Applications
The SPEEDBOX frequency converter range consists of the DUO unit, for controlling three-phase or single-phase pumps using two inverters in a single cabinet, and the DUO SET unit, also for two pumps, with the main one controlled by an inverter and the auxiliary one through a power relay. The functionalities of both are exactly the same as in the AIG VV range.
Series
SPEEDBOX DUO / DUO SET
Characteristics
– ART (Automatic Reset Test) function. If the device has been stopped due to the action of the dry running protection system, the ART tries to connect the pump at a scheduled interval in case the water supply has been restored.
– Automatic reset system after power interruption. The system activates in the same state it was in before the interruption, maintaining the configuration parameters.
– 4-20mA output for the external pressure transducer.
– External pressure transducer 0-10 bar or 0-16 bar – as per order with 4-20 mA input.
– Control and information panel with LCD screen.
– Cooling by natural or forced convection, depending on the model.
– Aluminum heat exchanger.
– Operational controls log. Information on: operating hours, start counter, power connection counter.
– Alarm log. Information on the type and number of alarms generated since the device was started.
– Electronic input for detecting the minimum water level for optional tank suction.
– This system is independent of the electronic dry running protection system.
– EMC certified residential class C1 or C2 depending on the model.
Protections
– Control and safety system against overcurrents.
– Dry running protection system for the electric pump due to lack of water.
– Abnormal supply voltage.
– Short circuit.
