That drive is apparently discontinued. It is available though for $69 plus $27 for heat sink from:
http://surpluscenter.com/item.asp?UI...tname=electric
CR.
That drive is apparently discontinued. It is available though for $69 plus $27 for heat sink from:
http://surpluscenter.com/item.asp?UI...tname=electric
CR.
Just had to post something here after my reply to the whiner. In the past 2 years, I have bought a used Quadra lift machine, totally dis assembled it, lapped the ways, re-ground the gib strips, put it back togather and earned enough with it to buy a new Patriot. After selling my Quadra lift and buying the Patriot I am still money ahead. I did the DC drive conversion, but am now looking at the VFD drives, which are supposed to offer better broad range power. CNC is also on my plate.
Update- they are out of business- probably a victim of the slowdown in the fitness business. Also, be careful on the Minarik controller- it has settings for 90 and 180 volts. These motors are rated at 130 volts, so if you use the 180 volt setting and put too much torque compensation in, it will over volt the motor with resulting smoke.
I have a Quadra Lift that I bought used. I have used the heck out of it and made some money as well. I am thinking of going with that 3995.00 special with CNC and DRO. In the meantime, here are acouple of pictures of my VFD drive and tachometer.. I found a Goldstar brand VFD and 2 chinese 3 phase motors. The motors were identical in size to my original 110 volt motors, except they have no capacitors. The Goldstar has a control panel on the front, plus a remote panel that has a ribbon cable plug in. Its a 220 input with 380 three phase output. The motors are 1 hp and 1750 rpm. Using some pulleys I had laying around, I am now getting 0-1400 on mill and 0-1300 on lathe. The mill could use a bit more rpm, but the lathe is pretty much all I need. Torque is good all the way down to about 100 rpm, then it drops off some. I also mounted a tachometer that I got from JT. Its a prototype with a button to select either lathe or mill. It uses optical sensors and is accurate to about 3-4 rpm and holds real steady.
I figured out the VFD drive, but have been unable to find an online manual- its a Goldstar Model GS100L-0015- it may be obsolete, as Goldstar is now LS industries. If anyone has any info I would appreciate it- It has some programmable functions I have not been able to decipher and also I think it has dynamic braking.
Just an update on this system. I spoke to JT about getting one and he told me that the motor sources have dried up. Previously there was a lot of low cost motors available from the treadmill industry. However, the economy has cut into the entire home/health business and several of the motor manufacturers have gone out of business. JT is now working on a 3 phase VFD conversion.
Are you using a thermostat to turn the fans off and on or are you using a time delay after the machine is shut off.
I just have a toggle switch that controls the AC power to the control board- the fans are wired to this switch so whenever you turn on power-they run. On the DC side, the power goes through the original push button switches so you can reverse or shut the motor down and leave the fans running. The fans are fairly quiet and a couple of times I have forgotten to turn off the AC power.
Those little muffin fans seem to run for years in a computer. They should last forever shutting them down when not in use.
I have one of the tach units from JT for my machine. I am still liking the VFD idea, but sort of hesitating because my DC is working fine and I still can't justify making the change for any reason besides the need to fiddle with it. I found some 3 phase motors at Surplus Center for 89.00 each- they are 1150 rpm. I can get a new VFD from TECO for 120.00, so the whole cost for all new stuff is about 300.00. My plan is to use the original pulleys from the machine with one ratio set for speeds from 1150- 3000 and the other for low speeds from 0-1150. The motor pulleys and machine pulleys have the proper ratios so that it would just be a matter of rolling the belts from one spot to another with no adjustment mechanism required.
Sharp,
Have you gone to the AC VFD drives yet? If so, what are you doing with the DC system? PM me n14ky(at)aol(dot)com if you want to sell them.
David