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System connection
(continued)
ACi interface
FPC variant
FPC input
connector
FPC cable
PCB
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
Mounting
The ACi can be mounted to customers' system using two M3 screws or two M2.5 screws for through mounting.
Output
The output connector is a 10-way JST, GH crimp connector with 1.25 mm pitch.
It is suitable for cable size 26 to 30 AWG. See
Connection
For information on inserting and removing the FPC cable to the ACi and readhead, 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
FPC input
connector
Pin 1
Pin 1
page 37
for pin-out information.
page
Cable variant
JST output
connector
Cable
interboard
connector
2 mounting holes
M3 through
* Ensure suitable clamping to retain interboard connector on ACi.
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
Mounting
The ACi can be mounted to customers' system using two M3 screws or two M2.5 screws for through mounting.
Output
The output connector is a 10-way JST, GH crimp connector with 1.25 mm pitch.
It is suitable for cable size 26 to 30 AWG. See
18.
Approved ESD precautions must be followed
at all times during readhead and interface
electrical connection.
Ferrule
PCB
Cable interboard connector *
page 38
for pin-out information.
JST output
connector
2 mounting holes
M3 through
19
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