You might need to check your information on the model you've identified
Mitsubishi never produced a model 4. The controller series
went L0, L1, L2, L3, L300 L500 and so on.
Either way a Z70 alarm is thrown when your machine looses its
absolute position information (i.e. your machine home has been lost)
This problem usually occurs when a - a battery went dead, or there's a
You can download the correct instruction/operation manual from
meau . com in the US, and there will be instructions on how to
reestablish you home positions.