Suddenly, my machine's z-axis became unresponsive to Mach3.
By swapping the x- and z-axes, I determined that the stepper motors are ok. Thanks KT CNC
I then followed Geckodrive's instructions to determine whether a drive is broken and found that none of the drives are broken. The digital multi-meter (I use a Draper 60792) gave non-zero readings all through. The pix of the vertical axisí motor drive is attached.
I have had the control box in well-kept storage since about a year. Could that be a contributor in any way? Nothing appears to be physically damaged in the box.
Can anyone help please? Business is picking up and I need to be able to cut perfect templates always.
Q.) How do I determine if my drive is broken?
To check your drive using a digital multimeter (DMM), follow these steps:
Turn off power to your drive.
Set the DMM to Ohms and put the negative lead on terminal 1 on the drive.
If the drive is a stepper, put the positive lead on terminals 3, 4, 5, and 6. If any of these shows 0 Ohms there is a blown MOSFET. For a servo, do the same test but only put the positive across 3 and 4.
Now take the negative and put it on terminal 2 on the drive. If it is a stepper, put the positive on pins 3, 4, 5, and 6 and follow the same rules as above. If it is a servo, only test pins 2 to 3 and 2 to 4.
If there is a blown MOSFET, the drive must be sent back to us for evaluation. If there is more than one blown MOSFET, then it is not repairable.