rpm sync with spindle and motor
09 Apr 2014 07:05 #45727
by b2unit
rpm sync with spindle and motor was created by b2unit
I'm using spindle with servo motor.
the spindle rpm is increased by servo motor 3 times.
(for example, the spindle rpm is 3000 when the servo motor rpm is 1000)
now,
m3 s1000 command have my spindle rotate 3000rpm
what I want is
m3 s1000 command have my spindle rotate 1000rpm
if it's possible could you let me know how to do?
and one more question is
if I connect from encoder of the servo motor to 7i76 (A, B, Z)
Can I display rpm on pyvcp in linuxcnc by using 3 signals(A, B, Z) which come from servo motor encoder to 7i76(with 5i25)
(servo motor have 2048 pulse/1turn)
thanks,
Byoungil Choi
the spindle rpm is increased by servo motor 3 times.
(for example, the spindle rpm is 3000 when the servo motor rpm is 1000)
now,
m3 s1000 command have my spindle rotate 3000rpm
what I want is
m3 s1000 command have my spindle rotate 1000rpm
if it's possible could you let me know how to do?
and one more question is
if I connect from encoder of the servo motor to 7i76 (A, B, Z)
Can I display rpm on pyvcp in linuxcnc by using 3 signals(A, B, Z) which come from servo motor encoder to 7i76(with 5i25)
(servo motor have 2048 pulse/1turn)
thanks,
Byoungil Choi
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09 Apr 2014 09:28 - 09 Apr 2014 09:37 #45732
by PCW
Replied by PCW on topic rpm sync with spindle and motor
if you are using the 7I76 analog spindle interface you would just multiply the
spindle scale by three.
if your config was generated by pncconf,
change N to 3N in your ini file:
#********************
# Spindle
#********************
[SPINDLE_9]
OUTPUT_SCALE = N
OUTPUT_MIN_LIMIT = 0.0
OUTPUT_MAX_LIMIT = N
And yes you can use the encoder to read spindle speed
(you will have to set the encoder scale correctly)
spindle scale by three.
if your config was generated by pncconf,
change N to 3N in your ini file:
#********************
# Spindle
#********************
[SPINDLE_9]
OUTPUT_SCALE = N
OUTPUT_MIN_LIMIT = 0.0
OUTPUT_MAX_LIMIT = N
And yes you can use the encoder to read spindle speed
(you will have to set the encoder scale correctly)
Last edit: 09 Apr 2014 09:37 by PCW.
The following user(s) said Thank You: b2unit
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