Entering parameters in Maho MH800C with 432 control

macona · Jan 30, 2017

So, I am looking at buying an old Maho 800C for work, specifically the one in this thread:
http://www.practicalmachinist.com/v...-mills/trouble-starting-maho-mh-800-c-269533/

It's on to another owner since and It's lost it's memory again. I have the parameters in a ascii text file but I can not for the life of me figure out how to get them in. I think there is a write protect switch active somewhere and I cant find it. There is a spot for one on the side of the machine but that is blanked off and nothing has ever been there. There is a key switch on the console but I am not sure what that is for. There are a set of three toggles below the control rack inside the machine and then one more by itself. But they do not seem to unlock it.

I have been trying to get ahold of the deckel doctor since friday but just get voicemail.

Milacron · Jan 31, 2017

One of the toggles inside the electrical box near all the"ice cube" relays is it...but I forgot how it is labeled. You need Maho Doctor, not Deckel Doctor... Karl in Alabama.....maybe he finally retired ? Regardless, the instructions for this are in one of the manuals you must be missing.

FWIW, you can enter the parameters by hand if you have to... takes about an hour as I recall....a little risky as subject to entering a mistype with so many hand entries, but I have done it many times years ago.

Milacron · Jan 31, 2017

Btw, we both misspoke.... since it's a Maho it's "constants" you want, not "parameters"

Also, to add to the fun... Y axis is Z axis and vice versa but you probably knew that already.

macona · Jan 31, 2017

I did not know that about the axis, this is the first time messing with a deckel/maho.

Yeah, I have entered parameters before on yasnac and fanuc machines. Long and boring. Hoping to avoid that.

You dont have any contact info for Karl do you?

Milacron · Jan 31, 2017

macona said:
I did not know that about the axis, this is the first time messing with a deckel/maho.

Yeah, I have entered parameters before on yasnac and fanuc machines. Long and boring. Hoping to avoid that.

You dont have any contact info for Karl do you?

http://www.practicalmachinist.com/v...iring-selling-off-all-inventory-cheap-278509/

Milacron · Feb 1, 2017

macona said:
I did not know that about the axis, this is the first time messing with a deckel/maho.

Yeah, I have entered parameters before on yasnac and fanuc machines. Long and boring. Hoping to avoid that.

Maho was thinking in terms of their mills as horizontal mills rather than vertical, thus the Z axis confusion. Deckel thought in terms of them as vertical mills, thus no confusion.

Re entering parameters on other machines by hand, yeah but it is easier on a Maho...not so many of them in comparison to most Fanuc machines.

Let us know if Karl's phone numbers still works. I doubt he was able to sell much if any of his hoard of parts as most seemed like they were meant for machines long ago scrapped. The Maho specialist in Germany (forget the company name) should have been interested however.

macona · Feb 1, 2017

I actually got ahold of the deckel doc last night and he told me which switch it was to get the constants unlocked and got all the parameters entered by hand. It seems to work not, well, at least jog. I need to figure out how to MDI on this control so I can actually run some commands.

I saw in some of your other posts about Mahos where you had a new LCD on the control, was that a special LCD? The LCD they put on this machine is not happy, it seems. Ill have to take a pic and post it. Does the Maho have odd scan freqs?

Milacron · Feb 2, 2017

macona said:
I actually got ahold of the deckel doc last night and he told me which switch it was to get the constants unlocked and got all the parameters entered by hand. It seems to work not, well, at least jog. I need to figure out how to MDI on this control so I can actually run some commands.

I saw in some of your other posts about Mahos where you had a new LCD on the control, was that a special LCD? The LCD they put on this machine is not happy, it seems. Ill have to take a pic and post it. Does the Maho have odd scan freqs?

Assuming this Maho is 1980's vintage, the horizontal scan frequency is very low and it takes a special LCD to work. Got mine from a company in Australia....which sounds daunting but it actually arrived quicker than a package from USA west coast would have. Cost about 500 bucks including shipping.

Re MDI....good lord man, do you not even have the program and operations manuals for this thing ?

macona · Feb 2, 2017

Milacron said:
Assuming this Maho is 1980's vintage, the horizontal scan frequency is very low and it takes a special LCD to work. Got mine from a company in Australia....which sounds daunting but it actually arrived quicker than a package from USA west coast would have. Cost about 500 bucks including shipping.

Re MDI....good lord man, do you not even have the program and operations manuals for this thing ?

It's a 1991 model.

I do have the manuals, by the time I got the parameters input it was late and I left all my inspection tools in my other car. I am heading back in a little bit to check it out. Apparently there is a bad prox switch in the tool changer too.

-Jerry

Milacron · Feb 3, 2017

macona said:
It's a 1991 model.

I do have the manuals, by the time I got the parameters input it was late and I left all my inspection tools in my other car. I am heading back in a little bit to check it out. Apparently there is a bad prox switch in the tool changer too.

-Jerry

1991 might be new enough to have a higher horizontal frequency output to the monitor such that some regular LCD computer monitors would work. You need a multimeter (or O scope) that can read frequency to find out what it is outputting exactly. I retrofitted a 1989 Deckel CNC (pix below) with a cheap computer monitor LCD I bought NOS on eBay ($125 as I recall) but even it was lower than normal (for today anyway) horizontal frequency. You HAVE to get the horizontal frequency right or you will see only a blank screen with "signal not found' error.

And of course there is the PITA of fitting a flat screen to a console meant for a convex CRT to consider...in the case of the Deckel Dialog 11 I made a whole new screen mount but incorporated the outer rounded "trim" of the original plastic such that it appeared factory done.

Milacron · Feb 6, 2017

Milacron said:
Let us know if Karl's phone numbers still works.

Curiosity got the better of me and I called....he didn't answer his cell phone but it did eventually go to a voice mail with his voice. Then I called his "office" number and whoever answered the phone said "he's outside workin' on a car..." I said no problem will try later

moonlight machine · Feb 6, 2017

macona said:
So, I am looking at buying an old Maho 800C for work, specifically the one in this thread:
http://www.practicalmachinist.com/v...-mills/trouble-starting-maho-mh-800-c-269533/

It's on to another owner since and It's lost it's memory again. I have the parameters in a ascii text file but I can not for the life of me figure out how to get them in. I think there is a write protect switch active somewhere and I cant find it. There is a spot for one on the side of the machine but that is blanked off and nothing has ever been there. There is a key switch on the console but I am not sure what that is for. There are a set of three toggles below the control rack inside the machine and then one more by itself. But they do not seem to unlock it.

I have been trying to get ahold of the deckel doctor since friday but just get voicemail.

Good to see you posting again, been a year or so since I have seen a post from you.

dmelacom · May 31, 2017

This seems a bit strange but I think I may have purchased this very machine. At any rate, I'm reaching out to see if anyone can help me with a few missing pages of the electrical prints. I've gotten the constants in and hydraulics are up running ( once I reversed the phase) - the after market screen is now working as well. Took a lot of tweaking to get it right. The error is E171 - cabin doors not closed... This is strange as I expect the door switches would be bypassed by the previous owner. Also have two machine errors on the side panel - 37 and 57. the page that points to these faults are also missing. I have all 170 or so pages of the manual, and 3 missing. Go figure it's the very pages I need to fix this machine. LOL.

Any one ever need help on loading constants.

Search

Largest Manufacturing Technology Community on the Web

Search

Entering parameters in Maho MH800C with 432 control

macona

Diamond

Milacron

Administrator

Milacron

Administrator

macona

Diamond

Milacron

Administrator

Milacron

Administrator

macona

Diamond

Milacron

Administrator

macona

Diamond

Milacron

Administrator

Milacron

Administrator

moonlight machine

Diamond

dmelacom

Aluminum

Similar threads