In the field of agricultural irrigation in greenhouse, frequency conversion control technology plays critical role in controlling of water amount and irrigation range. VFD is applied to control the water pump to regulate the water pressure, sprinkler irrigation scope and water amount. Therefore, the humidity of the greenhouse can be effectively controlled to adapt to the needs of crops while the energy is highly saved.

A vegetable production base in Shandong adopts two sets of SAJ PDM20 smart pump drive for water supply application. Featured by high protection level, this PDM20 smart pump drive provides an excellent operation performance even in a harsh farmland environment. The precision constant pressure control of this system is particularly appreciated by user.

• Considering the different requirements of water pressure for crop irrigation in batches, this PDM20 smart mini pump drive has less buttons for easy operation.
• Because of the high humidity in the greenhouse, IP65 rated enclosure with excellent protection can fully meet the protection requirements. Piggyback design saves the cost of control cabinet.
• Configured with functions of automatic startup when powered on and automatic reset when fault occurs, greatly saving labor cost and improving automation level.
• This PDM20 smart mini pump drive has dry run protection function, preventing the motor from dry run, overvoltage, overcurrent and overload, as well as short circuit.
• Through frequency adjustment and sleep mode, this smart pump drive can provide excellent energy saving performance.