Limiting DC Motor In-Rush

[Angry Robot]

I have two 24VDC motors that draw a little under 10A nominal, but the in-rush is over 20A. They are driven with a 20A power supply but on initial start up I can watch the status light on the power supply flicker. A PLC is driving an enable relay for the motors.

Any ideas on how to soft start a set up like this? I've thought about using a capacitor, but I wonder if there are better solutions?

 

[parky]

RS Components do soft starters for DC Motors

 

[GaryS]

Here is exactly what you need
24VDC Drives
https://www.dartcontrols.com/products/65e-low-voltage-drive-20a/
I think they would be your best option

 

[BryanG]

https://www.ametherm.com/blog/inrush-current/dc-motor-inrush-current

 

[Angry Robot]

https://www.ametherm.com/blog/inrush-current/dc-motor-inrush-current

This looks promising since budget is an issue.

 

[Gene Bond]

https://www.ametherm.com/blog/inrush-current/dc-motor-inrush-current

I just wonder how long this needs to be off before it cools down enough to be effective again?

 

[Gene Bond]

Here is exactly what you need
24VDC Drives
https://www.dartcontrols.com/products/65e-low-voltage-drive-20a/
I think they would be your best option

That was MY product 40 years ago

We also had a reversing model/series, but it seems they might have dropped it.

If you want reversing, this may be a better product: https://acim.nidec.com/drives/kbelectronics/products/variable-speed-dc-drives/battery-dc-to-dc