in input operation under the prescribed conditions.