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System connection
(continued)
ACi interface (continued)
PCB mounting: connecting an FPC variant ATOM readhead
Pin 1
Pin 1
Customer PCB
FPC input
connector
Input
FPC cable
Ensure that the FPC cable being used has the following specifications:
16 core
Conductor pitch 0.5 mm
Minimum exposed conductor strip length 1.5 mm
Maximum exposed conductor strip length 2.5 mm (to ensure isolation from the body)
Contact your local Renishaw representative for more information regarding FPC design requirements.
Shielding
For optimum performance:
Ensure 100% shielding
Ground the mounting brackets, readhead and FPC cable clamp
Ensure continuity of all shields
Maximise the distance between the encoder and motor cables
Provide appropriate strain relief at the readhead and interface
The ACi should be contained within a shielded enclosure
Connection
For information on inserting and removing the FPC cable to the mating socket, see
Approved ESD precautions must be followed
at all times during readhead and interface
electrical connection.
NOTE: The FPC cable must be connected to the readhead before fitting the lid.
The lid is secured by the readhead mounting screws.
ATOM linear installation guide
PCB mounting: connecting a cable variant ATOM readhead
ACi interface
2 mounting holes
M3 through
Output
* Ensure suitable clamping to retain interboard connector on PCB.
Shielding
For optimum performance:
Ensure 100% shielding
Ground the mounting brackets
Use a metal clamp around the cable ferrule to ground the readhead cable
Ensure continuity of all shields
Maximise the distance between the encoder and motor cables
Provide appropriate strain relief at the readhead and interface
The ACi should be contained within a shielded enclosure
Ensure suitable clamping to retain interboard connector to the mating connector
page
18.
Customer PCB
Ferrule
Cable interboard connector *
Approved ESD precautions must be followed
at all times during readhead and interface
electrical connection.
ACi interface
2 mounting holes
M3 through
Input
Output
20
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