Delta DVP-ES2 User Manual download pdf (Page 364)

100

101

DVP-ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

3-248

Where

() () ()

tPV-tSVtE =

y Control diagram:

G(s)

1/S

1/T

PID operation is within dotted area

Notes and suggestion:

1. S

+ 3 can only be the value within 0 ~ 30,000.

2. There are a lot of circumstances where PID instruction can be applied; therefore, please

choose the control functions appropriately. For example, when users select parameter

auto-tuning for the temperature (S

+ 4 = K3), the instruction can not be used in a motor control

environment otherwise improper control may occur.

3. When you adjust the three main parameters, K

, K

and K

+ 4 = K0 ~ K2), please adjust K

first (according to your experiences) and set K

and K

as 0. When the output can roughly be

controlled, proceed to increase K

and K

(see example 4 below for adjustment methods). K

100 refers to 100%, i.e. the proportional gain to the error is 1. K

< 100% will decrease the

error and K

> 100% will increase the error

4. When temperature auto-tuning function is selected(S

+ 4 = K3, K4), it is suggested that

store the parameters in D register in latched area in case the adjusted parameters will

disappear after the power is cut off. There is no guarantee that the adjusted parameters are

suitable for every control requirement. Therefore, users can modify the adjusted parameters

according to specific needs, but it is suggested to modify only K

or K

5. PID instruction has to be controlled with many parameters; therefore care should be taken

when setting each parameter in case the PID operation is out of control.

Example 1: Block diagram of application on positioning (S

+4 = 0)

PID

Encoder

Position instruction

(SV)

Controlled

device

1 2 ... 359 360 361 362 363 364 365 366 367 368 369 ... 701 702

Delta DVP-ES2 User Manual Page 364

Comments to this Manuals