Hyundai N700E Instruction Manual page 99

N700E INSTRUCTION MANUAL
A65

0: Always On

1: On Only when VFD is running FAN is running for 30 sec after VFD stop

A70 ~ A85

The PID function enables the system running at the set point automatically by regulating the process
using the system feedback, error term. It is used for Cubic Feet of Air it moves per minute (CFM) for fan
application, Gallons per minute (GPM) for pump application, pressure control, heating application, etc.
PID Functional Description
 Set Point: Desired System Output Value
 Error: Difference between System output and Set Point
 Proportional (P) Term: Current Error
 Integral (I) Term: Accumulated Past Error
 Derivative (D) Term: Predicted Future Error based on current rate of changes
A70

0: PID Control Disabled

1: PID Control Enabled

2: Forward Feed Enabled

A71

Range: 0.00 ~ 100.0 % in 0.01 %

A72

0: Keypad Potentiometer

1: Input Terminal

2: Keypads(Up/Down Keys)

3: Remote Control (Communication)

Fan Operation Mode
Select fan operation
 Related Parameters:
Proportional, Integral, Differential (PID) Function
Basic PID Overview
P = K
e(t)
0 p
t
I = K
e(t) dt
u t
0 i
( )
o
d
D = K e(t)
dt
0 d
+
u ( t ) = K
e (t )
p
PID Function Select
Select PID function type
 Related Parameters: A70~A85
PID Setpoint
PID target value setpoint
 Related Parameters: A70~A85
PID Setpoint Source
Select PID Setpoint Source
 Related Parameters: A70~A85
Process
Current Error
Proportional
Accumulated Past Error
Integral
Predicts Future Error
Derivative
Based on current rate
of changes
d
t
+
K K e t
e ( t ) dt (
i d
dt
o
3-26
Set Point
+
Error, e(t)
_
)