INVT Goodrive300-21 Series Operation Manual page 40

Goodrive300-21 integrated machine for air compressor
Function
Name
code
selection
PID output
P09.03
characteristic selection
P09.04 Proportional gain (Kp)
P09.05 Integral time (Ti)
Detailed instruction
1: Reserved
2: Analog P2-feedback
3: Reserved
4: MODBUS communication feedback
5–7: Reserved
8: Pressure feedback for air compressor-specific
function
0: PID output is positive characteristic: namely,
the feedback signal is larger than PID reference,
which requires the inverter output frequency to
decrease to enable PID to reach balance, such
as tension PID control of winding.
1: PID output is negative characteristic: namely,
the feedback signal is less than PID reference,
which requires the inverter output frequency to
increase to enable PID to reach balance, such as
tension PID control of unwinding.
It determines the adjustment intensity of the
whole PID regulator, the larger the value of P, the
stronger the adjustment intensity. If this
parameter is 100, it means when the deviation
between PID feedback quantity and reference
quantity is 100%, the adjustment amplitude of
proportional controller (ignoring integral and
differential effect) against output frequency
command is the maximum output frequency
(P00.03).
Setting range: 0.00–100.00
It determines the speed of integral adjustment
made by PID regulator against the deviation of
PID feedback quantity and reference quantity.
When the deviation between PID feedback
quantity and reference quantity is 100%, the
adjustment quantity of integral regulator (ignoring
integral and differential effect), after undergoing
continuous adjustment during this time period,
can reach the maximum output frequency
(P00.03)
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37
Function instruction
Default
Modify
value
○
0
○
10.00
○
2.00s