Vfd Setup; Standard Setup - Mitsubishi D700 VFD Installation Manual

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VFD Setup

To setup your VFD you will need to know your spindle motor's frequency. It is also helpful to know the
maximum current that your spindle motor should ever draw. You should be able to find both values on the
motor's nameplate.
If you cannot locate the motor's frequency, the name plate should tell you how many poles there are on the
motor. Using the motor's maximum RPM and its number of poles, you can calculate the frequency with the
formula below.
You are now ready to setup your VFD.

Standard Setup

Your VFD comes pre-programmed from MachMotion. The following parameters should never be changed.
Parameter #
73
74
You may, however, have to change the following parameters.
Parameter #
1 Maximum Frequency (If less than 120 Hz)
2
3
7
8
9
18 Maximum Frequency (If greater than 120 Hz)
72
125
All the frequency parameters (1 or 18, 3, and 125) will be the same value unless your maximum frequency is
different from the frequency on the spindle motor's nameplate. Only set parameter 1 if your max spindle
frequency is less than 120 Hz. Only set parameter 18 if your max spindle frequency is greater than 120Hz.
If your spindle motor does not mention a minimum frequency, leave parameter 2 at zero. Also, if you cannot
find your max motor current, just set parameter 9 to the rated VFD current.
Frequency = Max RPM * Number of Poles / 120
Description
Analog Input Selection
Input Filter Constant
Description
Minimum Frequency
Frequency
Acceleration Time
Deceleration Time
Max Motor Current
PWM Frequency Selection
Maximum Frequency
Default
10
6
Standard
Max Motor Frequency
0
Motor Frequency
1-3
1-3
Rated VFD Current
Max Motor Frequency
10
Max Motor Frequency
Range
0-120Hz
0-120Hz
0-400Hz
0-3600 Sec
0-3600 Sec
0-500
120-400Hz
0-15
0-400Hz