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Can DC motors be safely started without ramping up? — Parallax Forums

Can DC motors be safely started without ramping up?

Kris CardoenKris Cardoen Posts: 46
edited 2012-04-02 14:52 in Robotics
Hi,

Can I start my DW motors at full speed? Or is it necessary to ramp up slowly?

Any help or advice are much appreciated.

Regards,
Kris

Comments

  • ercoerco Posts: 20,256
    edited 2012-04-02 11:09
    DC motors? (DW?) Depends on the application. Small motors with low momentum and low current demands can often be switched on without ramping, if the application is OK with it. Large motors have large starting momentum and large current demands, and a soft start with ramping has many advantages, lower startup power and mechanical shock included.
  • SRLMSRLM Posts: 5,045
    edited 2012-04-02 14:52
    Very large motors (eg, elevator motors) are required by law to minimize current spikes, and so must be ramped...
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