Estun Servo Motor – Several parameter settings for servo motor drives

1. Position proportional gain

Set the proportional gain of the position ring adjuster; The higher the set value, the higher the gain, the greater the stiffness, and the smaller the position lag under the same frequency command pulse. However, too large a value may cause oscillation or overshoot; The parameter values are determined by the specific servo system model and the load situation.

2. Position feedforward gain

Set the feedforward gain of the position ring; When the set value is larger, it means that the position lag is smaller under any frequency of command pulses; The feedforward gain of the position loop is large, and the high-speed response characteristics of the control system are improved, but the position of the system is unstable and easy to oscillate. When a high response characteristic is not required, this parameter is usually set to 0 to indicate the range: 0-100%.

3. Proportional gain of speed

set the proportional gain of the speed regulator; The higher the setting value, the higher the gain and the greater the stiffness. The parameter values are determined according to the specific servo drive system model and load value. In general, the larger the load inertia, the greater the set value; Under the condition that the system does not oscillate, try to set a large value.

4. Velocity integration time constant

set the integration time constant of the speed regulator; The smaller the setting value, the faster the integration will be. The parameter values are determined according to the specific servo drive system model and load situation. In general, the larger the load inertia, the greater the set value; Under the condition that the system does not oscillate, try to set a small value.

5. Velocity feedback filter factor

Set the characteristics of the low-pass filter for speed feedback; The higher the value, the lower the cut-off frequency and the less noise generated by the motor. If the load inertia is large, the set value can be reduced appropriately. If the value is too large, the response will be slower, which may cause oscillations; The lower the value, the higher the cut-off frequency and the faster the velocity feedback response. If a high speed response is required, the setpoint can be reduced appropriately.

6. Maximum output torque setting

Set the internal torque limit value of the servo motor; The set value is a percentage of the rated torque; At all times, this restriction effectively locates the completion range; Set the pulse range of positioning completion under the position control mode.

This parameter provides the basis for the driver to judge whether the positioning is completed under the position control mode, when the number of remaining pulses in the position deviation counter is less than or equal to the set value of this parameter, the driver thinks that the positioning is completed, and the switch signal in place is ON, otherwise it is OFF; In the position control mode, the output position positioning completion signal, acceleration and deceleration time constant.

The set value represents the acceleration time of the motor from 0 to 2000 r/min or the deceleration time from 2000 to 0 r/min; The acceleration and deceleration characteristics are linear in the range of arrival speeds; set the speed of arrival; In the non-position control mode, if the motor speed exceeds this set value, the speed arrival switch signal is ON, otherwise it is OFF; In the position control mode, this parameter is not used; Regardless of the direction of rotation.

Estun Servo Motor – Several parameter settings for servo motor drives

Estun Servo Motor – Several parameter settings for servo motor drives

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