Crazy problem! It was the knock-off indicol dial test indicator holder that I was using. It was slipping just a little each time I did a back and forth move. I did have one encoder that was dirty,...
Type: Posts; User: jmelson
Crazy problem! It was the knock-off indicol dial test indicator holder that I was using. It was slipping just a little each time I did a back and forth move. I did have one encoder that was dirty,...
And, I am STILL looking for Kwik Switch 200 tooling. I have a FEW collet chucks and end mill holders. I am looking for a 2 or 3" face mill, but the pickings on eBay are real slim and very...
I thought I was about done with my R2E3 retrofit project. But, doing some testing, I found it was losing a little bit of position when moving. Every axis shows this, but it is worst on the Y axis. ...
I have a XSY-AT1 VFD on a 2 HP Bridgeport mill. The motor is wired for 240 V. I have been trying to get the torque boost to work right over a range os speeds. If I turn P72 up it works great at low...
Right, I am just looking for arbors that fit the Kwik switch 200 spindle taper and can take my Jacobs chucks and shell mills. I have managed to get some collet chucks and end mill holders already....
Hi, I have just finished a retrofit on an R2E3 with Kwik Switch 200 taper. I need to find some tooling for it. Especially a 1 Jacobs taper arbor and a shell mill arbor.
I have some shell mills...
I'm in the middle of a retrofit of a Bridgeport R2E3, and decided to use AMC 30A20 servo amps to replace the NC400 it came with.
I have one working 30A20AC amp, and another eBay special that doesn't...
I just dragged home an R2E3 that seems to have good iron, but the control is a mess. I will be doing a retrofit, but that would be vastly easier if I had the schematics, rather than having to trace...
We have a Huan Yang GT 7R5G-2 VFD that works fine from the front panel, but we can't seem to figure out what parameters to set for remote control.
We have gotten our DAC voltage to control the...
Anyone need any Allen-Bradley 7320 parts? I have a complete system here that worked last time I used it. I have all the manuals, and CPU and I/O boards. Anybody need anything? I'm eventually...
I'm pretty sure from the docs I have that there are at least 32K and 64K encoders in the Beta series.
I make a converter for the Fanuc serial encoders that converts them to look like a quadrature...
Ah, I was looking at the wrong field in the part number. It seems that in the B275 field, the 75 specifies a (Beta)A64B encoder. Can anybody confirm this?
Apparently, his encoders do NOT have...
Hello,
I have a guy who needs a retrofit on a robot with Beta M motors. I need to make sure I know what encoders are on the motors.
These are (Beta)M0.4, 0.5 and 1, part # A06B-0114-B275#0008,...
We are retrofitting a 1986 CHNC-I that originally had the General Numerics control. The axis servos and drives were already replaced with Parker/MTS brushless motors/drives, and we now have those...
I have a very hard to read pic of the plate, I don't see those words there. We will do the shorted test.
The machine was NOT running. I'm not sure to trust the sellers 3rd person report of what...
Right, the MOTOR will certainly not run off single phase. it needs a VFD of some sort. I was wondering if the Fanuc spindle DRIVE would accept single-phase power.
But, I'm pretty sure the moroe is...
A friend just got a CHNC-I and we are planning a retrofit. The servo amps and axis motors have already been replaced by prior owner. It still has the original spindle motor (A06B-1006-B220#2000)...
Levil doesn't sell a drill chuck for direct spindle mount. Geez! So, the best I could come up with was a small Jacobs chuck and a 3/8" straight shank to JT2 arbor, and mount that in a 3/8" collet...
We got a Levil mill that has the S20T spindle taper. We got a few ER16 collet chucks with it, but would like a drill chuck, too. Seems these are REALLY hard to find!
Does anybody know where to...
OK, then, it really ought to work, then!
Jon
32 KHz should work fine. 3.3 V will work OK, too, for the PWM signal. But, it appears to have PWM without a direction output. Our servo amps were designed for a sign-magnitude scheme. If used...
72 V DC will work, but you won't get full speed from the motor. This may not matter with a rotary axis. The motors usually have the voltage needed to achieve rated RPM on the nameplate, often 120 -...
No, you don't need 3-phase mains power. That is a totally separate issue from the motor using 3-phase power to move it. That 3-phase power is generated by the servo amp.
So, there are a couple...
GREAT! Now that you have a motor there with the right protocol, you can examine it at your leisure, and it proves
your drives are OK, too.
Jon
Well, are you sure the drive supports the motor you are trying to connect? I've never worked with the Panasonic
drives, I just got some motors cheap on eBay quite some years ago. I make my own...
Glad you were able to figure this out! I didn't know about the reverse order of the complement bits, I didn't use those
in the converter I made. I'm guessing bit 7 is a parity bit.
Have you...
OK, I'll try to get a scope on it this weekend. It is 5 V differential, as in 26LS31 / 26LS32 type drivers.
Jon
I'm a little vague on this, but my recollection is that the first 3 bits are the 3 commutation signals, then the next 3 bits are the
complement of those signals. I don't recall, but I don't...
It has been quite some time since I did this, so my memory is a bit vague. But, looking at the code I wrote, it appears the data
is at 1 Mbit/second, and I think the first 3 bits are the Hall...
I don't remember the exact format, but 10 bits total sounds right. I make a converter board to do this. It generates the classic Hall
signals. See Pico Systems : Panasonic Encoder Converter...