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Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi everyone.
I'm trying to get my CNC up and running using KFLOP/KANALOG but I'm Super lost on how to get anything moving.
I've built a couple of machines before using MACH3 so the whole 'ports and pins' routine is fairly simple for me by now. However I have no clue on how to wire or configure KFLOP/KANALOG (KMOTION).
I've read everything I can find on the subject but it just seems to confuse me even more. I don't think I understand the whole concept of using 'channels' instead of just designating pin numbers (I'm definitely missing something!).
I've made a small test setup with the purpose of getting one single stepper (axis) running to hopefully help me understand how the configuration works before I start rewiring my entire machine.
I've wired Step/Dir to Kanalog JP1 A0+/- and B0+/- and ENBL to JP1 A1+/- (I hope it can be seen from the attached pictures).
I understand that a 'init.c' program is needed but I don't understand how I define the "pin numbers" - I have no C programming experience.
I really appreciate if you could help me get the motor running and help me understand how the wiring/configuration and init.c process/workflow works.
Best Regards from Denmark :)
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi teglberg,
No that is pretty much all wrong. Kanalog doesn't have any Step/Dir Outputs. Those are encoder inputs. Normally Kanalog is not needed with Step/Dir Drives. Do you have a purpose for it? Maybe differential encoders? Or need analog signals? Please do not apply power until you fully understand things.
Many find the channels concept confusing. You might read this.
Step/Dir outputs are on KFLOP. See here.
You don't need any C Programming to test Step/Direction motion.
HTH
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Thank you very much Tom. That already explains why I've been having so much trouble finding info on the subject.
I can see that I've misunderstood some things. I thought that JP1 on the KANALOG was basically just re-routing to JP7 on the KFLOP and therefore I could connect the step/dir to there. I can see that I'm wrong. Thanks for clearing that up for me :).
The reason that I'm using kanalog is because I later on in the project would like to change to a closed loop system with encoders or magnetic scales. The reason why I'm moving from a "classic" open loop/ mach3 system in the first place is because I needed more I/O's to facilitate probes/ ATC's etc.
Thank you so much for the shared links. I really think that explained a lot!
I will rewire my setup so that step/dir will go to JP4 on the Kflop instead.
I will then add the multiplexing bit
"FPGA(STEP_PULSE_LENGTH_ADD)=32+0x40;// set the pulse time to ~ 2?s and multiplex to JP4 and JP6"
Is that understood correctly?
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Quote:
Originally Posted by
TomKerekes
You don't need any C Programming to test Step/Direction motion.
HTH
I've wired my step/dir to JP4 Pin13+14 on the Kflop.
What do I need to do from here to get the motor running?
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
I think those Drives (DQ542MA) need to be driven in 5V Open Collector mode where the + pins are connected to 5V and the open collector Step/Dir outputs pull the - pin to GND. As described in the previous link JP4 pins 13 and 14 can not be used in open collector mode because they have 150 ohm pull down resistors. You could use pins 15 and 16 in open collector mode or possibly JP5 see FAQs here.
It would help to know what type of system this is. How many axes and encoders will you eventually have?
HTH
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
The stepper moves fine when step/dir is connected to JP7 in a 'normal setup' I don't get how the multiplexing is working. How do I explain the KFLOP to us JP4/6 instead of JP5/7 so I can connnect the Kanalog?
My machine is a standard 3-axis setup with 3 (max 4) Nema 23 stepper motors and I expect the same amount of encoders in the future. I expect to be using DQ542MA drivers or similar to run the steppers.
I really appreciate you're talking the time to guide me through this.
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi teglberg,
The multiplex bit is changed by executing that line of C code.
But I think you would be better off not multiplexing and using KFLOP JP5 as described the the FAQ link I provided.
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi Tom
I think you're experienced on Dynamotion motion control
I have big plasma dc servo motors technos control
The control is not working
I want to make the control
Using kflop/kanalog
Who can give me some idea
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
I get kflop and kanalog ver 1
Servo driver's cd180
Z axis is driven by small dc servo driver microspeed 6o
This small servo have no encoder
They use proximity
If some one have such experience
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi Andualem,
You would need to supply a lot more specific information and ask specific questions.
It would be better to start your own Thread rather than hijacking someone else's.
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Quote:
The dc servo driver have inputs from the incoder
Kanalog also needs incoder connection
Is that possible to connect both ( it will be double loop )
Please post specifications and the manual for your drives
Quote:
As I see inti.c program channels bit is not specified
When I tune the motor how it select the motor
I don't understand the question. You might read this.
Quote:
And on Kanalog which pin is PWM output ( can I use General io jp 11 & 6 )
Kanalog doesn't have any PWM Outputs. Did you mean Analog DACs?
Quote:
I'm not interested on hijacking someone else's
So you should start your own thread. Please don't use someone else's.
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Axor cd 180 dc servo driver
Last time I try to check the driver's by POT
Not moving that means it is PWM ?
The question about chanel is
Where can I define chanels by bit
Ex I define limit switch bit 136 in inti.c program that is kanalog J15 pin 1 & 2
Yes DACs connection on Kanalog ?
Yes I printed above 400 pages to read
I'm trying to make new thread
It's big plasma machine
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
[QUOTE=TomKerekes;2507198]Please post specifications and the manual for your drives
AXOR CD180
Kanalog doesn't have any PWM Outputs. Did you mean Analog DACs?
Yes how ca i define channels by bit in which c program and where can i connect on the kanalog
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Please post specifications and the relevant parts of the manual for your drives. Not just the part number.
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi Andualem,
That Drive seems to accept an analog voltage not a PWM. +RIF and -RIF is where the voltage is applied. I'd recommend testing with a Potentiometer before connecting to KFLOP/Kanalog. You said you tried this but you must have done something wrong. Maybe you didn't enable the Drive?
You said the Drive has inputs connected to the Encoder. The Drive does not have Encoder inputs. So that statement must be wrong. Did you mean a Tachometer? Do you have an Encoder on the motor? Do you understand the difference between an analog Tachometer and a Digital encoder?
Re: Setting up first axis step/dir on KFLOP/KANALOG - No 'C'-experience
Hi Tom
Driver was enabled green led ON when I tried by Pot
On the driver +DT & -DT encoder was connected originally
I can send the pictures
