Shihlin electric SE3 Series User Manual

PG feedback parameter group 09
PARAMETER DESCRIPTION 189
5.9.1 PID function selection
 Inverter can control flow, volume or pressure by PID control. By using analog signal or parameter setting as target
source, and with analog signal as feedback source, it forms a closed loop control system.
Parameter
Name
Default
Setting Range
Content
08-00
P.170
PID function selection
0
0
Off
0x
Parameter 08-03(P.225) as target value.
1x
Terminal 2-5 input as target source
2x
Terminal 4-5 input as target source
3x
Reserved
4x
Terminal HDI input as target source
x1
Terminal 2-5 input as feedback source
x2
Terminal 4-5 input as feedback source
x3
Reserved
08-01
P.171
PID feedback control
method
0
0
Negative feedback control.
1
Positive feedback control.
PID function selection

During PID control, frequency displayed on screen is inverter output frequency

For terminal 2-5 and terminal 4-5 input signal filtering please refer to parameters 02-10
(P.60)
02-22
(P.528)
.
Note: When setting target source and feedback source, please pay attention to 08-00(P.170) and
02-00(P.500)~02-01(P.501) setting, terminal priority : 2-5 > 4-5 .
5.9.2 PID parameter group 1
 By setting PID parameters users can realize automatic adjustment of process control.
Parameter
Name
Default
Setting Range
Content
08-02
P.241
PID sampling period
20ms
0~6000ms
Feedback signal sampling period.Adjuster computes once
every sampling period. The longer the sampling period, the
slower the response.
08-03
P.225
PID target value
20%
0~100%
When ten-digit of 08-00 (P.170) is set to 0 and single-digit is
not set to 0, the target value is set by 08-03(P.225)
08-04
P.172
Proportional gain
20.0%
0.1%～1000.0%
This gain determines the proportion controller’s response on
feedback deviation. The greater the gain, the faster the
response. Gain set too high will cause vibration.
08-05
P.173
Integral time
1.00s
0～60.00s
This parameter determines integral controller’s integral time.
When integral gain is too high, integral effect will be too
weak to eliminate steady state deviation. When integral gain
is rather small, the system vibration time will increase, and
too small integral gain will cause system unstable.
Setting

Shihlin electric SE3 Series Specifications

General

Brand	Shihlin electric
Model	SE3 Series
Category	Inverter
Language	English