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        Home > Product center > Frequency inverter > Special frequency converter


        PI550-S/PI550A1-S series solar pump inverter

        PI550-S/PI550A1-S series solar inverter special for PV water pump adopts the high accuracy fast MPPT algorithms , tracking the PV array output by the maximum power point,driving the pump motor as much as possible in meet various pumping appllications.The s…
        • Product introduction
        • Technical data
        • Operating environment
        • Application scope
        • Functional characteristics
        • Download
        PI550-S/PI550A1-S series solar inverter special for PV water pump adopts the high accuracy fast MPPT algorithms , tracking the PV array output by the maximum power point,driving the pump motor as much as possible in meet various pumping appllications.The solar inverter special for PV water pump can support AC input besides support PV array DC input when the PV array can not drive the motor or does not have output,it can also accept the grid DC input or other AC motor to supply the power to meet various emergency needs.PI550-S/PI550A1-S series solar inverter special for PV water pump provides full protection,maximizing the life of motor and pump.
          

         Items

        Function

        Specifications

        Power

        Voltage and frequency levels

        Single-phase 220V±10%,50/60Hz±5% 

        Three-phase 220V±10%,50/60Hz±5%

        Three-phase 380V±10%,50/60Hz±5%

        Recommend pv input DC voltage range

        G1/G2DC 200440V;

        G3DC 350780V

        Control system

        Control system

        High performance vector control inverter based on DSP

        Control method

        V/F control, vector control W/O PG

        Automatic torque boost function

        Realize low frequency (1Hz) and large output torque control under the V/F control mode.

        Acceleration/deceleration control

        Straight or S-curve mode. Four times available and time range is 0.0 to 6500.0s.

        V/F curve mode

        Linear, square root/m-th power, custom V/F curve

        Over load capability

        G type:rated current 150% - 1 minute, rated current 180% - 2 seconds

        Maximum frequency

        Vector control:0 to 300Hz;

        V/F control:0 to 3200Hz

        Carrier Frequency

        0.5 to 16kHz; automatically adjust carrier frequency according to the load characteristics.

        Input frequency resolution

        Digital setting: 0.01Hz Analog setting: maximum frequency×0.1%

        Start torque

        G type: 0.5Hz/150% (vector control W/O PG)

        Speed range

        1:100 (vector control W/O PG)

        Steady-speed precision

        Vector control W/O PG: ≤ ± 0.5% (rated synchronous speed)

        Torque response

        ≤ 40ms (vector control W/O PG)

        Torque boost

        Automatic torque boost; manual torque boost(0.1% to 30.0%)

        DC braking

        DC braking frequency: 0.0Hz to max. frequency, braking time:

        0.0 to 100.0 seconds, braking current value: 0.0% to 100.0%

        Jogging control

        Jog Frequency Range: 0.00Hz to max. frequency;

        Jog Ac/deceleration time: 0.0s to 6500.0s

        Multi-speed operation

        Achieve up to 16-speed operation through the control terminal

        Built-in PID

        Easy to realize closed-loop control system for the process control.

        Automatic voltage regulation(AVR)

        Automatically maintain a constant output voltage when the voltage of electricity grid changes

        The specific function of solar pump inveter 

        the biggest Optical power tracking,Light weak auto sleep,Light intensity automatically wake up,High water level automatic stop,Low water level automatic run,under load protection.

        Peronalization function

        Self-inspection of peripherals after power-on

        After powering on, peripheral equipment will perform safety testing, such as ground, short circuit, etc.

        Common DC bus function

        Multiple inverters can use a common DC bus.

        Quick current limiting

        The current limiting algorithm is used to reduce the inverter overcurrent probability, and improve whole unit anti-interference capability.

        Timing control

        Timing control function: time setting range(0m to 6500m)

        Running

        Input signal

        Running method

        Keyboard/terminal/communication

        Frequency setting

        10 frequency settings available, including adjustable DC(0 to 10V), adjustable DC(0 to 20mA), panel potentiometer, etc.

        Start signal

        Rotate forward/reverse

        Multi-speed

        At most 16-speed can be set(run by using the multi-function terminals or program)

        Emergency stop

        Interrupt controller output

        Fault reset

        When the protection function is active, you can automatically or manually reset the fault condition.

        PID feedback signal

        Including DC(0 to 10V), DC(0 to 20mA)

        Output signal

        Running status

        Motor status display, stop, ac/deceleration, constant speed, program running status.

        Fault output

        Contact capacity :normally closed contact 3A/AC 250V,normally open contact 5A/AC 250V,1A/DC 30V.

        Analog output

        Two-way analog output, 16 signals can be selected such as frequency, current, voltage and other, output signal range (0 to 10V / 0 to 20mA).

        Output signal

        At most 3-way output, there are 40 signals each way

        Run function

        Limit frequency, jump frequency, frequency compensation, auto-tuning, PID control

        DC current braking

        Built-in PID regulates braking current to ensure sufficient braking torque under no overcurrent condition.

        Running command channel

        Three channels: operation panel, control terminals and serial communication port. They can be switched through a variety of ways.

        Frequency source

        Total 11 frequency sources: digital, analog voltage,multi-speed and serial port. They can be switched through a variety of ways.

        Input terminals

        6 digital input terminals, compatible with active PNP or NPN input mode, one of them can be for high-speed pulse input(0 to 100 kHz square wave); 3 analog input terminals AI1and AI2 of them can be for 0-10V or 0-20mA input,and AI3 can be for -10V to +10V input.

        Output terminals

        2 digital output terminals, one of them can be for high-speed pulse output(0 to 100kHz square wave); TWO relay output terminal; 2 analog output terminals respectively for optional range (0 to 20mA or 0 to 10V), they can be used to set frequency, output frequency, speed and other physical parameters.

        Protection function

        Inverter protection

        Overvoltage protection, undervoltage protection, overcurrent protection, overload protection, overheat protection, overcurrent stall protection, overvoltage stall protection, losting-phase protection (optional), communication error, PID feedback signal abnormalities, and short circuit to ground protection.

        IGBT temperature display

        Displays current temperature IGBT

        Inverter fan control

        Can be set

        Instantaneous power-down restart

        Less than 15 milliseconds: continuous operation.

        More than 15 milliseconds: automatic detection of motor speed, instantaneous power-down restart.

        Speed start tracking method

        The inverter automatically tracks motor speed after it starts

        Parameter protection function

        Protect inverter parameters by setting administrator Password and decoding

        Display

        LED/OLED display keyboard

        Running information

        Monitoring objects including: running frequency, set frequency, bus voltage, output voltage, output current, output power, output torque, input terminal status, output terminal status, analog AI1 value, analog AI2 value, motor Actual running speedPID set value percentage, PID feedback value percentage.

        Error message

        At most save three error message, and the time, type, voltage, current, frequency and work status can be queried when the failure is occurred.

        LED display

        Display parameters

        OLED display

        Optional, prompts operation content in Chinese/English text.

        Copy parameter

        Can upload and download function code information of frequency converter, rapid replication parameters.

        Key lock and function selection

        Lock part or all of keys, define the function scope of some keys to prevent misuse.

        Communication

        RS485

        The optional completely isolated RS485 communication module can communicate with the host computer.

        9KRSCB.V5 version and above built-in 485 communication module

        Environment

        Environment temperature

        -10 to 40 (temperature at 40 to 50 , please derating for use)

        Storage temperature

        -20 to 65

        Environment humidity

        Less than 90% R.H, no condensation.

        Vibration

        Below 5.9m/s2 (= 0.6g)

        Application sites

        Indoor where no sunlight or corrosive, explosive gas and water vapor, dust, flammable gas, oil mist, water vapor, drip or salt, etc.

        Altitude

        Below 1000m

        Pollution degree

        2

        Product standard

        Product adopts safety standards.

        IEC61800-5-1:2007

        Product adopts EMC standards.

        IEC61800-3:2005

        Cooling method

        Forced air cooling

        (1) Environmental temperature -10℃ to 50℃ Above 40℃,the capacity will decrease 3% by each 1℃.So it is not advisable to use inverter above 50℃

        (2) Prevent electromagnetic interference, and away from interference sources.

        (3) Prevent the ingress of droplets, vapor, dust, dirt, lint and metal fine powder.

        (4) Prevent the ingress of oil, salt and corrosive gases.

        (5) Avoid vibration. The maximum amplitude of less than 5.9m / s (0.6g).

        (6) Avoid high temperature and humidity or exposure to rain, humidity shall be less than 90% RH (non-condensing). Do not allow condensation. In the presence of corrosive gas in the space, maximum relative humidity is no more than 60%.

        (7) Altitude below 1000 meters

        (8) Never use in the dangerous environment of flammable, combustible, explosive gas, liquid or solid.


        It is mainly used in agriculture and forestry irrigation, desert management industry, grassland animal husbandry and municipal water supply.

         

        Built-in high precision PV array maximum power point tracking
        MPPT algorithms
        Dry running mode monitoring, treatment
        Tank water level control
        Accept DC/AC input
        LED displays the real time situation and the parameter of system
        Based on RS485 real time remote control system
        Fast installation design, no need extra maintenance
        Built-in full protection and diagnostic mechanism

        With AC-DC automatic witching function

        Auto switch between DC and AC can be realized through auto switcher for PI550-S and PI550A1-S solar inverter only

        Built in communication funciton RS485 

        External GPRS device optional for remote monitoring and parameter setting

        REGISTRATION
        《POWTRAN user service protocol》

        Pre-sales

        After-sales

        Consult

        Consult

        0769-22222279

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