Omron FQ2 Series, User Manual

Page: 69 / 516

Adjusting the Timing of Taking Images
FQ2 User’s Manual
67
3
Taking
Image
s
Adjusting External Lighting Timing
When you use a trigger delay, you must adjust the timing to turn ON external lighting so that it matches the
trigger delay timing.
Using a Strobe Trigger Signal to Control External Lighting
If a Sensor Data Unit is connected, you can change the output time of the strobe trigger signal (STGOUT) to
adjust the timing of the external lighting.
Changing the Output Timing and Output Time of the STGOUT Signal: p. 270
[Image]
−
[Camera setup]
−
[
]
−
[Lightning control]
Preventing Mutual Interference of Multiple Sensors
When the same trigger signal is input to multiple Sensors, the lighting from one Sensor may affect the
measurements of the other Sensors. This is called mutual interference. This kind of interference can be
prevented offsetting the image input timing of each Sensor from when the trigger signal is received.
Example:
A trigger (i.e., the TRIG signal) is input to Sensor 0 and Sensor 1 at the same time.
The delay time for preventing mutual interference must be longer than the shutter time.
When the lighting built into the Sensor is used, the shutter time is 4 ms max. Therefore make the delay at least
4 ms.
Sensor 0 immediately begins image input when the trigger is input.
Sensor 1 begins image input after the specified time has passed.
1
Change to the setup for to Sensor 1.
p. 58
2
Press [Image] – [Trigger setup] – [Trigger delay].
3
Set the trigger input delay time for Sensor 1.
p. 66
Sensor 0
Sensor 1
Trigger Sensor
Timing of taking the image
Timing of taking the image
Sensor 0
N o trigger delay
Sensor 1
trigger delay
Sensor 1
TRIG signal
Important