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14 Hardware Interface
14.7.2
Common Grounds with Star Wiring
Ground loops can be avoided using "star wiring", i.e. the wiring of power and ground
connections originate from one "star point" which is typically a power supply. Fig. 14.12 shows
a schematic of the star-wiring concept.
Fig. 14.13 shows a schematic of the star-wiring concept applied to a Photonfocus GigE
camera.The power supply and ground connections for the camera and for the I/O are
connected to the same power supply which acts as the "Star Point".
GND PWR
-
Device 1
+
-
Device n
+
-
Device 2
+
-
Device 4
+
-
Device 3
+
Figure 14.12: Star-wiring principle
Isolator
ISO_IN
ISO_GND
CAMERA_GND
Star wiring, no ground loop
Star point
Figure 14.13: I/O wiring using star-wiring
.
114 of 151
MAN085 04/2021 V1.3
Summary of Contents for Luxima DR4-D1280-L01-FB
Page 8: ...CONTENTS 8 of 151 MAN085 04 2021 V1 3...
Page 12: ...1 Preface 12 of 151 MAN085 04 2021 V1 3...
Page 42: ...4 Image Acquisition 42 of 151 MAN085 04 2021 V1 3...
Page 52: ...5 Counter Timer 52 of 151 MAN085 04 2021 V1 3...
Page 84: ...12 Pixel Data Processing 84 of 151 MAN085 04 2021 V1 3...
Page 94: ...12 Pixel Data Processing 94 of 151 MAN085 04 2021 V1 3...
Page 98: ...13 Precautions 98 of 151 MAN085 04 2021 V1 3...
Page 128: ...16 Troubleshooting 128 of 151 MAN085 04 2021 V1 3...
Page 134: ...19 Support and Repair 134 of 151 MAN085 04 2021 V1 3...
Page 136: ...20 References 136 of 151 MAN085 04 2021 V1 3...
Page 140: ...A Pinouts 140 of 151 MAN085 04 2021 V1 3...