Mitsubishi Electric FR-D720-0.2K-G Instruction Manual page 78

Test operation and gain adjustment of the PM sensorless vector control
Parameter
Name
Number
90
Motor constant (R1)
92
Motor constant (Ld)
93
Motor constant (Lq)
96
Auto tuning setting/status
125(903)
Terminal 2 speed setting gain speed
126(905)
Terminal 4 speed setting gain speed
144
Speed setting switchover
150
Output current detection level
374
Overspeed detection level
505
Speed setting reference
Current average value monitor
557
signal output reference current
702
Maximum motor speed
706
Induced voltage constant (phi f)
707
Motor inertia (integer)
711
Motor Ld decay ratio
712
Motor Lq decay ratio
717
Starting resistance tuning compensation
Starting magnetic pole position
721
detection pulse width
724
Motor inertia (exponent)
725
Motor protection current level
Motor induced voltage constant (phi
726
f) exponent
820
Speed control P gain
821
Speed control integral time
Torque control P gain (current loop
824
proportional gain)
Torque control integral time (current
825
loop integral time)
859
Rated PM motor current
870
Speed detection hysteresis
Regeneration avoidance
885
compensation speed limit value

The parameter is not automatically set when Pr.998 = "8009, 8109, 9009, or 9109". (The setting for performing offline auto tuning is retained.)

The value is automatically set when Pr. 998 = "8009, 8109, 9009, or 9109".
REMARKS
• If PM motor control parameter initialization is performed in frequency (Pr.998 = "3124 or 6104"), the rotation speed parameters
not listed in the table and the monitored items are also set and displayed in frequency.
<PM motor specifications table>
Rated motor rotation speed (frequency)
Maximum motor rotation speed (frequency)
Number of motor poles
Rated motor current
Overspeed detection level rotation speed
(frequency)
According to the motor to be connected, perform PM parameter initialization. Incorrect initial setting of
parameters may damage the motor.
The parameters for motor operation are initially set for an S-PM geared motor.
PM Motor (Rotations per Minute)
6004 (S-PM),
Pr.998 8009 (IPM motor (tuning)),
9009 (SPM motor (tuning))
Rated motor rotation speed
Rated motor rotation speed
Number of motor poles + 100
Short-time motor torque
Overspeed detection level rotation
speed
0.5% of the rated motor rotation speed
6% of the rated motor rotation speed
S-PM
(0.1kW to 1.5kW)
3000r/min (100Hz)
3000r/min (100Hz)
4
150%
300r/min (10Hz)
CAUTION
Setting Value
PM Motor (Frequency)
6104 (S-PM),
8109 (IPM motor (tuning)),
9109 (SPM motor (tuning))
9999 
9999 
9999 
0 
Rated motor frequency
Rated motor frequency
Number of motor poles
Short-time motor torque
Overspeed detection level frequency
Rated motor frequency
Rated motor current
9999 
9999 
9999 
9999 
9999 
9999 
9999 
9999 
9999 
9999 
15%
0.333s
9999 
9999 
9999 
0.5% of the rated motor frequency
6% of the rated motor frequency
S-PM IPM motor
(2.2kW) (after tuning)
3000r/min (150Hz)
3000r/min (150Hz) Pr.702 (Pr.84 when Pr.702 = "9999")
6
150%
300r/min (15Hz) Maximum motor frequency +10Hz
Setting
Increments
6004, 6104,
8009, 8109,
9009 9109
0.001
0.01mH
0.01mH
1
1r/min 0.01Hz
1r/min 0.01Hz
1
0.1%
1r/min 0.01Hz
0.01Hz
0.01A
1r/min 0.01Hz
0.1mV (s/rad)
1
0.1%
0.1%
0.1%
1s
1
0.1%
1
1%
0.001s
1%
0.1ms
0.01A
1r/min 0.01Hz
1r/min 0.01Hz
4
SPM motor
(after tuning)
Pr.84
Pr.81
Pr.859
75