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Parameter list
Parameter
Function
PID control
automatic
127
switchover
frequency
PID action
128
selection
PID proportional
129
band
130
PID integral time
131
PID upper limit
132
PID lower limit
PID action set
133
point
134
PID differential
time
Second
acceleration/
44
deceleration time
Second
45
deceleration time
86
Incre-
Initial
Name
ments
Value
0.01Hz
9999
1
0
0.1%
100%
0.1s
1s
0.1%
9999
0.1%
9999
0.01%
9999
0.01s
9999
5/10/
0.1/
15s
0.01s
0.1/
9999
0.01s
Range
Description
Frequency at which the control is
0 to 400Hz
automatically changed to PID control.
9999
Without PID automatic switchover function
0
PID control invalid
20
PID reverse action
21
PID forward action
40 to 43
Dancer control
50
PID reverse action
51
PID forward action
60
PID reverse action
61
PID forward action
If the proportional band is narrow
(parameter setting is small), the
manipulated variable varies greatly with a
0.1 to
slight change of the measured value.
Hence, as the proportional band narrows,
1000%
the response sensitivity (gain) improves
but the stability deteriorates, e.g. hunting
occurs. Gain Kp= 1/proportional band
9999
No proportional control
For deviation step input, time (Ti) required
for only the integral (I) action to provide the
0.1 to
same manipulated variable as that for the
proportional (P) action. As the integral time
3600s
decreases, the set point is reached earlier
but hunting occurs more easily.
9999
No integral control.
Upper limit value.
If the feedback value exceeds the setting,
0 to 100%
the FUP signal is output. The maximum
input (20mA/5V/10V) of the measured
value (terminal 4) is equivalent to 100%.
9999
No function
Lower limit value.
If the measured value falls below the
setting range, the FDN signal is output.
0 to 100%
The maximum input (20mA/5V/10V) of the
measured value (terminal 4) is equivalent
to 100%.
9999
No function
0 to 100%
Used to set the set point for PID control.
PID control
9999
Dancer control
For deviation lamp input, time (Td) required
for providing only the manipulated variable
0.01 to
for the proportional (P) action. As the
10.00s
differential time increases, greater
response is made to a deviation change.
9999
No differential control.
This parameter is the acceleration time of
the main speed during dancer control.
It will not function as second acceleration
0 to 3600/
time.
360s
* The setting range differs according to the
inverter capacity
(3.7K or less/5.5K, 7.5K/11K, 15K)
This parameter is the deceleration time of
0 to 3600/
the main speed during dancer control.
It will not function as second deceleration
360s, 9999
time.
Param
Param
eter
eter
Copy
Clear
Measured value
input (terminal 4)
Set value (terminal
2 or Pr. 133)
Deviation value
signal input
(L
W
,
ON
ORKS
CC-Link
communication)
Measured value,
set point input
(L
W
,
ON
ORKS
CC-Link
communication)
Terminal 2 input
voltage is the set
point.
Always 50%
All
Param
eter
Clear

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