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C2: S-Curve Characteristics

Use S-curve characteristics to smooth acceleration and deceleration and to minimize abrupt shock to the load.

Set S-curve characteristic time during acceleration/deceleration at start and acceleration/deceleration at stop.

The following figure explains how S-curves are applied.

Figure 1. S-Curve Timing Diagram - Forward/Reverse Operation
Note:
  • If STPo [Motor Step-Out Detected] occurs when starting a PM motor, try increasing the value set to C2-01.

  • Setting the S-curve will increase the acceleration and deceleration times.