YASKAWA Varispeed V7 Instruction Manual page 182

n164 Setting
3 Operator terminal: Voltage 0 to 10 V
4 Operator terminal: Current 4 to 20 mA
Note: When using an analog signal (0 to 10 V/4 to 20 mA) input to the CN2
terminal of the JVOP-140 Digital Operator as the target or feedback
value of PID control, do not use it as a multi-analog input. Constant
n077 (Multi-function Analog Input Function) must be set to 0 (disabled
in this case).
Proportional Gain (P), Integral Time (I), Derivative Time (D)
(n130, n131, n132)
Adjust the response of the PID control with the proportional gain (P),
integral time (I), and derivative time (D).
Constant
No.
n130 Proportional Gain (P)
n131
n132 Derivative Time (D)
Optimize the responsiveness by adjusting the constants while operat-
ing an actual load (machanical system). Any control (P, I, or D) that
is set to zero (0.0, 0.00) will not operate.
Upper Limit of Integral (I) Values (n134)
Constant
No.
n134 Upper Limit of Integral
Constant n134 prevents the calculated value of integral control from
exceeding a specific amount. There is normally no need to change the
setting.
Reduce the setting if there is a risk of load damage, or of the motor
going out of step by the Inverter's response when the load suddenly
changes. If the setting is reduced too much, the target value and the
feedback value will not match.
Set this constant as a percentage of the maximum output frequency with
the maximum frequency as 100%.
Name
Integral Time (I)
Name
Values
7. Programming Features
Description
Unit Setting
Range
Multi- 0.0 to 25.0
ples
1.0 s 0.0 to 360.0
1.0 s 0.00 to 2.50
Unit Setting
Range
% 0 to 100
Factory
Setting
1.0
1.0
0.00
Factory
Setting
100
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