TECHTOP TD350 - Page 189

TD350 Series VFD Function parameter list
-184-
Function
code
Name
Detailed parameter description
Default
value
Modify
communication
9: Programmable extension card
10: Reserved
Note: The reference channel and feedback channel
cannot overlap; otherwise, PID cannot be controlled
effectively.
P09.03
PID output
characteristics
0: PID output is positive characteristic: namely, the
feedback signal is larger than the PID reference,
which requires the VFD output frequency to
decrease for PID to reach balance, eg, tension PID
control of winding
1: PID output is negative characteristics: namely
the feedback signal is less than PID reference,
which requires VFD output frequency to increase
for PID to reach balance, eg, tension PID control of
unwinding.
0
○
P09.04
Proportional gain
(Kp)
This function code is suitable for proportional gain P
of PID input.
It determines the regulation intensity of the whole
PID regulator, the larger the value of P, the stronger
the regulation intensity. If this parameter is 100, it
means when the deviation between PID feedback
and reference is 100%, the regulation amplitude of
PID regulator (ignoring integral and differential
effect) on output frequency command is the max.
frequency (ignoring integral and differential
actions).
Setting range: 0.00–100.00
1.80
○
P09.05
Integral time (Ti)
It determines the speed of integral regulation made
on the deviation between PID feedback and
reference by PID regulator. When the deviation
between PID feedback and reference is 100%, the
regulation of integral regulator (ignoring integral and
differential actions), after undergoing continuous
regulation during this time period, can reach Max.
output frequency (P00.03)
The shorter the integral time, the stronger the
regulation intensity.
Setting range: 0.00–10.00s
0.90s
○