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Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual Page 592

Fr-a800 series.
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Pr.
Name
45
Second deceleration
F021
time
128
PID action selection
A610
129
PID proportional band
A613
130
PID integral time
A614
131
PID upper limit
A601
132
PID lower limit
A602
133
PID action set point
A611
134
PID differential time
A615
609
PID set point/deviation
A624
input selection
610
PID measured value
A625
input selection
1134
PID upper limit
A605
manipulated value
1135
PID lower limit
A606
manipulated value
Initial value Setting range
Set the deceleration time during dancer control.
In dancer control, this parameter becomes the deceleration time of the
0 to 3600 s
main speed.
9999
This setting does not operate as the second deceleration time.
9999
Pr.44 is the deceleration time.
0
No PID action
40
PID reverse action
41
PID forward action
0
42
PID reverse action
43
PID forward action
Others
Refer to
If a narrow proportional band is set (small parameter setting value), the
manipulated amount changes considerably by slight changes in the
measured value.
0.1 to 1000%
As a result, response improves as the proportional band becomes
100%
narrower, though stability worsens as shown by the occurrence of hunting.
Gain Kp=1/proportional band
9999
No proportional control
With deviation step input, this is the time (Ti) used for obtaining the same
manipulated amount as proportional band (P) by only integral (I) action.
0.1 to 3600 s
Arrival to the set point becomes quicker the shorter an integral time is set,
1 s
though hunting is more likely to occur.
9999
No integral control
Set the upper limit.
The FUP signal is output when the feedback value exceeds this setting.
0 to 100%
The maximum input (20 mA/5 V/10 V) of the measured value (terminal 4)
9999
is equivalent to 100%.
9999
No function
Set the lower limit.
The FDN signal is output when the measured value (terminal 4) falls below
0 to 100%
the setting range.
9999
The maximum input (20 mA/5 V/10 V) of the measured value is equivalent
to 100%.
9999
No function
0 to 100%
Set the set point during PID control.
9999
9999
Input of set point by terminal selected by Pr.609
With deviation ramp input, this is the time (Td) used for obtaining the
manipulated amount only by proportional action (P).
0.01 to 10 s
Response to changes in deviation increase greatly as the differential time
9999
increases.
9999
No differential control
1
Input of set point from terminal 1
2
Input of set point from terminal 2
3
Input set point from terminal 4
2
Input of set point, deviation value via CC-Link/CC-Link IE Field Network
4
communication
5
Input of set point by PLC function
1
Input of measured value from terminal 1
2
Input of measured value from terminal 2
3
Input of measured value from terminal 4
3
Input of set point, deviation value via CC-Link/CC-Link IE Field Network
4
communication
5
Input measured value by PLC function
100%
0 to 100%
Set the upper limit of PID action.
100%
0 to 100%
Set the lower limit of PID action.
Description
Additive method: Fixed
Additive method: Fixed
Additive method: Ratio
Additive method: Ratio
page
570.
5.14 (A) Application parameters
1
2
For dancer control
3
4
5
6
7
8
9
10
591
5. PARAMETERS

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