Good Evening to All of you
I need help but sorry to put it under "Reply to Thread" as i could not find New Thread
Machine details are as Under
HITACHI SEIKI ABIKO
FABRICATION 1987
VA 55 NO. 55158 WITH FANUC SYSTEM 11, TYPE A20B-0076-B501, NUMBER 1610 1985-11
Subject machine was running quite alright till there was a power failure.
After that when machine was switched ON, it came into IPL mode.
Manually loaded all CNC parameters as per hardcopy backup of another Machine Model VA 45
We do not have PC parameter backup that means no details of Timers, Counter, Keep relays, Data etc
We are facing following problems
a) If Mode selector switch is kept at Jog, Reference Return, Handle mode, then Alarm Red LED on operator panel gets ON & as per diagnostics, this is because one bit under D148 is ON & when we refer to details of that bit of D148, it indicates towards problem with Mode Selector switch but under Diagnostics X, we are finding that bits are changing correctly for different modes and also CNC is switching over to Handle, Jog, Reference etc as per selector swithc postion of Mode Selector switch
b) If Mode Selector switch is kept at MDI, memory, Edit etc then no problem that means Alarm Red LED is not getting ON & also CNC is changing to correctly to MDI, Memory, Edit as per the switch postion of Mode Selecot switch
c) We were not able to move axis in Jog then we changed Parameter 1400.7 to 1 then Jog is alright
d) We are not able to reference the axis manually but we are able to reference all the axes with G28 command
We loaded 5600 series parameters for Spidnle also just by referring to Fanuc Manual as there was no backup of this 5600 series
e) Spindle gear was not in engaged position so by pressing the solenoid valve, we could engage the gear & as per ladder, spindle is in hi gear, Lubrication pressure switch feedback & also feedback fo tool clamp & High gear found to be alright & in this condition When we command say M03 S200 or any rpm, like M03 S1200 then spindle starts slowly and stops after say half rotation with Feedhold and Alarm LED & as per diagnostic D, it is due to spindle start check alarm
When spindle starts to rotate we find in Ladder that R 1322 (spindle start) gets ON and stops because R 622 gets OFF
f) we could not search R 622 in ladder
Kindly go through all the points and if any of you have got the complete NC and PC parameters backup, kindly send it to us as it is a very important machine
Please email at maddala.rishikesh@tatamotors.com
Thanks a lot
Best regards,
M. Rishikesh