Mazak T Plus on QuickTurn 20 lathe: parity error and blank screen
I have a computer repair shop. Sometimes I work on Windows-based CNC controls, usually just on the "computer" features to get things working well enough so vendor technicians can have remote access to the "CNC" features.
Now, I got a call from a customer asking for help with a lathe controller. A Mazak Quick Turn 20 shows nothing on its screen. It has red and green indicator lights that mean a "parity error" according to a phone technician. An EEPROM reset was recommended, but it's not clear how to do that when the screen is always blank.
Here's the info my customer gave me over the phone. Not sure what all the numbers mean.
Mazak QuickTurn 20 lathe, 115751
Mazak T Plus
Mitsubishi M515LWY, M515LWY0265
Shortly before the screen started staying blank, it had displayed an "Alarm 24" message. My customer wasn't clear what it meant; he said there were several possibilities including "overload."
Right now, I'm just trying to figure out if this problem is something we can fix, or if shipping the control off for service is our only option.
Re: Mazak T Plus on QuickTurn 20 lathe: parity error and blank screen
the alarm 24 is a "NMI memory guard, display color red. " a cpu malfunction or self-diagnosis function (to write data) has entered data in a addressed with no memory.
Re: Mazak T Plus on QuickTurn 20 lathe: parity error and blank screen
Thanks for responses. My customer did end up getting a technician out for the machine. Two problems diagnosed: bad cable to one of the drive motors, and a bad QX141 card. Turns out it was less costly to send the entire control unit in to Mazak for refurbishing than it was to replace just the bad card.