Specifications
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93
Sampling cycle T refers to the sampling cycle of
feedback value. The PI regulator calculates once
in each sampling cycle. The bigger the sampling
cycle is , the slower the response is.
Bias limit defines the maximum bias between the
feedback and the preset. PID stops operation
when the bias is within this range. Setting this
parameter correctly is helpful to improve the
system output accuracy and stability.
Figure 6-23 R elation ship between bias
limit and output frequency
Function
Function
Function
Function
code
code
code
code
Name
Name
Name
Name Setting
Setting
Setting
Setting range
range
range
range
F9.09
Feedback lost
detecting
value
0.0~100.0%
【 0.0% 】
F9.10
Feedback lost
detecting time
0.0~3600.0s
【 1.0s 】
When feedback value is less than F9.09
continuously for the period determined by F9.10,
the inverter will alarm feedback lost failure (PIDE).
Note:
Note:
Note:
Note: 100%
100%
100%
100% of
of
of
of F9.09
F9.09
F9.09
F9.09 is
is
is
is the
the
the
the same
same
same
same as
as
as
as 100%
100%
100%
100% of
of
of
of
F9.01.
F9.01.
F9.01.
F9.01.
FA
FA
FA
FA
Group
Group
Group
Group Simple
Simple
Simple
Simple PLC
PLC
PLC
PLC and
and
and
and
Multi-step
Multi-step
Multi-step
Multi-step Speed
Speed
Speed
Speed Control
Control
Control
Control
Simple PLC function can enable the inverter to
change its output frequency and directions
automatically according to programmable
controller PLC . For multi-step speed function, the
output frequency can be changed only by
multi-step terminals.
Note:
Note:
Note:
Note:
�
�
�
� Simple
Simple
Simple
Simple PLC
PLC
PLC
PLC has
has
has
has 16
16
16
16 steps
steps
steps
steps which
which
which
which can
can
can
can be
be
be
be
selected.
selected.
selected.
selected.
�
�
�
�
If
If
If
If F0
F0
F0
F0 .0
.0
.0
.0 7
7
7
7 is
is
is
is set
set
set
set to
to
to
to be
be
be
be 5,
5,
5,
5, 16
16
16
16 steps
steps
steps
steps are
are
are
are
available
available
available
available for
for
for
for multi-step
multi-step
multi-step
multi-step speed.
speed.
speed.
speed.
Otherwise
Otherwise
Otherwise
Otherwise only
only
only
only 15
15
15
15 steps
steps
steps
steps are
are
are
are available
available
available
available
(step
(step
(step
(step 1~15).
1~15).
1~15).
1~15).
Function
Function
Function
Function
code
code
code
code
Name
Name
Name
Name Setting
Setting
Setting
Setting range
range
range
range
FA.00 Simple PLC
0~2 【 0 】