Fryer MB-11 Bed Mill Retrofit
12 Aug 2017 02:39 #97353
by adamj12b
Replied by adamj12b on topic Fryer MB-11 Bed Mill Retrofit
Tonight I did some testing while talking to PCW on IRC. He suggested there might be a wiring issue, but I seem to have found something strange.
PCW suggested set all gains to 0 and set P to 10. He said also set both errors to 2.
While watching axis.1.f-error and the analogout1, the max output at a 1" error is 0.005V... 5mV!! For every digit I add to the gain, 10, 100, 1000, 10000, the output increases by the same. 0.005, 0.05, 0.5, 5.0. Using this, I found that P = 20000 creates a 10V output. However, this also makes the loop super sensitive. Something like 0.0006" error will create a 10V output.
I tried adjusting all the scale and min/max outputs but nothing would change the output.
Here are the settings the tests were performed at.
PCW suggested set all gains to 0 and set P to 10. He said also set both errors to 2.
While watching axis.1.f-error and the analogout1, the max output at a 1" error is 0.005V... 5mV!! For every digit I add to the gain, 10, 100, 1000, 10000, the output increases by the same. 0.005, 0.05, 0.5, 5.0. Using this, I found that P = 20000 creates a 10V output. However, this also makes the loop super sensitive. Something like 0.0006" error will create a 10V output.
I tried adjusting all the scale and min/max outputs but nothing would change the output.
Here are the settings the tests were performed at.
FERROR = 2.0
MIN_FERROR = 2.0
MAX_VELOCITY = 5.0
MAX_ACCELERATION = 10.0
P = 10
I = 0
D = 0
FF0 = 0.0
FF1 = 0
FF2 = 0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 10.0
ENCODER_SCALE = 40000.0
OUTPUT_SCALE = -10.0
OUTPUT_MIN_LIMIT = -10.0
OUTPUT_MAX_LIMIT = 10.0Please Log in or Create an account to join the conversation.
12 Aug 2017 13:38 #97374
by adamj12b
Replied by adamj12b on topic Fryer MB-11 Bed Mill Retrofit
Hello PCW,
Here are the files.
INI: www.dropbox.com/s/vogaayxgw8ewbd3/MB11.ini?dl=0
HAL: www.dropbox.com/s/68cct21zdesmo1a/MB11.hal?dl=0
Hello Andy,
Yes, They match exactly.
Here are the files.
INI: www.dropbox.com/s/vogaayxgw8ewbd3/MB11.ini?dl=0
HAL: www.dropbox.com/s/68cct21zdesmo1a/MB11.hal?dl=0
Hello Andy,
Yes, They match exactly.
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