New VASCO – VAriable Speed COntroller – Solar MP.

The inverter in MP (MultiPower) version can be powered in DC by solar panels or in AC by network or generator to ensure the functioning of the pump at any hour of the day.

This controls the peaks of water demand using AC input to avoid the oversizing of the photovoltaic system.
HMA accessory, used in combination with Solar MP models, manages independently the exchange from a source of energy to another on the basis of several options that can be select by the user:
• irradiance level
• hour of the day
• achievement of the requested daily range
• remote control trough digital command

Maximum flexibility.

When using surface pumps, VASCO Solar – VAriable Speed COntroller can be used for an irrigation system drawing water from a nearby water supply, or powering a pool pump at no cost.

When using submersible pumps, the device can fill tanks for watering livestock or simply irrigate lawns or crops.

MPPT: always the maximum power available.

Based on the varying conditions of solar irradiation and temperature, MPPT (Maximum Power Point Tracking) maximises the electrical power drawn from the panels and therefore the amount of water pumped.

The greater the solar irradiation the faster the pump’s rotation speed, and consequently water flow increases.

When solar irradiation decreases (due to clouds or the different times of day), the pump reduces frequency and therefore the flow, but it continues to provide water until the irradation falls below a minimum level necessary to ensure operation.

MPPT: always the maximum power available.

Based on the varying conditions of solar irradiation and temperature, MPPT (Maximum Power Point Tracking) maximises the electrical power drawn from the panels and therefore the amount of water pumped.

The greater the solar irradiation the faster the pump’s rotation speed, and consequently water flow increases.

When solar irradiation decreases (due to clouds or the different times of day), the pump reduces frequency and therefore the flow, but it continues to provide water until the irradation falls below a minimum level necessary to ensure operation.

Monitoring parameters

VASCO Solar – VAriable Speed COntroller is equipped with a backlit alphanumeric display and is designed to monitor key electrical parameters like input voltage, power, current and motor power factor.

It is also possible to connect a pressure or flow sensor to monitor performance levels.

In the diagnosis menu are recorded inverter and motor hours, operation statistics, and the last eight alarms occurred. The programming menus are password-protected to prevent unwanted tampering.

Monitoring parameters

VASCO Solar – VAriable Speed COntroller is equipped with a backlit alphanumeric display and is designed to monitor key electrical parameters like input voltage, power, current and motor power factor.

It is also possible to connect a pressure or flow sensor to monitor performance levels.

In the diagnosis menu are recorded inverter and motor hours, operation statistics, and the last eight alarms occurred. The programming menus are password-protected to prevent unwanted tampering.

Complete pump protection.

VASCO Solar – VAriable Speed COntroller is able to protect the pump against overload and dry running.

Dry running protection is performed by monitoring the motor’s power factor and therefore probes are not required.

It also protects itself against surges and overheating.

PV system sizing.

The pumping system must be designed taking into account the required daily flow rate, total head and the installation site.

In particular, the choice of the pump must be made considering the average daily solar irradiation.

Once the appropriate pump has been identified, it is necessary to know:

• Rated pump power (P2)
• Electrical motor power (P1). P1 can be derived by dividing P2 by motor efficiency.
• Rated motor current
• Rated motor voltage
  3 x 230 VAC or
  3 x 400 VAC

The model to be used is determined by considering voltage and rated motor current.

To ensure maximum performance, the solar system – consisting of one or more strings of solar panels connected in series – must provide:

Electrical motor power (P1). ùThe photovoltaic power (Wp) must be at least equal to the electric motor power (P1). Typically, taking into account the efficiency loss due to panel temperature, it is recommended to increase Wp by 15% with respect to P1.

Rated motor voltage. The rated voltage of each string of solar panels (Vmp) must be at least equal to the rated motor voltage multiplied by the factor 1.4.

The open-circuit voltage of each string (Voc) must be less than device maximum operating voltage.

PV system sizing.

The pumping system must be designed taking into account the required daily flow rate, total head and the installation site.

In particular, the choice of the pump must be made considering the average daily solar irradiation.

Once the appropriate pump has been identified, it is necessary to know:

• Rated pump power (P2)
• Electrical motor power (P1). P1 can be derived by dividing P2 by motor efficiency.
• Rated motor current
• Rated motor voltage
  3 x 230 VAC or
  3 x 400 VAC

The model to be used is determined by considering voltage and rated motor current.

To ensure maximum performance, the solar system – consisting of one or more strings of solar panels connected in series – must provide:

Electrical motor power (P1). ùThe photovoltaic power (Wp) must be at least equal to the electric motor power (P1). Typically, taking into account the efficiency loss due to panel temperature, it is recommended to increase Wp by 15% with respect to P1.

Rated motor voltage. The rated voltage of each string of solar panels (Vmp) must be at least equal to the rated motor voltage multiplied by the factor 1.4.

The open-circuit voltage of each string (Voc) must be less than device maximum operating voltage.