Mitsubishi Electric A800 Function Manual
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Mitsubishi Electric A800 Function Manual

Mitsubishi Electric A800 Function Manual

Inverter synrm driving
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INVERTER
A800
F800
SynRM DRIVING
FUNCTION MANUAL
FR-A820-00046(0.4K)-04750(90K)-SYN
FR-A840-00023(0.4K)-06830(280K)-SYN
FR-A842-07700(315K)-12120(500K)-SYN
FR-F820-00046(0.75K)-04750(110K)-SYN
FR-F840-00023(0.75K)-06830(315K)-SYN
FR-F842-07700(355K)-12120(560K)-SYN
SynRM Driving Function
The FR-A800-SYN and FR-F800-SYN inverters have the SynRM driving functions, in addition to the functions of
the standard FR-A800 and FR-F800 inverters.
This SynRM Driving Function Manual explains the functions dedicated to the FR-A800-SYN and FR-F800-SYN.
For the functions not found in this Function Manual, refer to the FR-A800 or FR-F800 Instruction Manual.
In addition to this SynRM Driving Function Manual, please read the FR-A800 or FR-F800 Instruction Manual
800-SYN
carefully. Do not use this product until you have full knowledge of this product mechanism, safety information and
instructions.
Please forward this Function Manual to the end user.
800-SYN

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Summary of Contents for Mitsubishi Electric A800

  • Page 1 This SynRM Driving Function Manual explains the functions dedicated to the FR-A800-SYN and FR-F800-SYN. For the functions not found in this Function Manual, refer to the FR-A800 or FR-F800 Instruction Manual. In addition to this SynRM Driving Function Manual, please read the FR-A800 or FR-F800 Instruction Manual 800-SYN carefully.

  • Page 2: Table Of Contents

    Optimum excitation control when driving a SynRM Offline auto tuning for a SynRM Specifications 1.8.1 Mitsubishi Electric synchronous reluctance motor RF-SR (3000 r/min specification) ........27 1.8.2 Control specifications ............................. 28 2 DIFFERENCES BETWEEN THE FR-A800-SYN AND THE STANDARD MODEL...
  • Page 3 Automatic restart after instantaneous power failure / flying start with the SynRM Optimum excitation control when driving a SynRM Offline auto tuning for a SynRM Specifications 3.8.1 Mitsubishi Electric synchronous reluctance motor RF-SR (3000 r/min specification)........55 3.8.2 Control specifications............................56 4 DIFFERENCES BETWEEN THE FR-F800-SYN AND THE STANDARD MODEL...

  • Page 4: Synrm Driving Functions Of The Fr-A800-Syn

    4014, 4114, 7009, 7109   For other settings, refer to the FR-A800 Instruction Manual (Detailed). SynRM magnetic flux vector control • Highly efficient motor control is enabled by using the inverter and the SynRM, which is more efficient than an induction motor.

  • Page 5: Speed Control By Synrm Magnetic Flux Vector Control

    SynRM magnetic flux vector control. Driving the RF-SR  Operating procedure Set Pr.570 Multiple rating setting. When driving the Mitsubishi Electric synchronous reluctance motor RF-SR series, refer to the following table to set Pr.570 Multiple rating setting. Pr.570 Multiple rating setting Motor...
  • Page 6 SynRM parameter initialization. • Under SynRM magnetic flux vector control, the RUN signal is output about 100 ms after turning ON the start command (STF, STR). The delay is due to the magnetic pole position detection. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...

  • Page 7: Setting For The Synrm Magnetic Flux Vector Control By Selecting Parameter Initialization On The Operation Panel

    Setting for the SynRM magnetic flux vector control by selecting parameter initialization on the operation panel The following shows the procedure to initialize the parameter settings for the Mitsubishi Electric synchronous reluctance motor RF-SR by selecting IPM/SynRM initialization mode on the operation panel. Operating procedure Turning ON the power of the inverter The operation panel is in the monitor mode.

  • Page 8: Setting For The Synrm Magnetic Flux Vector Control By Pm/Synrm Parameter Initialization (Pr.998)

    • When Pr.998 = "4014, 7009", the monitor is displayed and the frequency is set using the motor rotations per minute (r/min). To set/monitor in frequencies (Hz), set Pr.998 = "4114, 7109". • When using a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor, set Pr.998 = "7009 or 7109". NOTE •...
  • Page 9 Rated motor frequency 1 r/min 0.01 Hz minute frequency Maximum motor rotations Maximum motor Overspeed detection level 9999 per minute frequency 1 r/min 0.01 Hz   + 10 Hz + 10 Hz  SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 10 However, when a value other than "9999" is set in Pr.859 Torque current/Rated PM motor current, the same value as the Pr.859 setting value is set.  110% for SLD, 120% for LD, 150% for ND, and 200% for HD (Refer to "Pr.570 Multiple rating setting" in the FR-A800 Instruction Manual (Detailed).) ...
  • Page 11 • When PM/SynRM parameter initialization is performed with the setting in units of rotations per minute, the parameters not listed in the list of the target parameters for the PM/SynRM parameter initialization and the monitor items are also set and displayed in rotations per minute. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 12 + 10 Hz  Frequency for maximum 60 Hz 50 Hz Pr.84 1 r/min 0.01 Hz input pulse Speed setting reference 60 Hz 50 Hz Pr.84 0.01 Hz Magnetic flux control P — 100% gain SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 13 "9999 (initial value)", the Pr.84 Rated motor frequency setting is used as the maximum motor frequency (rotations per minute).  110% for SLD, 120% for LD, 150% for ND, and 200% for HD (Refer to "Pr.570 Multiple rating setting" in the FR-A800 Instruction Manual (Detailed).) ...

  • Page 14: Selection Of The Control Method And The Control Mode

    9999 — — — V/F control (Same as that of the FR-A800 standard model)   The setting values of "100" and above are used when the fast-response operation is selected. For details on the fast-response operation, refer to the FR-A800 Instruction Manual (Detailed).

  • Page 15: Applied Motor (Pr.71, Pr.450)

    NOTE • When the Mitsubishi Electric synchronous reluctance motor RF-SR is used, setting is not required for the motor constant parameters (Pr.859, Pr.90, Pr.92, Pr.93, Pr.860, Pr.458, Pr.460, and Pr.461). • To drive a synchronous reluctance motor other than the RF-SR, offline auto tuning must be performed. Offline auto tuning automatically sets the motor constant parameters (Pr.859, Pr.90, Pr.92, Pr.93, Pr.860, Pr.458, Pr.460, and Pr.461).

  • Page 16: Adjustment Under Synrm Magnetic Flux Vector Control

    • Setting a smaller value in Pr.821 Speed control integral time 1 shortens the return time to the original speed during speed fluctuation, but setting it too low causes overshoot. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...

  • Page 17: Adjustment Procedure

    Pr.821 by half. Set Pr.821 higher. Overshoots or unstable Set about 80% to 90% of the maximum value without overshooting or unstable movements occur. movements while increasing the setting value of Pr.821 by twice. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...

  • Page 18: Magnetic Flux Command Low-Speed Scaling Factor

    • Under SynRM magnetic flux vector control, Pr.14 Load pattern selection and Pr.617 Reverse rotation excitation current low-speed scaling factor are disabled. • For details on Advanced magnetic flux vector control and Real sensorless vector control, refer to the FR-A800 Instruction Manual (Detailed).

  • Page 19: Adjusting Gain Of A Magnetic Flux Controller

    • Use Pr.546 Magnetic flux control integral time to set the integral time of the magnetic flux controller. Setting a smaller value in this parameter improves the motor's behavior in response to external disturbance if the magnetic flux fluctuates due to external disturbance. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...

  • Page 20: Automatic Restart After Instantaneous Power Failure / Flying Start With The Synrm

    • The Optimum excitation control may make the motor operation unstable in the low-speed range depending on the driving conditions. If the motor operation is unstable, change the driving conditions or disable this function. • For details on the operation under V/F control or Advanced magnetic flux vector control, refer to the FR-A800 Instruction Manual (Detailed).

  • Page 21: Offline Auto Tuning For A Synrm

    Set the maximum current (OCT) level of the motor. Motor protection When the RF-SR is selected: RF-SR constant is used. 9999 C133 current level 9999 When a SynRM other than RF-SR is selected: Inverter internal data is used. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 22  For the FR-A820-03160(55K) or lower and the FR-A840-01800(55K) or lower.  For the FR-A820-03800(75K) or higher and the FR-A840-02160(75K) or higher.  The initial value differs according to the voltage class (200/400 V). SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 23 • The settings are valid under SynRM magnetic flux vector control. • Offline auto tuning enables the operation with a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor. (To drive a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor, offline auto tuning must be performed.) •...
  • Page 24 • The motor constants measured once during offline auto tuning are stored as parameters and their data are held until offline auto tuning is performed again. However, the tuning data is cleared when performing All parameter clear. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 25 ○ — q-axis inductance axis inductance (Lq) Starting resistance tuning ○ ○ compensation Starting magnetic pole position detection pulse ○ — width Torque current/Rated PM ○ — motor current Auto tuning setting/status ○ ○ SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...
  • Page 26 For the FR-A820-03800(75K) or higher and the FR-A840-02160(75K) or higher. NOTE • If "9999" is set, tuning data will be invalid. The RF-SR constant is used for the Mitsubishi Electric synchronous reluctance motor RF-SR, and the inverter internal constant is used for a synchronous reluctance motor other than RF-SR.

  • Page 27: Specifications

    565 V or higher for the 400 V class). The maximum torque may be reduced under the following conditions. - The wiring length between the inverter and the motor is long. - The DC bus voltage of the inverter drops. SynRM DRIVING FUNCTIONS OF THE FR-A800-SYN...

  • Page 28: Control Specifications

    1.8.2 Control specifications The following table shows the control specifications added to this inverter. For the control specifications not found in the table, refer to "Common specifications" in Chapter 8 in the FR-A800 Instruction Manual (Detailed). Item Description Control method SynRM magnetic flux vector control 0.2 to 590 Hz...

  • Page 29: Differences Between The Fr-A800-Syn And The Standard Model

    MODEL Some functions of the FR-A800 standard model are changed in this inverter. The functions not found in Chapter 1 are the same as those of the FR-A800 standard model. For the functions added in and after August 2022, only the following functions are supported.
  • Page 30 Compensation function for the speed control P gain in the constant output range is disabled. (Pr.1116) NOTE • Parameter copy cannot be performed between the FR-A800-SYN and other models (such as the FR-A800 standard model). DIFFERENCES BETWEEN THE FR-A800-SYN AND THE STANDARD MODEL...

  • Page 31: Applicable Standards

    Applicable standards Applicable standards The following table shows the differences of the applicable standards from the FR-A800 standard model. FR-A800 Standard/certification FR-A800-SYN standard model UL/cUL standards ○ ○ EU Directive (CE marking) ○ ○ Waste Electrical and Electronic Equipment Directive (WEEE Directive) ○...

  • Page 32: Synrm Driving Functions Of The Fr-F800-Syn

    Inverter's control method and function name for driving the SynRM RF-SR Mitsubishi Electric synchronous reluctance motor RF-SR series SynRM driving function parameter list The following parameters and settings can be used for the SynRM driving functions. Set the parameters according to the application.

  • Page 33: Speed Control By Synrm Magnetic Flux Vector Control

    SynRM magnetic flux vector control. Driving the RF-SR  Operating procedure Set Pr.570 Multiple rating setting. When driving the Mitsubishi Electric synchronous reluctance motor RF-SR series, refer to the following table to set Pr.570 Multiple rating setting. Pr.570 Multiple rating setting Motor...
  • Page 34 Speed control by SynRM magnetic flux vector control Driving a SynRM other than RF-SR  Operating procedure Set the applied motor. (Pr.9, Pr.71, Pr.80, Pr.81, Pr.83, Pr.84) Set "7090" (synchronous reluctance motor other than RF-SR) in Pr.71 Applied motor. Set Pr.9 Rated motor current, Pr.80 Motor capacity, Pr.81 Number of motor poles, Pr.83 Rated motor voltage, and Pr.84 Rated motor frequency according to the motor specifications.

  • Page 35: Setting For The Synrm Magnetic Flux Vector Control By Selecting Parameter Initialization On The Operation Panel

    Setting for the SynRM magnetic flux vector control by selecting parameter initialization on the operation panel The following shows the procedure to initialize the parameter settings for the Mitsubishi Electric synchronous reluctance motor RF-SR by selecting IPM/SynRM initialization mode on the operation panel. Operating procedure Turning ON the power of the inverter The operation panel is in the monitor mode.

  • Page 36: Setting For The Synrm Magnetic Flux Vector Control By Pm/Synrm Parameter Initialization (Pr.998)

    • When Pr.998 = "4014, 7009", the monitor is displayed and the frequency is set using the motor rotations per minute (r/min). To set/monitor in frequencies (Hz), set Pr.998 = "4114, 7109". • When using a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor, set Pr.998 = "7009 or 7109". NOTE •...
  • Page 37 Speed control by SynRM magnetic flux vector control List of the target parameters for the PM/SynRM parameter initialization (RF-SR) The parameter settings in the following table are changed to the settings required to perform the SynRM magnetic flux vector control by selecting the SynRM magnetic flux vector control with the IPM/SynRM initialization mode on the operation panel or with Pr.998 PM/SynRM parameter initialization.
  • Page 38 When a value other than "9999" is set in Pr.702 Maximum motor frequency, the same value as the Pr.702 setting value is set.  Rated current of the RF-SR (3000 r/min specification). Refer to "Mitsubishi Electric synchronous reluctance motor RF-SR" on page However, when a value other than "9999"...
  • Page 39 Speed control by SynRM magnetic flux vector control NOTE • The speed setting range for the RF-SR (3000 r/min specification) is from 0 to 5400 r/min (0 to 180 Hz). • The carrier frequency is limited to 2, 6, 10, or 14 kHz under SynRM magnetic flux vector control. (4 kHz during fast-response operation.) •...
  • Page 40 Speed control by SynRM magnetic flux vector control List of the target parameters for the PM/SynRM parameter initialization (other than RF-SR) The parameter settings in the following table are changed to the settings required to perform the SynRM magnetic flux vector control by selecting the SynRM magnetic flux vector control with Pr.998 PM/SynRM parameter initialization.
  • Page 41 Speed control by SynRM magnetic flux vector control Setting value Setting Induction SynRM (rotations per SynRM (frequency increments motor minute setting) setting) Name 0 (initial 7009 7109 value) (SynRM other than (SynRM other than 7009 7109 RF-SR) RF-SR) Current average value 0.01 A ...

  • Page 42: Selection Of The Control Method And The Control Mode

    Speed control by SynRM magnetic flux vector control 3.3.4 Selection of the control method and the control mode Select SynRM magnetic flux vector control by using parameters. Motor capacity Pr.80 (Pr.453), Applied Control method Number of motor motor Pr.71 selection Control method Control mode poles...

  • Page 43: Applied Motor (Pr.71, Pr.450)

    NOTE • When the Mitsubishi Electric synchronous reluctance motor RF-SR is used, setting is not required for the motor constant parameters (Pr.859, Pr.90, Pr.92, Pr.93, Pr.860, Pr.458, Pr.460, and Pr.461). • To drive a synchronous reluctance motor other than the RF-SR, offline auto tuning must be performed. Offline auto tuning automatically sets the motor constant parameters (Pr.859, Pr.90, Pr.92, Pr.93, Pr.860, Pr.458, Pr.460, and Pr.461).

  • Page 44: Adjustment Under Synrm Magnetic Flux Vector Control

    Adjustment under SynRM magnetic flux vector control Adjustment under SynRM magnetic flux vector control 3.4.1 Speed estimation filter Set the time constant of primary delay filter for the estimated speed value under SynRM magnetic flux vector control. Name Initial value Setting range Description Without filter...
  • Page 45 Adjustment under SynRM magnetic flux vector control • Actual speed gain is calculated as follows when load inertia is applied. Load fluctuation Speed Since increasing the proportional gain enhances the response level and decreases the speed fluctuation. Decreasing the integral time shortens the return time taken. JM: Motor inertia Actual speed gain = Speed gain of a single motor JM+JL...

  • Page 46: Magnetic Flux Command Low-Speed Scaling Factor

    Adjustment under SynRM magnetic flux vector control 3.4.3 Magnetic flux command low-speed scaling factor Under SynRM magnetic flux vector control, the magnetic flux command scaling factor in the low-speed range can be adjusted. Initial Setting Name Description value range 0 to 400 Hz Set the frequency at which increased excitation is started.

  • Page 47: Adjusting Gain Of A Magnetic Flux Controller

    Adjustment under SynRM magnetic flux vector control 3.4.4 Adjusting gain of current controllers for the d axis and the q axis The gain of a current controller for SynRM magnetic flux vector control can be adjusted. Under ordinary circumstances, use the value for SynRM magnetic flux vector control, which has been set with PM/SynRM parameter initialization, as it is.

  • Page 48: Automatic Restart After Instantaneous Power Failure / Flying Start With The Synrm

    • The energy saving effect may be insufficient when the Optimum excitation control is used for a motor other than the Mitsubishi Electric RF-SR series synchronous reluctance motor. • The Optimum excitation control may make the motor operation unstable in the low-speed range depending on the driving conditions.

  • Page 49: Offline Auto Tuning For A Synrm

    The offline auto tuning for a SynRM enables the optimal operation of a synchronous reluctance motor other than the Mitsubishi Electric RF-SR series. • Automatic measurement of motor constants (offline auto tuning) enables optimal operation of motors for SynRM magnetic flux vector control even when motor constants vary or when the wiring distance is long.
  • Page 50 Offline auto tuning for a SynRM Initial Name Setting range Description value 0, 1, 3 to 6, 13 to 16, 20, 23, Set this parameter when using the second motor. 24, 40, 43, 44, 50, 53, 54, (Same specifications as Pr.71) 70, 73, 74, 210, 213, 214, Second applied 240, 243, 244, 4140, 7090,...
  • Page 51 • The settings are valid under SynRM magnetic flux vector control. • Offline auto tuning enables the operation with a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor. (To drive a synchronous reluctance motor other than the Mitsubishi Electric RF-SR motor, offline auto tuning must be performed.) •...
  • Page 52 Offline auto tuning for a SynRM Performing tuning POINT POINT • Before performing tuning, check the monitor display of the operation panel or parameter unit if the inverter is in the state ready for tuning. The motor starts by turning ON the start command while tuning is unavailable. •...
  • Page 53 Offline auto tuning for a SynRM • If offline auto tuning has ended in error (refer to the following table), motor constants are not set. Perform an inverter reset and perform tuning again. Error Error cause Countermeasures display Forced end Set Pr.96 (Pr.463) = "1 or 11"...
  • Page 54 For the FR-F820-03160(75K) or higher and the FR-F840-01800(75K) or higher. NOTE • If "9999" is set, tuning data will be invalid. The RF-SR constant is used for the Mitsubishi Electric synchronous reluctance motor RF-SR, and the inverter internal constant is used for a synchronous reluctance motor other than RF-SR.

  • Page 55: Specifications

    Specifications Specifications 3.8.1 Mitsubishi Electric synchronous reluctance motor RF-SR (3000 r/min specification) Motor specifications 200 V class RF-SR[]30S Motor model 400 V class RF-SR[]30HS 200 V class 00340 00490 00630 00770 Applicable inverter FR-F820-[]-SYN (7.5K) (11K) (15K) (18.5K) (LD rating)

  • Page 56: Control Specifications

    Specifications 3.8.2 Control specifications The following table shows the control specifications added to this inverter. For the control specifications not found in the table, refer to "Common specifications" in Chapter 8 in the FR-F800 Instruction Manual (Detailed). Item Description Control method SynRM magnetic flux vector control 0.2 to 590 Hz Output frequency range...

  • Page 57: Differences Between The Fr-F800-Syn And The Standard Model

    DIFFERENCES BETWEEN THE FR-F800-SYN AND THE STANDARD MODEL Some functions of the FR-F800 standard model are changed in this inverter. The functions not found in Chapter 3 are the same as those of the FR-F800 standard model. For the functions added in and after August 2022, only the following functions are supported.

  • Page 58: Specification Comparison Among Control Methods

    The following table shows the main differences in specifications among control methods. SynRM magnetic flux PM sensorless vector Item Induction motor control vector control (RF-SR) control (MM-EFS) Mitsubishi Electric IPM motor MM-EFS series synchronous reluctance (1500 r/min specification or motor RF-SR series 3000 r/min specification) Applicable motor (3000 r/min, 5.5 to 15 kW)
  • Page 59 REVISIONS *The manual number is given on the bottom left of the back cover. Revision Date *Manual Number Revision May 2023 IB(NA)-0601007ENG-A First edition Added • Optimum excitation control when driving a SynRM • Offline auto tuning for a SynRM •...
  • Page 60 HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN IB(NA)-0601007ENG-B(2403)MEE Printed in Japan Specifications subject to change without notice.

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