Compliance, safety, and intended use
19
Mako U Technical Manual V1.1.3
Setups to avoid ground loops
Graphics legend
Gray line
Cable connection
Blue line
PE ground
Green square
Isolator avoiding ground loops
No ground loop: GPIOs and barrier isolator
In
Figure 3
, a
barrier isolator
between camera GPIO and the environmental setup
avoids ground loops.
No ground loop: Opto-isolated I/Os
In
Figure 4
, the I/O’s opto-isolator inside the camera avoids ground loops.
Depending on your application, instead of using the non-isolated GPIOs, you can
use the opto-isolated I/Os to control the camera.
Figure 3: No ground loop when using a barrier isolator
Figure 4: No ground loop when using opto-isolated I/Os (instead of GPIOs)
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...
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PLC
PC
Power cable
USB cable
PE 1
PE 1
GPIO cable
I/O cables
Camera
Machinery
PELV powered
PELV powered
Barrier isolator
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...
...
PLC
PC
Power cable
USB cable
PE 1
PE 1
I/O cable
I/O cables
Camera
Machinery
PELV powered
PELV powered
Opto-isolator
(Part of the camera I/O connector)
