Motion Coordinator Technical Reference Manual
System Setup and Diagnostics 6-7
Preliminary Concepts:
• Swap BOTH motor terminals and tacho terminals (DC motors only!) On many
digital brushless motors the direction can be reversed by a drive setting, or
• If the drive has differential inputs, reverse the voltage as it enters the
drive. (This can cause problems with some servo-drives. The V- pins of the
daughter board are internally connected inside the Motion Coordinator so
the axis voltage outputs cannot float relative to each other), or
• set a negative PP_STEP axis parameter. (This is not possible using SSI
encoders)
• If using an MC206 set a negative DAC_SCALE axis parameter.
We are now ready to apply the position servo as described below.
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