Retrofitting a 1986 Maho MH400E

Hello Mark

Q1 after your question i noticed that your power schematic on page 1 of this thread is a little different to the 700C. There have to be made some changes because your brake for toggeling is engaged by the triangle Relais. Can you tell me what kind of device 1K6 is and what its contacts do?

Q2 I let the Heidenhain Panel stay in the Machine and it has these buttons for manual milling, simple set the auto input fix to true.

Q3 No, this has to come out from the NC Programm, following the standart way is that you can not send Axis movement commands from hal,comp or ladder. But i never note about speed changes while the tool is in the material, normaly this comes with an toolchange or a new chapter of your Cam Application.

Thanks for your help Dominik.

db1981 wrote:

Q1 after your question i noticed that your power schematic on page 1 of this thread is a little different to the 700C. There have to be made some changes because your brake for toggeling is engaged by the triangle Relais. Can you tell me what kind of device 1K6 is and what its contacts do?

-available gear states = position count [line114]
-you have to set the rpms for the singles states (so much as position count) [see line 73-79]
-the positions for the single gear states are defined in the Extra_Setup Part line 177 ff.

Q1 1K6 is a time delay relay. It is set for 7.5 seconds.

I've expanded the 7 to the 18 gear ratios of the MH400E, entered the resulting speeds, expanded the single gear states list, entered the MH400 States, and expanded the data.pos[N].max_rpm = max_rpm_N+1 list.



Q2 I wasn't sure what you meant by auto input fix.

Thanks clarifying that you cant do axis motion from a comp, hal or ladder. Is there any standard behavior associated with spindle speed which will need to be deactivated when this COMP is added?

Mark

Is the 1K6 Contact wired to an PLC Input?

I then will do some changes for the brake part soon.

I have an hal config for testing/setup the single stages step by step, i will comment it and then post it.


sorry for my writing, but my native language is C/C#/Assembler/Jave/Python etc. then german and unlucky at least english.....

Thanks for looking at that. The MH400E has no PLC.The 1K6 relay controls the 1K7 relay which signals that the spindel is stopped to the NC controller. 1K7 is also the inhibit on the tool changer.


I live in Wien. I can also speak german if you prefer, although it is probably better for the forum to keep this conversation in english.
Mark

The intern Philips PLC (gearchange, safty etc.) ...

But now this signal is wired to linuxcnc?

Yes, through the Mesa 7i84.

Still too cold in the basement. I sprayed one coat of green paint ont he control housing, but it will probably take all week to dry.
Mark

Faces and thread ready for the adapter, can t wait to test vector mode.

Nice workmanship John. I am laid up with bronchitis, so I haven't been in the basement. Look forward to spring and getting back to the Maho.
Mark

Finally got the last coat of paint on the new control housing, and started assembling it.





Mark