From TechnoDocs
The following error message (with different numbers/axes) is received:
This error means the machine found the home switch in a much different location than it has previously.
This suggests that something in the system is loose.
Possible loose components for this problem are, in order of probability:
- Pulley on ball screw shaft
- Pulley on motor shaft (if it is a low power or otherwise unkeyed motor shaft)
- Loose home switch or home switch bracket
- Loose ball screw bearings
- Loose ball nut
How to check directly for loose pulleys
If this error is preceded by the following error message:
The problem is NOT loose mechanics, and you should follow the following route: Axis lost pulses error message
Note that this error will only come up if the index pulse is enabled on that axis.