1, Load feature
(1) PID function is required.
(2) There is a pressure sensor in the system.
(3) In theory, if the running frequency is H1, then Energy Saving = 1-(H1/50)3
2, Requests for frequency inverters (VFD)
(1) Soft start the motor, reduce the surge current.
(2) PID control should be stable and accurate.
3, Typical wiring diagram
4, Parameters setting list
No. | Function codes | Default | Setting value | Explanation |
1 | F00.01 | 0 | 1 | Start / stop by external signal (If necessary) |
2 | F00.06 | 0 | 8 | PID control |
3 | F10.00 | 0 | 0 | PID target value set by F9-01 |
4 | F10.01 | 50% | -- | Set suitable value depend on system |
5 | F09.50 ~ F09.52 | -- | -- | Set suitable dormancy and wake up parameters. |
5, Notices
(1) select a suitable pressure sensor, the calculation of Fb-01 as below if the pressure sensor measure range is 16bar (1.6Mpa), and the target pressure is 5bar (0.5Mpa), then F10.01=5/16*100%=31.3%.
(2) Maintenance regularly, pay attention to dust and humidity prevention.