SLAU880C December   2022  – May 2024 ULC1001

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  5. 2Introduction
  6. 3Getting Started
    1. 3.1 Evaluation Kit Contents
    2. 3.2 Connection Procedure
    3. 3.3 GUI Setup
  7. 4System Overview
    1. 4.1 System ISR Period
    2. 4.2 System Drive Voltage
    3. 4.3 System Calibration
      1. 4.3.1 DC Bias Calibration
      2. 4.3.2 Temperature Calibration
      3. 4.3.3 Auto Sense Calibration
      4. 4.3.4 Cleaning and Power Calibration
    4. 4.4 System Cleaning
    5. 4.5 System Diagnostics
  8. 5GUI Overview
    1. 5.1 GUI Top Level Layout
      1. 5.1.1 North Pane
      2. 5.1.2 South Pane
      3. 5.1.3 Center Pane
    2. 5.2 High Level Page
      1. 5.2.1 Burst Parameters
      2. 5.2.2 Calibration Settings
        1. 5.2.2.1 Voltage and Current Sense Circuitry
      3. 5.2.3 Cleaning Mode Settings
        1. 5.2.3.1 Auto-Cleaning
        2. 5.2.3.2 Water Cleaning
        3. 5.2.3.3 Deice Cleaning
        4. 5.2.3.4 Mud Cleaning Mode
      4. 5.2.4 Power and Diagnostic Settings
    3. 5.3 Register Map Page
    4. 5.4 I2C Configuration Page
    5. 5.5 GUI Functions
      1. 5.5.1 Monitor Communication Status
      2. 5.5.2 Load and Save Configuration Files
        1. 5.5.2.1 MSP430 Firmware Programming
      3. 5.5.3 Re-initialize System
      4. 5.5.4 Fault and Flag Monitoring and Clearing
      5. 5.5.5 Run Calibration
      6. 5.5.6 Run Cleaning Modes
      7. 5.5.7 Run Diagnostic Mode
      8. 5.5.8 Run Abort
      9. 5.5.9 Script Recording
  9. 6Hardware Design Files
    1. 6.1 Schematics
    2. 6.2 PCB Layouts
    3. 6.3 Bill of Materials (BOM)
  10. 7Revision History

4.3 System Calibration

The ULC1001 compensates for mechanical variances in the LCS using a sophisticated calibration routine. The calibration routine configures settings for cleaning modes, temperature protection, power monitoring, mass detection, and diagnostics. When calibrating the system, the LCS must be clear of any debris or water and near room temperature (23°C - USER_Params_tempParams_calTemp_C_Q21 can be adjusted). Calibration needs to be repeated anytime there is a change in the impedance of the LCS, such as change in wire length or wire gauge connecting the ULC1001-DRV290x EVM to the LCS.

When the ULC1001 is connected and powered, Calibration Mode must be configured and run first. There are 5 bursts that calibrate different algorithms. The suggested order is burst 0, 5, 1, 2, 3. Each burst is described in Table 4-2. The calibration sequence is shown in Figure 5-7.

Table 4-2 Valid Calibration Bursts
Burst # Burst Suffix Description
0 CONTROL_Burst_Cal_DcBias Calibrates the DC Bias that can appear in the current and voltage sense paths.
1 CONTROL_Burst_Cal_Region_MassDetect Calibrates the MassDetect algorithm and updates burst 19.
2 CONTROL_Burst_Cal_Region_1 Calibrates a frequency range and updates bursts 8-11 and 16.
3 CONTROL_Burst_Cal_Region_2 Calibrates a frequency range and updates bursts 12-15 and 17.
5 CONTROL_Burst_Cal_Region_Temp Calibrates the Temperature Constant. Single frequency measurement; Freq_start = Freq_stop.

The calibration burst can be configured for different types of systems. This user guide lists the setup for a system with two modes of vibration or two frequency ranges.