SLAU915 May   2024 ULC1001

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5. 1.5 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Hardware Information
    2. 2.2 Connection Procedure
  8. 3Software
    1. 3.1 GUI Setup
    2. 3.2 System Overview
      1. 3.2.1 System ISR Period
      2. 3.2.2 System Drive Voltage
      3. 3.2.3 System Calibration
        1. 3.2.3.1 DC Bias Calibration
        2. 3.2.3.2 Temperature Calibration
        3. 3.2.3.3 Auto Sense Calibration
        4. 3.2.3.4 Cleaning and Power Calibration
      4. 3.2.4 System Cleaning
      5. 3.2.5 System Diagnostics
    3. 3.3 GUI Overview
      1. 3.3.1 GUI Top Level Layout
        1. 3.3.1.1 North Pane
        2. 3.3.1.2 South Pane
        3. 3.3.1.3 Center Pane
      2. 3.3.2 High Level Page
        1. 3.3.2.1 Burst Parameters
        2. 3.3.2.2 Calibration Settings
          1. 3.3.2.2.1 Voltage and Current Sense Circuitry
        3. 3.3.2.3 Cleaning Mode Settings
          1. 3.3.2.3.1 Auto-Cleaning
          2. 3.3.2.3.2 Water Cleaning
          3. 3.3.2.3.3 Deice Cleaning
          4. 3.3.2.3.4 Mud Cleaning Mode
        4. 3.3.2.4 Power and Diagnostic Settings
      3. 3.3.3 Register Map Page
      4. 3.3.4 I2C Configuration Page
      5. 3.3.5 GUI Functions
        1. 3.3.5.1 Monitor Communication Status
        2. 3.3.5.2 Load and Save Configuration Files
          1. 3.3.5.2.1 MSP430 Firmware Programming
        3. 3.3.5.3 Re-initialize System
        4. 3.3.5.4 Fault and Flag Monitoring and Clearing
        5. 3.3.5.5 Run Calibration
        6. 3.3.5.6 Run Cleaning Modes
        7. 3.3.5.7 Run Diagnostic Mode
        8. 3.3.5.8 Run Abort
        9. 3.3.5.9 Script Recording
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks

3.2.3 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-DRV2911 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 4-14.

Table 3-2 Valid Calibration Bursts
Burst #Burst SuffixDescription
0CONTROL_Burst_Cal_DcBiasCalibrates the DC Bias that can appear in the current and voltage sense paths.
1CONTROL_Burst_Cal_Region_MassDetectCalibrates the MassDetect algorithm and updates burst 19.
2CONTROL_Burst_Cal_Region_1Calibrates a frequency range and updates bursts 8-11 and 16.
3CONTROL_Burst_Cal_Region_2Calibrates a frequency range and updates bursts 12-15 and 17.
5CONTROL_Burst_Cal_Region_TempCalibrates 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.