DRV-28 inverter
s Function parameter list
-178-
Function
code
Name
Detailed parameter description
Default
value
Modi
fy
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
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
○
P09.06
Derivative time
(Td)
It determines the intensity of the regulation made on
the change rate of deviation between PID feedback
and reference by PID regulator. If feedback changes
by 100% during this period, the regulation of
differential regulator (ignoring integral and differential
actions) is Max. output frequency (P00.03)
The longer the derivative time, the stronger the
regulation intensity.
Setting range: 0.00–10.00s
0.00s
○
P09.07
Sampling cycle
(T)
It means the sampling cycle of feedback. The
regulator operates once during each sampling cycle.
The larger the sampling cycle, the slower the
response.
Setting range: 0.001–10.000s
0.001s
○
P09.08
Limit of PID
control deviation
It is the max. allowable deviation of PID system
output value relative to closed-loop reference value.
Within this limit, PID regulator stops regulation. Set
this function code properly to regulate the precision
and stability of PID system.
Setting range: 0.0–100.0%
0.0%
○
