Baldor H2 Drive problem

[deetz]

Anyone ever dealt with a Baldor H2 drive that keeps shutting off for a millisecond and resets the drive, which in turn faults out the machine that it's on. I made sure all the connections are tight and the temp on the drive is only around 26 C.. It can just sit there idle and it will do it. I tried getting a hold of Baldor to no avail. My next step is actually just replacing it with a new one.

 

[jraef]

IIRC, they had issues with that drive from day one and the rumor is, that's what took Baldor down as a drives mfr. (they are now owned by ABB, so the old Baldor drives are now all obsolete). The problem apparently was, the power for their internal electronics came off of the AC line side with a separate SMPS, as opposed to tapping off of the DC bus to a DC/DC converter like most other drives. That means they are more susceptible to AC line transients and notching causing control power losses or damage. This came to me second hand from a friend who was an integrator for them at one time, maybe 18-20 years ago now, when explaining to me why he had to use a small UPS feeding just the power supply input of the drives.


"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington

 

[deetz]

Thanks for the info. It finally just shut off and wouldn't come back on. I just installed a new Frenic Mega. Seems to be working good. Are you at all familiar with the Fuji Frenic line? Easy to work with, at least for me, except for support, but rarely do I have any trouble.