Magnetek IMPULSE G+ 4 Series User Manual

IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 66
4.4.2 Non-Rotational Auto-Tune (T01-01 = 1)
A non-rotational Auto-Tuning method has been implemented into the IMPULSE
®
•VG+ Series 4 VFD which allows
for Auto-Tuning without decoupling the motor.
This method will require a short movement of the crane subsequent to the non-rotational Auto-Tune process which
allows the VFD to calibrate the Motor Rated Slip and No-Load Current.
The instructions below will provide a step-by-step procedure to complete the non-rotational segment of this Auto-
Tune function:
1. In preparation for the Auto-Tune, the crane should be unloaded with minimal hook attachments. For Traverse
motion, ensure freedom of travel for Step #6.
2. Using the keypad, browse to the “Auto-Tuning” menu.
3. Choose “Tune-No Rotate1” (T01-01 = 1) for the Tuning Mode.
4. Enter the nameplate motor characteristics (T01-02 ~ T01-09) until the “Tuning Ready?” screen is reached.
5. Press the green “RUN” key to start the Auto-Tune. It will take up to a few minutes to complete. During this time,
the current will ramp up and down and a high pitched frequency may be audible coming from the motor; this is
normal. When the Auto-Tune has completed, the keypad display will display an “End Tune Successful”
message. Press the “ESC” key twice to exit.
6. Run the motor to at least 30% of the Rated Frequency (T01-05). For example, if the Rated Frequency is 60 Hz,
the motor must run to at least 18 Hz. In a hoisting motion, the motor must be run in the Up/Raising direction.
NOTE: In hoisting motions, remove any loads or spreader bars.
7. When the short run and adjustments have been completed, the motor will stop, and the keypad will display
“TMDN Tune Complete”. The Auto-Tune is now complete and the VFD is ready for normal operation.
4.4.3 Terminal Resistance Auto-Tune (T01-01 = 2)
This is a non-rotational Auto-Tuning method for the IMPULSE
®
•G+ Series 4 VFD which allows for Auto-Tuning
without decoupling the motor.
This method is recommended for motors configured with the V/f control method when the motor horsepower and
motor rated current are known.
The instructions below will provide a step-by-step procedure to complete the non-rotational segment of this Auto-
Tune function:
1. In preparation for the Auto-Tune, the crane should be unloaded with minimal hook attachments.
2. Using the keypad, browse to the “Auto-Tuning” menu.
3. Choose “Term Resistance” (T01-01 = 2) for the Tuning Mode.
4. Enter the nameplate motor characteristics for Motor Horsepower and Motor Rated Current (T01-02 and T01-
04) until the “Tuning Ready?” screen is reached.
5. Press the green “RUN” key to start the Auto-Tune. It will take up to a few minutes to complete. During this time,
the current will ramp up and down and a high pitched frequency may be audible coming from the motor; this is
normal. When the Auto-Tune has completed, the keypad display will display an “End Tune Successful”
message. Press the “ESC” key twice to exit.

Magnetek IMPULSE G+ 4 Series Specifications

General

Brand	Magnetek
Model	IMPULSE G+ 4 Series
Category	DC Drives
Language	English