I just bought a MD25HV driver for a high power 36V pancake motor . It has a card inside saying that I should not sue this with a DC supply and that this may damage the driver. Can anyone shed any light on this? I have never seen this advice and was planning to use this driver for a automatic desk control system which uses a high quality Mean Well DC Supply. Thanks for any advice !
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Hi @sjdevlin and welcome to our forum.
Did you buy this driver from RobotShop or somewhere else?
Can you send us a photo of this card with a note regarding DC supply?
Maybe they advise that you do not use switching DC power supply adapter but only to use batteries.
Thank you for replying. My friend bought the driver from Robot Shop. I am away from the workshop now, but will send you a picture of the card that came with the driver. Have you any idea why I can’t use a switched mode power supply? Unfortunately this restriction was not mentioned on the site. The supply I am using is high quality 36V 16A from Mean Well.
I will send a photo tomorrow.
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Hi @sjdevlin ,
Thank you for your reply.
I think it could be because of absorbing the regenerative energy from the motor during deceleration.
If you use battery, they will be charged during deceleration. But it if you use switching power supply, it could cause some damage.
This is my guess, but I would recommend that you double check with Cytron support.
So the note says that if you use ONLY power supply it MAY damage the driver board. I am pretty sure it is because of regenerative current when motor is slowing down. You can check with Cytron support.
They may advise you to use shunt regulator.
For example this one:
Please read description of the product (shunt regulator) where it is explained how it can save the power supply and driver board from damages.