New Build - Tree VMC 1000

The Dynapath 20 isnt a half bad control,It has a TON of high level conversational Macro's.if it works ,Id run the machine and make parts and money until I had all my Emc things worked out. The drives are analog dc brush motors.

The tool changer is almost identical to my Marsurra's.It has a sensor for tool1 and another to count to tools afterwards.It should be no problem to write a comp for or do in classic ladder,if thats your thing.

The sequence is find tool one,search for programmed tool by moving the tool chain and counting up or down,stop chain,swing arm,unclamp tool,drop arm ,rotate arm ,put tool that was in the spindle back in its pocket,pull arm up,return arm.Matsurra's are hydraulic,I dont know if the tree is.

Tree's were made by ZPS in Chezslovkia and are built like tanks.Zps is still in business and imports the machines directly into the US.I strongly suspect the lower priced Monarch vmc's are ZPS.For what it is worth.....

I am waiting for the documentation to arrive from FedEx, it should have been delivered last night but now they are saying today. But, from what I have been able to gather just poking around, these are analog drives so I assume they are velocity mode in control and from what JR previously commented the motors may be brushed DC. In any case, once I get the documentation I'll know for sure, but I am very inclined to remove the existing drives and servos and replace them with more powerful and modern AC drives and servos and control them in Velocity mode as you recommended.

Frank

The spindle motor on this machine is a Yasakawa 20HP 230V Unit with what I assume is a Yasakawa drive. One of the things I was considering was to change out the drive since the drive seems to be 480V while the rest of the machine is 230V. Since I currently don't have a 480V drop in my shop, I was thinking I would just use a 230V VFD to drive the spindle motor and send the encoder feedback back to linuxcnc. After reading this thread I think I may have been wrong (?). The other option may be to find a 20HP 230V (3PH) spindle drive on ebay, but I am unsure if the spindle drive needs to match the motor. I'm just not too crazy about going through the expense of running 480v into the shop for one component of a single machine.

Frank

As far as I can tell, the input is set up for 480v and then stepped down for the rest of the machine.

Frank

Andy,
I just checked and the plate on the motor says max voltage: 200v so I am guessing the input on the spindle drive is 480v and the output is 200v. I take it running a VFD instead of the spindle drive is a no go then huh? I'm not sure if its a 2 speed motor, but it does have a 2 speed gearbox (belt drive) on the spindle and the spindle speeds are supposed to be infinitely variable. I'll try and get a picture of the plate on the motor to post up.

Frank

This is the plate from the spindle motor.

The plate on the spindle motor has the following information on it:

Type: UAASKA-15CA1S
Phase: 3
Poles: 4
INS: F

KW: 15/11 RPM:1500 RATING: 30 Min. Cont.
KW: 15/11 RPM:6000 RATING: 30 Min. Cont.

AMP: 80/71A (at 15/11 KW)

VOLT: MAX 200V

RULE: JIS C 4004
JP44: JCAOF4S

Brg. No.: 6310M2ZZAC3P60 6210M2ZZAC3P60

SER.: S138421002