Nastec MIDA Solar 203 Guide

Installation and use manual
MIDA Solar
manMIDA_Solar_eng_30

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Index
1. MIDA Solar Introduction.................................................................................................................................................... 3
2. Safety Instructions............................................................................................................................................................. 4
3. Technical Characteristics ................................................................................................................................................... 5
3.1 Performance ............................................................................................................................................................................ 5
3.2 Weight and dimensions .......................................................................................................................................................... 5
3.3 Cable entries ............................................................................................................................................................................ 5
4. MIDA Solar installation...................................................................................................................................................... 6
4.1 Mechanical installation ............................................................................................................................................................ 6
5. Electric wiring.................................................................................................................................................................... 8
5.1 Protections............................................................................................................................................................................. 11
5.2 Electromagnetic compliance.................................................................................................................................................. 11
5.3 Installation with long motor cables ....................................................................................................................................... 11
6. MIDA Solar use and programming ....................................................................................................................................12
6.1 Monitoring and programming............................................................................................................................................... 13
6.1.1 Monitoring ................................................................................................................................................................. 13
6.1.2 Programming.............................................................................................................................................................. 14
6.1.3 FOC motor control ...................................................................................................................................................... 23
7. Protections and alarms.....................................................................................................................................................25

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1. MIDA Solar Introduction
MIDA Solar inverters come to power traditional pumping systems using photovoltaic energy.
In this way it’s possible to convert old systems in renewable energy installations or to use the same AC pumps in the creation
of independent, cost-saving and environmentally sustainable water systems.
MIDA Solar is able to convert DC voltage coming from photovoltaic panels into AC voltage for powering any pump.
MPPT (Maximum Power Point Tracking) maximizes, for various conditions of irradiation and temperature, the electrical
power drawn from the panels so the amount of pumped water.
Pump speed is constantly adapted to available solar irradiation thus maximizing the amount of pumped water and making
possible operation even in low irradiation conditions.
MIDA Solar also offers complete pump protection against over-voltage, over-current and dry running.
MIDA Solar can be used with any type of pump thus offering maximum flexibility in several application areas. In the use with
submersible pumps, MIDA Solar allows to fill tanks for watering livestock or simply irrigate lawns or crops.
In the use with surface pumps, MIDA Solar can serve an irrigation fishing from a nearby water reserve or feed with no energy
cost a pool pump.
The MP (MultiPower) versions are able to be powered also by alternating voltage (grid or generator).

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2. Safety Instructions
The manufacturer strongly suggests carefully reading this operation manual before using and installing its products
Any operation (installation, maintenance and repair) must be carried out by trained, skilled, and qualified personnel.
Failure to observe and follow the instructions in this manual may result in dangerous and potentially lethal electric shock.
Pay attention to all standard safety and accident prevention regulations
The device must be connected to power supply via a switch to ensure the
complete disconnection from the network before any operation on the MIDA
Solar itself (including visual inspection) and/or on the connected load.
Disconnect MIDA Solar from the power supply before commencing any work.
Do not remove, for any reason, the cover and the cable plate without having first
disconnected the device from the main power supply and having waited at least
5 minutes.
MIDA Solar and pumping system must be grounded properly before operation.
For the entire period MIDA Solar is powered, high voltage is present on the
output terminals of the inverter whether or not the pump is running.
Tightening all the screws on the cover with washers is recommended before
powering the device. Otherwise, there may be a failure to connect the cover to
ground, creating the risk of electric shock or even death.
In the MultiPower (MP) models:
• Protections must be used on both the AC and DC side.
• Switching between AC and DC power supply must be done by an AC / DC switch
in accordance with local regulations.
• Connect only one power source (AC or DC) at a time.
Avoid any shock or significant impact during transport.
Check the MIDA Solar immediately upon delivery and check for damage and/or missing parts. If either occurs, immediately
notify the supplier.
Damages due to transport, incorrect installation, or improper use of the device will null and void the warranty.
Tampering or disassembly of any component will automatically void the warranty.
The manufacturer cannot be held responsible for any damages to people and/or property due to improper use of its
products.
Devices marked with this symbol cannot be disposed of in household waste but
must be disposed of at appropriate waste drop-off centres. It is recommended
to contact the Waste Electrical and Electronic Equipment drop-off centres
(WEEE) in the area. If not disposed of properly, the product can have potential
harmful effects on the environment and on human health due to certain
substances present within. Illegal or incorrect disposal of the product is subject
to serious administrative and/or criminal penalties.

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3. Technical Characteristics
3.1 Performance
Model
V in DC
[VDC]
V in AC *
[VAC]
Max I in
[A]
Max I out
[A]
Max V out
[VAC]
Typical motor P2 **
Size
[VAC]
[kW]
MIDA Solar 203
90 - 400
90 - 265
11
3,5
250
1x230
3x230
0,37
0,55
1
MIDA Solar 205
90 - 400
90 - 265
11
5
250
1x230
3x230
0,55
1,1
1
MIDA Solar 207
90 - 400
90 - 265
11
7,5
250
1x230
3x230
0,75
1,5
1
* AC power available only for MIDA Solar MP models.
** Typical motor power. It is recommended to refer to rated motor current when selecting the MIDA Solar model.
P.F. line side (when powered with AC): 1
Power frequency: 50 - 60 Hz (+/- 2%)
Stocking temperature: -30 to 70 °C (-22 to 158 °F)
Min. ambient temperature: -10 °C (-14 °F)
Max. ambient temperature: 50°C (122 °F)
Max. altitude at rated current: 1000 m
Max relative humidity: 95% without condensation
Grade of protection: IP66 (NEMA 4X) or motor IP when connected to motor terminal box *
Connectivity: Bluetooth SMART for monitoring and programming + Modbus RTU.
* Protect the device from direct exposure to sunlight and atmospheric agents
3.2 Weight and dimensions
Model
Weight *
Size
[Kg]
MIDA Solar 203
2,5
1
MIDA Solar 205
2,5
1
MIDA Solar 207
2,5
1
* Weight without packing.
3.3 Cable entries
When MIDA Solar is coupled on motor terminal box, install the cap instead of motor cable gland.
When MIDA Solar is fixed on the wall, install the motor M20 cable gland.
Model
M20 cable gland
M12 cable gland
EMC clips
MIDA Solar 203
2
3
3
MIDA Solar 205
2
3
3
MIDA Solar 207
2
3
3
SIZE 1

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4. MIDA Solar installation
4.1 Mechanical installation
MIDA Solar on motor
MIDA Solar can be installed directly on motor terminal box in
horizontal or vertical position.
Check with motor manufacturer if it can be operated by
inverter and verify the compatibility of MIDA Solar base with
motor terminal box (see drawing).
The rubber gasket on MIDA base grants the sealing between
MIDA Solar and motor case.
Pierce the rubber gasket only in correspondence of the 4
threaded holes on motor case.
If possible use the same screws and washers which fixed the
terminal box on motor case.
See below instruction how to mount MIDA Solar on motor.
WARNING: after installation check ground earth continuity
between motor case and MIDA Solar.
1
2
3
4

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MIDA Solar on wall
When installed on the wall, keep the protective label on MIDA Solar base in order to grant the ingress protection.
Follow below instructions how to fix MIDA Solar base on the wall.
WARNING: use the provided O-rings with screws in order to grant IP protection

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5. Electric wiring
MIDA Solar 203, 205, 207
Power supply
AC input (for MP models): L(L1), N(L2), P.E.
DC input: L(L1), N(L2), P.E.
With DC input it is not necessary to respect the polarity.
WARNING: In MP models, connect only one power
source (AC or DC) at a time.
It is recommended to use pre-insulated female faston terminals
6,3x0,8 mm.
In order to respect limits of EN61800-3 Category C1 for irradiated
disturbs, it is necessary to add a ferrite on input phases L and N. The
ferrite and cabling instructions are available on request.
Motor output
U, V, W, P.E.
It is recommended to use pre-insulated female
faston terminals 6,3x0,8 mm.
In case the device is mounted on motor terminal
box, it is suggested to use PVC wires 200 mm
long with cross section 1.5 mm2. In case the
device is mounted on the wall, it is
recommended using schielded cables of proper
cross section depending on cable length and
motor power. The screen has to be connected to
both side.
Recommended line cables stripping (without ferrite).
Recommended motor cables stripping.

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Analog inputs (sensors)
AN1: 4-20 mA, sensor 1
AN2: 4-20 mA, sensor 2
AN3: 0-10 V, external set
AN4: 0-10 V, trimmer for frequency regulation or external set 2
+10
+15
It is recommended to use pre-insulated ferrules.
Use shielded signal cables by placing the screen at one end using the provided EMC clips.
Follow the below figures for correct cable stripping and EMC clip assembling.
1. M12 cable gland
2. Locknut
3. EMC clip

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Digital inputs
•IN1 : motor start / stop
•IN2 : motor start / stop or set value 1 - 2 switching*
* only when “control mode: constant value 2 values”is selected.
It is recommended to use only volt free contacts.
Digital inputs can be configured as Normally Open or Normally Closed by software. Read programming chapter.
It is recommended to use pre-insulated ferrules.
Use shielded signal cables by placing the screen at one end using the provided EMC clips.
Digital outputs
NO1, COM1 : motor status, closed contact with motor running.
NC1, COM1: motor status, closed contact with motor stopped.
NO2, COM2: alarm status, closed contact without alarm.
NC2, COM2: alarm status, closed contact with alarm or no power supply.
Relays are volt free contacts. Max. voltage to the contacts is 250 V with max current 5 A.
It is recommended to use pre-insulated ferrules.
Use shielded signal cables by placing the screen at one end using the provided EMC clips.
COMBO serial:
S1+, S1-, G
It is recommended to respect the polarity linking more MIDA Solars in series (up to 8 units)
It is recommended to use pre-insulated ferrules.
Use shielded signal cables by placing the screen at one end using the provided EMC clips.
MODBUS RTU serial:
S2+, S2-, G
It is recommended to respect the polarity.
It is recommended to use pre-insulated ferrules.
Use shielded signal cables by placing the screen at one end using the provided EMC clips.