About AquaPhase™ Products - AP210/410

AquaPhase AP Series pump converters are purpose-built phase converting variable frequency drives designed specifically for operating three-phase pumps on single-phase service.

Input Module
The input stage is a power factor corrected, voltage boosting rectifier with L/C filter. Models can be specified for either 240V or 480V single-phase input.

Low Input Harmonics
Electronic power factor correction on the input module allows the converter to draw the input current as a sine wave, eliminating the harmonics associated with diode bridge rectifiers. Input line reactors and harmonic filters are never required and installations should easily comply with IEEE519, the international standard for allowable harmonic distortion on utility mains.

Voltage Boosting Unlike a diode bridge rectifier, the input module can significantly boost the DC bus voltage. This allows models with 240V input to produce 480V three-phase output.

Inverter Output
The output is 480V three-phase, pulse-width-modulated (PWM), variable voltage and frequency. The AP Series employs either v/f control or sensorless vector control for outstanding low-speed performance and control.

Keypad and Display
When equipped with the optional keypad and display, the AP Series converter is capable of many advanced, easy to use features. This powerful tool is easy to use and understand, with 32 character text messages and an intuitive interface specifically tailored for pumping applications. Functions include: • Operating status readouts • Ability to read measured values such as current, voltage and power • Clocks to record run time of the motor and the converter • Fault Logs • Adjustable parameters for motor and pump protection, constant pressure water systems, pump duplexing, motor control and more

Constant Pressure Water Systems
Only AquaPhase offers the choice of a digital or analog constant pressure system. Both systems provide smooth, steady control of pressure in response to fluctuating demand for water. Factory default settings of the constant pressure parameters provide satisfactory operation in most applications—simply install the sensors, set the desired pressure and begin pumping. If adjustments are required, a number of adjustable parameters allow fine tuning of the system to meet the users need.

Precharge Mode
Fills large plumbing systems at a slower pump speed to prevent sprinkler head blow-off or burst pipes when the system reaches the full point. AquaPhase automatically returns to normal operation when the precharge interval is terminated.

Duplex Pump Control
AquaPhase is equipped with a duplex pump feature that allows for integrated control of two pumps in the same water system. The duplex pump feature alternates the pumps on a regular schedule, and can call on the standby pump to maintain pressure in high flow conditions. No extra equipment is required—simply configure both pumps as constant pressure systems and activate the duplex mode feature.

Control Terminals
An AP Series converter is equipped with Control Terminals that allow a number of control functions, including remote ON/OFF control, analog input signals, analog output signals, remote notification and operation of constant pressure water systems