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Summary of Contents for Weq CFW700
- Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings SOLAR PUMP DRIVE CFW700 Application Manual Language: English Document: 10006763201/ 04...
- Page 2 Application Manual Solar Pump Drive Series: CFW700 Language: English Document Number: 10006763201 / 04 Publication Date: 12/2022...
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Page 3: Table Of Contents
1.2 SAFETY WARNINGS IN THIS PRODUCT ..................8 1.3 PRELIMINARY RECOMMENDATIONS ..................... 8 2 PHOTOVOLTAIC WATER PUMPING SYSTEM ........10 2.1 OVERVIEW OF THE CFW700 IN PHOTOVOLTAIC SYSTEMS ............10 2.2 GENERAL CHARACTERISTICS OF THE SOLAR PUMP ..............10 3 INSTALLATION ..................12 3.1 SIZING OF PHOTOVOLTAICS SOLAR MODULES ................. -
Page 4: About The Manual
ABOUT THE MANUAL This manual provides the necessary information for the configuration of Solar Pump Drive application developed with the CFW700 inverter SoftPLC function. This application manual must be used together with the CFW700 ABBREVIATIONS AND DEFINITIONS Programmable Logic Controller... -
Page 5: Quick Parameter Reference
Quick Parameter Reference, Faults and Alarms QUICK PARAMETER REFERENCE Application Default User Parameter Description Adjustable Range Prop. Groups Page 60 Hz (50 Hz) Setting P0100 Acceleration Time 0.1 to 999.0 s 20.0 s BASIC P0101 Deceleration Time 0.1 to 999.0 s 20.0 s BASIC P0133... - Page 6 Quick Parameter Reference, Faults and Alarms Application Default User Parameter Description Adjustable Range Prop. Groups Page 60 Hz (50 Hz) Setting P1001 Command for SoftPLC 0 to 2 1 = Run Program SPLC Solar Pump Drive Application P1010 0.00 to 10.00 SPLC Version P1011...
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Page 7: Faults And Alarms
Quick Parameter Reference, Faults and Alarms FAULTS AND ALARMS Fault / Alarm Description Possible Causes F021: Undervoltage fault on the intermediate circuit. The input voltage is too low and the DC link Undervoltage on the DC Link voltage dropped below the minimum permitted value (monitor the P0004 parameter value): Ud <... -
Page 8: Safety Instructions
Safety Instructions 1 SAFETY INSTRUCTIONS This manual contains the information necessary for the correct use of the frequency inverter CFW700 applied to photovoltaic systems for water pumping. It was developed to be operated by people with proper technical training or qualification to handle this kind of equipment. - Page 9 NOTE! For the purposes of this manual, qualified persons are those trained and are therefore suitable for: 1. Install, ground, energize and operate the CFW700 in accordance with these manual and legal safety procedures. 2. Wear protective equipment in accordance with established local standards.
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Page 10: Photovoltaic Water Pumping System
2.2 GENERAL CHARACTERISTICS OF THE SOLAR PUMP The main characteristic of the Solar Pump Drive developed for the CFW700 inverter SoftPLC function is the control of one pump using for this a frequency inverter using the power supply by a photovoltaic system, thus allowing control of the speed of the pump. - Page 11 Photovoltaic Water Pumping System ■ Enable or not of the sleep mode with the PID controller enabled; ■ Wake up/Start level mode to activate the pump; ■ Minimum output pressure protection; ■ Maximum output pressure protection; ■ Dry pump protection through evaluation of motor torque and pump speed; ■...
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Page 12: Installation
The frequency inverters operate with undervoltage and overvoltage protection, so that if the voltage reaches these limit values, the inverter will interrupt its operation. Table 3.1 shows the inverter operating voltage information, as well as the overvoltage and undervoltage limits. Table 3.1 Voltage levels of the CFW700 400-415 440-460... - Page 13 Installation To facilitate the understanding of sizing, we use the following system as an example: Figure 3.1 Example of a photovoltaic pumping system For this example, based on desired flow a motor pump of 3 CV was selected as a reference, the sizing of the system's number of modules follows the equations: MOTORPUMP SIZING CALCULATION OF DAILY HYDRAULIC ENERGY...
- Page 14 = 376.7 Vdc). ������ NOTE! The dimensioning values are according to the table 3.1 (within the limits of CFW700). By associating eight solar modules in series, we are inserting steps of 2760 W . To meet the application needs 5.24kW , another set of eight modules will be associated in parallel, totaling 5.52kW...
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Page 15: Connections
The type of connection to be used will be determined by the voltage of the equipment, below are presented the typical connections for each CFW700 Frame, for more details about the connections of the solar panels consult 3.2.1 T4 Model For CFW700 frequency inverters from 380 to 480 V, model T4, the following connection is recommended: Figure 3.3 Connection diagram of the photovoltaic water pumping system for CFW700 T4... -
Page 16: T4 Model With Hybrid Power
Installation 3.2.2 T4 Model with Hybrid Power For CFW700 frequency inverters from 380 to 480 V, models T4, and that require hybrid power (photovoltaic panels + generator set) the following connection is recommended: Figure 3.4 Connection diagram of the photovoltaic water pumping system for CFW700 T4 with Hybrid Power NOTE! Take care to don't reverse the positive and negative voltage connections from the solar modules. -
Page 17: Control Method By Maximum Power Point Tracking
Control Method by Maximum Power Point Tracking 4 CONTROL METHOD BY MAXIMUM POWER POINT TRACKING The strategy of control method of variable reference is constantly tracking the maximum power point of the system (MPPT). The maximum power point of a solar module changes according to the solar radiance incident on the solar cell, as well as the temperature, wind velocity, inclination of the solar photovoltaic module, passing of clouds, thus generating the need of the constant search for maximum power of the system. -
Page 18: Parameters Description
Parameters Description 5 PARAMETERS DESCRIPTION The CFW700 inverter parameters (P0000 to P0999) and the SoftPLC function parameters (P1000 to P1059) for the Solar Pump Drive application will be presented next. NOTE! The Solar Pump Drive application only works on CFW700 inverter with firmware version over V2.30 So, upgrading the CFW700 inverter firmware to the working of this application is required. -
Page 19: Voltage Pid Controller
Parameters Description 5.1.2 Voltage PID Controller This group of parameters allows the user to configure the PID controller gains for the DC voltage control supplied by the photovoltaic modules. The PID controller always will attempt to search the work point defined by Tracking Setpoint and for this will act on the output frequency of the motor. -
Page 20: System Start Configuration
Parameters Description P1038 – Cloud/Load Controller Activation Level Adjustable 0.0 to 100.0 Application Default Setting: 1.0 % Range: Properties: Access groups via HMI: SPLC Description: This parameter defines the threshold percentage error value between the voltage SP and the DC Link voltage for activating the Cloud/Load Controller. -
Page 21: Solar Detector
Parameters Description Figure 5.1 Example: Auto Adjustment for Time Between Starts 5.1.5 Solar Detector The Solar irradiation detection consists of a photovoltaic module with a small solar panel properly dimensioned (Pmax=5W, Vmp=16.8V, Imp=0.3A, Voc=21V, Isc=0.39A) to be connected to the analog input 2 (AI2) of the CFW11 using a signal conditioning device (Solar Detector), the objective is to inform the instantaneous solar irradiation. - Page 22 Parameters Description P0236 AI2 Signal Function Adjustable 0 to 12 -> 3 = SoftPLC (No Function) Application Default Setting: Range: -> 6 = Function 2 Application (Solar Detection) -> 7 = Function 3 Application (Pressure SP) Properties: Access groups via HMI: Description: This parameter defines the function of the analogic Input AI2.
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Page 23: Pressure Controller
Parameters Description the external power supply requires the presence of minimum solar radiation that allows the energization of the equipment. With the input DIx configured to 27 when the input is TRUE it means that the external source is supplying the P0264 = 27 P0265 = 27 input is FALSE it means that the external source is not connected, and the system is been supplied by the Solar... -
Page 24: Pressure Pid Controller
Parameters Description Table 5.2 Pressure Control Mode Options P1030 Description The system tries to control the motor speed accordingly to the Manual Speed Setpoint (P1051 or AI2). With limited radiation, the system controls the DC bus voltage, causing the pump to run at maximum speed possible to reach the Manual Speed Setpoint. -
Page 25: Sleep Mode
P1035 in order for sleep mode to be activated and the pump to be stopped. NOTE! The alarm message "A750: Sleep Mode Active" will be generated on the HMI of the CFW700 inverter to alert that the Solar Pump Drive is in sleep mode. -
Page 26: Dry Pump
Parameters Description 5.3.1 Dry Pump This group of parameters allows the user to configure dry pump detection, to protect the inverter driven pump. P1040 Time Delay for Dry Pump Fault (F765) Adjustable 0 to 65000 s Application Default Setting: Range: Properties: Access groups via HMI: SPLC... -
Page 27: Minimum Output Pressure
Parameters Description 5.3.2 Minimum Output Pressure This parameter group allows the user to configure the minimum output pressure detection for pump protection activated by the CFW700 frequency inverter. P1044 Minimum Output Pressure Adjustable 0.0 to 300.0 Application Default Setting: 0.0... -
Page 28: Control Setpoint
Parameters Description NOTE! The system will stop if a fault message is generated. The value of this parameter at "0" disables the fault. 5.4 CONTROL SETPOINT This group of parameters allows the user to adjust the speed or pressure setpoint required for the system to function. -
Page 29: Hmi Monitoring
Parameters Description Description: This parameter allows to reset the parameters P1014 (Running Time of the CFW700) and P1015 (Total Energy kWh counter). These parameters can be useful for counting the number of monthly or weekly hours that the system is operating and the kWh generated. - Page 30 SPLC Description: This parameter displays the kWh value produced by the CFW700 and consumed by the pump. Until it reaches the value of 1000 kWh, the data will be presented with three, two, or one decimal point automatically. From 1000 kWh, the parameter format will be without decimal point, XXXX kWh.
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Page 31: Power Up And Start Up
4. Energize input; 5. Enter the general parameters in the CFW700 (Erro! Fonte de referência não encontrada., pag. 5), r eport according to the technical characteristics of the water pump and the inverter; 6. Switch to remote mode, and restart the CFW700;...
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