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  • No : 7607
  • Date of Issue : 2021/12/07 10:15
  • Last Updated : 2022/01/14 13:01
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(EHF) TD calibration

(EHF) TD calibration
EHF-E, U, L Series
Servo Controller 4830
Category : 

Answer

Perform TD (transducer) calibration.
 
1. Pressing the [Calibration] button on the setup screen opens the calibration menu screen as shown on the right.
  Select a TD to be calibrated on this screen. Then, the following setup screen appears.
 
2. Perform initial setup.
  
  1) Select a TD name.
  2) Specify the TD rating. The setting range is 0.1 to 9999.9. Set the value corresponding to 100 billion when using Digital FB type TD
  3) Select a unit.
  4) Select a digital filter frequency.
  5) Specify whether to enable or disable control. If you select “Invalid”, the control mode cannot be changed. For a TD that is not used for control, select “Invalid".
  HINT: When using Digital FB type TD, move to ‘Sensor ROM Update, after setting the above data.
  HINT: When the display language is set to Japanese, only a Japanese name can be selected. To specify an English name, change the display language to “English”.
 
3. Press the [Next] button to go to the excitation/sensitivity setup screen.
  
  1) Specify the excitation output value. Select a value sui table for the sensor specifications.
  2) Enter the sensor’s output rating.
  3) Select gain. Gain will be aut o matically selected depending on the entered output rating.
  4) Specify the sensor polarity. Check the measurement data to verify that the polari ty is correct.
 
4. Press the [Next] button to go to the phase setup screen Phase setup is enabled only for the AC amplifier. For the DC amplifier or VIN amplifier , skip to the next step.
  
  1) When the AC amplifier is used, set the sensor output close to the rated value, and press the [Auto Adjust] button. Then, the controller automatically performs phase adjustment.
 
5. Press the [Next] button to go to the zero adjustment screen.
  
  1) Set the sensor in the neutral condition, and press the [ Auto Adjust] button. Then, the controller automatically performs zero adjustment.
 
6. Press the [Next] button to go to the span adjustment screen.
  
  1) Set the sensor output at the rated value, and press the [Auto Adjust] button. Then, the controller automatically performs span adjustment.
 
7. Press the [Next] button to go to the linearize adjustment screen.
  
  1) Before executing linearize adjustment, press the [Setting] button to select the number of adjustment points. The number of adjustment points can be selected from the following options:“1 point”, “2 points”, “4 points”, “5 points”, “10 points” and “20 points”.
  2) With the sensor set in the neutral condition, select “zero” from the list, and press the [Register] button to execute final zero point adjustment.
  3) With the sensor output set at the adjustment point, press the [Register] button to register the adjustment value. The linearize data list can be scrolled with the jog dial.
  4) After entering all adjustment values, press the [Update] button. The linearize adjustment results become valid.
  5) The measurement data list above the [Register] button indicates the value measured before adjustment (on the upper stage), and
the value measured after adjustment (on the lower stage).
 
  NOTE:
    • If the zero point is deviated by 0.1% or more of the rated value, final zero-point adjustment cannot be performed. Press the [Back] button twice to perform the zero adjustment procedure again.
    • For a point not to be adjusted, press the [Clear] button to set it at “zero”. Then, linearize data will be interpolated when updated.
    • The controller retains previous data until they are updated with the [Update] button. If you return to the previous screen by pressing the [Back] button, the linearize data will be restored to the previous data.
 
8. Press the [NEXT] button to go to the sensor ROM update screen.
  
  1) Specify the lock level. Setting the lock level enables calibration data to be protected. 
    The lock level is classified into four types: LV1 through LV4.
    The limitation on each lock level is as follows:
    LV4: All settings must not be changed.
    LV3: Only sensor name and filter setting can be changed.
    LV2: In addition to the parameters that can be changed in LV3, software polarity, zero adjustment and linearize adjustment settings can be changed.
    LV1: All settings can be changed.
  2) Specify the auto lock ON/OFF status. When the auto lock function is set to ON, the lock level will be automatically set to “LV4” after the calibration scr een is closed, even after the lock level is changed.
  3) Pressing the [ROM Update] button write new data into the sensor ROM. It takes approx. 8 seconds to write the data.
  NOTE: To protect calibration data, set the lock level to "LV4”, and set the auto lock function to ON.
    If you turn OFF the controller power switch without updating the ROM, the calibration data will not be stored.

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