Wiring H100 or V70 VFD to GX-12 6-pin spindle control on Elite Masso G3

Hey Andre,

if the spindle obeys to M3/M5 commands on the MDI, then you have successfully set

  • F001 “Control mode” to “1” (External terminal),
    • F044 “X1 (FOR) function” to “2” (Forward)
    • F045 “X2 (REV) function” to “3” (Reverse)

Or did you have to set F044 to “1” (Run) on your VFD?

Regarding speed, to make it obey to the S code, did you set

  • F002 “Frequency setting selection” to “1” (AI 1)?

This will activate analog 0–10 V voltage speed control from the Masso G3 controller inside the VFD, because according to table and diagram above, the analog speed control from Masso is wired to the “AI 1” pin of the VFD.

You will also have to set

  • F070 “Input channel selection for analog quantity” to “0” (0–10 V)
  • F072 “High-end frequency of analog frequency” to the max. rpm value according to your spindle manual (often 400 Hz)?
  • F073 “Low-end frequency of analog frequency” to the min. rpm value according to your spindle manual (often 100 Hz)?

These usually are the identical settings you have already set in F005 (Maximum Operating Frequency) and F007 (Minimum Operating Frequency)

To set the spindle to run at 6000 rpm, you would have to enter into the MDI:

S6000 M3

Note that on Masso G3, there must not be the tool number for the laser selected.

:warning: When taking a spindle into operation, be sure to follow the spindle warm-up instructions of your spindle manufacturer.

I hope you already did the mandatory things first, which means,

Programming the VFD (here: H100/V70) according to your specific spindle!

In your spindle’s manual, you should find:

F140 to the Rated Motor Power,
F141 to the Rated Motor Voltage,
F142 to the Rated Motor Current,

You need also to find out the number of magnetic poles (otherwise, with a wrong setting, your spindle may run at half or double speed):

F143 to the Number of Magnetic Poles of the Motor (usually 2 if you bought a 24,000 rpm spindle), see here for calculation),

F144 to the Rated speed it would be at 50 Hz (here: 1440, otherwise your spindle may not run at the full available speed range)

F005 (Maximum Operating Frequency) to the max. rpm value according to your spindle manual (often 400 Hz for 24,000 rpm with 2 magnetic poles)
F007 (Minimum Operating Frequency) to the min. rpm value according to your spindle manual (often 100 Hz for 6,000 rpm with 2 magnetic poles)

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