Newbie- Mazak barfeeder problem

[kennyp]

HI im new to mazak machines my workplace just bought a new mazak quickturn 200 II lathe with a multifeed barfeeder.

Tonights the first time ive used the barfeeder,im familiar with barfeeders on other types of machine but this ones not playing ball.

When the lathe gets the end of bar signal it jumps into the 9999 program but instead of spitting out the billet and loading a new bar it alarms out with ,250 spindle alarm.

This is the 9999 prog

g18
m05
207
48
206
g98
69
49
68
207

return

Does push switch or component switch mean anything to anyone? like i said im new to mazaks but i think this may be the problem



Any help would be great thanks

[girishdk]

Hi,

Something seems to be wrong with the sequence. Spindle may be getting overloaded.
Please check the alarm on the Spindle Drive.
Please check if the bar is pushing when collet is not open.

Regards

[jimiscnc]

In addition to a may not be entirely correct top cut program, there is also the issue of executing M206 and M207 chuck open/close by program.

PLC parameter RB01.1 is the switch that allows M206/M207 to be used or not used. If set to "not used" (RB01.1=0) then the control cannot execute these commands and an alarm is generated. (parameters are either "instant" or need a reboot to be effective)


This is an example of a proven TOP CUT program for a late model LNS bar loader on a fusion control. The correct M codes for matrix have to be put in , in your case. It's here just to show the flow of program code.

O00009999

G53.5
G98G0G28U0W0
M5
M9
M19
M48
M6
M565(also M69, depends on plc settings)
M7
G4X2.
M49
G99G0G28U0W0

T1010
G50S2500
(Z0 + .157 BLADE WIDTH +.04 FACE STOCK)
G0X1.1Z.1970M8
M169
G96S400M3
G01X.3F.001
G97S500X.2
X-.03
G0X1.1M9
G28U0W0M5
P7699M198

FINALLY, if the b/f was supplied by Mazak, they use what they call an "E-bill" which is an instruction sheet for interfacing a b/f to a Mazak. It is helpful for parameter settings and plc parameter settings, but it isn't very good for programming templates!

Mazak Techs usually leave this info, in the form of printed stapled sheets, in the electrical cabinet door, along with final inspection reports, chip conveyor manuals, and elec wiring diagrams.

-90% jimmy

PS - just checked a typical Matrix lathe OP manual for Alarm 250. This alarm would be generated if you manually open the chuck and then try to start the spindle by program or manual operation. I'm pretty sure there's about 4 or 5 other conditions that would also cause your alarm. Parameter RB01.1 set to "0" would also cause this alarm.

Boy, I hope I got this one right!