Electrical Connections - Renishaw ATOM Installation Manual

Electrical connections

Grounding and shielding
FPC readhead
FPC cable
Shield
(recommended)
For more information on FPC contact your local Renishaw representative.
Cable readhead
Shield
IMPORTANT: The shield should be connected to the machine earth (Field Ground).
NOTE: Maximum cable length between interface and customer electronics is
25 m for ACi and Ri and 50 m for Ti.
(Maximum length for Ti with 40 or 50 MHz clocked output is 25 m).
ATOM
linear installation guide
ACi/customer
electronics
5 V
Output
signals
0 V
Connector/
interface
Recommended signal termination
Digital outputs
Interface
A B Z E+
A B Z E-
Standard RS422A line receiver circuitry.
Capacitors recommended for improved noise immunity.
Customer
electronics
Remote CAL operation
5 V
CAL
Output
signals
0 V
0 V
0 V
Customer
220 pF
electronics
Cable Z = 120R 120R
0
220 pF
0 V
Remote CAL operation is possible
via the CAL pin.
For applications where no interface is used,
remote CAL operation is essential.
Analogue outputs
V V V +
0 1 2
120R
V V V -
0 1 2
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