3 setpoint processing, 4 suppression of ranges, Setpoint processing – Festo Контроллеры двигателя CMMS-ST User Manual

Page 51: Suppression of ranges

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3. Product description

Festo.P.BE-CMMS-ST-G2-HW-EN 1008NH

51

3.5.3 Setpoint processing

Through setpoint selection, an additional setpoint can be plugged in via the correction
value with the control interface RS-485.
Depending on the prefix, the speed setpoint is disabled via the signal of the
corresponding limit switch input. The limit switch inputs also affect the ramp generator
for the speed setpoint.
The speed setpoint is converted by the controller into the corresponding frequency to
actuate the stepper motors.
The speed setpoint (without the correction value) is reached via a setpoint ramp. Four
acceleration ramps can be configured in the range of one controller cycle of up to approx.
10 s. The setpoint ramp can be deactivated.

3.5.4 Suppression of ranges

When speeds close to the mechanical natural resonance are reached, there is a speed
jump so that the resonance is skipped. The mechanical natural resonance and the
bandwidth (hysteresis) can be set. Up to three speed ranges can be hidden.

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