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Motor connectors
DC motor connection card termination
Each DC motor connection card presents a 7W2 connector for connection of a CMM motor to the SPA2-2, as shown below:
There are seven connections available on this connector. The table shows the connections and default polarity configurations for all pins.
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 |
NOTE: The motor and tacho polarities on this connector are software configured during the SPA2-2 installation process.
WARNING: If the SPA2-2 is being integrated on a dual axes DCC driven machine it is essential that the motor polarities on the dual axes are the same.
Additional axis interface card termination and brushless motor cards
There are seven connections available on this connector. The table below shows the connections and default polarity configurations for all pins.
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 | -ve tacho input (linked to pin 2) |
5 | ground reference |
Shell | Screen |
WARNING: Pins with the function reserved for future expansion must not be connected to any other system component.
If the SPA2-2 is being integrated on a dual axes DCC driven machine it is essential that the motor polarities on the dual axes are the same.
NOTE: The motor and tacho polarities on this connector are software configured during the SPA2-2 installation process.