Are these motors usefull for a Bridgeport?
Posted by
Jon Anderson
on 2000-03-23 10:44:19 UTC
I'd obtained an older Hirata industrial robot, and as I posted the other
day, have gutted the control cabinet with the goal of using the nice
Yaskawa servo amps therein. I was trying to off the robot itself for a
couple suitable servo motors, but it's apparently not worth the shipping
even if I gave it to a commercial reseller.
So, with clear concience, I proceeded to gut the robot for the servo
motors. One servo motor was exposed to view and the label had been
removed, but the one inside the column still had one. They appear to be
identical, and are Yaskawa model PMES-09-HL31. It's rated 26 volts at
5.5 amps, 4000 R/M (??), 100 watts. The encoder is a model TFUE-050Z-C7.
Have several questions:
First, these drove the robot through harmonic drive speed reducers.
These offer such a huge gear reduction, I'm wondering if these will
drive a Bridgeport table at say, 2:1 reduction?
Servo amps have a plug in that looks sort of like a huge automotive fuse
(the newer style) that sets the current. One is set for 7 amps, the
other 10 amps. The motor with the label is rated 5.5 amps.
Why are the amps rated higher than the motors?
There is no encoder count anywhere. I've not had the best luck tracking
down info on 15+ year old stuff. If I can't get this info from Yaskawa,
how can I determine the count. And for that matter, are these encoders
or resolvers? Pins are listed as channel A, channel B, channel Z,
common, +12vdc, ground, +, -, spare.
Last, the motor itself is a 4 wire, but I see no sign of brushes on the
housing. Could it be brushless? How would I tell?
I'll have more questions later, I'm sure.
Thanks,
Jon
day, have gutted the control cabinet with the goal of using the nice
Yaskawa servo amps therein. I was trying to off the robot itself for a
couple suitable servo motors, but it's apparently not worth the shipping
even if I gave it to a commercial reseller.
So, with clear concience, I proceeded to gut the robot for the servo
motors. One servo motor was exposed to view and the label had been
removed, but the one inside the column still had one. They appear to be
identical, and are Yaskawa model PMES-09-HL31. It's rated 26 volts at
5.5 amps, 4000 R/M (??), 100 watts. The encoder is a model TFUE-050Z-C7.
Have several questions:
First, these drove the robot through harmonic drive speed reducers.
These offer such a huge gear reduction, I'm wondering if these will
drive a Bridgeport table at say, 2:1 reduction?
Servo amps have a plug in that looks sort of like a huge automotive fuse
(the newer style) that sets the current. One is set for 7 amps, the
other 10 amps. The motor with the label is rated 5.5 amps.
Why are the amps rated higher than the motors?
There is no encoder count anywhere. I've not had the best luck tracking
down info on 15+ year old stuff. If I can't get this info from Yaskawa,
how can I determine the count. And for that matter, are these encoders
or resolvers? Pins are listed as channel A, channel B, channel Z,
common, +12vdc, ground, +, -, spare.
Last, the motor itself is a 4 wire, but I see no sign of brushes on the
housing. Could it be brushless? How would I tell?
I'll have more questions later, I'm sure.
Thanks,
Jon