0 : Main Frequency Command
1 : Frequency Gain
2 : Output Frequency Lower Limit
3 : Auxiliary Frequency Command
4 : Output Voltage Bias
5 : Acc./Dec. Time Gain (Decrease Only)
6 : DC Braking (DB) Current
7 : Stall Prevention Level During Run
8 : PID Feedback
9 : PID Target
10: Differential PID Feedback
11 : Overtorque/ Undertorque Detection
18: Communication Mode 1
19 : Communication Mode 2
20:V/F separation voltage
Sets the terminal A1 primary delay filter time,
which can eliminate the interference