Fuji Electric FRENIC-HVAC User Manual page 449

P05 Motor 1 (Online tuning)
Long run under "Dynamic torque vector control" or "Slip compensation control" causes
motor temperature change, varying the motor parameters. This changes the motor speed
compensation amount, resulting in motor speed deviation from the initial rpm.
Enabling online tuning (P05 = 1) identifies motor parameters covering the motor temperature
change to decrease the motor speed fluctuation.
To perform online tuning enabled with P05, set P04 (Auto-tuning) to "2."
Online tuning can be performed only when F42 = 1 (Dynamic torque vector control)
or when F42 = 2 (V/f control with slip compensation active) and F37 = 2 or 5 (Auto
torque boost).
P06 to P08 Motor 1 (No-load current, %R1 and %X)
P06 through P08 specify no-load current, %R1 and %X, respectively. Obtain the appropriate
values from the test report of the motor or by calling the motor manufacturer.
Performing auto-tuning automatically sets these parameters.
 No-load current (P06)
Enter the value obtained from the motor manufacturer.
 %R1 (P07)
Enter the value calculated by the following expression.
R1
%R1 =
V
where,
R1: Primary resistance of the motor (Ω)
Cable R1: Resistance of the output cable (Ω)
V: Rated voltage of the motor (V)
I: Rated current of the motor (A)
 %X (P08)
Enter the value calculated by the following expression.
X1
%X =
where,
X1: Primary leakage reactance of the motor (Ω)
X2: Secondary leakage reactance of the motor (converted to primary) (Ω)
XM: Exciting reactance of the motor (Ω)
Cable X: Reactance of the output cable (Ω)
V: Rated voltage of the motor (V)
I: Rated current of the motor (A)
For reactance, use the value at the base frequency (F04).
+ Cable R1
× 100 (%)
( / 3 × ) I
+ X2 × XM / (X2 + XM) +
V ( / 3 × ) I
6-139
6.3 Details of Function Codes
Cable X
× 100 (%)