How to get pump dry run protection function
2022-08-191.PD ES series multi-pump Dry running set
1.1 If all the pumps with one tank
Connect float switch/electrode with master VFD S3&DCM terminal ( Normally closed )
Set parameter F26.28=1 , F06.02=52
When happen dry running vfd will stop the motor and show error code E065
1.2 If one pump with one tank
Connect float switch/electrode with all VFDS(master, back up master, slave) S3&DCM terminal ( Normally closed )
Set all vfds parameter F06.02=8 , F06.10=100
When happen dry running vfd will stop the motor and show error code E00d
2.PD SS series single-pump Dry running set
Connect float switch/electrode with VFD S2&DCM terminal ( Normally closed )
Set parameter F26.28=1 , F06.01=52
When happen dry running vfd will stop the motor and show error code E065
3.PD S series solar power pump VFD Dry running set
Please note that this function only at terminal start mode, if use keypad/display start, it will not work.
S1&DCM connect the start switch
S2&S3 parallel connection float switch/electrode 1 pcs wiring , DCM connect another one pcs wireing.
F06.00=1,F06.01=8,F06.02=7,F06.10=10, F00.01=1 ,F00.06=0
When happen dry running VFD will stop the pump and show error code E00d
If you want to delay start when water back to normal water level after dry running, please go on set parametr ,F06.17=F05.20 = 120.0s( it means delay 120S start, max data 120),F05.19=20