Originally Posted by
Dan2464
Hi guys,
This thread may help others as I go into the details of what I think the settings are and why. See if we all agree before I hook this up. Things I'm not sure about have a question mark in front of the setting. And I know some of the other stuff I might not have right so looking for confirmation from guys that have done this. Thanks to everyone up front.
Unit is a 2hp Marathon motor on a 3hp Huanyang VFD. Motor tag is attached.
First I'm running this as a 220v input to the VFD and I have a new in the box PathPilot computer for the build I'm working on which is converting a 1914 Leblond 1B mill to CNC with a custom built head. This motor is for the spindle drive and will be interfaced with a Mesa 7I76 BOB.
First up should be L1, L2 hooked to R and S input terminals on the VFD with ground going to E. And U,V,W going to the motor.
PD 000 - 0 for parameters unlocked
001- 1 for remote control from 7I76 BOB
002- 1 Freq set by + VI and - ACM input terminals. 0 - 10 volts from 7I76 BOB
? 003- 0 Main Freq. Used to set up multiple speeds. Since PD002 is 1 external control, this should have no effect
004- 60 Base Freq. 60 hertz for this motor
005-120 Max Freq. I want to turn this motor 2x it's standard speed of 1750 which would be 3500 rpm and on a 2.5 to 1 pulley would be max spindle speed of 8750 rpm.
006- 3.0 Intermediate Freq. Sets the lower part of the V/F curve.
007- .5 Min Freq. Sets the start freq of the V/F curve.
008- 230 Max Volts. Max volts of the motor.
009- 15 Intermediate Volts. Sets the lower part of the V/F curve.
010- 8 Minimum volts. Sets the start volts of the V/F curve
011- 6 Freq lower limit. Sets the low operational freq limit. On this 10:1 CT motor that would be 175 rpm which is 6 hertz on the VFD.
014- 4 Accel Time in secs
015- 4 Decel Time in secs
023-1 REV rotation is enabled. FOR and REV terminal to 7I76 BOB along with DCM terminal to ground
024-1 Stop key on front of VFD is not disabled
025- 0 Start from freq
026- 0 DC braking is enabled
027- 6 Start Freq
028- 0 Stop Freq
029- 0 DC braking off at start. Don't need to stop spindle at start as it doesn't windmill.
141- 230 Motor rated volts
142- 6.4 SFA max amps for 230 volt input to motor
143- 4 Number of poles in motor. 1800 rpm motor is 4 poles.
? 144- 1750 RPM of motor at base freq. Should this be 3500 for rpm at max freq????