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Weeke BHC350

9/18/24       
Circiter Member

Good morning everyone.

Ever had this issue?

When starting the machine. A 3-axle CNC it ask to be referenced.

The Z axle moves down and back up, but after this the machine stops moving. It's not moving it's Y axle and not even it's X axle.

I don't get an error message on the screen, only that "machine is not referenced".

I've checked all the Balluff end run switches and those are ok.
Is there any other possibility? Or anyone had this issue before?

9/19/24       #2: Weeke BHC350 ...
Z Member

Im not overly familiar with weeke machines but it sure sounds like its a battery problem with the encoder.

aka: it is loosing its "reference point" when the machine is turned off.

9/19/24       #3: Weeke BHC350 ...
Mike

If this machine has a positional battery back up, that is probably the issue. Normally you get an error code when the batteries are nearly depleted so that you leave the machine on overnight until the batteries are replaced. If it does not have a battery backup, then the machine needs referenced each day. This is done by satiffying sensors on each axis. Looks like it is working in Z but not the x. y axis. I would contact support.
If its a battery and you turned off the machine, it will have to be manually referenced. There is a procedure for this. Sorry, I threw away my last Weeke in 1992. Can't recall stuff, but I'm sure it has changed by now.

9/22/24       #5: Weeke BHC350 ...
rob

It is likely an incremental encoder not an absolute. The battery backup keeps the position at power off. So no need home the axis at start up. Maybe the the no is not finding the zero pulse on encoder within the distance set in the params.

9/26/24       #6: Weeke BHC350 ...
AdeaLeka

Website: https://wattsan.com/


Check the Balluff switch wiring and homing parameters for X and Y axes. Also, inspect the encoders and servo drives for any faults. A software reset might help.


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