Hello,
Our rock solid 1995 QT 20 has been struggling lately. Fan on the main motor seemed to be noisy, beyond just dirty, and seemingly bringing down the control. Replaced it, ran fine but the control would just turn off. Max from Mazak figured out the fan on top of the CUP was not working, Mitsubishi figured out the QX141 board was toast. but in the mean time the control was putting a 218 alarm, "Type of chucking operation (inner/outer) is not selected" I addition , in the book it adds "Outer chucking was selected for a collet chuck"
Replaced the fan and QX141 board, everything seem to be operational, off-on, homes, turret rotate, hyd pump, even input the date and time but the 218 alarm will not allow me to turn on the spindle, my assumption.
Ok, go to "machine" and soft key "chuck" and it just blanks out the soft keys. I am not at the shop but as I am going through the parameter book that there was a switch in the electrical cabinet that controlled the chuck "ID/OD", perhaps that got bumped or it failed ?
As I said, the error message started when Max started working with the machine, changing the QX141 board made no difference.
The fan being bad above the boards explained a lot of things, the control, out of nowhere would just shut off, perhaps once every few months. I did not even know there was a fan on top of the rack, for those of you with these machines, the fan is $150 from Mitsubishi, a lot cheaper than a a QX141 board.
Our rock solid 1995 QT 20 has been struggling lately. Fan on the main motor seemed to be noisy, beyond just dirty, and seemingly bringing down the control. Replaced it, ran fine but the control would just turn off. Max from Mazak figured out the fan on top of the CUP was not working, Mitsubishi figured out the QX141 board was toast. but in the mean time the control was putting a 218 alarm, "Type of chucking operation (inner/outer) is not selected" I addition , in the book it adds "Outer chucking was selected for a collet chuck"
Replaced the fan and QX141 board, everything seem to be operational, off-on, homes, turret rotate, hyd pump, even input the date and time but the 218 alarm will not allow me to turn on the spindle, my assumption.
Ok, go to "machine" and soft key "chuck" and it just blanks out the soft keys. I am not at the shop but as I am going through the parameter book that there was a switch in the electrical cabinet that controlled the chuck "ID/OD", perhaps that got bumped or it failed ?
As I said, the error message started when Max started working with the machine, changing the QX141 board made no difference.
The fan being bad above the boards explained a lot of things, the control, out of nowhere would just shut off, perhaps once every few months. I did not even know there was a fan on top of the rack, for those of you with these machines, the fan is $150 from Mitsubishi, a lot cheaper than a a QX141 board.