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Dancer control detail
(4)
Integral clamp at positive polarity (Pr. 709)/integral clamp at negative polarity (Pr. 710)
Limit level of PID integral control action can be set from 0 to 100% with parameters.
If Pr. 709 Integral clamp (positive polarity) is set while Pr. 710 Integral clamp (negative polarity) is not set, the setting in Pr. 709
becomes the clamp value in positive and negative polarity.
Pr. 709
9999
9999
0 to 100%
0 to 100%
(5)
PID differential time (Pr. 134)
Set the differential time of differential (D) action. Td is the time required for (D) to provide the same manipulated variable as
that for the proportional (P) action. As the differential time increases, greater response is made to a deviation change.
(6)
PID gain setting for under-set point value (Pr. 135 to Pr. 137)
Parameter
Number
PID proportional band for
135
under-set point value
PID integral time for
136
under-set point value
PID differential time for
137
under-set point value
PID gain can be set individually with Pr. 135 to Pr. 137 when deviation of dancer roll position signal (terminal 1) is negative
against the desired set point. When the setting is 9999, settings in Pr. 129, Pr. 130, Pr. 134 are active independently of
negative or positive deviation.
26
Pr. 710
9999
0 to 100%
9999
0 to 100%
Name
Setting Range
0.1 to 1000%, 9999
0.1 to 3600s, 9999
0.01 to 10s, 9999
Integral clamp
(positive polarity)
100%
100%
Setting in Pr. 709
Setting in Pr. 709
Increments
0.1%
0.1s
0.01s
Integral clamp
(negative polarity)
100%
Setting in Pr. 710
Setting in Pr. 709
Setting in Pr. 710
Initial
Remarks
Value
9999
Pr. 129 when 9999 is set.
9999
Pr. 130 when 9999 is set.
9999
Pr. 134 when 9999 is set.
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