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7 - THEORY OF OPERATION
Changing Ramp Profiles The selected ramp profile may be changed during starting by changing the Ramp Select input. When the Ramp
Select input changes during ramping, control switches to the other profile as if it were already in progress. It does
not switch to the beginning of the other profile. Refer to the following example below:
z NOTE: Once the motor has achieved an up-to-speed status (UTS), changes to the Ramp Select input have no
effect on the motor operation.
Ramp Profile 1
Ramp Profile 2
Initial Current 2
Kick Level 1
Maximum Current
2
Initial Current 1
Maximum Current 1
Kick Time 1
Ramp Time 2
Ramp Time 1
Ramp Select Changed During Start
Ramp 1 Selected Ramp 2 Selected
Kick Level 2
Kick Time 2
Ramp Time 2
Figure 34: Changing Ramps During Acceleration Example
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