RE: [CAD_CAM_EDM_DRO] EMC stg2mod.o and problem with homing

Asim,

Which EMC version are you using?
Also are you using the Servotogo 2 card?

There was a problem a while back with index pulse
latching on STG2 that was fixed on later distributions.

Les

Leslie M.Watts
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Tiger Georgia USA
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-----Original Message-----
From: Asim Khan [mailto:asimtec@...]
Sent: Monday, September 15, 2003 9:07 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] EMC stg2mod.o and problem with homing


Hi group!

I am having trouble with EMC homing.

My EMC settup is as follows:

Motor type: DC-Servos
Control system : EMC with Servo2go card
motion control modue: stg2mod.o

ini settings related with homing are as follows:

HOMING_VEL = 0.1
HOME_OFFSET = 0.0
HOME_SWITCH_POLARITY = 0
HOMING_POLARITY = 1

when home switches in my machine are active they generate low
output thats why i've set the polarity in ini to "0"

When i am in manual mode, i select the axis by clicking the axis
position counter and then i press home button. as soon as i click
home button the selected axis moves in the direction to touch
home switch. But after touching the home switch the axis do not
stops, donot zero and neither they turn green!! instead the axis
starts moving opposite to the direction of home switch till it
presses the hard limit of the axis.
I've had used emc with steppermod.o but i never had such problem.
Please suggest whats wrong with my emc settup?

Thanks and best regards

asim







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