Salvaging an older controller

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lbarber70

Member
Location
Seattle
I got a 2hp cuttler hammer controller for free. I'm trying to get it to work so that I can setup a small shop in the garage. So far I have been unable to find a manual or guide on this unit. There's very little info online. I found a controller that closely matches but from a different vendor, not cuttler hammer. I'm not sure if it is the same. https://www.clrwtr.com/Catalog/Manufacturers/Lenze-Americas/Drives/Decentralized/MC-Series I'm looking for some guidance on how to track down a manual.

Cutler-Hammer.JPG
 

Jraef

Moderator, OTD
Staff member
Location
San Francisco Bay Area, CA, USA
Occupation
Electrical Engineer
I got a 2hp cuttler hammer controller for free. I'm trying to get it to work so that I can setup a small shop in the garage. So far I have been unable to find a manual or guide on this unit. There's very little info online. I found a controller that closely matches but from a different vendor, not cuttler hammer. I'm not sure if it is the same. https://www.clrwtr.com/Catalog/Manufacturers/Lenze-Americas/Drives/Decentralized/MC-Series I'm looking for some guidance on how to track down a manual.

View attachment 20267
It's an MC Series AC Tech brand-labeled drive. Cutler Hammer (Eaton) has never made their own drives, they have bounced around among a few other competitors with brand-label agreements. At the moment they are branding the Vacon / Danfoss drives, but at one time Cutler Hammer in Canada brand labeled the AC Tech drive as well because they were... well, cheaper. AC Tech was later bought out by a German company names Lenze a while ago, and Lenze still sells the old MC series, but they are now 3 generations old and "scheduled to be discontinued".
http://www.lenze.com/en-us/products/inverters/inverters-decentralized/mc-series/
csm_mc-group-3_b_1440_rgb_e644106a5d.jpg

You can download the LATEST manuals for them, but I've found they are not all that good at supporting older pre-Lenze versions.

The thing is, a drive with that label on it is likely well over 10 years old and an issue with drives that have been sitting un-powered for that long is that just the act of applying power to them can damage them irreversibly unless you perform a "capacitor re-forming procedure" on them first. That then takes some specialized equipment (or talent) that is not typical for the average Joe, so your "free" drive may be either useless, or more expensive than you think.
 

lbarber70

Member
Location
Seattle
Thank you Jraef for the explanation. It makes sense. I thought that I have found a controller that I can utilize.

Thank you ActionDave. I'm sure that I'll learn a lot from you wonderful people.
 

kwired

Electron manager
Location
NE Nebraska
Hope starting up whatever you are doing doesn't all depend on this "free" drive.

You can get a 2 hp drive from Automation direct for around $300. Even less if you already have enclosure to mount an "open style" unit into.
 
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