Karl_T
Cast Iron
- Joined
- Jun 13, 2008
- Location
- Dassel,MN,USA
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That shouldn't make any difference.make sure variable speed knob is not on zero which would be all the way CCW. put it in the middle somewhere. its the knob on the bottom left front of headstock
So that machine won't start with the knob set to minimum? That doesn't seem right. Mine doesn't go all the way to zero; about 8 RPM is the bottom end of the speed range. Maybe his wiper hits a dead spot at the end of travel and isn't applying voltage to the generator's field?
Cal
An M/G drive machine not starting with the speed control knob set to minimum is a new one on me. The next time that you're over there, see what's going on with the generator's field voltage, GF2 to E2.
Cal
It looks as if your DC control panel has been modified at some point. The three resistors at the top are not in the normal location.
The first thing to check is to read the DC voltage between terminals E1 and E2 at the bottom of the DC control panel. Check the metal tags on the wires to make sure that you're on the right terminals. It's easy to get on the wrong row. You should be seeing about 115 VDC between E1 and E2.
Cal
It sounds like your exciter has lost most of it's residual magnetism. That sometimes happens when the sit for a while. You may need to flash the exciter. See this thread:Cal...
Third row starts C1 then C2
I get 6 volts DC across E1 and E2.
It sounds like your exciter has lost most of it's residual magnetism. That sometimes happens when the sit for a while. You may need to flash the exciter. See this thread:Cal
Yep, finding electrical help on a 10EE is impossible in my location. That is why I ripped the DC drive out on my other 10EE. On the old one, the DC drive looked BAD.
On this one all the components look to be clean and in nice condition, especially the DC motor and backgear. Does this motor and drive have any significant value?
Looks like I am back to plan A - install 10hp 8 pole 3 phase motor and VFD drive - no backgear.
10EE drive VFD no backgear
Found the motor for $1500
10 hp electric motor 284t 3 phase 900 rpm severe duty PE284T-10-8C 192999004463 | eBay
VFD will be about $500. there will be other bits and pieces that will likely be another $500.
I spent several hours today looking for an all new DC drive - no joy. I can see this DC motor has been rebuilt. if a drop in single phase DC drive is made, I'd look at that route.
Got plenty of time to think before acting here, this is not a rush job.
Yep, finding electrical help on a 10EE is impossible in my location. That is why I ripped the DC drive out on my other 10EE. On the old one, the DC drive looked BAD.
On this one all the components look to be clean and in nice condition, especially the DC motor and backgear. Does this motor and drive have any significant value?
Looks like I am back to plan A - install 10hp 8 pole 3 phase motor and VFD drive - no backgear.
10EE drive VFD no backgear
Found the motor for $1500
10 hp electric motor 284t 3 phase 900 rpm severe duty PE284T-10-8C 192999004463 | eBay
VFD will be about $500. there will be other bits and pieces that will likely be another $500.
I spent several hours today looking for an all new DC drive - no joy. I can see this DC motor has been rebuilt. if a drop in single phase DC drive is made, I'd look at that route.
Got plenty of time to think before acting here, this is not a rush job.
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