Ipm Motor Test Operation (Pr.800) <Ipm - Mitsubishi Electric FR-F720P-0.75K to 110K Instruction Manual

IPM motor control <IPM>
[IPM motor specification list]
Rated motor frequency
(rotations per minute)
Maximum motor frequency
(rotations per minute)
Number of motor poles
Short-time motor torque
Minimum frequency
(rotations per minute)
Speed detection hysteresis
frequency (rotations per minute)
(3) IPM motor control dedicated parameter
The following parameters are activated only under IPM motor control.
See the reference pages for details.
Parameter
number
Acceleration time in low-
791
speed range
Deceleration time in low-
792
speed range
800
Control method selection
820
Speed control P gain 1
821
Speed control integral time 1
4.3.3 IPM motor test operation (Pr.800)
Without connecting an IPM motor, the frequency movement can be checked by the monitor or analog signal output.
Two types of operation can be selected using this parameter: an actual operation by connecting an IPM
motor, or a test operation without connecting an IPM motor to simulate a virtual operation.
Parameter
Number
800 Control method selection
The above parameters can be set when Pr.160 User group read selection = "0." (Refer to page 201)
(1) Test operation
· To activate the IPM motor test operation, set Pr.998 IPM parameter initialization , change the control to IPM motor control,
then set Pr.800 Control method selection = "9."
Perform a test operation by giving a frequency and a start command under each of PU/External/Network operation mode.
· P.RUN on the operation panel (FR-DU07) flickers during the IPM motor test operation.
Running frequency
(AM and FM output)
REMARKS
· In the test operation, current is not detected and voltage is not output. Related monitor displays of the output current and
voltage show "0."
82
MM-EF
(30kW or lower) (37kW to 75kW)
90Hz
(1800r/min)
135Hz
(2700r/min)
6
120%
9Hz
(180r/min)
0.5Hz
(10r/min)
Name
Acceleration time in the low-speed range ("rated motor frequency/10" or
lower) is set.
Deceleration time in the low-speed range ("rated motor frequency/10" or
lower) is set.
IPM motor test operation is selected.
The proportional gain during speed control is set. (Setting this
parameter higher improves the trackability for speed command
changes. It also reduces the speed fluctuation due to a load fluctuation.)
The integral time during speed control is set. (Setting this parameter
shortens the return time to the original speed when the speed fluctuates
due to a load fluctuation. )
Initial
Name
value
20
STF
RUN
MM-EF MM-EF
(90kW or higher)
120Hz 120Hz
(1800r/min) (1800r/min)
180Hz 160Hz
(2700r/min) (2400r/min)
8 8
120% 120%
12Hz 12Hz
(180r/min) (180r/min)
0.5Hz 0.5Hz
(8r/min) (8r/min)
Description
IPM IPM IPM
< I P M >
Setting
range
IPM motor test operation (Motor is not driven even if
9
it is connected.)
20 Normal operation (Motor can be driven.)
MM-EFS MM-EFS
(15kW or lower) (18.5kW to 55kW)
75Hz 100Hz
(1500r/min) (1500r/min)
112.5Hz 150Hz
(2250r/min) (2250r/min)
6
120% 120%
7.5Hz 10Hz
(150r/min) (150r/min)
0.5Hz 0.5Hz
(10r/min) (8r/min)
Operation
Time
8
Refer
to Page
109
109
82
84
84