
14.7 I/O Wiring
14.7
I/O Wiring
The Photonfocus cameras include electrically isolated inputs and outputs. Take great care when
wiring trigger and strobe signals to the camera, specially over big distances (a few meters) and
in noisy environments. Improper wiring can introduce ground loops which lead to malfunction
of triggers and strobes.
There are two roads to avoid ground loops:
•
Separating I/O ground and power supply (ISO_GND) from camera power (CAMERA_GND,
CAMERA_PWR)
•
Using a common power supply for camera and I/O signals with star-wiring
14.7.1
Separate Grounds
To separate the signal and ground connections of the camera (CAM_GND, CAM_PWR, data
connections) from the I/O connections (ISO_GND, ISO_IN, ISO_OUT) is one way to avoid ground
loops. Fig. 14.11 shows a schematic of this setup. In this setup the power supplies for the
camera and for ISO power must be separate devices.
Isolator
ISO_IN
ISO_GND
CAMERA_GND
ISO_GND
Separate ground, no ground loop
Ground plane
voltage difference
Figure 14.11: I/O wiring using separate ground
.
MAN085 04/2021 V1.3
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Содержание Luxima DR4-D1280-L01-FB
Страница 8: ...CONTENTS 8 of 151 MAN085 04 2021 V1 3...
Страница 12: ...1 Preface 12 of 151 MAN085 04 2021 V1 3...
Страница 42: ...4 Image Acquisition 42 of 151 MAN085 04 2021 V1 3...
Страница 52: ...5 Counter Timer 52 of 151 MAN085 04 2021 V1 3...
Страница 84: ...12 Pixel Data Processing 84 of 151 MAN085 04 2021 V1 3...
Страница 94: ...12 Pixel Data Processing 94 of 151 MAN085 04 2021 V1 3...
Страница 98: ...13 Precautions 98 of 151 MAN085 04 2021 V1 3...
Страница 128: ...16 Troubleshooting 128 of 151 MAN085 04 2021 V1 3...
Страница 134: ...19 Support and Repair 134 of 151 MAN085 04 2021 V1 3...
Страница 136: ...20 References 136 of 151 MAN085 04 2021 V1 3...
Страница 140: ...A Pinouts 140 of 151 MAN085 04 2021 V1 3...
Страница 150: ...C Use Cases 150 of 151 MAN085 04 2021 V1 3...