Amp fault setup... joint.X.amp-fault-in

tommylight wrote:

I use Axis GUI/PlasmaC, i never had to close, just enable and move on.
This is a stepper system with LAM Technologies drives, they have no "reset" input, just disable (taken care by LinuxCNC on fault), enable.

The lams have a fault output which can be connected to amp-fault-in
I have seen it trigger if the drive overheats or the motor overheats when pushing to the extremes. Note it can take time for things to cool down before it can be reset.

Proper mounting per Lams specs generally solves the drive overheat.
The step boost function to 30% to 50% of desired current when at constant velocity  keeps things cool and eliminates motor faults.

Without the amp-fault-in, I had some massive lost steps and racked gantries when the drives  got hot. 
Reducing the current is quite safe becasue the drive is only working when accellerating and at constant velocity, the required current might only be 12% of the peak current. 

The Stepperonline Y-series drives do not have a reset function which can be activated by an external input.  They must be power-cycled to recover from a fault.

If they are connected to a WinPC via a serial connection, the 'tuning' software can reset a fault condition.  But that's not really helpful - or available - when using then under LCNC.

I use air-quotes around 'tuning' because it's likely the worst bit of software I've come across - as is the usb-serial dongle needed to connect to the drive.

The saving grace of the Y-series is that they can take 110VDC and so can drive steppers at extremely high speeds.  Plus they're cheap.

Rod, mine never overheat, i run them at 2A.
Had issues with a 12 meter plasma torch cable that came unshielded (got 2 new), causing so much interference that would trip the drives with "motor wiring error".
Also the motor wires were unshielded.
Changing to shielded wiring solved that.

To be fair, I don't think you were running at 5 to 8 m/sec/sec acceleration. I really smashed them hard to see what they were capable of then backed off. It was amazing how much further you could push them with the step boost feature. Once a 120 amp plasma cutter overheated when just cutting at 40 amps without the drives or motors overheating, I figured I had tuned them!