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Nastec MIDA 203 Installation And Use Manual

Mida series
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Installation and use manual
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Summary of Contents for Nastec MIDA 203

  • Page 1 Installation and use manual MIDA manMIDA_eng_10...

  • Page 2: Table Of Contents

    Index 1. MIDA Introduction ................................3 2. Safety Instructions ................................3 3. Technical Characteristics ..............................4 3.1 Performance .................................... 4 3.1 Weight and dimensions ................................4 3.2 Cable entries .................................... 4 4. MIDA installation ................................5 4.1 Mechanical installation ................................5 4.2 MIDA Installation for constant pressure control ........................

  • Page 3: Mida Introduction

    1. MIDA Introduction MIDA is a variable frequency drive (inverter) designed to control and protect pumping systems by varying the output frequency to the pump. MIDA can be applied to both new and existing pumping systems providing:  energy and cost savings ...

  • Page 4: Technical Characteristics

    V in Max V out I in Max I out Typical motor P2 Model Size [kW] MIDA 203 1 x 230 +/- 15% 3 x 230 0,55 MIDA 205 1 x 230 +/- 15% 3 x 230 MIDA 207 1 x 230 +/- 15% 3 x 230 ...

  • Page 5: Mida Installation

    4. MIDA installation 4.1 Mechanical installation MIDA on motor MIDA 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 base with motor terminal box (see drawing).
  • Page 6 MIDA on wall When installed on the wall, keep the protective label on MIDA base in order to grant the ingress protection. Follow below instructions how to fix MIDA base on the wall. WARNING: use the provided O-rings with screws in order to grant IP55 protection...

  • Page 7: Mida Installation For Constant Pressure Control

    4.2 MIDA Installation for constant pressure control MIDA controls the pump speed to maintain constant pressure at a set point independent of the water demand in the system. A basic schematic is shown below: 1: pump MIDA 2: check valve 3: pressure tank 4: valve 5: valve...

  • Page 8: Mida Installation For Differential Constant Pressure Applications

    4.3 MIDA installation for differential constant pressure applications MIDA can manage the pump speed in order to keep constant the pressure difference between the discharge and suction side of the pump in circulation systems. To do this, it is usually installed a differential pressure sensor. Alternatively, it is possible to use two identical pressure sensors: one in suction side and one in discharge side of the pump.

  • Page 9: Electric Wiring

    5. Electric wiring MIDA 203,205,207 Power supply  L(L1), N(L2), P.E. 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.
  • Page 10 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.
  • Page 11 1. M12 cable gland 2. Locknut 3. EMC clip 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.
  • Page 12 COMBO serial:  S1+, S1-, G It is recommended to respect the polarity linking more MIDAs 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: ...

  • Page 13: Protections

    5.1 Protections The protections required upstream each MIDAs depends on the type of installation, and local regulations. We recommend to use overload protection with fuse, circuit breaker type C and residual current device type B sensitive to both AC and DC current.

  • Page 14: Mida Use And Programming

    6. MIDA use and programming MIDA can be operated in a basic way through the included keyboard. Stand-by red led Red led ON: unit is powered with correct input voltage Blinking red led: undervoltage Motor running Green led ON: motor is running green led Green led OFF: motor is stopped When the units is on “constant value”...

  • Page 15: Monitoring And Programming

    In order to access to parameters monitoring and programming it is necessary to use a smartphone or tablet with Bluetooth 4.0 (BTLE) and Nastec NOW App installed. The App is available on Android, iOS and Windows Mobile and can be downloaded free of charge through the on-line stores.

  • Page 16: Programming

    6.1.2 Programming Parameters are organized in four main menus: CONTROL, MOTOR, IN/OUT, CONNECT. Parameters are password protected in 2 levels of access:  Installer level (CONTROL, IN/OUT). Password: 001  Advanced level (MOTOR, CONNECT). Password: 002 IN/OUT PARAMETERS Parameter Default Description Unit Unit [bar,%,ft,in,cm,m,K,F,C,gpm,l/min,m3/h,atm,psi]...
  • Page 17 Parameter Default Description Dig. input 1 manual reset Enabling or disabling digital input 1 manual reset. Disable Enable / Disable Dig. input 2 manual reset Enabling or disabling digital input 2 manual reset. Disable Enable / Disable Dig.In.2 delay Digital input IN2 delay. Digital input IN1 has 1 second fix delay.
  • Page 18 Parameter Default Description Compensation Value compensation at the maximum  frequency for each pump. Acting on the XXX.X [bar] green button you can reverse the sign. Set value 2  Set value to be kept constant. XXX.X [bar] Compensation 2 Value compensation at the maximum ...
  • Page 19 Parameter Default Description Operating freq. 2  Frequency value to feed the pump. XXX [Hz] Freq.min.control    Minimum frequency below which the pump tries to stop. XXX [Hz] Stop delay    Delay for which the pump tries to stop below freq.min.control.
  • Page 20 Parameter Default Description Kp and Ki parameters allow the dynamic   control of system by MIDA; set values (Ki=50, Kp=005) are usually enough to get a valid dynamic control. COMBO   Enabling or disabling COMBO operation as described in COMBO chapter. ON/OFF Address MIDA address:...
  • Page 21 MOTOR PARAMETERS Parameters Default Description Rated motor Volt. Motor rated voltage (as shown on motor nameplate). XXX [V] Voltage boost Voltage increase during the motor start up. Warning: An excessive value can seriously damage the motor. Contact the XX.X [%] motor manufacturer for further information.
  • Page 22 Freq. PI Control Max motor freq. Ramp down time Ramp up time Stop delay Freq.min.control Control ramp Min. motor. freq. Ramp f min mot. Ramp f min mot. Sec. Carrier frequency (switching frequency). It is possible to choose PWM in the range of 2.5 ,4, 6, 8, 10 kHz . Higher values give a more sinusoidal wave with fewer losses for the motor but higher losses for the inverter (increased inverter heating).

  • Page 23: Combo Operation

    CONNECTIVITY PARAMETERS Parameters Default Description MODBUS address MODBUS address from 1 to 247 MODBUS baudrate 9600 MODBUS baudrate from 1200 bps to 57600 bps XXXXX [bps] MODBUS data format RTU N81 MODBUS data format: RTU N81, RTU N82, RTU E81, ETU O81 XXXXX 6.2 COMBO operation COMBO serial connection...
  • Page 24 Master setup Activate COMBO function by setting ON COMBO ON/OFF Set master address as 00 Address Function to allow alternating between the MIDAs connected in parallel in order to Alternance allow equal use of each pump in the group; in this way Master will reorganize the starting priority of the pumps by checking the life of each of them.

  • Page 25: Protections And Alarms

    7. Protections and alarms ALARM MESSAGE LED NOTIFICATION ALARM DESCRIPTION POSSIBILE SOLUTIONS Check possible causes of UNDER VOLTAGE Red STAND-BY led blinking Supply voltage too low undervoltage. Red STAND-BY led and Check possible causes of OVER VOLTAGE Supply voltage too high yellow ALARM led blinking overvoltage.
  • Page 26  Decrease the ramp-up time The current drawn by the  Check the voltage drop load exceeds the capacity of IGBT TRIP ALARM Yellow ALARM led 5 blinks along the supply cable to MIDA or inverter power the motor. module (IGBT) is failed. ...
  • Page 27 R&TTE Directive 2014/53/EU RoHS Directive 2011/65/EU We, Nastec srl, via della Tecnica, 8, 36024, Mossano, Vicenza, Italy, declare that: MIDA is an electronic device to be connected to other electrical equipment with which it is to form individual units. It must, therefore, that the putting into service of this unit (with all its subsidiary equipments) to be performed by qualified personnel.
  • Page 28 NOTES Copyright NASTEC srl Nastec reserves the right to modify informations in this manual without any notice. Nastec srl, Via della Tecnica, 8, 36024, Mossano, Vicenza, Italy, Tel. +39 0444 886289, Fax +39 0444 776099, www.nastec.eu, info@nastec.eu...

This manual is also suitable for:

Mida 205Mida 207

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