5
DETAILED PARAMETER DESCRIPTION
Description:
It adjusts the full scale of the corresponding parameter programmed for the online graphic function.
Table 5.59: Adjust of the full scale of the on-line graphic function
P0516 ... P0517
Full Scale
Motor speed reference
P0208
Motor speed
P0208
Motor Current
P0295
Motor Frequency
P0403
Output voltage
P0296
Motor Torque
(P0295 / P0401) x 100 %
Inverter output power
1,732 x (P0295 x P0296)
Value of process variable (PID)
100 %
P0520 - PID proportional gain
P0521 - PID integral gain
P0522 - PID differential gain
P0523 - PID ramp time
Adjustable range: P0520 = 0.000 to 7.999
P0521 = 0.000 to 9.999
P0522 = 0.000 to 9.999
P0523 = 0.0 to 999.0 s
Factory setting: P0520 = 1.000
P0521 = 1.000
P0522 = 0.000
P0523 = 3.0 s
Acesso: Menu → Configurations → Functions → PID
Description:
Some examples of initial settings for the PID Regulator and Ramp Time for some applications mentioned in
Section 6.1 PID REGULATOR on page 6-1, are shown in Table 5.59 on page 5-85.
Table 5.60: PID initial gain setting suggestions
Gains
Time
Type
Proportional
Integral
Differential
PID Ramp
of action
Process Variable
P0520 P0521 P0522 P0523 P0527
Pneumatic
system
pressure
1
0.043 0.0 3
0 = No
Pneumatic
system flow
1
0.037 0.0 3
0 = No
Hydraulic
system
pressure
1
0.043 0.0 3
0 = No
Hydraulic
system flow
1
0.037 0.0 3
0 = No
Temperature
2
0.004 0.0 3
See Note
Level
1
See note
0.0 3
See note
Note:
For temperature and level, the action type setting will depend on the process. For level control, for instance,
if the inverter drives the motor that pumps fluid out of the reservoir, the action will be reverse because when
the level increases the inverter must increase the motor speed in order to lower the level, otherwise, when the
inverter drives a motor that pumps fluid into the reservoir, the action will be direct.
In case of level control, the integral gain adjustment will depend on the time required for the reservoir to pass
from the minimum acceptable to the desired level, in the following conditions:
MVW3000 | 5-85
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