75
T
1
T
2
T
3
31 H
1 ⁄ 60 s
1 ⁄ 60 s
ODD
ODD
EVEN
EVEN
ODD
ODD
EVEN
EVEN
1 ⁄ 60 s
31 H
1 ⁄ 60 s
1 ⁄ 60 s
ODD
ODD
EVEN
EVEN
ODD
ODD
EVEN
EVEN
1 ⁄ 60 s
The RESET mode (3V) video out
The output mode is compatible with 2I only.
Normal-speed
(The S7-2 switch on the SG-235 board: ON)
The video signal is output at 3 V after the trigger pulse is
input. Set this mode when the 1 V (31H) output from the
trigger is too fast for the image processor to capture an
image.
The trigger pulse input polarity is set with the S5 switch on
the SG-235 board. The WEN pulse output polarity is set
with the S7-4 switch on the SG-235 board.
High-Speed
The shutter speeds compatible with this function are
1/10000 to 1/100000 sec. To set to high speed, set the S7-5
switch on the SG-235 board to ON. You can also set the
trigger pulse width (T2).
Timing chart for RESET mode (3V) video signal output
WEN pulse
(–1 V)
WEN pulse
(0 V)
Video output 2
Video output 1
2 µs to 10 ms (TTL) Trigger pulse interval:over 4 V
Video signal
V sync signal
Trigger pulse
WEN pulse
(–1 V)
WEN pulse
(0 V)
Video output 2
Video output 1
Trigger pulse
2 µs to 90 µs (TTL) Trigger pulse interval:over 4 V
V sync signal
Video signal
T1: Set with the S6 switch on the SG-235 board.
T2: Set externally (T2 < T1).
T3: Exposure duration
Timing chart for high-speed RESET mode (3V) video signal
output
