AGF-M Perforation type PV confluence acquisition device is specially designed for smart PV combiner box. It is used for monitoring the running state of solar panels in solar cell arrays, measuring the currents of solar cell, detecting the state of surge protection devices and DC breaker. The device is equipped with RS485(Modbus) communication port for transmitting all the datas to master device.
Power supply module size
confluence acquisition module installation dimension
|Rated current||DC 0~20A|
|Switching input||3-channel switching input(optical coupler or dry contact)|
|General technical parameters|
Working temperature: -35~+65℃， humidity95%,no condensation, no corrosion gas place
Display module work temperature:-20~+70℃
Temperature measurement function
|To measure the inner temperature of box （-20℃～100℃）|
|Industrial frequency withstand voltage|
power/communication/switching input/cell voltage input--AC 2kV/1min (When the auxiliary power supply is DC1500V, the withstand voltage between the power supply, photocell input and other circuit is AC 2.7kV) Current input/power、cell voltage 、communication、switching state—AC3.5kV/1min
|Power supply||AC85V～265V or DC300V～880V（1kV no damage）or DC24V(±10%)|
|EMC||Electrostatic discharge immunity test 3rd grade, air discharge 8kV, contact discharge 6kV.|
Electrical fast transient immunity test grade 4, common mode 4kV, difference mode 2kV
|Surge(shock) immunity test grade 4, common mode 4kV, difference mode 2kV|
|Power frequency magnetic field immunity test grade 4|
Multi-circuits Measurement up to 24 DC Circuits
● Input Channel: up to 24 Circuits
● LED Indicator for Re-flux, Disconnection, Over-current
● Rated Current: 20A
● Accuracy: 0.5 Class
● Voltage Measuring Range: up to 1500V (Busbar)
3-Channel DI Switch Status Monitoring
● DI Status of Lightning Protector and DC CB
● Octocoupler or dry Contact
Temperature Measuring & Over-temperature Alarm Function
● Measuring the inner Temperature of DC PV Junction Box
● Thermistor: NTC
● Range of Measuring: -20℃~+100℃
Keypads HMI for Programming
● Communication(address, baud rate and etc.)
● Over-temp Alarm Threshold
● English Interface
● Data Display
● Perforated Hole for Cable to pass through
● DIN Rail Installation
● Module Connected by Data Line
▋ Wiring Instruction
Wiring of Terminals
▋ Installation Instruction
Cable Wiring through Perforation
Module Connected by Data Line
▋ Practical Application
Solar PV Power Distribution Monitoring Solution
Practical Application of AGF-MxxT in PV Combiner Box
APV Smart Solar PV Combiner Box installed under PV Array
Connections of modules
Figure 6(Installation method without extension module)
Figure 7(Correct installation method with extension module)
Figure 8 (Wrong installation method with extension module)
Data cable connection way
The connection between each module is through the external data line. Please confirm the sequence of the two external data line ports before connecting each module. Each confluence
acquisition module has two outside connection ports(Figure 4): Port I and Port II, in which Port I is used to connect upstream module and Port II is used to connect follow-up modules. Please pay attention to it that the propulsion part of the data line connector must be fixed with the groove on the port.
The connection sequence order of PV confluence acquisition modules must follow: confluence acquisition module 1’s port Ⅱ-->confluence acquisition module 2’s port , Ⅰ confluence acquisition module 2’s port Ⅱ-->confluence acquisition module 3’s port . Ⅰ
When connecting the confluence acquisition modules ,multiple confluence modules should be in sequence order, it is not allowed to insert any other function module between two sequenced confluence modules. Wrong connection will lead to abnormal operation of the device.
LCD display module can be connected with Port II of confluence acquisition module, The LCD display module is not necessary to be connected in at ordinary time except when testing and checking.
The address allocation of PV confluence acquisition module is automatically distributed by the power module(main module), The first confluence acquisition module connected to the power module will be distributed automatically with 1st to 8th channels, and the next confluence acquisition module connected to port II will be distributed automatically with 9th to 16th channels, the final confluence acquisition module is distributed automatically with 17th to 24th channel.
Note: The arrow shows current direction. Wrong connection will lead to abnormal operation of the device.
Definition of input port
After the address of confluence acquisition module is distributed by the main module，the input channel address of first module is from 1st to 8th channel，the input channel address of second confluence acquisition module is from 9th to 16th channel，the input channel address of final confluence acquisition module is from 17th to 24th channel. The input channel definition of 1st to 8th channel of a single module is shown as Figure 3.
Note: Power supply circuit and voltage measuring circuit must be installed with fuse with 3A rated current and rated voltage that is the highest working voltage in these circuits to ensure safety.