Hyundai N700E Instruction Manual page 56

N700E INSTRUCTION MANUAL
Func-
code
A80 PID Output reverse
A81 PID scale factor
A82 Pre PID frequency(note2)
A83 Sleep frequency(note3)
A84 Sleep delay time(note3)
A85 Wake up frequency(note3)
Note 1) PID feedback control
The PID(Proportional, Integral, Differential) control functions can apply to controlling of fan, the air (water)
amount of pump, etc., as well as controlling of pressure within a fixed value.
[Input method of target value signal and feedback signal]
Set the reference signal according to the PID reference setting method(A72).
Set the feedback signal according to analog voltage input (0 to 10V) or analog current input (4 to 20mA).
To use analog current [OI-L] for the target value, set the [AT] terminal to ON.
[PID gain adjustment]
If the response is not stabilized in a PID control operation, adjust the gains as follows according to the
symptom of the inverter.
• The change of controlled variable is slow even when the target value is changed.
• The change of controlled variable is fast, but not stable.
• It is difficult to make the target value match with the controlled variable.
• Both the target value and the controlled variable are not stable.
• The response is slow even when the P gain is increased.
• The response is not stabilized due to oscillation even when the P gain is increased.
Run-
Name time
Edit
X
X
X
X
X
X
Description
Two options : select codes
0.... PID output reverse disable
1.... PID output reverse enable
PID scale factor (multiplier),
0.1 to 1000% in units of 0.1%
0.0 to Max Frequency in units of 0.01Hz.
When A82 equals "0", Pre-PID function is disabled.
0.00 to Max Frequency in units of 0.01Hz
0.0 to 30.0sec in units of 0.1sec
0.00Hz to Max Frequency in units of 0. 01Hz
4-15
Defaults
0
100.0%
0.00Hz
0.00Hz
0.0sec
0.00Hz
→ Increase P gain [A74]
→ Decrease P gain[A74]
→ Decrease I time [A75]
→ Increase I time [A75]
→ Increase D time [A76]
→ Decrease D time [A76]