E6581381

2) Types of PID control interfaces

 

Process quantity input data (frequency) and feedback input data can be combined as follows for the PID

 

control of the VF-FS1:

 

 

 

Process quantity input data (frequency setting)

Feedback input data

 

Setting method

Frequency setting mode selection

PID control

 

HOQF/ H

H

 

 

 

 

(1)

External analog setting



: External analog input

 

 

VIA (DC: 4-20mA / 0-10V)

VIA (DC:4-20mA / DC:0-10V)

 

 

 

 

(2)

External analog setting

 

 



 

 

 

VIB (DC: 0-10V)

: External analog input

 

 

 

 

(3)

Panel input setting Internal



VIB (DC:0-10V)

 

 

preset-speed setting

 

 

 

 

 

(4)

Serial communication



 

 

(5)

UP/DOWN from external



 

 

 

contact

 

 

 

 

 

 

(6)

Internal preset-speed setting

- (EOQF=0)

 

 

Note 1: About the setting of HOQF and H: Do not select the same terminal that is used feedback

 

 

terminal (VIA or VIB).

 

 

Note 2: When using VIA terminal, set H or H respectively to 52 or 53 to put out signals to RY-RC

6

 

or FLA-FLB-FLC.

 

 

 

When using VIB terminal, set H or H respectively to 60 or 61 to put out signals to RY-RC

or FLA-FLB-FLC.

You can also specify a frequency agreement detection range (H). For more information, see section 6.3.5.

3) Setting PID control

Set "" or "2" in the extended parameter H (PID control)

(1) Set parameters CEE(acceleration time), and FGE (deceleration time) to the system fitting values.

(2) To limit the output frequency, set parameters WN (upper limit frequency) and NN (lower limit frequency). If process quantities are set from the operation panel, however, the process quantity setting range will be limited by the settings of WN and NN.

4) Adjusting the PID control gain level

Adjust the PID control gain level according to the process quantities, the feedback signals and the object to be controlled.

The following parameters are provided for gain adjustment:

Parameter

Setting range

Default setting

H (P-gain)

0.01-100.0

0.30

H (I-gain)

0.01-100.0

0.20

H (D-gain)

0.00-2.55

0.00

F-42

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Toshiba VF-FS1 Types of PID control interfaces, Setting PID control, Adjusting the PID control gain level