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CHAPTER 6 - DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter Unit Description / Notes
P520 0.0 to 999 %
PID Proportinal [ 100 ]
Gain 0.1(< 100)
1 (> 99.9)
P521 0.0 to 999 %
PID Integral [ 100 ]
Gain 0.1(< 100)
1 (> 99.9)
P522 0.0 to 999 %
PID Differential [ 0 ]
Gain 0.1(< 100)
1 (> 99.9)
The integral gain can be defined as being the time
required to vary the PI regulator output from 0 to P134,
That is given, in seconds, by the equation below:
t =
1600
P521.P525
For the following conditions:
- P040 = P520 = 0;
- Dix in automatic position.
P525 0.0 to 100.0 %
PID Regulator [ 0.0 ]
Set point 0.1 %
(Via Keys)
Provides the set point (reference) of the process via
keys and for PID regulator since P221 = 0
(local) or P222 = 0 (remote) and it has been set to
automatic mode. If it has been set to manual mode
the keys reference is provided by P121
If P120 = 1 (active backup), the value of P525 is
maintained at the last set value (backup), even when
the inverter is disabled or not energized.
P526 0.0 to 10.0 s
Process Varible [ 0.1 s ]
Filter 0.1
Sets the time constant of the process variable filter.
It is useful for noise filtering at the analog input AI1
(feedback of the process variable).
P527 0 to 1
Action Type of [ 0 ]
PID Regulator -
Defines the action type of the PID control.
Select according to the table below:
Increase
Increase
For this the
motor speed
must
Process
variable
requirement
Increase
Decrease
P527
to be
used
1(Reverse)
0 (Direct)
P527
0
1
Action Type
Direct
Reverse
Table 6.16 - PID action type configuration
Table 6.17 - Options operation description for P527
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