Acorn / Leadshine "9031 DRIVE FAULT"

[Richard70]

Three axis hooked up - getting "9031 DRIVE FAULT" message when 'cycle start' is initiated.
Disconnecting drives, leaving limit and E stop connections in place: Same fault message.

Restarted from scratch, disconnected all and redid "Bench Test"
When setting up "Bench Test" - all my previous axis setup conditions remained.
Ran test program - all axis readouts responding to G code instructions.
Report:

reportBT_985DADEB7306-0103180445_2018-02-28_11-15-12.zip

(178.34 KiB) Downloaded 121 times

Reconnected drives (but did not turn on +5VDC and 72VDC to drives)
Reset Wizard to Leadshine and added input 3 and 4. Remaining settings not changed
Machine "home" would set, but "9031 DRIVE FAULT" message stopped all actions.
Report:

reportDC_985DADEB7306-0103180445_2018-02-28_11-25-52.zip

(178.38 KiB) Downloaded 85 times

I have gone over my wiring (more than once) - very sure it's correct. Also, had photos of wiring exchanged with tech support at Automation Technologies, who confirmed all was corrrect. Tech support at AT kindly put together a drive / motor combination to an Acorn board and had zero problems making it work. They have not been able (so far) to work out a solution.

Can anyone work out what's wrong or what I'm doing wrong?
If any photos of setup or screenshots needed, I have lots....


Using Acorn rev3 (171025) controller for 4 axis lathe with;
Z, X, B axis:
KL-8082H (Leadshine CS-D1008) drives
KL34-8N-1000 (Leadshine ES-M23480-M) Hybrid servo motors
C axis:
Waiting to get three linear axis working first.

[agvengineering]

I am having the same issue, i am running 3 geckos 203v connected according to the schematics, if I connect the 5vdc all my drivers start with orange light (fault) and i get the 9031 DRIVE FAULT when I try to move any axis, when i remove the 5vdc my drivers go to green light but when i try to do any movement i get the same alarm.

I contacted Centroid and they told me there must be a wiring issue, i should not be getting any fault with the 5vdc connected, but i have everything according to the schematics.

[Gary Campbell]

I have my current project running on Leadshine CS-D1008 drives, and am using the alarm feature. There is some general, but no schematic info here: https://youtu.be/TLOtXTOSUWo

In brief, I used the DB 25 connection after attempting unsuccessfully to use the board terminals with the onboard 24v and a 5v modified version. I would suggest that for some reason Leadshine drives do not play well with open collector signals, at least the way I have done it.

I did use the 5v power supply to provide power for the alarm circuit, which I ganged thru a relay module as shown here: https://youtu.be/kN-EzRbRa_k

Could you post a schematic of your connection to the drives (at least one)?

[Richard70]

I have the drives wired according to the Centroid schematic:
"Acorn_rev3 Connections to Leadshine DM series stepper drive"

ACORN_rev3 CONNECTIONS TO LEADSHINE DM SERIES DRIVE.pdf

(87.31 KiB) Downloaded 133 times

I simply added the other two drives wired to the 2nd and 3rd axis on the Acorn board.
The above is the schematic used by Automation Technologies tech support to get one drive/motor running - they apparently had no problems ????

Using the DB25 connector seems to be an option.

Also, since there also seems to be a problem with using 5V for the drive - maybe another solution would be to add the series resistors to the drive PUL+, DIR+ connections for Leadshine drives and hook them to the 24V supply instead??
KL-8082H manual from Automation Technologies shows this option, IF 2k resistors are connected in series to the PUL+, DIR+ inputs from +24V.
"VCC 5-24V, 5V recommended" is shown in the Leadshine manual but no similar resistor recommendation.

Will check to see if +24V is o.k. to connect directly to the VCC input of the drive.
Willl also check with AT to see if they connected the drive VCC to +24V

[martyscncgarage]

I wonder if you have to go into the ADVANCED TAB in the Wizard and INVERT the ENABLE circuit?

[Richard70]

Enable boxes were checked off - they were not when running "bench test".
I unchecked the boxes and tried running the Acorn board (drives wired but not powered with either the +5V or motor power (72VDC)).
Same result - "9031 DRIVE FAULT".

I have asked Automation Technologies whether the test they made (that worked without issues) was wired to +24V iso +5V for VCC. Sent last night, hope to have an answer this morning.

[martyscncgarage]

Enable boxes were checked off - they were not when running "bench test".
I unchecked the boxes and tried running the Acorn board (drives wired but not powered with either the +5V or motor power (72VDC)).
Same result - "9031 DRIVE FAULT".

I have asked Automation Technologies whether the test they made (that worked without issues) was wired to +24V iso +5V for VCC. Sent last night, hope to have an answer this morning.

Let me ask this,
If you disconnect your drives from Acorn step, direction & enable signals and power the drives up with the stepper motor power supply, do the motors hold?

Are you using INPUT 5 for the ALARM input from your drive? If so, how do you have it wired?
You can also invert that input. From the main CNC12 screen, press ALT-I, cursor your box over input 5(assuming that is where you wired the alarm input) press CTRL+ALT+I to invert the input, then try and move your motors.

Report back
Marty

[Gary Campbell]

The OEM LeadShine drive config is for the enable pin to be unconnected. Have you made a connection to them? What happens if you remove it?

[Richard70]

First; I was going through the manuals, schematics and all the Wizard settings again and noticed that the input 5 (drive OK) setting was at NC - changed it to NO (not used on my bench test) and now I can run the Acorn with G code - BUT the motors do not run.
Should have checked back here earlier, would have saved me over an hour. . .

Not using the enable inputs - they are open circuit.

Did pull the Acorn plugs for the motor signals (H2 H3), motors do not hold.

Noticed one odd item;
If the Acorn board is powered off when the motor power and 5V for VCC is on to the drives, the Acorn board "24V LED" is dimly lit. Checked voltages and found that there is just over 4VDC on the PUL and DIR connections on the Acorn board.
This means that the LED for the optoisolator on the drive is 'on' as the Acorn internal circuit is low enough impedance when power to the board is 'off' to draw some current - but how does this turn on the Acorn "24V LED" ??

Have I inadvertently wrecked something by powering the +5VDC and +72VDC for the motors/drivers together after powering up the Acorn board while bench testing?

[martyscncgarage]

I went out and connected my KL-5080H up to ONLY 24VDC as shown in the picture and the motor locks. Yours should too.
Are you connecting your DC power supply as shown and you don't get motor lock?