Mitsubishi Electric 800 Series Instruction Manual page 40

 Vector control for PM motor with encoder
Pr.80
(Pr.453), Pr.71
Pr.81 (Pr.450)
(Pr.454)
IPM/SPM
Other than motor
9999 (other than
MM-CF)
9999 ―

*1 The setting values of 100 and above are used when the fast-response operation is selected.
*2 The operation for the setting of "0 or 100" is performed when "1, 2, 101, or 102" is set.
*3 The operation for the setting of "4 or 104" is performed when "5 or 105" is set.
*4 Speed control under PM sensorless vector control is applied if an option for vector control for PM motor is not installed.
*5 The operation for the setting of "20 or 110" is performed when "10 to 14, or 111 to 114" is set.
*6 When a PM motor is used, set Pr.80 and Pr.81 according to the motor. Setting "9999" disrupts proper operation.
 Offline auto tuning
Offline auto tuning enables the optimal operation of a motor with encoder.
Pr. Name
96
Auto tuning setting/status
C110
463 Second motor auto tuning setting/
C210 status
• Refer to the Instruction Manual (Detailed) of the inverter to perform offline auto tuning.
• This section explains the specific information of the motor with an encoder.
Parameters to be overwritten with the tuning result data after tuning of PM motor
Pr.
90 (458) Motor constant (R1)
92 (460) Motor constant (L1)/d-axis inductance (Ld)
93 (461) Motor constant (L2)/q-axis inductance (Lq)
711 (739) Motor Ld decay ratio
712 (740) Motor Lq decay ratio
859 (860) Torque current/Rated PM motor current
96 (463) Auto tuning setting/status
373 871 Encoder position tuning setting/status
 
1105 887 Encoder magnetic pole position offset
 
: Tuned, ―: Not tuned
*1 The setting can be changed only when the FR-A8AL is installed.
*2 The setting can be changed only when the FR-A8TP is installed.
Pr.800 Pr.451
setting setting
 
0, 100

3, 103
4, 104

6, 106
9, 109 ―
20 (initial
20, 110

value), 110

9999
─
(initial value)
―
Vector Vector Vector
Initial
value
0
0
Name
Control method Control mode
Speed control
Position control
Speed control/position
Vector control

control switchover
Torque control by variable-
current limiter control
PM sensorless vector control test operation
PM sensorless
Speed control
vector control
The setting value of Pr.800 is used for the second motor.
(PM sensorless vector control (speed control) when Pr.800 = "9 or 109")
―
Setting
range
PM motor
0 Offline auto tuning disabled.
1 Offline auto tuning enabled (without the motor rotating).
Offline auto tuning enabled only for motor constant R1 (without the
11
motor rotating).
Encoder position tuning and
101 offline auto tuning enabled
(with the motor rotating slightly).
Setting of offline auto tuning for the second motor (refer to Pr.96 for
0, 1, 11, 101
the setting description.)
Tuning according to Pr.96 (Pr.463) setting
101 1
 
 
 
 
 
 
 
 ―
 ―
3
Remarks
―
―
MC signal: ON Position control
MC signal: OFF Speed control
―
―
Description
Induction motor
Offline auto tuning enabled
(with the motor rotating).
Description
11
 Resistance per phase
― d-axis inductance
― q-axis inductance
― d-axis inductance decay ratio
― q-axis inductance decay ratio
―

Encoder position tuning
―
performing status
Turning data of encoder
―
position tuning
BCN-C22005-910