Chapter 4: AC Drive Parameters
Page 4–35
DURApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Type Hex Addr Dec Addr
P0.05 Motor Auto Tune
R/W 0005 40006
Range/Units (Format: 16-bit binary) Default
0: Disable
1: Measure motor in dynamic status (motor spinning)
2: Measure motor in static status (motor not spinning)
0
Measured values will be written to (P0.06: Motor 1 Rs and P0.07: Motor 1 No-Load Current for
motor #1) or (P0.15: Motor 2 Rs and P0.16: Motor 2 No-Load Current for motor #2) automatically by
the GS4 drive.
NO TE: When auto-tuning 2 motors, the user needs to set a multi-function input terminal to
setting 14 for motor selection or change P0.10 for motor 1/motor 2 selection.
NO TE: The rated speed (P0.03) can’t be larger than or equal to 120xF/P; [where F = rated
frequency P0.02 or P0.13; P = number of motor poles P0.09 or P0.18].
Auto-Tuning (Dynamic):
1)
Make sure that the motor wiring is correct�
2)
Make sure that you can start and stop the drive (e�g� using the Run key if in Local Mode, or with
digital inputs if using terminals), and that an E-stop is wired�
3)
Make sure that the parameter values in the table below are correct:
Parameter Motor 1 Motor 2
Maximum Output Voltage P0�00 P0�11
Motor Rated Current P0�01 P0�12
Motor Base Frequency P0�02 P0�13
Motor Rated RPM P0�03 P0�14
Motor Rated Horsepower P0�08 P0�17
Motor Pole Numbers P0�09 P0�18
4)
Before dynamic auto-tuning, make sure the motor output shaft is not connected to a load� If
the motor cannot be separated from the load, static auto-tuning (P0�05=1) is recommended�
5)
Set P0�05=1 to select dynamic auto-tuning� Trigger the Run command; either keypad <RUN>
or external terminals depending on how you have P3�00 and P3�01 configured�
WARNING: Within a few seconds, the motor shaft will begin to turn� An “Auto Tuning” warning
will begin to flash on the keypad display, and will continue until auto tuning is complete� If the
motor has to be stopped during Auto Tuning, an “Auto Tune Error” will be generated� To restart
Auto Tuning, clear the error and restart this procedure again�
6)
When auto-tuning is complete, P0�05 will default back to 0, and Motor1 parameters (P0�06 and
P0�07) and/or Motor2 parameters (P0�15 and P0�16) will be written to the drive�
If the motor is statically auto-tuned (P0�05=2), the GS4 drive will NOT measure no-load current�
It is the responsibility of the user to obtain the motor no-load current value and manually enter
the value in P0�07 for Motor1 and P0�16 for Motor2� Motor no-load current may be available on
the motor nameplate or in the motor manufacturer’s performance specifications�
Type Hex Addr Dec Addr
P0.06 Motor 1 Resistance
R/W 0006 40007
Range/Units (Format: 16-bit unsigned) Default
0~65.535Ω
0
Motor Auto Detection (P0.05) will set this parameter value. Before using Motor Auto Detection, set
P0.10 to Motor 1. Motor 1 Rs (P0.06) value may be entered manually. If this information is not on
the motor nameplate, consult the manufacturer specifications.
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