Dynomotion

Group: DynoMotion Message: 8801 From: Titus Date: 12/16/2013
Subject: Need help getting going
I'm trying to get the KFLOP to talk to the G540.

I have the PC => KFLOP <= G540 => stepper motor.

From the G540, DB25 pin 2 => JP7 pin 15, DB25 pin 3 => JP7 pin 16. That is all the connection between the G540 and KFLOP.

In KMotion, my settings are:

Channel: 0
input: No Input
output: Step Dir
Output Channels 0: 8
gain: 1

I've hit "Download Channel" more than once just to make sure. Something I did notice is that if I turn the KFLOP on and off by disconnecting and reconnecting the USB cable, when the KFLOP reconnects to KMotion and I hit "Upload Channel", the settings that I gave it are lost. This makes me wonder if the settings are actually downloading.

I am using USB power by the way, with J1 jumpered.

I have no idea what the settings on the "Step Response" screen are supposed to be, so that might be a problem. I clicked "Move" and "Step" and the graph changes but nothing happens with the motor.

The G540 has the green "POWER" light lit, and the red "FAULT" light is not on. Charge pump is set to "OFF".
Group: DynoMotion Message: 8802 From: Tom Kerekes Date: 12/17/2013
Subject: Re: Need help getting going
Hi Titus,

You would also need a GND connection for the Step/Dir signals to work.

Your configuration seems correct.

I think the G540 has some inputs for estop and charge pump to be enabled.  Check the Gecko manual.  You can tell if the drive is enabled by checking if the motors have holding torque.

KFLOP loses its configuration whenever power is lost unless the memory is FLASHED.  But we don't recommend you to FLASH anything to the to KFLOP.  The PC can easily configure KFLOP on Initialization or Reset.  You might watch this video:

http://dynomotion.com/Help/FlashHelp/Parameters/index.html

The "Move" button should make a move at the selected Size, Velocity, Acceleration, and Jerk.  Units are Microsteps and seconds.  "Step: has no useful purpose for a Stepper Motor.

HTH
Regards
TK 



Group: DynoMotion Message: 8803 From: Tom Kerekes Date: 12/17/2013
Subject: Re: Need help getting going
Hi Titus,

You would also need a GND connection for the Step/Dir signals to work.

Your configuration seems correct.

I think the G540 has some inputs for estop and charge pump to be enabled.  Check the Gecko manual.  You can tell if the drive is enabled by checking if the motors have holding torque.

KFLOP loses its configuration whenever power is lost unless the memory is FLASHED.  But we don't recommend you to FLASH anything to the to KFLOP.  The PC can easily configure KFLOP on Initialization or Reset.  You might watch this video:

http://dynomotion.com/Help/FlashHelp/Parameters/index.html

The "Move" button should make a move at the selected Size, Velocity, Acceleration, and Jerk.  Units are Microsteps and seconds.  "Step: has no useful purpose for a Stepper Motor.

HTH
Regards
TK 



Group: DynoMotion Message: 8804 From: Titus Date: 12/17/2013
Subject: Re: Need help getting going
Thanks for the fast reply.

I connected DB25 pin 18 => JP7 pin 25 and DB25 pin 19 to JP7 pin 26 for the GND connections which I'm assuming should cover my bases.

The chargepump/estop I had already disabled on the G540 so I knew that wasn't the problem.

I went back to basics and started testing the continuity of the cable I was using and sure enough -- the cable pinout wasn't how I thought it was labeled and thus the correct pins were not mapping as they should have been.

I tossed the cable and used some one-pin arduino style connectors to temporarily make all the connections. I'm very happy to say it's working now.

I'll definitely watch the video you mentioned when I have more time later tonight.

Thanks for your help!