Author Topic: how do i change cw/ccw from a motor in mach 3 ??  (Read 4772 times)

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Offline swets

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how do i change cw/ccw from a motor in mach 3 ??
« on: September 08, 2006, 11:37:42 AM »



I have  on my machine on the Y-axis 2 stepper(motors)

i work with Mach 3...
and 1 motor is the Y-axis the second motor is connect to the A-axis
and is a slave Axis from Y...
but because (i think i didn't connect them the same) they don't turn the same way.

So i have , in Motor Home/Softlimits, click on the reversed from motor Y

and yes ... everything works alright... both motors goes the same way....
Only the DRO  of the Y-axis count the wrong way...

but what i do, don't get it right ...  if i turn the motors... and the systemhotkeys... they the DRO still counts the wrong way..

but with the other axis i don't have that problem?... Is it something with the slave axis??
« Last Edit: September 08, 2006, 11:55:14 AM by swets »

Hood

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Re: how do i change cw/ccw from a motor in mach 3 ??
« Reply #1 on: September 08, 2006, 01:18:10 PM »
Try changing the Dir Low Active setting in the motor outputs page.
Hood

Offline Chip

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Re: how do i change cw/ccw from a motor in mach 3 ??
« Reply #2 on: September 08, 2006, 02:54:28 PM »
Hi, Swets

Turn the Power Off before changeing wires.

This is for Bipolar 4 Wire Steppers only, You need to change two wires that go to one coil in the stepper motor.

If your using Geco stepper drives, Thay have Phase A, B, C, D,  swap the Phase A and Phase B wires around on your Y axis, then uncheck the rev. in Home Limits.

If your using other Bipolar drive it should have A+,  A-,  B+, B-, Swap the A+ A- wires around then uncheck the rev. in Home Limits.

For 5, 6 ,8 Wire steppers Unipolar

Thay usually have terminal marking's 1, 2, 3, 4, or A, B, C, D,  mark the wires then remove them, reinstall them in rev. order 4,3,2,1 or

D,C.B,A this will change the direction, then uncheck the rev. in Home Limits.The DC power + or -. 5th wire to the stepper motor should

not be changed.

This will allow you to use your Default Settings in Mach.

Hope this Helps, Chip

Offline swets

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Re: how do i change cw/ccw from a motor in mach 3 ??
« Reply #3 on: September 08, 2006, 07:24:52 PM »
Alright...  tomorro i change first all that...


Thanks...