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Hi,

I am having overcurrent faults from time to time on my Z-axis of my milling machine. This is probably the result of bad tuning. For the X and Y axis I tuned the torque loop first, then the...

Thanks for the help so far.

I did disconnect the ribbon cable, it didn't help.
Is there a reason to twist the HV+ and GND wires, to reduce parallel running distance? Or is this useless, since...

I tried following things:

- 330 uF capacitor connected to HV+ and GND, directly on the drive, because the cables running from PSU capacitor to drive are longer than 30cm.
-2 ferrite cores on the...

Hi,

I just finished retrofitting an old CNC milling machine with VSD-XE drives.
Before installing the drives I tuned one of three drives on the bench with no load applied. Back then I already had...

As regenerative resistors I ordered three (one for each axis) 47ohm resistors which can dissipate 300 Watts. I connected one today, and it solved the overvoltage problem perfectly. (see video)
...

YouTube - VSD-XE servo drive powering 1,8kW siemens servo motor

Here you can see how it runs now, very low acceleration and deceleration. But this wil be solved once I have the brake...

Sorry for the late reply, but my account didn't work, found the problem, needed to activate it.

Thanks Al, the secondary winding where indeed on top, and easy to unwind.
At the moment of...

Hi,

I have a Mikron WF51 CNC milling machine, the machine is in excellent mechanical condition but the original Siemens controller is not working. Instead of finding out what's wrong with the...

The motors do see that voltage, but not constantly. The current to the motors is constantly switched on and off at a frequency up to 20 khz(pwm:pulse width modulation).
Because the coil of a stepper...