J Henricksen
Stainless
- Joined
- Sep 19, 2003
- Location
- Roscoe, Illinois
EE13421, Was working last Saturday, machinist came in to run it Tuesday, and it won't start spindle. Motor generator starts, exciter only puts out 12 V. (E1- E2)
Resistance E 1 / E2 = 26 Ohm
E1 / gen E2 = 610
Insulation check as no reading, OL on my Fluke 75
Shunt resistor slider to far end is @ 210 Ohm
Generator E2 to exciter E3 is also 210 Ohm
I tried the battery jump with a new 9 v battery and diode. I could only get 40 V max.
I tried flashing the exciter. Push button and 2 amp fuse between E1 ans E2
The fuse blows immediately with a nice bright flash and E! and E2 only show 12.4 v. I did this three times with no improvement.
E2, generator to E3 exciter @ 210 Ohm, as is the E2 to slider
We previously had a problem with the anti plugging coil and points not releasing. This was the first thing we checked. The points looked clean and they are closed with the power off.
I dont know of any more info or checks . Can anyone make sense of what I've checked and offer suggestions on what next? Take the exciter to a motor shop?
Resistance E 1 / E2 = 26 Ohm
E1 / gen E2 = 610
Insulation check as no reading, OL on my Fluke 75
Shunt resistor slider to far end is @ 210 Ohm
Generator E2 to exciter E3 is also 210 Ohm
I tried the battery jump with a new 9 v battery and diode. I could only get 40 V max.
I tried flashing the exciter. Push button and 2 amp fuse between E1 ans E2
The fuse blows immediately with a nice bright flash and E! and E2 only show 12.4 v. I did this three times with no improvement.
E2, generator to E3 exciter @ 210 Ohm, as is the E2 to slider
We previously had a problem with the anti plugging coil and points not releasing. This was the first thing we checked. The points looked clean and they are closed with the power off.
I dont know of any more info or checks . Can anyone make sense of what I've checked and offer suggestions on what next? Take the exciter to a motor shop?