MASSO G3 won t move

hamish

Hamish
hello I have just got a g3 for my router and I can t get it to move. The DRO is moving on the computer screen however nothin is moving.

I had previously tested the machine using a mach 3 breakout board with a manual controller attached so I know the drives work. I have got leadshine ES-D808 servo drives and I have connected in the differential type controller as per the attachment.



Help. Please
 

Attachments

  • BDEF62C1-B5EF-4DAF-9515-E2326835A9A2.jpeg
    BDEF62C1-B5EF-4DAF-9515-E2326835A9A2.jpeg
    587.5 KB · Views: 19

hamish

Hamish
OK so I have worked out on the g2 version the x,y,z are differential outputs and the A,B are PNP, (I think)

where the G3 they are all differential outputs. The controller I am using has the same connections as the CS-D-1008 and I have connected it correctly.

Help
 

Attachments

  • 3DB8A296-E13B-4B93-9B83-CCDC3288FB69.png
    3DB8A296-E13B-4B93-9B83-CCDC3288FB69.png
    428.6 KB · Views: 19

hamish

Hamish
So I have investigated the enable input and this basically will shut down the stepper motor and remove the holding current when I apply 5 volts to the terminals. As per the drive instructions it says to leave it unconnected.

The system just sits with all of the motors with a holding current locked in position.
 

Attachments

  • 8B1FCF2E-C701-495D-9085-2A5ED41A48D6.png
    8B1FCF2E-C701-495D-9085-2A5ED41A48D6.png
    197.2 KB · Views: 19
  • 113DE1F0-C591-4131-8486-FEFE8BB3FEB3.jpeg
    113DE1F0-C591-4131-8486-FEFE8BB3FEB3.jpeg
    184.2 KB · Views: 19

masso-support

MASSO Support
Staff member
Hi Hamish,

From your description you appear to have the axis wired correctly.

If you are working on just one axis at this time have you tried connecting to a different one and seeing if that works?

Can you please share a screen print of the settings on one of the axis you are having trouble with and one of the F2 screeen? To get a screen print just press CTRL+P on your keyboard and it will dump a screen print to your flash drive.

Could you share a photo of the connections into the drive and one of the Masso axis connection?

Cheers

Peter
 

hamish

Hamish
Print screen as requested
 

Attachments

  • controller-connections.jpg
    controller-connections.jpg
    697.6 KB · Views: 21
  • stepper-connections.jpg
    stepper-connections.jpg
    639.3 KB · Views: 18
  • Print-Screen-003.bmp
    769.1 KB · Views: 20
  • Print-Screen-002.bmp
    769.1 KB · Views: 21

masso-support

MASSO Support
Staff member
Thanks Hamish,

Looking at the Z axis setting you have the soft limits set incorrectly.

Set you Maximum travel to 0 and your minimum travel to -117

The Z axis is usually zeroed at the top making the maximum 0 and the minimum must be less than the maximum so this would be -117.

Let me know is this helps.

Cheers

Peter
 

hamish

Hamish
No this didn't work

I have an MPG as well and its not working either
 

Attachments

  • Print-Screen-004.bmp
    769.1 KB · Views: 19
  • Print-Screen-005.bmp
    769.1 KB · Views: 24

masso-support

MASSO Support
Staff member
I see in the screen print that you have the MPG set to off.

The MPG axis should change to indicate X,Y,Z etc as you rotate axis selector.

Also you can only jog with the MPG when you are in the F3 jog screen.

Have you tried the using buttons on the jog screen?

Cheers

Peter
 

hamish

Hamish
MPG is currently disconnected and I have tried it from both the MPG and the jog screen. Neither will work.



I have included a picture of the board layout for clarity. The estop is temporarily hanging for the moment while the door is off the enclosure.

I tried temporarily wiring the homeing limits is as well and this had no effect with them connected or not
 

Attachments

  • layout.jpg
    layout.jpg
    2.1 MB · Views: 17

hamish

Hamish
When I am in the F3 screen and I operate the buttons with the mouse or use the MGP the numbers in the highlighted areas move as if the machine should be moving however the crosshair in the left hand corner never moves
 

Attachments

  • screen-notes.JPG
    screen-notes.JPG
    75.3 KB · Views: 22

hamish

Hamish
100 % Both sets of DRO numbers are moving when I use either the F3 page with the mouse or if I plug in the MGP the same will occur.

If I go to the F3 page and hit the homing button it will move all of the DRO scales as well

In both instances nothing mechanically moves.
 

masso-support

MASSO Support
Staff member
looks like the drives require more current then masso is able to supply, please do the below test:
  1. Try to move one of the motors to one direction.
  2. Then measure the voltage on D- and D+ pins when the drive is connected to MASSO.
  3. Then move in the opposite direction and measure the D- and D+ voltage again.
  4. let us know what are these two voltages.

After this do the above test again but this time disconnect the drive from MASSO and measure D- and D+ on the masso connector.

Then
 

hamish

Hamish
With the following measurements between the D+ and the D-

x axis
  1. With the lead plugged into the controller moving in the positive direction -3.213 volts
  2. With the lead plugged into the controller moving in the negative direction 1.910 volts
  3. With the lead un-plugged into the controller moving in the positive direction -3.705 volts
  4. With the lead un-plugged into the controller moving in the negative direction 3.714 volts

all other axis are the same measurements within the last decimal figure. they are connected in a differential arrangement.



when I plug in my mach three manual jog controller to the stepper motor driver (pnp arrangement) it has zero voltage while no direction buttons are being pressed with the masso it will hold the last command voltage on until I press the opposite direction of travel.
 

hamish

Hamish
Just tested all of the outputs down to the ground terminal and all are reading 4.8 volts when they go high, with exception of the ES-output this switches with the emergency stop and it is only going between 3.7 volts and zero when the e-stop is operated should it be going to 5V?



There is no load connected to any of the outputs
 

masso-support

MASSO Support
Staff member
thanks for the data.

So when moving in the negative direction the opto on the drive is drawing a lot of current and the voltage is dropping from 3.714 volts to 1.910 volts. As per the leadshine ES-D808 datasheet, the inputs need "4.5-24V when PUL-HIGH" this means that they have a wide range and needs higher voltage to work.
 

hamish

Hamish
OK Solution?

I just connected the pulse and direction inputs in the same way as the gecko 203v and now its operating. When I measure between ground and the direction + I get 2.2V on the x axis ( I measure the same voltage in the -ve direction on all axis xyz&b)

All is operating now. Am I overloading the Masso controller by wiring in this way and will this void any warranties or cause a reduced life span.



I have included a picture of the wiring

Please not I have removed the wire connectors for clarity because they were blocking the picture

red = step+

white = step-

blue = dir+

Brown = dir -
 

Attachments

  • wiring.jpg
    wiring.jpg
    2 MB · Views: 20

masso-support

MASSO Support
Staff member
Hi @hamish we were also thinking this way but were not sure if it would make any difference as the voltage difference would not be much. As you mentioned that you get 2.2v which we think is still less than what the drive requires, just keep this in mind in the future that just in case you have some motion issues then this might be the case.

Regarding the outputs getting damaged this way, this is perfectly fine and will not cause any damage to the controller as for some drives that have common negative inputs, this is the way to wire them.

are you based in Australia?
 

hamish

Hamish
I am based in Melbourne.

I will run it as it and see how it goes.

In regards to The es terminal what is the function and the correct Voltage and is it a TTL output. There is no information on your website yet about it.

I will fit all of the hard limits and run some tests
 

masso-support

MASSO Support
Staff member
if it's possible, can you send us one of the drives then we can do some tests and see what can be done to provide signals as required by the drives. because the manual provides very limited info and having the drives would help, then we can send you a unit that has the current limiting resistors as per the drives and you can send the current unit back. And we will be happy to pay for all courier charges for sending the drive and will send the drive back the next day.
 
Top