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I do not succeed, although identification is tried in GUI. TMDSCNCD28069MISO at TMDSHVMTRINSPIN

Hidetaka
Expert 1080 points
Other Parts Discussed in Thread: TMDSHVMTRINSPIN

I do not succeed, although identification is tried in GUI.


The kit which I am using is TMDSCNCD28069MISO at TMDSHVMTRINSPIN.

The specification of a motor is as follows.
Can I rotate this motor by GUI?
Please advise on whether what I should do with a preset value.

Electrical Power supply facility : 0.5 kVA
Rated capacity : 200 W
Pole number : 8
Rated torque : 0.64 Nm
Instantaneous maximum torque : 1.91 Nm
Electrical Power supply facility : 0.5 kVA
Rated current : 1.6 A(rms)
Maximum current : 6.9 A(o-p)
Rated revolution : 3000 r/min
Maximum revolution : 5000 r/min
Rotor inertia : 0.21 ( x 10-4 kg m2 )
Electric damping time constant : 3.4 ms
Mechanical time constant : 0.78 ms
Power rate : 19.7 kW/s
every phase voltage constant : 14.8 +-10% ( x 10-3V(rms)/min-1 )
Induction voltage constant : 31.4 +-10% ( x 10-3V(o-p)/min-1 )
Torque constant : 0.42 +-10% ( Nm/A(rms) )
0.30 +-10% ( Nm/A(o-p) )
phase resistance : 2.3 +-7% ohm
phase inductance : 7.8 mH
Heat-resistant class : 130(B)
Vibrate Rank : V-15
Fabric : Totally-enclosed type self-cooled
The recommendation load moment-of-inertia ratio to rotor moment of inertia : 30 or less times.

  • 0
    Guru 12800 points
    I think the issue here is your identified motor parameters. Those values don't seem to be correct for your motor. If the motor parameters are not correct then there is no way that the inertia identification will succeed.

    I would try using the default values for the identification settings. For the type of motor you are using they are usually fairly successful.
  • 0 in reply to Adam D. Reynolds
    Expert 1080 points

    Hello, Adam-san.


    This motor is MSMA022C1T of Panasonic.

    Panasonic Motor : MINAS AIII series MSMA022C1T
    industrial.panasonic.com/.../minas_a_e.pdf

    I thought that I of the parameter of this motor was as follows.
    Is this parameter correct?

    1. RES_EST_CURRENT :
    Start with 10% of the rated current of the motor
    Rated current : 1.6 A(rms) x 10% = 0.16 (A)
    2. Ind Est Current : 0

    3. Estimation Freq :
    Estimation Freq(hz) : ( 3000/120) * 8 * 10% =20Hz

    4. Motor Pole Pairs :
    8 pole / 2 = 4
    5. Motor Max Current : 1.6 A

    6. Motor Max Freq :
    Motor MAX Freq(Hz) : ( 3000rpm / 120 ) * 8 = 200 (Hz)
    7. Rated Flux(Vline-line/Hz) : 0(ACIM only)

    Regards, Hidetaka.

  • 0 in reply to Hidetaka
    Guru 12800 points

    Hidetaka-san,

    The only parameter I disagree with is 2. Ind Est Current : 0

    The inductance estimation current should be approximately equal to the resistance estimation current, but should be negative.

    Based on the results you were seeing I would raise the resistance estimation current so that way there is more signal for the system to work with.  I would recommend trying 0.5 or even 1.0

  • 0 in reply to Adam D. Reynolds
    Expert 1080 points
    Thank you, Adam-san.

    I try on a setting of 0.5-1.0.

    Regards, Hidetaka.
  • 0 in reply to Hidetaka
    TI__Guru** 119600 points
    I would increase RES_EST_CURRENT to 0.3A and set IND_EST_CURRENT to -0.3A
    make sure that the motor starts spinning during RampUp and stays at the target 20 Hz for the duration of the motor ID process.

    I'm guessing it didn't spin hence the Ls and Flux are incorrect.
  • 0 in reply to ChrisClearman
    Expert 1080 points
    Hello, ChrisClearman-san.

    I found my mistake.
    I had mistaken wiring of the motor.
    I had mistaken W of UVW, and FG line.
    By wiring correctly, identification came to be successful.
    I appreciate your advice.

    Thanks, Hidetaka.