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If indicated by the user's risk assessment, a 'manual reset' button (refer to EN 954-1:1996 para. 5.4)
should be included in the emergency stop system. A reset switch is required when there is limited visibility
of the danger zone from the control position. The reset switch must be positioned outside the danger
zone and in a safe position from which it may be determined that no person is within the danger zone
before resetting the safety system.
3.4 Motor connectors
3.4.1
DC motor connection card termination
Each DC motor connection card presents a 7W2 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
-ve motor connection (default)
1
+ve tacho input (default)
2
-ve tacho input (default)
3
ground reference
4
-ve tacho input (linked to pin 2)
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: 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.
Rear panel description
Viewed on face of plug,
or rear of socket
19
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