Topics

1

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.

2

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.

3

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 ?