Aci Interface - Renishaw ATOM Installation Manual

System connection:

ACi interface

FPC variant
FPC input
connector
PCB
FPC
cable
Ensure that the FPC cable being used has the following specifications:
16 core
u
Conductor pitch 0.5 mm
u
Minimum exposed conductor strip length 1.5 mm
u
Maximum exposed conductor strip length 2.5 mm (to ensure isolation from the body)
u
Contact your local Renishaw representative for more information of the FPC design requirements.
Shielding
For optimum performance:
Ensure 100% shielding
u
Ground the mounting brackets, readhead and FPC cable clamp
u
Ensure continuity of all shields
u
Maximise the distance between the encoder and motor cables
u
Provide appropriate strain relief at the readhead and interface
u
u The ACi should be contained within a shielded enclosure
Mounting
ACi can be mounted to customers' system using 2 off M3 screws or 2 off 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 24 for pin-out information.
Connection
For information on inserting and removing the FPC cable to the ACi and readhead see page 9.
Approved ESD precautions must be followed at
all times during readhead electrical connection.
The FPC cable must be connected to the readhead before fitting the lid.
The lid is secured by the readhead mounting screws.
ATOM
rotary installation guide
FPC input
connector
JST output
connector
Pin 1
Pin 1
2 mounting holes
M3 through
Cable variant
Cable
interboard
connector
PCB
*
Ensure suitable clamping to retain interboard connector on ACi.
Shielding
For optimum performance:
u Ensure 100% shielding
Ground the mounting brackets
u
Use a metal clamp around the cable ferrule to ground the readhead cable
u
Ensure continuity of all shields
u
Maximise the distance between the encoder and motor cables
u
Provide appropriate strain relief at the readhead and interface
u
The ACi should be contained within a shielded enclosure
u
u Ensure suitable clamping to retain interboard connector to the mating connector
Mounting
ACi can be mounted to customers' system using 2 off M3 screws or 2 off 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 25 for pin-out information.
Approved ESD precautions must be followed at
all times during readhead electrical connection.
Ferrule
JST output
connector
2 mounting holes
M3 through
Cable
interboard
*
connector
10