Parameters In Which The Tuning Results Are Set To After Tuning; Tuning Adjustment (Pr.1002); To Change The Motor Constants; Changing The Motor Constants (If Setting Motor Constants In Units Of [Ω], [Mh] Or [A]) - Mitsubishi Electric FR-F800 Instruction Manual

Parameters in which the tuning results are set to after tuning
First Second
motor Pr. motor Pr.
90 458 Motor constant (R1)
Motor constant (L1)/d-axis
92 460
inductance (Ld)
Motor constant (L2)/q-axis
93 461
inductance (Lq)
711 739 Motor Ld decay ratio
712 740 Motor Lq decay ratio
Starting resistance tuning
717 741
compensation
Starting magnetic pole position
721 742
detection pulse width
Torque current/Rated PM
859 860
motor current
96 463 Auto tuning setting/status
Tuning adjustment (Pr.1002)
• The overcurrent protective function may be activated during Lq tuning for an easily magnetically saturated motor (motor
with a large Lg decay ratio). In such case, adjust the target flowing current used for tuning with Pr.1002 Lq tuning target
current adjustment coefficient.
Changing the motor constants
• If the motor constants are known, the motor constants can be set directly or set using data measured through offline auto
tuning.
• According to the Pr.71 (Pr.450) setting, the range of the motor constant parameter setting values and units can be
changed. The setting values are stored in the EEPROM as motor constant parameters, and two types of motor constants
can be stored.
Changing the motor constants (If setting motor constants in units of [Ω],
[mH] or [A])
• Set Pr.71 as shown below.
Motor
MM-EFS/MM-THE4
IPM motor
Other than MM-EFS/MM-THE4
SPM motor
• Set given values as the motor constant parameters.
First Pr. Second Pr.
90 458 Motor constant (R1)
92 460 Motor constant (L1)/d-axis inductance (Ld)
93 461 Motor constant (L2)/q-axis inductance (Lq)
706 738 Induced voltage constant (phi f)
859 860 Torque current/Rated PM motor current

For the FR-F820-02330(55K) or lower and FR-F840-01160(55K)or lower.

For the FR-F820-03160(75K) or higher and FR-F840-01800(75K)or higher.
Other than
Name MM-EFS/MM-THE4
Pr.96 (Pr.463) = 1









Pr.71 setting
210
8090
9090
Name
(C) Motor constant parameters
V/F control or
MM-EFS/MM-THE4
Pr.96 (Pr.463) = 11

―
―
―
―

―
―

Setting range
0 to 50 Ω, 9999 0.001 Ω

0 to 400 mΩ, 9999 0.01 mΩ

0 to 500 mH, 9999 0.01 mH

0 to 50 mH, 9999 0.001 mH

0 to 500 mH, 9999 0.01 mH

0 to 50 mH, 9999 0.001 mH

0 to 5000 mV/(rad/s), 9999 0.1 mV/(rad/s)
0 to 500 A, 9999 0.01 A

0 to 3600 A, 9999 0.1 A

Description
Resistance per phase
d-shaft inductance
q-shaft inductance
d-shaft inductance decay
ratio
q-shaft inductance decay
ratio
When the setting value is
10000 or more: With polarity
inversion for compensation,
voltage pulse (Pr. setting
minus 10000) s
Setting
Initial value
increments




9999




357
PARAMETERS
5
GROUP
C