Connecting the frequency converter part 9

Connecting the Frequency Converter for Adjusting the Performance of Exhaust Fan

Connection diagram:

image_alt_vfd

image_alt_vfd

Settings for Frequency Converter Operation with Blower Fans and Exhaust Fans (for VLT Micro Drive)

Table 1: Settings for the first parameter set (automatic mode)

Parameter Code

Parameter Name

Parameter Value

0-10

Active Set

[9] Multi Set-up – operation with multiple parameter sets

Perform preliminary settings as per the section "Initial Parameterization of the Frequency Converter and Basic Parameters"

3-02

Min Command

[0] min working level or min signal level from the sensor (see sensor labeling)

3-03

Max Command

[10] max working level or max signal level from the sensor (see sensor labeling)

3-15

Task Source 1

[0] No function – no (not used, otherwise the speed command will be the sum of tasks from sources 3-10, 3-15, and 3-16)

3-16*

Task Source 2

[0] No function – no (not used, otherwise the speed command will be the sum of tasks from sources 3-10, 3-15, and 3-16)

5-12*

Digital Input Function Terminal 27

[2] – coast inverse – not used (otherwise, under factory settings, the function is coast inverse – i.e., when there is no signal from terminal 12 at terminal 27, the mechanism in coast mode (start command is ignored))

5-11*

Digital Input Function Terminal 19

[23] – set up select bit 0 – parameter selection for automatic/manual modes

6-91

Analog Output

[12] Feedback – feedback signal

2-10

Braking Function

[1] Resistor brake – braking with braking resistor

1-00*

Configuration Mode

[3] Process – PI controller mode

7-20*

Task Source for PI Controller (for VLT Micro)

[2] Analog input 60 – analog input terminal 60

7-30

Normal/Inverted Operating Mode of Controller

[0] normal (mechanism speed is higher with a + error (task – signal from the sensor)) (pressure)

7-33*

Proportional Coefficient of the PI Controller

[1] – adjustable for application

7-34*

Integral Coefficient of the PI Controller

[8] – adjustable for application

3-100*

Integral Coefficient of PI Regulation

Task % from 3-03 – task support level in % from maximum value

* Be sure to enter/check the values of these parameters

Table 2:

Settings for the second parameter set (manual mode)

Parameter Code

Parameter Name

Parameter Value

0-10

Active Set

[9] Multi Set-up - operation with multiple parameter sets

Perform preliminary settings as per the section "Initial Parameterization of the Frequency Converter and Basic Parameters" (pages 50–51)

3-02

Min Command

[0] min working level or min signal level from the sensor (see sensor labeling)

3-03

Max Command

[10] max working level or max signal level from the sensor (see sensor labeling)

6-91

Analog Output

[12] Feedback – feedback signal

2-10

Braking Function

[1] Resistor brake – braking with braking resistor

1-00*

Configuration Mode

[3] Process – PI controller mode

6-12

Terminal 53 Low Voltage

[0] – lower range of analog input 1 (lower signal level indicated on the sensor)

6-13

Terminal 53 High Voltage

[10] – high range of analog input 1 (upper signal level indicated on the sensor)

6-14

Terminal 53 Low Command

[0] – low command of analog input 1 (lower measured parameter level indicated on the sensor)

6-15*

Terminal 53 High Command

[10] – high command of analog input 1 (upper measured parameter level indicated on the sensor)

7-20*

Task Source for PI Controller (for VLT Micro Drive)

[2] Analog input 60 – analog input terminal 60

7-30

Normal/Inverted Operating Mode of Controller

[0] normal (mechanism speed is higher with a + error (task – signal from the sensor)) (pressure)

7-33*

Proportional Coefficient of the PI Controller

[1] – adjustable for application

7-34*

Integral Coefficient of the PI Controller

[8] – adjustable for application

* Be sure to enter/check the values of these parameters