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20
Rear panel description
3.4.2
Additional axis interface card termination
The additional axis interface card presents 1 off 9W4 connector for connection of a CMM motor to the
SPA 2 , as shown below:
There are seven connections available on this connector. Please refer to the table below:
Connector pin
Function
A1
+ve motor connection (default)
A2
Reserved for future expansion
A3
-ve motor connection (default)
A4
Reserved for future expansion
1
+ve tacho input (default)
2
-ve tacho input (default)
3
ground reference
4
ground reference
5
ground reference
Shell
Screen
The table shows the default polarity configurations for all pins
NOTE: The motor and tacho polarities on this connector are software configured during the SPA 2
installation process. Please refer to the Renicis user's guide (Renishaw part number H-1000-5058) for
details.
!
WARNING: Pins with the function reserved for future expansion must not be connected to any
other system component
WARNING: If the SPA 2 is being integrated on a dual axes DCC driven machine it is essential that
!
the motor polarities on the dual axes are the same.
Viewed on face of plug,
or rear of socket
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