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Electrical connections
Grounding and shielding - standard TONiC system
Readhead
Inner shield
Outer shield
IMPORTANT: The outer shield should be connected to the machine earth (Field Ground). The inner shield should be connected to 0 V at the receiving electronics only. Care should be taken to ensure that
the inner and outer shields are insulated from each other. If the inner and outer shields are connected together, this will cause a short between 0 V and earth, which could cause electrical noise issues.
NOTES:
•
The maximum cable length between the readhead and the interface is 10 m
•
The maximum extension cable is dependent on the cable type, the readhead cable length and the clock speed. Contact your local Renishaw representative for more information.
•
For DOP interfaces the external earthing tag on the interface must be used when mounting the interface on a DIN rail.
Original instructions
Interface
Extension cable
Customer electronics
5 V
Output signals
0 V
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