176
F8.10
Closed loop preset freq.
0.00
~
upper limit freq.
0.00
F8.11
Preset freq. hold time
0.0
~
3600.0s
0.0
This function code defines the driver running frequency and time before PID control operates. In some control system,
for a fast arrival of controlled object at preset value, these function codes can be set to force the driver to output specific
value of F8.10 and F8.11, which means operate the PID controller to increase response speed when controlled object is
approaching the controlled target. As showed in the following figure.
Fig. F8-4 Closed Loop Preset Frequency
F8.12
Sleep mode
0
~
2
1
0
:
invalid
1
:
dormant when feedback pressure exceed or lower than threshold value
This
is
the
first
one
of
PID
sleep
mode,
as
showed
in
Fig.
F8-5.
2
:
dormant when feedback pressure and output frequency is stable.