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Nuvoton KE-K44370USB User Manual

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KE-K44370USB
User's Manual
for KE-K44370USB
August 23, 2024
Page 1 of 43
Rev 1.00

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Summary of Contents for Nuvoton KE-K44370USB

  • Page 1 KE-K44370USB User’s Manual for KE-K44370USB August 23, 2024 Page 1 of 43 Rev 1.00...

  • Page 2: Disclaimer

    Measures on the systems such as, but not limited to, redundant design, mitigating the spread of fire, or preventing glitch, are recommended in order to prevent physical injury, fire, social damages, etc. in using the Nuvoton Technology Japan Corporation (hereinafter referred to as NTCJ) products.

  • Page 3: Table Of Contents

    KE-K44370USB CONTENTS DISCLAIMER................................2 ■OVERVIEW ................................4 ■HOW TO INSTALL ..............................5 ■HOW TO USE ................................. 7 ■1. Setting by function tab ..........................8 ■2. Setting by register tab ........................... 12 ■MOTOR CHARACTERISTIC SETTINGS ......................14 ■1. FG / LD Terminal Output Signal Selection ................... 14 ■2.

  • Page 4: Overview

    KE-K44370USB ■Overview This evaluation kit (KE-K44370USB) is an evaluation kit that unifies a dedicated interface board for communications and the evaluation board (KE-KA44370A). Parameters setting of KA44370A can be facilitated by this evaluation kit to support motor evaluation. ① Interface board for KE-KA44370A evaluation board...

  • Page 5: How To Install

    "KT-KA44370A_USB_Controller" is a GUI to set resister to be written into the built-in IC memory. By "KT-KA44370A_USB_Controller_install.exe" installer, it installs all necessary software for "KT-KA44370A_USB_Controller.exe". Please download and install the installer from the Nuvoton website below. http://23.98.77.38:8080/tool-and-software/evaluation-board/motor-drivers/evaluation-board/ Installation procedure Double Click on “KT-KA44370A_USB_Controller_install.exe”...
  • Page 6 KE-K44370USB ■How to install (continued) “KT-KA44370A_USB_Controller” install (continued) Click Next Click Finish (Restart PC) After restarting PC, please make sure that "KT-KA44370A_USB_Controller.exe", "initial_data.csv", "KT-KA44370A_USB_Controller.aliases" and "KT-KA44370A_USB_Controller.ini" are in the same folder as the installation folder. If the configuration is as shown in the figure below, the installation was successful.

  • Page 7: How To Use

    KE-K44370USB ■How to use "KT-KA44370A_USB_Controller.exe" is the GUI executable file for the communication interface board. To start the program, double-click on "KT-KA44370A_USB_Controller.exe" and the following window will open. Two modes are available to control KA44370A, including register tab for individual register setting and function tab for settings by function with their respective parameters.

  • Page 8: Setting By Function Tab

    KE-K44370USB How to use (Continued) ■1. Setting by function tab The settings in function tab sets the parameters of each function. The GUI layout is shown below. Switching between the “Function 1” and “Function 2” tabs on the main GUI to allow setting to all parameters.
  • Page 9 KE-K44370USB How to use (Continued) 1. Setting by function tab (Continued) ■ There are two modes to write parameters into KA44370A: 1) “OTP write mode”, which sets parameters and writes into the built-in memory (OTP: One Time Programmable read only memory) and sets parameters 2) “Register setting mode”, which sets parameters without writing to the OTP...
  • Page 10 KE-K44370USB How to use (Continued) 1. Setting by function tab (Continued) ■ "Function1" sets parameters related to motor protection functions and motor control. User’s Manual for KE-K44370USB KT-KA44370A_USB_Controller Setting name on GUI Setting name on manual Section Page Lock Protection...
  • Page 11 1. Setting by function tab (Continued) ■ "Function 2" sets parameters related to the waveform type of the motor current and the energizing waveform to the motor. User’s Manual for KE-K44370USB KT-KA44370A_USB_Controller Setting name on GUI Setting name on manual...

  • Page 12: Setting By Register Tab

    KE-K44370USB How to use (Continued) ■2. Setting by register tab The setting in register tab sets the parameters by writing to respective register directly. The GUI layout is shown below. “Register” tab on the GUI to allow setting to all parameters.
  • Page 13 KE-K44370USB How to use (Continued) ■2. Setting by register tab (Continued) Just like with “setting by function tab”, register setting mode and OTP writing mode are also available. Note) If the register settings in “Register tab” have been reflected in settings in function tab, the following steps in register tab are not necessary.

  • Page 14: Motor Characteristic Settings

    KE-K44370USB ■Motor characteristic settings ■1. FG / LD Terminal Output Signal Selection selects the FG / LD terminal output from either the rotation speed signal (FG) or the motor lock protection detection FG_LD signal (LD). Select the rotation speed signal (FG) or motor lock protection detection signal (LD) according to the motor set specifications.

  • Page 15: Motor Lock Protection Setting

    KE-K44370USB Motor characteristic settings (Continued) ■2. Motor Lock Protection Setting and T adjust the motor lock protection detection time and release time. LOCKON LOCKOFF The motor output is turned OFF during lock protection operation, and the protection is released after the lock protection release time has elapsed.

  • Page 16: Standby Power Consumption Reduction Mode Selection

    KE-K44370USB Motor characteristic settings (Continued) ■3. Standby Power Consumption Reduction Mode Selection enables / disables the standby power consumption reduction mode (Sleep mode). SLEEP Enable / disable the standby power consumption reduction mode according to the motor set specifications. The recommended setting is standby power consumption reduction mode disabled.

  • Page 17: Vsp Terminal Speed Command Input Signal Selection

    KE-K44370USB Motor characteristic settings (Continued) ■4. VSP Terminal Speed Command Input Signal Selection selects the input method (DC input mode or PWM input mode) of the speed command signal input to the VSP terminal. Select the speed command signal input method (DC / PWM) according to the motor set specifications.

  • Page 18: Speed Command Input / Output Polarity And Gain Adjustment

    KE-K44370USB Motor characteristic settings (Continued) ■5. Speed Command Input / Output Polarity and Gain Adjustment 5.1. VSP : Speed Command Input / Output Polarity Selection selects the input / output polarity of the speed command. Select the input / output polarity of the speed command according to the motor set specifications.
  • Page 19 KE-K44370USB Motor characteristic settings (Continued) ■5. Speed Command Input / Output Polarity and Gain Adjustment (Continued) 5.2. VSP : Speed Command Input / Output Gain Adjustment adjusts the input / output gain of the rotation command (the speed command input level that results in maximum motor current).
  • Page 20 KE-K44370USB Motor characteristic settings (Continued) ■5. Speed Command Input / Output Polarity and Gain Adjustment (Continued) Table 5-1 Speed command input for maximum motor Speed command input for maximum motor current PWM input mode [%] DC input mode [V] 0x21 D1...

  • Page 21: Motor Start / Stop Threshold Setting

    KE-K44370USB Motor characteristic settings (Continued) ■6. Motor Start / Stop Threshold Setting 6.1. VSP : Motor Stop Selection STOP selects whether to stop the motor drive. STOP Select whether to stop the motor according to the motor set specifications. When "Without stop" is selected, the minimum rotation speed will change depending on the minimum rotation speed setting For details on the minimum rotation speed setting VT , refer to chapter "■8.
  • Page 22 KE-K44370USB Motor characteristic settings (Continued) ■6. Motor start/stop threshold setting (Continued) 6.2. VSP : Motor Start Threshold Setting START sets the threshold value for the speed command that will initiate motor start-up. START The speed command threshold for stopping has a hysteresis width of 3.125% relative to the motor start threshold.
  • Page 23 KE-K44370USB Motor characteristic settings (Continued) ■6. Motor start/stop threshold setting (Continued) Motor Start Threshold Setting VSP can be set START August 23, 2024 Page 23 of 43 Rev 1.00...

  • Page 24: Output Pwm Control Setting

    KE-K44370USB Motor characteristic settings (Continued) ■7. Output PWM control setting Note) Please note that if you change the MOSFET or gate constant, the recommended parameter setting for this chapter setting "■7. Output PWM control " will change. 7.1. T : Synchronous Rectification Dead Time Adjustment adjusts the synchronous rectification dead time to prevent through current when the high-side and low-side MOSFETs are turned on simultaneously.
  • Page 25 KE-K44370USB Motor characteristic settings (Continued) ■7. Output PWM Control Setting (Continued) 7.3. F : Output PWM Frequency Selection selects the output PWM frequency. The PWM is ON at the selected output PWM frequency. Selecting a PWM frequency of 20kHz makes it possible to improve efficiency by reducing switching losses, while selecting 30kHz makes it possible to suppress distortion of the motor current waveform.

  • Page 26: Motor Current Adjustment

    KE-K44370USB Motor characteristic settings (Continued) ■8. Motor current adjustment 8.1. VT : Maximum Motor Current Adjustment adjusts the maximum motor current. When combined with current detection resistor Rcs, the maximum motor current I is limited by = VT / Rcs If the maximum rotation speed is not reached or the settling time is long, adjust VT higher.
  • Page 27 KE-K44370USB Motor characteristic settings (Continued) ■8. Motor Current Adjustment (Continued) 8.2. VT : Minimum Rotation Speed Setting sets the minimum rotation speed. When speed feedback control is disabled, the minimum motor current I is limited as a percentage of the maximum motor current based on the following formula.
  • Page 28 KE-K44370USB Motor characteristic settings (Continued) ■8. Motor Current Adjustment (Continued) Maximum Motor Current Adjustment VT Minimum Rotation Speed Setting VT can be set August 23, 2024 Page 28 of 43 Rev 1.00...

  • Page 29: Speed Control Method Selection

    KE-K44370USB Motor characteristic settings (Continued) ■9. Speed Control Method Selection 9.1. N : Maximum Rotation Speed Setting when Speed Feedback Control is Enabled MAX1 MAX2 and N set whether the speed feedback control method is enabled or disabled, and the maximum rotation speed...
  • Page 30 KE-K44370USB Motor characteristic settings (Continued) ■9. Rotation Speed Control Method Selection (Continued) 9.2. G : Responsiveness Adjustment when Speed Feedback Control is Enabled STEP1 STEP0 and G adjust the responsiveness (Gain) when speed feedback control is enabled. STEP1 STEP0 Check and adjust the transient characteristics such as the settling time and overshoot / undershoot when the motor accelerates and decelerates.

  • Page 31: Vibration Suppression / High-Speed Rotation

    KE-K44370USB Motor characteristic settings (Continued) ■10. Vibration suppression / High-speed rotation By adjusting the motor current waveform and slope angle, it is possible to suppress vibration with sinusoidal wave motor current, or increase the maximum rotation speed with trapezoidal wave motor current.
  • Page 32 KE-K44370USB Motor characteristic settings (Continued) ■10. Vibration Suppression / High-speed Rotation (Continued) Address Bit Item Variable Default Recommended Description Speed command input to start trapezoidal wave drive (transition wave drive completed) 0% - 93.8%, 6.25% step (16 divisions) 4’ b0000: 0% 4’...
  • Page 33 KE-K44370USB Motor characteristic settings (Continued) ■10. Vibration Suppression / High-speed Rotation (Continued) 10.2. SL1, SL2: Trapezoidal Wave Motor Current Slope Angle Adjustment SL1 and SL2 adjust the slope angle of the trapezoidal wave motor current. The setting value is defined as an angle relative to one period of the waveform (electrical angle 360deg).

  • Page 34: Rotation Speed Characteristics Adjustment

    KE-K44370USB Motor characteristic settings (Continued) ■11. Rotation speed characteristics adjustment The rotation speed characteristics can be adjusted by adjusting the motor current phase. The detailed settings are explained below. 11.1. PH : Maximum Motor Current Advanced Phase adjusts the maximum motor current advanced phase, thereby adjusting the maximum rotation speed.
  • Page 35 KE-K44370USB Motor characteristic settings (Continued) ■11. Rotation Speed Characteristics Adjustment (Continued) 11.3. V : Motor Current Advanced Phase Start Threshold Setting adjusts the linearity of the rotation speed in response to the speed command input when speed feedback control is disabled.
  • Page 36 KE-K44370USB Motor characteristic settings (Continued) ■11. Rotation Speed Characteristics Adjustment (Continued) Maximum Motor Current Advanced Phase PH Minimum Motor Current Advanced Phase PH Motor Current Advanced Phase Start Threshold Setting can be set August 23, 2024 Page 36 of 43...

  • Page 37: Reduction Of Rush Current

    KE-K44370USB Motor characteristic settings (Continued) ■12. Reduction of rush current By adjusting the motor acceleration / deceleration time, it is possible to reduce rush current when the motor starts up or when it accelerates or decelerates rapidly. 12.1. T : Slow Start Time (SST) SLOW_R adjusts the motor acceleration time.
  • Page 38 KE-K44370USB Motor characteristic settings (Continued) ■12. Reduction of rush current (Continued) Slow Start Time (SST) T SLOW_R Slow Deceleration Time T can be set SLOW_F August 23, 2024 Page 38 of 43 Rev 1.00...

  • Page 39: Resistor Map

    KE-K44370USB Motor characteristic settings (Continued) ■13. Resistor Map The following table is the register map for this IC. Each symbol corresponds to the variable name explained in chapters "■1. FG / LD Terminal Output Signal Selection" to "■12. Reduction of rush current".

  • Page 40: Saving / Loading Setting Data

    KE-K44370USB ■Saving / loading setting data Settings in function tab and register tab can be saved. When you restart the interface board, the saved settings can be read out by loading the configuration file. Save setting data Load setting data All register settings can be saved with File →...

  • Page 41: Notes

    KE-K44370USB ■Notes When using this interface board, be sure to "execute"/"read" with the motor stopped. If you execute or read while the motor is rotating, unintended motor behavior may occur. When using this interface board, do not change anything that is not specified in the manual.

  • Page 42: Revision History

    KE-K44370USB Revision History Date Revision Description 2024.8.23 1.00 1. initially issued. August 23, 2024 Page 42 of 43 Rev 1.00...

  • Page 43: Important Notice

    All Insecure Usage shall be made at customer’s risk, and in the event that third parties lay claims to Nuvoton as a result of customer’s Insecure Usage, customer shall indemnify the damages and liabilities thus incurred by Nuvoton.