ST9000 | Pump Control
To use the frequency inverter as a pump control, for example at a pressure sensor for the “actual pressure”, these parameters are required:
| Parameter | Value | Description |
|
F0.03 |
2 |
Frequency control via analog input, potentiometer to AI1 (GND, AI1, +10 V) |
|
F0.04 |
8 |
Switch auxiliary controlling of frequency to PID |
|
F0.07 |
34 |
Signal for main frequency/auxiliary frequency are added |
|
F0.11 |
1 |
Allow control through terminals / clamps |
|
E2.02 |
6 |
Insert the input for feedback signal on AI2 (transducter pressure on AI2) |
|
E2.00 |
1 |
Setpoint input via potentiometer to AI1 |
|
FC.02 |
10 |
Pressure deviation in [%] from setpoint, at which the pump will start |
|
F7.46 |
20.0 |
Hz Start fequency, at which the inverter will restart |
|
F7.47 |
5.0 |
Time delay at the start of the pump when pressure deviates |
|
F7.48 |
15.0 |
Hz Stop frequency at which the inverter switches to standby |
| F7.49 | 5.0 | Time delay to turn on the standby |