68 
 
b5-24 Sets the display value when run at the maximum frequency. 
b5-25 Sets the number of decimal places to display.. 
PID Target Display Digits  
0 ∶ No Decimal Places 
1 ∶ 1 Decimal Place 
2 ∶ 2 Decimal Places 
3 ∶ 3 Decimal Places 
    b5- 26 Frequency Reference Monitor Content During PID 
  Sets the content of the frequency reference monitor display (U4-08) when PID control is 
active. 
Frequency  Reference  Monitor 
Content During PID 
0: Frequency Reference after PID 
Monitor U4-08 displays the frequency reference increased or reduced for the PID output. 
1: Frequency Reference 
Monitor U4-08 displays the frequency reference value. 
  b5- 27    PID Output Reverse Selection 2 
Determines whether a negative PID output reverses the direction of drive operation. When the 
PID function is used to trim the frequency reference (b5-00 = 3 or 4), this parameter has no 
effect and the PID output will not be limited。 
PID Output Reverse Selection 2 
Note : Set in b1-03 for the stop reverse, set b5-27 is ignored 
0: Reverse Disabled 
Negative PID output will be limited to 0 and the drive output will be stopped. 
1: Reverse Enabled 
Negative PID output will cause the drive to run in the opposite direction. 
 
■ PID Fine-Tuning 
Follow the following instructions when the PID control parameters are set.