Hello,

I really hope that you can help me.
We are using CNC Brother TC-31A, after the "Low battery" icon appeared, we have replaced the batteries with new ones, but then a new error appeared:
5066. 17 **M SERVO (BATT DROP)


Below I've written all info found in operation manual on the 5066 error message
Error message: M SERVO (***)
Stop level 5: The servo system stops
Reset level 3: Turn OFF the power. (An alarm cannot be reset otherwise)
Cause: A servo error has occurred for the M axis. The cause differs depending on (***). Refer to the servo error list.

SERVO ERROR MESSAGE
Display: BATT DROP
Cause: Battery voltage drop
Solution: Replace alkaline battery for absolute encoder backup


Already tried multiple times to turn off the CNC, put the old batteries back, but nothing helps.
Have no idea how to fix that, it seems like no information is available via internet, that is why I think your experience could be appreciated very highly.


Thank you in advance,
Artur