Aci Interface - Renishaw ATOM Installation Manual

ACi interface

FPC variant
Pin 1
A
Detail A
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.
20 ATOM rotary encoder system
FPC input connector
JST output connector
Pin 1
2 mounting holes M3 through
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 page 44 for pin-out information.
Connection
For information on inserting and removing the FPC cable to the ACi and readhead, see pages
18 and 19.
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.