Messages

11

PoKeys / Re: Beware Pokeys 57E is NOT a stand alone BOB

« on: June 13, 2016, 10:48:32 AM »

It will drive optocouplers, EL817 and others work without problem, just use schematic in the manual for connecting them. Cant see how a small board with only CPU on it could drive the whole machine... 10V pwm....  it should have been obvious.
And for what it is and for the price, pokeys is unbeatable.

12

PoKeys / Re: Driver Connection

« on: June 09, 2016, 07:31:08 PM »

Well its clear that 5V can't be common as the manual states SIGNAL , GND so when the signal is active (step or dir) its putting 5V to the signal pin or so it seems. So you cant wire 5V to the drives input optocoupler (depending on the drive you have not stated which you use) and pull other pin down to gnd to signal a step or dir.

to repeat myself  pin3 to dir+ , pin4 to dir-, pin5 to stp+, pin6 to stp-. connecting every - pin on the the drive together might be wrong (because each one is a separate optocoupler input with its own +/- pins) depending on the controller and how it handles outputs. If you wire differential outputs connecting all - together then 1) it will not work 2) might damage the outputs

Look at this pdf from CS Labs about wiring differential outputs
http://www.cs-lab.eu/en/upload/pdf/CSMIO_IP%20EN%20differential%20outputs_rev2.pdf

Until someone from PO Labs comes out with an answer I can't tell you which type are the outputs on pokeys57cnc, single ended or differential, you might try measuring with a multimeter if motor connector pins 4 and 6 are the same.

13

PoKeys / Re: Driver Connection

« on: June 09, 2016, 05:45:37 PM »

Well I designed my own interface for the 57E with differential line drivers on the outputs . So can't answer directly but looking at the board manual the motor connectors have a STEP and ground wire for it and DIR and ground and its not stated are these grounds the same or conveniently put to a separate wire for easy wiring or something else like wiring schematic for their POSTEP.
First you should try to use STEP and DIR only without enable (don't know which drives you use but any chinese dont need this signal connected to work) with their ground pair ... so pin3 dir , pin4 dir gnd, pin5 step, pin6 step gnd.

14

PoKeys / Cant command any movement after homing

« on: June 09, 2016, 03:14:04 AM »

Another issue beyond MPG I have is that the machine finds home nicely and this all works as it should, but I can not command any movement trough MDI after that . I can jog and MPG no problem turn outputs etc, but it will not move with G0 G1.

If I press STOP it says, machine motion stopped, please reference machine.... After that everything works but the machine is derefed (machine coordinates are still correct thou).

My first thought was it has something to do with soft limits but turning them off does nothing. Another one was that the load on the device is at peak, so I turned down the communication speed to MEDIUM and it dropped to around 60% . It did not help. This is all the same after I updated to new plugin from 29 may.

15

PoKeys / Re: MPG increment value

« on: June 09, 2016, 03:06:08 AM »

After some looking around I found that when I set my increment to 0.011 it works, while its set in mach when I look at pokeys configuration sofware under pulse engine down at the MPG it says
Multiplier : 1 .... it sure ain't one step of motor so I cant understand its value, when I set 0.1mm increment value is 9 and when its set at 1mm inc its 98 ?

16

PoKeys / Re: Driver Connection

« on: June 09, 2016, 02:57:47 AM »

"connected to motor connector ground" if this is motors power supply ground then its wrong, you should have connected ground from the pokeys57cnc.

I have my pokeys running servo motors perfectly without issues in motion.

17

PoKeys / MPG increment value

« on: June 06, 2016, 06:15:34 PM »

I am using Pokeys (pulse engine) with mach3 062 version so its one before latest and the pokeys plugin is from May. Its used on a VMC retrofit with DC servo drives, my steps per mm are 393,7008 (2000 rev) on 5.08mm (0.2 inch) pitch ballscrew so one encoder count is 0.00254 mm.
Problem is , among other strange behaviors with homing which I will post in separate thread, that MPG works only with increments down to 0.02 , anything lower and it will not respond to MPG.
MPG is handled trough pulse engine and everything is setup as in manual. Looking at the settings page of Mach screenset MPG1 velocity and count are responding but I get movement only when the increment is set to 0.02 or higher.

18

PoKeys / Index Homing pins

« on: March 28, 2016, 02:04:37 PM »

Can we use external pulse generator (125khz PoExtBusOC16CNC) and index homing feature on Pokeys57E?
To me it looks like they are in pin collision as 9 11 and 27 are fast encoder inputs used for index homing , but 9 11 and 51 are signal generation for external pulse engine?
Can X Y index inputs be moved to 5-6 ?

19

CS-Lab / Re: Camino/ip-m spindle speed

« on: March 21, 2016, 07:16:17 PM »

Go to plugin settings and in spindle tab there should be spindle acceleration if its zero enter some value. That should start it

20

CS-Lab / Re: Looking for feedback on running a CSMIO/IP-A with Mach 4

« on: February 02, 2016, 09:39:10 AM »

Well I have traced some of wires, I still have the relay board to work out and the power supply part . I sent you a PM