- Joined
- Oct 14, 2014
- Messages
- 2,106
Jim,
This is an open letter to you. Sorry about the length. Take your time to respond.
I have unacceptable acceleration on my mill. Got to fix before putting it to work. other than this, I think its ready to go. As you well know, I've had a HORRIBLE time with DMM setup. I find the manual **** poor and flat out misleading at times for torque servo setup. (looks to be pretty good for pulse direction)
I want to go through each setting to find the problems. First, look at DMM settings.jpg for my X axis. I want to go through each one.
First, I got Main, speed and integral gain by running the DMM auto servo tune. I am real tempted to only set a main gain, with speed and integral at 0. Then tune in WSDK. I think we got two smart controls fighting each other. your opinion?
Torque filter constant is set at 100. Do not know why I set it this high and don't completely understand its use. Is it the about the same as galil PL? Where should it be set? Again, I am tempted to set it real low and then tune in Galil - two controls fighting.
I have max acceleration set at a very low value - 4. Real likely to be a problem. look at the snip from the manual on max accel. I find it totally confusing on what setting is right.
max speed is set at 60. Learned the HARD WAY, this is actually servo dead band. i am pretty sure 60 is correct.
Also learned the HARD WAY that OnPosrange is dead zone center value, and the setting of 65 should be correct.
Gear number documentation is confusing to me. Some sections imply it does not apply to torque servo. I know better, the machine will not run with a setting of 500 - BTDT. other sections say it max motor RPM at 10 volt input in analog modes, that is why I tried 500 RPM to give a max speed of 100 IPM on the machine. Know what this really does???
Line Number is currently set at 2048. this could be part of the accel problem as it just gives too many pulses per inch of 40960. then its up against the max accel parameter in Camsoft of 99999. I see minimum value in torque servo of 500. This would give 10000 pulses per inch. I plan to make this change.
SO, WHAT ELSE AM I MISSING???
I clipped every manual section of interest.
This is an open letter to you. Sorry about the length. Take your time to respond.
I have unacceptable acceleration on my mill. Got to fix before putting it to work. other than this, I think its ready to go. As you well know, I've had a HORRIBLE time with DMM setup. I find the manual **** poor and flat out misleading at times for torque servo setup. (looks to be pretty good for pulse direction)
I want to go through each setting to find the problems. First, look at DMM settings.jpg for my X axis. I want to go through each one.
First, I got Main, speed and integral gain by running the DMM auto servo tune. I am real tempted to only set a main gain, with speed and integral at 0. Then tune in WSDK. I think we got two smart controls fighting each other. your opinion?
Torque filter constant is set at 100. Do not know why I set it this high and don't completely understand its use. Is it the about the same as galil PL? Where should it be set? Again, I am tempted to set it real low and then tune in Galil - two controls fighting.
I have max acceleration set at a very low value - 4. Real likely to be a problem. look at the snip from the manual on max accel. I find it totally confusing on what setting is right.
max speed is set at 60. Learned the HARD WAY, this is actually servo dead band. i am pretty sure 60 is correct.
Also learned the HARD WAY that OnPosrange is dead zone center value, and the setting of 65 should be correct.
Gear number documentation is confusing to me. Some sections imply it does not apply to torque servo. I know better, the machine will not run with a setting of 500 - BTDT. other sections say it max motor RPM at 10 volt input in analog modes, that is why I tried 500 RPM to give a max speed of 100 IPM on the machine. Know what this really does???
Line Number is currently set at 2048. this could be part of the accel problem as it just gives too many pulses per inch of 40960. then its up against the max accel parameter in Camsoft of 99999. I see minimum value in torque servo of 500. This would give 10000 pulses per inch. I plan to make this change.
SO, WHAT ELSE AM I MISSING???
I clipped every manual section of interest.
Attachments
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DMM settings.JPG94 KB · Views: 7
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DMM gearing.JPG72.3 KB · Views: 8
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DYN4 Servo Drive Firmware Release Notes Nov 22, 2017-1.pdf166.7 KB · Views: 0
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line_number.JPG63.8 KB · Views: 4
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max accel speed.JPG93.5 KB · Views: 4
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MaxSpeed OnPos GearNum.JPG129.7 KB · Views: 4
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P I D torque settings.JPG204 KB · Views: 4