Water supply control card enables one inverter controls up to seven pumps automatically according to pressure feedback.

1. Timing control: set eight pressure reference in specific time period
2. PID control: constant pressure regulation
3. Control up to 7 different pumps automatically according to pressure feedback, store specific rated current separately
4. Energy saving function: stop automatically when flow is smaller
5. Timing switchover function: prevent pump from rust, balance every pump lifetime
6. Over pressure/under pressure alarm, record the faulty pump and switch the spare pump automatically.
7. Dormant control
8. Built-in RS 232
9. Liquid level detection and control