Setting up 5i25+7i85+8i20

More
12 years 11 months ago #40878 by stes
I'm trying to set up these but I can't find xml file for 7i85

Please Log in or Create an account to join the conversation.

More
12 years 11 months ago #40883 by cmorley
Replied by cmorley on topic Setting up 5i25+7i85+8i20
sorry I have taught pncconf about the 7i85.

probably time to update pncconf with new cards...

Chris M

Please Log in or Create an account to join the conversation.

More
12 years 11 months ago #40936 by andypugh
Replied by andypugh on topic Setting up 5i25+7i85+8i20

stes wrote: I'm trying to set up these but I can't find xml file for 7i85


You might be able to get a start by pretending that you have a 7i77 instead. Clearly many of the 7i77 pins won't actually exist, but the encoders "belong" to the 5i25, and the 8i20 pin names will be the same too.

There is information that you might find useful in the future that can be gleaned at the command line.

Install the 5i25 and connect the 7i85. Optionally connect the 8i20.
Open a terminal window and type
Code:
sudo dmesg -c {You will be asked for a password} halrun loadrt hostmot2 loadrt hm2_pci show pin show param exit dmesg
You should be able to copy and paste the output from "show pin" and "show param" into a text file for future reference.
These are the pins that can be used in the HAL file, that you can either create by hand, or have PNCCONF create for you, or (most typically) a bit of both.
The second dmesg will show you which FPGA functions are on which 5i25 pin (this isn't all that much help in telling you which terminals those are on the 7i85)

Please Log in or Create an account to join the conversation.

More
12 years 11 months ago #41218 by stes
Replied by stes on topic Setting up 5i25+7i85+8i20
Andy,

I have noticed that you use a 8i20 to drive ac servo motors also. Is it complicated to set it up? I have never used Linuxcnc, so this is all new for me.

Please Log in or Create an account to join the conversation.

More
12 years 11 months ago #41220 by andypugh
Replied by andypugh on topic Setting up 5i25+7i85+8i20

stes wrote: Andy,

I have noticed that you use a 8i20 to drive ac servo motors also. Is it complicated to set it up?


I think the answer is "Yes", mainly because AC servos are themselves fairly complicated.

What motors do you have?

The complexity is not with the 8i20 (which simply needs to know what current to supply, and at what phase angle) but in working out where the rotor is. How you do this depends on the motor and what feedback it offers. it is simpler for spindles than for axis motors.

Please Log in or Create an account to join the conversation.

More
12 years 11 months ago #41244 by stes
Replied by stes on topic Setting up 5i25+7i85+8i20
I'm using Sanyo Denki P5 1kw. Would it be easiest to detect the phase by powering one of the phases at start up?
This motor has hall effect sensors also.

Please Log in or Create an account to join the conversation.

Moderators: cmorley
Time to create page: 0.162 seconds
Powered by Kunena Forum