Fuji Electric FRENIC-ECO, Instruction Manual

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P03
Motor (Rated current)
P03 specifies the rated current of the motor. Enter the rated value shown on the nameplate of the
motor
P04
Motor (Auto-tuning)
This function automatically detects the motor parameters and saves them in the inverter’s
internal memory. Basically, you do not need to perform tuning if you use a Fuji standard motor
with a standard connection with the inverter.
In any of the following cases, you may not obtain the best performance under auto torque boost,
torque calculation monitoring, or auto energy saving operation, by default settings, since the
motor parameters are different from that of Fuji standard motors. In such a case, perform auto
tuning.
• The motor to be driven is made by other manufacturer or is a non-standard motor.
• Cabling between the motor and the inverter is long.
• A reactor is inserted between the motor and the inverter.
For details of auto tuning, refer to Chapter 4, Section 4.1.3 "Preparation before running the
motor for a test -- Setting function code data."
P06
P07
P08
Motor (No-load current)
Motor (%R1)
Motor (%X)
These function codes specify no load current, %R1, and %X. Obtain the appropriate values from
the test report of the motor or by calling the manufacturer of the motor. If you perform auto tuning,
these parameters are automatically set as well.
• No load current: Enter the value obtained from motor manufacturer.
• %R1: Enter the value calculated by the following formula.
(%) 100 ×
) I × 3 ( / V
R1 Cable R1
%R1
+
=
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: Enter the value calculated by the following formula:
(%) 100 ×
) I × 3 ( / V
X Cable XM) (X2 / XM × X2 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, choose the value at the base frequency (F04).