Fuji Electric FVR-E11S-7EN

5-29
P: Motor parameters
P01
Number of motor 1 poles
◆ This parameter is the number of poles of driven
motor 1. Write a value to display correct motor
speeds (synchronized speeds) at the LED.
Setting range: 2, 4, 6, 8, 10, 12 or 14
P02 Motor 1 (Capacity)
◆ A standard applicable motor capacity is set
before shipment from the factory. Change the
setting to drive a motor rated at other than the
standard applicable motor capacity.
Setting range: 0.01 to 5.50 kW(3.7kW or smaller)
0.01 to 11.00kW (5.5,7.5kW)
Set the standard applicable motor capacity
specified in section 9-1 "Standard
Specifications". The setting range should be
between the rank higher by one rank or lower by
two ranks from the standard applicable motor
capacity. If the range is exceeded, accurate
control may not be possible. If a value between
the standard applicable motor capacity and the
capacity of another rank is set, the data of the
lower capacity is automatically written for the
data of the related functions.
◆ After the setting of this function is changed, the
settings of the following related functions
change to the data for the Fuji's three-phase
standard motor.
P03 "Motor 1 (Rated current)"
P06 "Motor 1 (No-load current)"
P07 "Motor 1 (%R1)"
P08 "Motor 1 (%X)"
Note) The settings of Fuji's three-phase standard
motor are the data for 3-phase 200V or 400V
/ 50 Hz.
P03 Motor 1 (Rated current)
◆This parameter is the rated current of motor 1.
Setting range: 0.00 to 99.9 A
P04 Motor 1 (Tuning)
◆ The motor data is measured and the data is
automatically written.
Setting State of operation
０
Inactive
１
The primary resistance (%R1) of the
motor and the leakage reactance (%X)
of the base frequency are measured
while the motor is stopped, and the data
is automatically written to P07 and
P08.(Static tuning)
２
The primary resistance (%R1) of the
motor and the leakage reactance (%X)
of the base frequency are measured
while the motor is stopped, then the
no-load current (Io) is measured while
the motor turns, and P06, P07 and
P08 are automatically written.(Dynamic
tuning)
 Perform a tuning when the P06, P07 and P08
data written in the inverter in advance differs
from the actual motor data, that is, in the
following cases. Improvement in the control and
calculation accuracy is expected.
・ When a motor other than the Fuji's standard
three-phase motor (4 poles) is used.
・ When the impedance on the output side cannot
be ignored due to a long wiring length between
the inverter and the motor or connection of a
reactor.
・ When %R1 or %X is unknown due to a
nonstandard motor or a special motor.
・
1. Adjust the voltage and frequency according to
the characteristics of the motor. Adjust "F03",
"F04", "F05" and "F06".
2. Enter the motor constants which cannot be
tuned. P02 "Capacity", P03 "Rated current",
P06 "No-load current" (The no-load current is
not necessary in Dynamic tuning.)
3. To tune the no-load current, too, disconnect the
motor from the mechanical units and check that
no danger occurs even if the motor turns.
4. Set P04 "Tuning" to "1" (motor stop) or "2"
(motor rotation) and press the FUNC/DATA key
to write the data, then issue an operation
command (press the RUN key or turn the FWD
or REV terminal on) to start tuning. Tuning
takes several seconds to several tens of
seconds. (When the setting is "2", the motor
accelerates to a half of the base frequency in
the set acceleration/deceleration time to tune
the no-load current, then decelerates. Therefore
the time necessary for tuning varies according
to the set acceleration/deceleration time.)
5. During tuning, the set data ("1" or "2") blinks
rapidly and, upon the end of tuning, the next
function code (P05) is displayed. When the
FWD or REV terminal is connected to start
tuning, disconnect the terminal.
Note) Turn the BX and RST terminals off before
starting tuning.
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WARNING
• If auto tuning is set at "2", the
motor turns at a half of the base
frequency. Make sure that the
motor is disconnected from the
mechanical units and that no
danger results from the rotation.
Otherwise injuries could occur.
Tuning procedure