Connecting the Frequency Converter for Adjusting the Performance of Exhaust Fan
Connection diagram:


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