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 > Industrial Hobbies (Support forum)


Industrial Hobbies (Support forum) Discuss Industrial Hobbies Milling machines and get direct support here.



This forum is sponsored by:

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Ban this user!
Old 04-06-2006, 05:15 PM
 
Join Date: Feb 2006
Location: Canada
Posts: 17
BEDFORD is on a distinguished road
Help with selector switch wiring issue (***actually a motor issue***)

Well We're blowing breakers after the motor (original motor with a properly rated and wired plug) runs for around 10 seconds and it doesn't quite sound right (yes there is oil in the head). The motor had previously been run with no problems. I had to disconnect the forward reverse selector switch to put it inside a sealed box.

My wiring was:.....11-U1(blue)....9-U2(red)...........10-R(white)....12-S(black)
.............................................5-Z2(orange)
.............................................1-V1(brown)
With yellow and green to ground.
(outside contacts are on the bottom with the selector facing forwards and contact screws facing up).

Have I made a mistake in my wiring diagram or is this something else? Thanks in advance for the help.
James

Edit: Well after futher research (pictures on IH site) I've found that the left side is fine. That cuts it down to either white (10-R) or black (12-S) on the right side should be on top. I'd rather not just guess. If anyone can pull the cover off and look or already knows that'd be great.

Last edited by BEDFORD; 04-07-2006 at 07:06 PM.
Tweet this Post!Share on Facebook
Reply With Quote

  #2   Ban this user!
Old 04-07-2006, 11:20 AM
 
Join Date: Feb 2006
Location: Canada
Posts: 17
BEDFORD is on a distinguished road
Can anyone just quickly pop the cover off of the motor selector switch and see if the top wires is black or white? I'd rather not have to make an educated guess on this.
Thanks
James
Edit: Well I called Aaron and left a message. I hope that this is as simple as a wiring issue.

Last edited by BEDFORD; 04-07-2006 at 12:10 PM.
Tweet this Post!Share on Facebook
Reply With Quote

  #3   Ban this user!
Old 04-07-2006, 12:25 PM
 
Join Date: Jan 2005
Location: USA
Posts: 126
KEYTEEM is on a distinguished road
WHITE AND BLACK from the power source(230v), is what was connected
to my switch ,, as your looking at the switch from the top looking down
with the knob closest to you,,,
11 9 10 12
7 5 6 8
3 1 2 4
is what was on my switch, as your looking down on the switch you only
can see the top rows of terminals, i assume these would be
numbers 1 2 5 6 9 10/ the others being the bottom row of terminals/
3 4 7 8 11 12 ...
my switch had white , (from the 230v source), and black on
10 and 12 .
I am at work right now and can't remember if white or black was
on the top(10) or bottom(12). i have this info at home and will send it if needed
Tweet this Post!Share on Facebook
Reply With Quote

  #4   Ban this user!
Old 04-07-2006, 12:35 PM
 
Join Date: Jul 2004
Location: USA
Posts: 96
mcarvey is on a distinguished road
Buy me a Beer?
On my machine the top wire is black, and I havent' had any problems. I've attached some pictures of the switch- hopefully it will help.

-Matt
Attached Thumbnails
Click image for larger version

Name:	IH_switch2.JPG‎
Views:	111
Size:	48.2 KB
ID:	16545   Click image for larger version

Name:	IH_switch.JPG‎
Views:	115
Size:	74.6 KB
ID:	16546  
Tweet this Post!Share on Facebook
Reply With Quote

  #5   Ban this user!
Old 04-07-2006, 02:16 PM
 
Join Date: Feb 2006
Location: Canada
Posts: 17
BEDFORD is on a distinguished road
Thanks for the help Matt and Keyteem. I find it interesting that our switches are the same but are actually a mirror image. The wiring and jumpers are the same but on opposite sides.

We bypassed the switch and tried running the motor just loose (not attached to gearbox) and it's drawing a very high current and really not sounding right. It's still blowing the breaker.

It appears we are having a motor issue. The wall socket seems to be putting out just over 200V but I don't think that the drop in voltage would be enough to cause that much of a rise in current. We are running two 15 amp breakers and the motor should not be pulling more than 30 amps from what I know. On start-up it should draw more than the motor is rated but it's taking a while to blow the breaker so it seems as though the start-up current spike isn't at fault.

Any ideas?
James

Last edited by BEDFORD; 04-07-2006 at 02:33 PM.
Tweet this Post!Share on Facebook
Reply With Quote

Sponsored Links
  #6   Ban this user!
Old 04-07-2006, 03:58 PM
 
Join Date: Jun 2005
Location: USA
Age: 33
Posts: 916
Runner4404spd is on a distinguished road
it does sound like a bad motor. or a misalignment in the gears. take the motor off the head and try it without the gear box attached. if it still blows the breaker its the motor.
Tweet this Post!Share on Facebook
Reply With Quote

  #7  
Old 04-07-2006, 04:11 PM
Al_The_Man's Avatar
Community Moderator
 
Join Date: Dec 2003
Location: Canada
Posts: 15,706
Al_The_Man is on a distinguished road
Buy me a Beer?
Is this an AC capacitor start motor on this?
If so it sounds like the centrifugal switch is not operating properly, if it stays open permanently, it usually will not go into run, if it shorts together, then the start windings are in all the time and causes high current, if this is the problem, and you haven't already burnt the start windings, the switch can be replace by taking the end bell off of the motor.
Al.
__________________
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
Tweet this Post!Share on Facebook
Reply With Quote

  #8   Ban this user!
Old 04-07-2006, 04:19 PM
 
Join Date: Feb 2006
Location: Canada
Posts: 17
BEDFORD is on a distinguished road
Thanks for the help guys. Yeah the motor is still blowing the breaker even when it is not attached to the gear box and is running free. We're taking it over to a motor rewinding shop now. It was a puzzling problem as we had run teh motor before and the only thing that had changed was the switch being disconnected and put in a new housing.

We're all thinking along the same lines with regard to the start windings causing the high current because the centrifugal switch is not operating properly.
James
Tweet this Post!Share on Facebook
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





All times are GMT -5. The time now is 08:50 AM.





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