CNCzone.com-The Largest Machinist Community on the net!



Home Page Mark Forums Read Today's Posts My Replies Classifieds Reviews Photo Gallery Web Links Share Files Advertise With Us Ad List
Go Back   CNCzone.com-The Largest Machinist Community on the net! > MetalWorking Machines > Haas Mills


Haas Mills Discuss Haas machinery here!


This forum is sponsored by:

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Ban this user!
Old 12-18-2009, 05:17 PM
 
Join Date: Jun 2009
Location: US
Posts: 13
motorway is on a distinguished road
161 Error

We have a 94 VF-0 with brushed servos, there is currently an "x-axis over current or drive fault" alarm
We put in a new servo driver card along with a new wiring harness to the motor.
Same alarm..
I switched the X and Y wire harness plugs on the side of the machine.
Same alarm..
If it was a motor problem the error should have went the Y axis, right?
I checked the voltage on the servo boards, they are all getting 167V

I dont know what to check next?
Reply With Quote

  #2   Ban this user!
Old 12-18-2009, 06:52 PM
 
Join Date: May 2007
Location: canada
Posts: 26
pants is on a distinguished road

is it happening on rapid moves only?
If so check servo regen resistance (plug is on servo distribution card). Also check the servo distribution board is routing the voltage to the regen when braking.
Reply With Quote

  #3   Ban this user!
Old 12-18-2009, 07:00 PM
 
Join Date: May 2007
Location: canada
Posts: 26
pants is on a distinguished road

i think the regen should be 25ohms
Reply With Quote

  #4   Ban this user!
Old 12-18-2009, 09:00 PM
 
Join Date: Jun 2009
Location: US
Posts: 13
motorway is on a distinguished road

The machine always turns on with this alarm, along with "102 all servos off" alarm, which i guess automatically comes on with any axis alarm.

Any ideas?
Reply With Quote

  #5   Ban this user!
Old 12-19-2009, 04:30 PM
 
Join Date: Oct 2009
Location: Europe
Posts: 190
Haas__man is on a distinguished road
Overcurrent alarm

motorway,
Just wondering, where did you get the new drive card from? Are you certain that its a good part?
Here's what I would do next.
Put all cables back where they were - x-x y-y etc
now disable the x axis
to do this turn off setting 7 (par lock)
press emergency stop
press parameter button once
press the number 1
then cursor down
now you should see parameter number one on tthe CRT which consists of two columns of discriptions and numbers
about three down on the left side should be one called 'disabled'
it will have a zero next to it.
use the cursor to the right key to move the cursor down the list to 'disabled'
type a 1 then write/enter
if you go to the osition screen you should now see that the x-axis has gone.
Now you can make sure that the y axis and z axis still work ok.

Have you checked the x motor to make sure it is good?
if you havn't I can tell you how - you will need a multimeter.

If you have checked the x motor and its good, then you could now plug the x motor into the y axis drive on outside of cabinet and see if y axis drive can run x motor. If possible you should put x axis to centre of travel before doing this so you don't bump it into the end of the axis when you try it.

Let me know what you find and i'll see if i can help
Reply With Quote

Sponsored Links
  #6  
Old 12-19-2009, 09:18 PM
HuFlungDung's Avatar
Moderator
 
Join Date: Mar 2003
Location: Canada
Posts: 4,825
HuFlungDung is on a distinguished road

From my own experience, but on a 96 Haas with brushless drives, there is a small power supply that feeds into the servo amplifiers which are all daisy chained together. I noticed that this fed first in the A amp, then Z then X and Y. Sometimes I'd get an alarm that the Z axis was overheat, unless I was using the rotary, then the alarm would tell me the A axis was overheat. A simple reset fixed this for exactly as long as until such a time as it wouldn't fix it any longer, then I had to go back there and look

So that small power supply did finally calve permanently but its failure was the cause of the alarms which really had nothing to do with overheating of anything. It should be fairly easy to probe it to see if its got any voltage output, if your machine is similar.
__________________
First you get good, then you get fast. Then grouchiness sets in.

(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Reply With Quote

  #7   Ban this user!
Old 12-20-2009, 11:56 AM
 
Join Date: Jun 2009
Location: US
Posts: 13
motorway is on a distinguished road

I disabled the X axis like you said, Y and Z worked fine.
I have not checked the motor, but i did swap the X and Y cables on the side of the cabinet. I could control the X motor with the Y drive.
So that eliminates the motor?

There is a power supply on the servo distribution board, which is the next board up the line from the driver boards.
Reply With Quote

  #8   Ban this user!
Old 12-20-2009, 02:55 PM
 
Join Date: Oct 2009
Location: Europe
Posts: 190
Haas__man is on a distinguished road

Motorway
You are correct, it seems to me that if you can control the x motor with the y card then the motor is good. You never said where you got the new drive card from or if you know that it is good? If it is one that you have bought or already had, then it could be the wrong type. There are a few different types of these drive cards and you can't mix them up. You should find a 'rev' version printed on the card. It is probably a D or a F. Either is fine as long as you have all the same on X Y Z A. Also the A axis card is different to X Y Z and cannot be interchanged.

You could now swap the x and y drive cards over. (re-enable x axis first and put all cabling back as it was)
You might find that the new one is faulty? I.E after swapping x and y cards the fault would swap to y.

The power supply that HuFlungDung mentions is only on the brushless versions and is not on your machine.

Let me know what you find
Reply With Quote

  #9   Ban this user!
Old 12-26-2009, 08:55 PM
 
Join Date: Jun 2009
Location: US
Posts: 13
motorway is on a distinguished road

Sorry about the delay. The board came from our haas dealer, the X, Y, and Z boards are all Rev. B
I swapped the X and Y cards, still have "X axis over current or drive fault"
I dont know what to check next

Thanks for all the help
Reply With Quote

  #10   Ban this user!
Old 12-26-2009, 09:11 PM
 
Join Date: Jul 2005
Location: Canada
Posts: 11,565
Geof will become famous soon enough

Have you checked the brushes and cleaned all the carbon dust out around the commutator; brushed motors can sometimes have leakage current shorting through the dust worn off the brushes.
__________________
An open mind is a virtue...so long as all the common sense has not leaked out.
Reply With Quote

Sponsored Links
  #11   Ban this user!
Old 12-26-2009, 09:29 PM
 
Join Date: Jun 2009
Location: US
Posts: 13
motorway is on a distinguished road

Originally Posted by Geof View Post
Have you checked the brushes and cleaned all the carbon dust out around the commutator; brushed motors can sometimes have leakage current shorting through the dust worn off the brushes.
The X motor has been cleaned and has new brushes
Reply With Quote

  #12   Ban this user!
Old 12-27-2009, 05:52 AM
 
Join Date: Oct 2009
Location: Europe
Posts: 190
Haas__man is on a distinguished road
x-axis over current or drive fault

OK,
So we swapped the motors and the fault stayed on x axis, because we swapped them on the outside of cabinet we have also checked out the motor cables.
we swapped the drive cards and the fault stayed on x axis.
so motor is not faulty, drive card not faulty, cable not faulty.

There are onlt two pcbs left that can be causing your problem- the servo distribution board which is located just to the right of the drive cards
or the motif pcb which is one of the boards in the processor stack at top left of cabinet.

we'll check the motif pcb first
Power machine off
remove the cover at top left of cabinet
top board should be motif pcb but not 100% certain - boards were swapped around at this age of machine.
Motif pcb should have lots of plugs all around the board and should be labelled up X Y Z and A at left side and right side.
Processor has a battery at top right and a couple of ribbon cables
video pcb doesn't have many plugs at all - maybe 4-6 plugs in total.
You should not disconect the processor from the machine. doing this could erase all information on processor board - this would be bad. If the motif pcb is the top board then we can proceed with checking. If motif is not top pcb, then you should leave it.
If motif is top board :
Locate X and Y plugs at left side of PCB and swap them over
Locate X and Y plugs at right side of PCB and swap them over.
Reconnect ground cables to cover mount (the green wires you disconnected when removing cover)

Turn on machine.
Now x and y axes have been swapped over
when you command x to move, the y should move
when you command y to move, the x should move
if you still get x axis alarm then the motif pcb is faulty
if you get y axis fault now then it is very likely that servo dist pcb is faulty.

Let me know what happens.
Reply With Quote

Reply




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
tl-2 program integrity error and program data error alarm #'s 212 250 need help CNChelp Haas Mills 12 03-14-2010 08:19 PM
Need Help!- Matsuura Mc500v seq error/magazine error mc500v General Metal Working Machines 10 01-08-2010 01:35 PM
Need Help!- Error 414 Z axis error detect- servo alarm andywids Fanuc 0 07-09-2009 10:33 AM
Need Help!- Error 414 Z-axis error detect servo alarm andywids General Metal Working Machines 1 07-09-2009 09:56 AM
OM-A ROM PARITY ERROR "NOT RAM ERROR" offroadxx Fanuc 9 05-07-2008 08:15 PM




All times are GMT -5. The time now is 08:35 PM.





Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2012, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO
Template-Modifications by TMS

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361