Fuji Electric Frenic Mega Series - Page 358

5.4 Details of Function Codes
5-177
Details of
Function Codes
F codes
E codes
C codes
P03 to P04
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Chapter 5 Function Code
P04 Motor 1 (Auto-tuning)
The inverter automatically measures the motor constants and saves them as the motor parameter. When the
Fuji standard motor is used with the standard method, basically, tuning is not necessary.
There are following three types of auto-tuning. Select appropriate tuning method according to the limiting and
controlling method of the machinery.
Table 5.4-104
P04
Data
Tuning Method Operation
Motor Constant
Objective for Tuning
0 Disable --- ---
1 Stop tuning
Tunes while the motor is
stopped.
Primary resistance %R1 (P07)
Leakage reactance %X (P08)
Rated slip frequency (P12)
%X correction factors 1 and 2 (P53, P54)
2
For V/f control
Rotation tuning
After tuning the motor in a
stopped state, retunes it
running at 50% of the base
frequency.
No-load current (P06)
Primary resistance %R1 (P07)
Leakage reactance %X (P08)
Rated slip frequency (P12)
Magnetic saturation factors 1 to 5 (P16 to P20)
Magnetic saturation extension factors "a" to "c"
(P21 to P23)
%X correction factors 1 and 2 (P53 and P54)
3
For vector control
Rotation tuning
After tuning the motor in a
stopped state, retunes it
running at 50% of the base
frequency twice.
No-load current (P06)
Primary resistance %R1 (P07)
Leakage reactance %X (P08)
Rated slip frequency (P12)
Magnetic saturation factors 1 to 5 (P16 to P20)
Magnetic saturation extension factors "a" to "c"
(P21 to P23)
%X correction factors 1 and 2 (P53, P54)

For details of auto-tuning procedure, see the "FRENIC-MEGA Instruction Manual," "Chapter 4
OPERATION."
In any of the following cases, the motor constants are different from the standard motors.
Therefore, sufficient performance may not be able to be obtained. In that case, execute auto
tuning.
- When the motor to be driven is a non-Fuji motor or a non-standard motor
- When the wire between the inverter and the motor is long (generally, 20 m or longer)
- When a reactor is inserted between the motor and the inverter.
Etc.
 Functions in which the motor parameters affect the running capability
Table 5.4-105
Function Related Function Codes (Representative)
Auto torque boost F37
Output torque monitor F31, F35
Load factor monitor F31, F35
Auto energy saving operation F37
Torque limit F40
Anti-regenerative control H69
Auto search H09
Slip compensation F42