Next generation of motor on-board inverter.

Ideal for water booster sets, HVAC systems with circulating pumps and control of submersible pumps. It ensures:

Energy saving due to variable speed control.
Soft start and soft stop.
Extended system life and reliability.
Installation on humid and dusty environments made possible by IP55 (NEMA 4) protection degree.
Simplified installation on motor or wall.
Easy and fast commissioning thanks to initial configuration wizard.
High thermal and mechanical performance thanks to aluminium case and independent ventilation.

Next generation of motor on-board inverter.

Ideal for water booster sets, HVAC systems with circulating pumps and control of submersible pumps. It ensures:

Energy saving due to variable speed control.
Soft start and soft stop.
Extended system life and reliability.
Installation on humid and dusty environments made possible by IP55 (NEMA 4) protection degree.
Simplified installation on motor or wall.
Easy and fast commissioning thanks to initial configuration wizard.
High thermal and mechanical performance thanks to aluminium case and independent ventilation.

Extended system life and reliability.

The average speed of a pump driven by MIDA is inevitably lower than a comparable fixed speed pump. This reduces component wear such as bearings, bushings, seals, etc. MIDA also starts and stops the pump gently, reducing the mechanical stress on the shaft and impellers and avoiding water hammer. Hardware and software protections provided by MIDA prevent any damage to the pump and the system. At lower speeds, the system will also generate less noise.

Energy saving due to variable speed control.

The power consumed by the pump is proportional to the cube of its speed. Unlike traditional systems where the pump speed is fixed and controlled by the mains frequency (@ 50 Hz, about 3000 rpm), MIDA is able to vary the pump speed according to water demand. In the presence of low demand, MIDA controls the pump at a reduced speed, which consumes less power. For example, if the pump turns at 40 Hz (about 2400 rpm) instead the nominal 50 Hz (about 3000 rpm), power consumption would be half.

Complete pump protection

Built-in protections against:

Overvoltage and undervoltage.
Overcurrent and no load.
Dry running.
Overtemperature.

Simplified installation on motor or wall.

Motor on-board installation

MIDA can be installed directly on motor terminal box, after verification of coupling size.

The on-board motor installation is possible with both horizontal and vertical axis pumps.

Wall fixing

MIDA is cooled by an its dedicated cooling fan and it can be mounted to the wall through the use of 4 scews.

Simplified installation on motor or wall.

Motor on-board installation

MIDA can be installed directly on motor terminal box, after verification of coupling size.

The on-board motor installation is possible with both horizontal and vertical axis pumps.

Wall fixing

MIDA is cooled by an its dedicated cooling fan and it can be mounted to the wall through the use of 4 scews.

Booster sets

Motor on-board installation

With MIDA inverters is possible to realise booster sets with one or more pumps (up to 8) to be controlled at constant pressure.

MIDA can be mounted directly to the motor fan cover with a proper kit; the extreme strength of the connection allows the MIDA installation even on horizontal pumps. Screen display can be easily rotated to optimise the parameters view.

Motor mounting application guarantees, as well as the compactness and the saving of additional control panels and wirings, a very good cooling of the inverter and low electromagnetic emissions due to the reduced length of motor cable. IP55 protection allows the installation in humid and dusty environments.

If MIDA cannot be installed on motor fan cover, it is possible to fix the MIDA to the wall with an optional kit composed by a cooling fan fed by the MIDA itself and a wall metal bracket.

IP55 protection does not require to include MIDA drive into any additional control box so MIDA can be installed very near to the pump.

COMBO mode control allows to switch the start of pumps based on real working time and, in case of failure, remaining pumps grant the operation to always guarantee the service.

Once the damaged unit is replaced, COMBO will preferably move the operation on the new pumps to equalize the running time.

2 to 8 MIDAs in COMBO mode

A second way of splitting (named COMBO) consists of using several pumps in parallel (up to 8) each one driven by a MIDA unit. In this way, the efficiency and the reliability of the pump group is maximized.

Each MIDA controls and protects its pump and the operation is shared among all the connected pumps to average pump wearing; in case of failure the remaining pumps will maintain the pumping operation.

HVAC systems with circulating pumps

MIDA performs the operation at constant differential pressure by using a differential pressure sensor or using 2 pressure sensors installed in the suction and delivery sides of the pump. Difference value is calculated by the MIDA itself from the two read values.

Submersible pumps

Submersible pumps of various powers can be powered by MIDA. It is suggested to set to 2.5 kHz the carrier frequency (PWM parameter) and sometimes it is necessary to install a filter between pump and inverter to:

reduce the spikes on the motor windings caused by voltage reflection (dv/dt filters)
avoid electromagnetic noise in the surrounding environment (sinusoidal filters).

It is recommended to keep separate the motor cable from other cables granting a certain distance. Nastec can provide filters and shielded cables for a proper pump installation.

Several control modes

Constant pressure

MIDA controls the pump speed to maintain constant pressure at a set point independent of the water demand in the system.

Constant differential pressure

MIDA performs the operation at constant differential pressure by using a differential pressure sensor or using 2 pressure sensors installed in the suction and delivery sides of the pump. Difference value is calculated by the MIDA itself from the two values read.

Constant pressure: 2 set-points

By selecting the constant pressure 2 values control mode, in irrigation systems, only one pump can serve two zones with different pressure sets. It is possible to switch the two values by acting on a digit input contact.

Constant temperature

The control method at constant temperature is used to maintain the temperature of the pumped fluid to vary the thermal load. This control system is used in air conditioning or refrigeration and cooling towers. In this latter case, for example, the temperature measured by a sensor in the return water is kept constant.

Constant flow

By selecting the constant flow control mode and using a flow transducer , it is possible to control the flow of the pumped liquid to vary the system condition. This control mode is used, for example, in a system for filtering the pumped fluid in which the obstruction of the filter would lead to a progressive reduction of the flow rate if it is not compensated by an increasing of the pump speed.

External frequency

In some application, it is chosen to change the frequency of the pump by using an external signal coming from a trimmer or a PLC. In this case, after selecting the External Frequency control mode, it is enough to connect an input signal 4-20 mA or 0-10V, proportional to the desired frequency, to the AN4 analogue contact.

Smart control of hydraulic parameters

Intelligent stop of pump at no flow condition

Below minimum control frequency, MIDA gradually reduces the pump speed while monitoring the pressure transducer signal. If this value is maintained close to the set pressure, MIDA will reduce the output frequency until stopping the pump definitely.

Dry running alarm via cosphi value

If the pump runs dry, its cosphi value drops below a settable cosphi value, and MIDA stops the pump after 3 seconds. MIDA will try to make 5 attempts every 10, 20, 40, 80 and 160 minutes, after which it will trigger an alarm and stop the pump if the condition persists.

Maximum and minimum alarm pressure

When the pressure rises above a certain settable pressure value, MIDA will stop the pump to prevent damage to the hydraulic components in the system. Similarly, if the pressure drops below a certain pressure an alarm is triggered and the pump is stopped.

Loss compensation proportional to the water flow

If the pressure sensor is placed near the pump, with the increase in flow the pressure value at the furthest outlet is lower than the set pressure. It is possible to vary the set pressure in proportion to the frequency to compensate pressure loss in the pipes.

Advanced motor controls

Min motor frequency

This parameter prevents motor operation below a certain frequency, thus avoiding damage to the thrust bearing of the submersible motors.

Min motor frequency ramp

Motor can accelerate from 0 to the minimum motor frequency following a very fast ramp and then go through a slower ramp.

Adjustable V/f curve control

MIDA allows to choose between two different methods of torque control (voltage) versus pumps speed (frequency):

constant torque (linear V/f)
quadratic variable torque (squared V/f)

For centrifugal pumps, energy savings can be obtained by selecting squared V/f control.

Periodic autorun

It is possible to program automatic periodic autorun after a certain time of pump inactivity.

Settable carrier frequency: 2.5, 4, 6, 8, 10 kHz

If MIDA controls a submersible pump with long cables, it is possible to decrease the carrier frequency value to ensure longer motor life.

Booster sets

Motor on-board installation

With MIDA inverters is possible to realise booster sets with one or more pumps (up to 8) to be controlled at constant pressure.

MIDA can be mounted directly to the motor fan cover with a proper kit; the extreme strength of the connection allows the MIDA installation even on horizontal pumps. Screen display can be easily rotated to optimise the parameters view.

Motor mounting application guarantees, as well as the compactness and the saving of additional control panels and wirings, a very good cooling of the inverter and low electromagnetic emissions due to the reduced length of motor cable. IP55 protection allows the installation in humid and dusty environments.

If MIDA cannot be installed on motor fan cover, it is possible to fix the MIDA to the wall with an optional kit composed by a cooling fan fed by the MIDA itself and a wall metal bracket.

IP55 protection does not require to include MIDA drive into any additional control box so MIDA can be installed very near to the pump.

COMBO mode control allows to switch the start of pumps based on real working time and, in case of failure, remaining pumps grant the operation to always guarantee the service.

Once the damaged unit is replaced, COMBO will preferably move the operation on the new pumps to equalize the running time.

2 to 8 MIDAs in COMBO mode

A second way of splitting (named COMBO) consists of using several pumps in parallel (up to 8) each one driven by a MIDA unit. In this way, the efficiency and the reliability of the pump group is maximized.

Each MIDA controls and protects its pump and the operation is shared among all the connected pumps to average pump wearing; in case of failure the remaining pumps will maintain the pumping operation.

HVAC systems with circulating pumps

MIDA performs the operation at constant differential pressure by using a differential pressure sensor or using 2 pressure sensors installed in the suction and delivery sides of the pump. Difference value is calculated by the MIDA itself from the two read values.

Submersible pumps

Submersible pumps of various powers can be powered by MIDA. It is suggested to set to 2.5 kHz the carrier frequency (PWM parameter) and sometimes it is necessary to install a filter between pump and inverter to:

reduce the spikes on the motor windings caused by voltage reflection (dv/dt filters)
avoid electromagnetic noise in the surrounding environment (sinusoidal filters).

It is recommended to keep separate the motor cable from other cables granting a certain distance. Nastec can provide filters and shielded cables for a proper pump installation.

Several control modes

Constant pressure

MIDA controls the pump speed to maintain constant pressure at a set point independent of the water demand in the system.

Constant differential pressure

MIDA performs the operation at constant differential pressure by using a differential pressure sensor or using 2 pressure sensors installed in the suction and delivery sides of the pump. Difference value is calculated by the MIDA itself from the two values read.

Constant pressure: 2 set-points

By selecting the constant pressure 2 values control mode, in irrigation systems, only one pump can serve two zones with different pressure sets. It is possible to switch the two values by acting on a digit input contact.

Constant temperature

The control method at constant temperature is used to maintain the temperature of the pumped fluid to vary the thermal load. This control system is used in air conditioning or refrigeration and cooling towers. In this latter case, for example, the temperature measured by a sensor in the return water is kept constant.

Constant flow

By selecting the constant flow control mode and using a flow transducer , it is possible to control the flow of the pumped liquid to vary the system condition. This control mode is used, for example, in a system for filtering the pumped fluid in which the obstruction of the filter would lead to a progressive reduction of the flow rate if it is not compensated by an increasing of the pump speed.

External frequency

In some application, it is chosen to change the frequency of the pump by using an external signal coming from a trimmer or a PLC. In this case, after selecting the External Frequency control mode, it is enough to connect an input signal 4-20 mA or 0-10V, proportional to the desired frequency, to the AN4 analogue contact.

Smart control of hydraulic parameters

Intelligent stop of pump at no flow condition

Below minimum control frequency, MIDA gradually reduces the pump speed while monitoring the pressure transducer signal. If this value is maintained close to the set pressure, MIDA will reduce the output frequency until stopping the pump definitely.

Dry running alarm via cosphi value

If the pump runs dry, its cosphi value drops below a settable cosphi value, and MIDA stops the pump after 3 seconds. MIDA will try to make 5 attempts every 10, 20, 40, 80 and 160 minutes, after which it will trigger an alarm and stop the pump if the condition persists.

Maximum and minimum alarm pressure

When the pressure rises above a certain settable pressure value, MIDA will stop the pump to prevent damage to the hydraulic components in the system. Similarly, if the pressure drops below a certain pressure an alarm is triggered and the pump is stopped.

Loss compensation proportional to the water flow

If the pressure sensor is placed near the pump, with the increase in flow the pressure value at the furthest outlet is lower than the set pressure. It is possible to vary the set pressure in proportion to the frequency to compensate pressure loss in the pipes.

Advanced motor controls

Min motor frequency

This parameter prevents motor operation below a certain frequency, thus avoiding damage to the thrust bearing of the submersible motors.

Min motor frequency ramp

Motor can accelerate from 0 to the minimum motor frequency following a very fast ramp and then go through a slower ramp.

Adjustable V/f curve control

MIDA allows to choose between two different methods of torque control (voltage) versus pumps speed (frequency):

constant torque (linear V/f)
quadratic variable torque (squared V/f)

For centrifugal pumps, energy savings can be obtained by selecting squared V/f control.

Periodic autorun

It is possible to program automatic periodic autorun after a certain time of pump inactivity.

Settable carrier frequency: 2.5, 4, 6, 8, 10 kHz

If MIDA controls a submersible pump with long cables, it is possible to decrease the carrier frequency value to ensure longer motor life.

EMC compatibility for residential environment on single phase models

Integrated PFC (P.F. 1) to meet EN61000-3-2
Integrated input filter for Category C1 (EN61800-3), Class B (EN55011)

EMC compatibility for residential environment on single phase models

Integrated PFC (P.F. 1) to meet EN61000-3-2
Integrated input filter for Category C1 (EN61800-3), Class B (EN55011)

Unmatched user experience.

Thanks to Nastec NOW App it’s possible to communicate with all Nastec devices Bluetooth® SMART in order to:

Monitor multiple operating parameters simultaneously on the wide, high definition, coloured screen of your smartphone or tablet.
Get statistics of energy consumption and check alarms history.
Make programs, save them in the archive, copy them to other devices and share them among multiple users.
Perform reports with the possibility to insert notes, images and email them or keep them into the digital archive.
Remotely control, via wi-fi or GSM, a Nastec device, using a smartphone nearby as a modem, through the free Nastec REMO service and connecting to remo.nastec.eu
Promote your work on the nastec.eu website by sending photos from your smartphone, thanks to the MY WORKS section

Download pdf catalogue

Download Nastec NOW – Android from Google Play

Download Nastec NOW – iOS

Products for grid

Accessories

Solar energy products

Accessories

Next generation of motor on-board inverter.

Next generation of motor on-board inverter.

Extended system life and reliability

Energy saving due to variable speed control

Complete pump protection

Simplified installation
on motor or wall.

Simplified installation
on motor or wall.

Booster
sets

HVAC systems
with circulating pumps

Submersible
pumps

Control
modes

Smart control of
hydraulic parameters

Advanced motor
controls

Booster
sets

HVAC systems
with circulating pumps

Submersible
pumps

Control
modes

Smart control of hydraulic parameters

Advanced motor
controls

EMC compatibility for residential environment on single phase models

EMC compatibility for residential environment on single phase models

Unmatched
user experience

Recommended accessories

Request information

Nastec Srl

About us

Products for grid

Solar energy products

Services

Smart control of hydraulic parameters

Smart control of hydraulic parameters

Products for grid

Accessories

Solar energy products

Accessories

Next generation of motor on-board inverter.

Next generation of motor on-board inverter.

Extended system life and reliability

Energy saving due to variable speed control

Complete pump protection

Simplified installation on motor or wall.

Simplified installation on motor or wall.

Booster sets

HVAC systems with circulating pumps

Submersible pumps

Control modes

Smart control of hydraulic parameters

Advanced motor controls

Booster sets

HVAC systems with circulating pumps

Submersible pumps

Control modes

Smart control of hydraulic parameters

Advanced motor controls

EMC compatibility for residential environment on single phase models

EMC compatibility for residential environment on single phase models

Unmatched user experience

Recommended accessories

Request information

Nastec Srl

About us

Products for grid

Solar energy products

Services

Next generation of motor on-board inverter.

Next generation of motor on-board inverter.

Extended system life and reliability.

Energy saving due to variable speed control.

Complete pump protection

Simplified installation on motor or wall.

Simplified installation on motor or wall.

Booster sets

HVAC systems with circulating pumps

Submersible pumps

Several control modes

Smart control of hydraulic parameters

Advanced motor controls

Adjustable V/f curve control

Periodic autorun

Settable carrier frequency: 2.5, 4, 6, 8, 10 kHz

Booster sets

HVAC systems with circulating pumps

Submersible pumps

Several control modes

Smart control of hydraulic parameters

Advanced motor controls

Adjustable V/f curve control

Periodic autorun

Settable carrier frequency: 2.5, 4, 6, 8, 10 kHz

EMC compatibility for residential environment on single phase models

EMC compatibility for residential environment on single phase models

Unmatched user experience.

Simplified installation
on motor or wall.

Simplified installation
on motor or wall.

Booster
sets

HVAC systems
with circulating pumps

Submersible
pumps

Control
modes

Smart control of
hydraulic parameters

Advanced motor
controls

Booster
sets

HVAC systems
with circulating pumps

Submersible
pumps

Control
modes

Advanced motor
controls

Unmatched
user experience