Fuling Inverter DZB200 Series User Manual page 34

DZB Series
Func tio n
Name
Cod e
～
115.0 140.0%(s tand ar d DC bus
volta ge) 380 V
Brake Thr es hold
F4.1 6
Va lue Voltage
～
115.0 140.0%(s tand ar d DC bus
volta ge) 220 V
This function is to set up the initiative bus voltage of dynamic braking, and properly regulating this
value can result in an effective brake to the load.
Func tio n
Name
Cod e
～
0.1 99 9.9%
Speed displ ay
Spee d=1 20 runni ng
F4.1 7
ratio
frequ ency F4.1 7/po le number
× ×
Speed=120 running frequency F4.17/pole number
This function i s used to calibrate speed display error, it has no impact on actual speed.
PID control is one method normally used to process control, holding the control value to the target
value by the negative feedback system which regulates the inverter output fre quency by means of
proportion, integration and differential operations on the difference between the control value feedback
signal and the target value signal. It is applic able to the process controls such as flow control , pressure
control and temperature control and so on. The control functional block diagram is shown as follows:
Given Value
PID Control
(Percentage)
(Percentage)
Filter
F
Fig.6-18 Process PID Functional Block Diagram
Func tio n
Name
Cod e
：
0 Given by Keyboard(F4.19)
：
1 Given by Analog Channel VI
：
PID setpoint 2 Given by Analog Channel CI
F4.18
Sources Op tion
：
3 Given by Rem ote
Com munication
：
4 Multi-s eg s etpo int
- 61-
Chapter 6 Parameter Description
Default
Setting Range
Value
13 0.0%
12 0.0%
Default
Setting Range
Value
×
10 0.0%
×
M
P
Output F
Feedback Value
Default
Setting Range
Value
0
DZB Series
When frequency source is chosen to be PID, i.e. F0.03 is chosen to be 5, these group functions are active.
This parameter is to determine the assignment channel of the proce ss PID target value.
The set target value of process PID is a relative value, and the set 100% is corresponding to the 100%
feedback signal of the system being controlled.
The system always performs the calculation ac cording to relative value (0-100%)
Note: If multistage input, it can be accomplish ed by means of setting F4 group parameters.
Function
N ame
Code
Pre se t PID setpoint ～
F4.19 0.0% 1 00.0%
When F4.08=0 is chosen, i.e. the target source is the keyboard, it is required to set this parameter.
The reference value of this parameter is the system feedback value.
Function
N ame
Code
：
0 VI Feedba ck
：
1 CI Feed back
PID Feedbac k
F4.20
Sourc es Option
：
2 VI+ CI Feedbac k
：
3 Communi cation feedb ac k
The PID feedback channel is chosen by this parameter.
Important: The assign ment channel and feedback channe l can not be in coincidence, otherwise PID is
unable to control effectively.
Function
N ame
Code
：
0 positive
PID Output C haracteristics
F4.2 1
Option
：
1 Pn egative
PID output is positive characteristic: when the feedback signal is bigger than the PID given signal, it
is required for the inverter output frequency to decrease to counterbalance the PID, for instance, the
winding tension PID control.
PID output is negative characteristic: when the feedback signal is bigger than the PID giver signal, it
is required for the inverter output frequency to increase to counterbalance the PID,for instance, the
unreeling tension PID control.
Function
N ame
Code
Pro portional gain (Kp) ～
F4.22 0.00 100.00
Inte gral time (Ti) ～
F4.23 0.01 10.00s
Differentia l time (Td) ～
F4.24 0.00 10.00s
- 62-
Chapter 6 Parameter Description
Default
Setting Range
Value
0.0 %
Default
Setting Range
Value
0
Default
Setting Range
Value
0
Default
Setting Range
Value
1.00
0.10s
0.00s
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