Phoenix Contact CSS 1.5-1/3-EMC Handleiding (152 Pagina's)

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CONTACTRON Speed Starter

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10.5.7 Voltage lift

Set this parameter to lift the total output voltage. The additional lift voltage is obtained by

the product of the parameters Voltage Lift and Input Voltage.

The asynchronous motor may vibrate while running if the setting value is too large.

Decrease this parameter if the motor starts to vibrate.

10.5.8 Slip compensation

Constant slip is necessary to generate magnetic torque for an asynchronous motor.

In operation, the slip is inverted proportionally to the synchronous speed to generate the

same magnetic torque. However, as the synchronous speed decreases, the slip

increases.

In another scenario, the slip increases when the load increases.

It also affects the motor speed accuracy.

Use this parameter to set the compensation frequency and reduce the slip. To maintain

the synchronous speed when the motor runs at the rated current, set the slip

compensation when applying the load or after acceleration.

Increase the compensation value gradually.

If the actual speed is slower than the reference speed, increase the compensation value.

Otherwise, decrease the compensation value.

Can be set during operation Clear text display Parameter name Setting range Default setting

 7. vL - voltage lift Voltage lift 0.0% ... 10.0% 0.0%

Can be set during operation Clear text display Parameter name Setting range Default setting

 8. Sc - slip compensation Slip compensation 0.0% ... 10.0% 0.0%

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