Mac007
Aluminum
- Joined
- Jun 7, 2009
- Location
- Kentucky USA
Need Suggestions on what to Check on my 1969 10EE:
The Spindle/Motor Drive Stutters/Jerks/Pulses from 0 - 1,400 RPM after that it runs smooth.
I have replaced all the Module Diodes with new Modern ones.
I have tried locking out the QSD contact, no change.
My Tube Filament Voltage is perfect at 2.5volts.
If I set the RPM at higher RPM’s and stop/start the spindle it smoothly accelerates to the set RPM, no issue.
Machine is a Factory Badged 460 volt. It is powered by 220Volts single phase connected to a Step Up Transformer which is providing 468volts.
Any Suggestions on what to check would be appreciated.
Kind Regards, Ken
The Spindle/Motor Drive Stutters/Jerks/Pulses from 0 - 1,400 RPM after that it runs smooth.
I have replaced all the Module Diodes with new Modern ones.
I have tried locking out the QSD contact, no change.
My Tube Filament Voltage is perfect at 2.5volts.
If I set the RPM at higher RPM’s and stop/start the spindle it smoothly accelerates to the set RPM, no issue.
Machine is a Factory Badged 460 volt. It is powered by 220Volts single phase connected to a Step Up Transformer which is providing 468volts.
Any Suggestions on what to check would be appreciated.
Kind Regards, Ken