Fuji Electric FRENIC-MEGA, Instruction Manual

Page: 113 / 358

4-14
Ch
ap. 4
RUNNING TH
E
MOT
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R
4.1.10 Function code basic settings and tuning < 5 >
Under V/f control with speed sensor (F42* = 3) or dynamic torque vector control with speed sensor (F42* = 4), any of the following
cases requires configuring the basic function codes given below and auto-tuning. (Refer to Figure 4.1 on page 4-1.)
- Driving a non-standard motor
- Driving a HP rating motor, provided that the wiring distance between the inverter and motor is long or a reactor is connected
Configure the function codes listed below according to the motor ratings and your machinery design values. For the motor ratings,
check the ratings printed on the motor's nameplate. For your machinery design values, ask system designers about them.
For details on how to modify the function code data, see Chapter 3, Section 3.4.2 "Setting up function codes -- Menu #1 "Data
Setting" --."
Function
code
Name Function code data Factory default
f 04
*
Base frequency 1
Motor ratings
(printed on the nameplate of the motor)
60 Hz
f 05 *
Rated voltage
at base frequency 1
230/460 V
p 02
*
Motor 1 (Rated capacity)
Nominal applied motor capacity
p 03
*
Motor 1 (Rated current)
Rated current of nominal applied motor
f 03
*
Maximum frequency 1
Machinery design values
(Note)
For a test-driving of the motor, increase
values so that they are longer than your machinery
design values. If the specified time is short, the
inverter may not run the motor properly.
60 Hz
f 07
Acceleration time 1
(Note)
40 HP or below: 6.00 (s)
50 HP or above: 20.00 (s)
f 08
Deceleration time 1
(Note)
40 HP or below: 6.00 (s)
50 HP or above: 20.00 (s)
d 15
Feedback input
(Encoder pulse resolution)
Pulse count of the target motor encoder
0400 hex. / 1024 P/R
0400 (hex.)
d 16
Feedback input
(Pulse count factor 1)
Reduction ratio between the motor and the
encoder
Motor speed =
Encoder speed
×
(d17) / (d16)
1
d 17
Feedback input
(Pulse count factor 2)
1
When accessing the function code P02*, take into account that changing the P02* data automatically updates the data of
the function codes P03*, P06* to P23*, P53* to P56*, and H46.
„
Tuning procedure
(1) Selection of tuning type
Check the situation of the machinery and select "Tuning with the motor stopped (P04* = 1)" or "Tuning with the motor running
(P04* = 2)." For the latter tuning, adjust the acceleration and deceleration times (F07 and F08) and specify the rotation direction that
matches the actual rotation direction of the machinery.
P04*
data
Tuning type Motor parameters subjected to tuning Tuning
Select under the
following conditions
1
Tune while the
motor stops
Primary resistance (%R1) (P07*)
Leakage reactance (%X) (P08*)
Rated slip frequency (P12*)
%X correction factor 1 and 2 (P53* and P54*)
Tuning with the motor
stopped.
Cannot rotate the motor.
2
Tune while the
motor is
rotating under
V/f control
No-load current (P06*)
Primary resistance (%R1) (P07*)
Leakage reactance (%X) (P08*)
Rated slip frequency (P12*)
Magnetic saturation factors 1 to 5
Magnetic saturation extension factors
"a" to "c" (P16* to P23*)
%X correction factor 1 and 2 (P53* and P54*)
Tuning the %R1 and %X,
with the motor stopped.
Tuning the no-load current
and magnetic saturation
factor, with the motor
running at 50% of the base
frequency.
Tuning the rated slip
frequency, with the motor
stopped.
Can rotate the motor,
provided that it is safe.
Note that little load
should be applied during
tuning. Tuning with load
applied decreases the
tuning accuracy.
The tuning results of motor parameters will be automatically saved into their respective function codes. If P04* tuning is performed,
for instance, the tuning results will be saved into P* codes (Motor 1* parameters).