LV_John
Member
Well, unfortunately, Reliance has discontinued the MD-60 line of drives. The model 6MDDN-4P0101, for example, was a nice compact 3 3/8 inches wide, 6 inches tall, and 5 1/2 inches in depth. Our biggest problem here at the plant is that width. It seems that most drives now are in the neighborhood of 6 inches wide. The depth and the height are not really critical. This is a 1.5 kw/2 HP AC drive, 480 input. Do any of you out there know of a good replacement with the width close to 3 3/8 inches?
The other problem we ran into with some drives (like the Baldor guaranteed replacement) was that they had no 'drive ready' contact, only a programmable relay that would finally come on if there 'was' a fault. How in the hell could they forget that an E-Stop loop might just need a drive ready relay? The other thing was it did not like to start into a moving load. (flying start). I guess the last question would be, do any of you have any of the aforementioned MD-60 drives for sale?
Any information would be greatly appreciated.
John
The other problem we ran into with some drives (like the Baldor guaranteed replacement) was that they had no 'drive ready' contact, only a programmable relay that would finally come on if there 'was' a fault. How in the hell could they forget that an E-Stop loop might just need a drive ready relay? The other thing was it did not like to start into a moving load. (flying start). I guess the last question would be, do any of you have any of the aforementioned MD-60 drives for sale?
Any information would be greatly appreciated.
John
