B5: Pid Control - YASKAWA U1000 Series Technical Manual

Timer Function Operation
■
When the timer function input closes for longer than the value set in b4-01, the timer output switches on. When the timer
function input is open for longer than the value set in b4-02, the timer output function switches off.
demonstrates the timer function operation.
Figure 5.22
Multi-function Contact
Input: Timer Function
Multi-function Contact
Output: Timer Function
■ b4-03 to b4-08: H2- ON-Delay and OFF-Delay Time
Sets the length of the delay time for contact outputs to open or close for the related functions set in H2-.
No.
b4-03
b4-04
b4-05
b4-06
b4-07
b4-08
Internal data of H2-01
Multi-Function Digital
Outputs of H2-01
Note: Even if the length of the off-delay time and on-delay time for multi-function digital outputs are each less than 100 ms, the
multi-function digital output closes for at least 100 ms.

◆ b5: PID Control

The drive has a built in PID (Proportional + Integral + Derivative) controller that can be used for closed loop control of
system variables such as pressure, temperature, and so on. The difference between the target and the feedback value
(deviation) is fed into the PID controller. The PID controller adjusts the drive output frequency in order to minimize the
deviation, providing accurate control of system variables.
P Control
■
The output of P control is the product of the deviation and the P gain so that it follows the deviation directly and linearly.
With P control, only an offset between the target and feedback remains.
I Control
■
The output of I control is the integral of the deviation. It minimizes the offset between target and feedback value that
typically remains when pure P control is used. The integral time (I time) constant determines how fast the offset is
eliminated.
YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
ON
ON
b4-01 b4-02
Figure 5.22 Timer Operation
Name
H2-01 ON Delay Time
H2-01 OFF Delay Time
H2-02 ON Delay Time
H2-02 OFF Delay Time
H2-03 ON Delay Time
H2-03 OFF Delay Time
ON
ON
b4-03 b4-04
Time period that the multi-function
digital output is closed ≥ 100 ms
ON
ON
b4-01 b4-02
Setting Range
0 to 65000 ms
0 to 65000 ms
0 to 65000 ms
0 to 65000 ms
0 to 65000 ms
0 to 65000 ms
ON
ON
b4-03 b4-04
Time period that the multi-function
digital output is closed < 100 ms
Time period that the multi-function
digital output is closed = 100 ms
5.2 b: Application
Figure 5.22
On (Closed)
Off (Open)
On (Closed)
Off (Open)
Default
0 ms
0 ms
0 ms
0 ms
0 ms
0 ms
On (Closed)
Off (Open)
On (Closed)
Off (Open)
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