Chapter 4 Parameters
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10.09
Treatment of the Erroneous Feedback Signals (for PID feedback fault)
Factory Setting: 0
Settings
0
Warning and RAMP to stop
1
Warning and COAST to stop
2
Warning and keep operating
AC motor drive action when the feedback signals (analog PID feedback) are abnormal
according to Pr.10.16.
Setting Pr.10.09 to 0: When the feedback signal fault occurs, it will display “FbE” on the digital
keypad and the motor will stop to 0Hz by Pr.01.10/Pr.01.12 setting. It needs to clear “RESET”
to clear the warning message.
Setting Pr.10.09 to 1: When the feedback signal warning occurs, it will display “FbE” on the
digital keypad and the motor will free run to stop. It needs to press “RESET” to clear the
warning message.
Setting Pr.10.09 to 2: When the feedback signal fault occurs, it will display “FbE” on the digital
keypad and the motor will keep running. The warning message can be cleared after the
feedback signal is normal.
Related parameters” Pr.10.00(PID Set Point Selection), Pr.10.01(Input Terminal for PID
Feedback), Pr.10.12(PID Offset Level) and Pr.10.13(Detection Time of PID Offset)
NOTE
The digital keypad is optional. Please refer to Appendix B for details. When using without this optional
keypad, the FAULT LED will be ON once there are fault messages or warning messages from the
external terminals.
10.10
Gain Over the PID Detection Value
Settings
0.0 to 10.0
Factory Setting: 1.0
This is the gain adjustment over the feedback detection value.
This parameter will affect Pr.00.04(setting 5) directly. That is Pr.00.04(setting 5) Display PID
analog feedback signal value (b) (%)= PID detection value X Gain Over the PID Detection
Value.
Related parameters: Pr.00.04(Content of Multi-function Display) and Pr.10.01(Input Terminal
for PID Feedback)
10.12
PID Offset Level
Unit: %
Settings
1.0 to 50.0%
Factory Setting: 10.0
This parameter is used to set max. allowable value of PID fault.
10.13
Detection Time of PID Offset
Unit: second
Settings
0.1 to 300.0 sec
Factory Setting: 5.0
This parameter is used to set detection of the offset between set point and feedback.
