Toshiba VFAS1 Instruction Manual
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Toshiba VFAS1 Instruction Manual

Motor control
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Ｅ６５８１９４７
VFAS1
Motor Control instruction manual
Confidential ㊙
This manual is the engineering fortune of
Toshiba Schneider Inverter Corporation.
All of the release, reproduction, diversion
and
alteration
of
contents
are
strictly
prohibited.
The firmware will be updated without any notice.

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Summary of Contents for Toshiba VFAS1

  • Page 1 Ｅ６５８１９４７ VFAS1 Motor Control instruction manual Confidential ㊙ This manual is the engineering fortune of Toshiba Schneider Inverter Corporation. All of the release, reproduction, diversion alteration contents strictly prohibited. The firmware will be updated without any notice.

  • Page 2: Table Of Contents

    Ｅ６５８１９４７ ONTENTS PARAMETERS FOR MOTOR CONTROL ..................... 2 THE EFFECTIVE PARAMETERS FOR PT=2, 3,4,7,8 ................. 4 ........................4 DJUSTMENT OF SPEED LOOP GAIN 2.1.1 Parameter setting ............................4 2.1.2 parameter adjustment ..........................4 ......................4 DJUSTMENT OF CURRENT LOOP GAIN 2.2.1 Parameter setting ............................4 2.2.2 Parameter adjustment..........................4 F415（...

  • Page 3: Parameters For Motor Control

    Ｅ６５８１９４７ 1. P ARAMETERS FOR MOTOR CONTROL Here after is the parameter list for VF-AS1 motor control. AS1 motor parameter list pt control law Accessible parameter function For what? during running? 0:V/f constant VF5points Automatic Sensor-less (for power Vector control 1:Variable torque boost Vector control...
  • Page 4 Ｅ６５８１９４７ ★1：The parameters are set before auto-tuning, corresponding to the application motor (by motor name plate or test report). It is necessary to set for special motor and small motor. It is also recommended to set for normal motor. In case of p (pole pair), it is estimated by the difference between Fn and Nn, so please confirm their relation to correspond to the slip of the applied motor.

  • Page 5: The Effective Parameters For Pt=2, 3,4,7,8

    Ｅ６５８１９４７ 2. T =2, 3,4,7,8 FFECTIVE PARAMETERS FOR 2.1 Adjustment of speed loop gain 2.1.1 Parameter setting parameter function range Default setting 1～9999 F460 Speed loop gain 1～9999 F461 Speed loop stability coefficient 0～100 F462 The filter of speed reference 2.1.2 parameter adjustment Please refer to Instruction Manual E6581333 for details.

  • Page 6: F415（Flux Enhancement At Low Speed

    Ｅ６５８１９４７ 2.3 F415（flux enhancement at low speed） 2.3.1 Parameter setting parameter function range Default setting 100%～130% F415 Flux enhancement rate at low speed 100% 2.3.2 Parameter adjustment It is necessary to set PT=2 or 3,4,7,8 to set motor parameters from motor nameplate, and to do auto-tuning when high output torque at low speed is needed.

  • Page 7: F416(Stall Reduction At Field Weakening Area)

    Ｅ６５８１９４７ 2.4 F416(stall reduction at field weakening area) 2.4.1 Parameter setting parameter function range Default setting 10～250 F416 Stall reduction at field weakening area 2.4.2 Parameter adjustment In case of the driving at field weakening area, motor flux is reduced therefore motor maximum torque is also reduced.

  • Page 8: F495(Over Modulation / Maximum Voltage Adjustment)

    Ｅ６５８１９４７ 2.5 F495(over modulation / maximum voltage adjustment) 2.5.1 Parameter setting parameter function range Default setting 0:Normal over modulation / maximum voltage 1 :Straight 100% F495 adjustment 2 : 102.5% 3 : 105% 2.5.2 Parameter adjustment To increase maximum torque at nominal point, increase of F495 is effective. problem countermeasure Side effect...

  • Page 9: The Effective Parameters For Pt=0, 1

    Ｅ６５８１９４７ 3. T PT=0, 1, 5 FFECTIVE PARAMETERS FOR 3.1 Current differential gain 3.1.1 Parameter setting parameter function range Default setting 0:Disabled 1:Enabled(Low gain) F467 Current differential gain 2: Enabled(Middle gain) 3: Enabled(High gain) 3.1.2 Parameter adjustment To improve the motor unstable, it is effective to adjust F467 even if F467=1, especially motor unstable at no load and small inertia condition.

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