IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
4-14
Auto-Tuning
The IMPULSE•VG+ Series 3 can adapt to all motors manufactured worldwide with its automatic
tuning function. The inverter asks the user for minimal motor information, then guides the user
through a quick simple tuning process. Ideally, perform a standard Auto-Tune with the motor
uncoupled from the load. When the motor cannot be disconnected from the load, perform a static or
non-rotating Auto-Tune.
NOTE: Contact Electromotive Systems service department if an auto-tune can not be performed.
After scrolling through the tuning parameters using the Up Arrow key, depress the RUN key to begin
auto-tuning. During tuning, “Tuning Proceeding” flashes on the digital operator display. When
complete, “Tune Successful”, is displayed. Depress the Menu key to exit auto-tuning mode. Please
refer to the “Fault Display and Corrective Actions at Auto-Tuning” section on page 6-19 if “Tune
Successful” is not displayed.
NOTE: If the STOP key is depressed during tuning, auto-tuning is interrupted and the motor
coasts to a stop. The data changed during tuning returns to its original values.
CAUTION
The brake output is not energized during auto-tune. The brake must be manually released and
unreleased when Auto-Tuning is complete.
Parameter Code Display Description Default Setting
T1-00 Select Motor Selects between motor 1 or 2
(Available only when H1-XX=41
1
T1-01 Tuning Mode Sel Selects Tuning Method 0
0 Standard Tuning
1 Tune - no rotate (first operation should be no load)
2 Term Resistance (used to obtain motor lead resistance)
T1-02 Mtr Rated Power Sets the motor size in HP (note:
KW = Hp x .746)
KVA dependent
T1-03 Rated Voltage Sets motor rated voltage in VAC KVA dependent
T1-04 Rated Current Sets motor rated current in Amps KVA dependent
T1-05 Rated Frequency Sets motor rated frequency in Hertz 60.0 Hz
T1-06 Number of Poles Sets the number of motor poles 4
T1-07 Rated Speed Sets motor rated speed in RPM 1750 RPM
T1-08 PG Pulses/Rev Sets encoder PPR 1024 PPR
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