7i33TA and spindle with potentiometer
29 Nov 2012 17:41 - 29 Nov 2012 17:58 #27072
by molotow
7i33TA and spindle with potentiometer was created by molotow
Hi,
very basic question:
I have a spindle configuration as follows
The output of my 7i33 on port DRV0 is between 0 and 10 VDC, so this works correctly.
But how do I need to wire the interface of the spindle with DRV0?
The description of the spindle interface is in the attached image.
very basic question:
I have a spindle configuration as follows
#spindle
net spindle-on motion.spindle-on => hm2_[HOSTMOT2](BOARD).0.pwmgen.00.enable
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.00.scale 10
setp hm2_[HOSTMOT2](BOARD).0.pwmgen.00.output-type 1
net spindle-speed-out motion.spindle-speed-out => hm2_[HOSTMOT2](BOARD).0.pwmgen.00.value
setp motion.spindle-at-speed 1The output of my 7i33 on port DRV0 is between 0 and 10 VDC, so this works correctly.
But how do I need to wire the interface of the spindle with DRV0?
The description of the spindle interface is in the attached image.
Last edit: 29 Nov 2012 17:58 by molotow.
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29 Nov 2012 19:10 #27074
by awallin
Replied by awallin on topic 7i33TA and spindle with potentiometer
From your image it looks like you wire
GND of 7i33 to pin 9 on the drive
0..10V output of 7i33 to pin 10 on the drive
Just be careful with grounding issues. If this drive is a high-power, old, or damaged, or something else is funny, then GND (pin 9) on the drive side could be something wildly different than GND on the PC/mesa side and bad things will happen.
GND of 7i33 to pin 9 on the drive
0..10V output of 7i33 to pin 10 on the drive
Just be careful with grounding issues. If this drive is a high-power, old, or damaged, or something else is funny, then GND (pin 9) on the drive side could be something wildly different than GND on the PC/mesa side and bad things will happen.
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03 Dec 2012 16:35 #27134
by molotow
Replied by molotow on topic 7i33TA and spindle with potentiometer
thanks for your reply.
I've connected the inverter as you described it.
I set the scale that with m3 s24000 the spindle should reach full speed.
But there is a strange behaviour, for example, if i enter m3 s21000 or lower the spindle turns off.
Are there any other parameters in hostmot.pwmgen, which i need to set?
thanks
I've connected the inverter as you described it.
I set the scale that with m3 s24000 the spindle should reach full speed.
But there is a strange behaviour, for example, if i enter m3 s21000 or lower the spindle turns off.
Are there any other parameters in hostmot.pwmgen, which i need to set?
thanks
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03 Dec 2012 21:28 #27140
by andypugh
Can you measure the control voltage with a multimeter? Do you see the values you expect?
Replied by andypugh on topic 7i33TA and spindle with potentiometer
I set the scale that with m3 s24000 the spindle should reach full speed.
But there is a strange behaviour, for example, if i enter m3 s21000 or lower the spindle turns off.
Can you measure the control voltage with a multimeter? Do you see the values you expect?
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04 Dec 2012 00:28 #27146
by molotow
Replied by molotow on topic 7i33TA and spindle with potentiometer
Thanks for your help, i had a negative voltage at the output of 7i33, which is not supported by the inverter.
Everything seems to work now, thx.
Everything seems to work now, thx.
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