A wide range of high quality controllers for various power applications

SmartGen HES7120-PV Hybrid Energy Controller Suitable for solar energy control system with inverter

* All prices on this website are retail in USD on EXW incoterms


Technical Parameters:
Display LCD(132x64)
Operation Panel Silicon Rubber
Language Chinese & English & Others
Digital Input 7
Relay Output 8
Analogue Input 5
AC System 1P2W/2P3W/3P3W/3P4W
Alternator Frequency 50/60Hz
kW/Amp Detecting & Display ●
Monitor Interface Ethernet、USB
Programmable Interface Ethernet、USB
RTC & Event Log ●
Ethernet ●
DC Supply DC(8-35)V
Case Dimensions(mm) 209*167*45
Panel Cutout(mm) 186*141
Operating Temp. (-25~+70)℃

Product Overview:
HES7120-PV Hybrid Energy Controller can be used for solar energy control system with inverter. It can control the closing and opening of circuit breaker and the starting and stopping of the inverter, as well as the output power. According to the system application, it can be set to a variety of modes, including fixed power, busbar control power and inverter control power, etc., which can display all data and status of solar PV power generation. The controller integrates digitization, intelligentialize and networked technology, and adopts LCD, which can display Chinese, English and other languages, with simple and reliable operation.

HES7120-PV Hybrid Energy Controller adopts 32-bit microprocessor technology, realizing the functions of precise measurement, fixed value adjustment, timing and threshold setting of various parameters. Most parameters can be adjusted from the front panel of the controller, and all parameters can be adjusted by PC via USB or network interface. Its compact structure, simple connection and high reliability can be widely used in hybrid energy control system.


132x64 LCD with backlit, and selectable language interface (Chinese, English, and other languages) that can be chosen on site, which is convenient for debugging personnel commissioning.

With network communication interface, by which “4 remote functions” (remote control, remote measuring, remote communication and remote regulation) can be realized through MODBUS protocol.

Suitable for 3-phase 4-wire, 3-phase 3-wire, single phase 2-wire, and 2-phase 3-wire power systems with voltage 120/240V and frequency 50/60Hz.

Sampling and displaying 3-phase voltage, 3-phase current, frequency and power parameter of busbar/PV power generator.


Line voltage     Uab, Ubc, Uca

Phase voltage   Ua, Ub, Uc

Frequency      Hz

Phase sequence

Busbar Power

Current                      Ia, Ib, Ic

Divided phase and total active power   P

Reactive power                  Q

Apparent power                  S

Power factor                   PF


Line voltage     Uab, Ubc, Uca

Phase voltage   Ua, Ub, Uc

Frequency      Hz

Phase sequence

PV Power

Current                        Ia, Ib, Ic

Active power              P

Reactive power                    Q

Apparent power                    S

Power factor                     PF

PV Accumulated Total Generating Power    






The busbar has the functions of over and under voltage, over and under frequency, loss of phase, reverse phase sequence, over power, reverse power and voltage imbalance. PV has the functions of over and under voltage, over and under frequency, loss of phase, reverse phase sequence and voltage imbalance.

Voltage, current and power display of up to 4 solar panel channels can be set.

Sampling up to 3 solar panel temperatures and 3 solar irradiance to calculate the maximum capacity of PV.

A variety of temperature, pressure, liquid level, power transmitter, light radiation sensor curves can be used directly, and sensor curves can be customized, among which programmable 2 and programmable 4 can be connected to resistance, voltage or current type sensors.

Busbar power can be achieved by current transformer, power transmitter and communication.

With variety of protocols RS485 interface and can communicate with various inverters with RS485 interface.

With automatic closing and start function, automatic soft loading and soft unloading function.

With minimum load power setting of the busbar to prevent reverse power transmission to the busbar.

With up to 6-way busbar power, and calculates the total load power of busbar in real time according to the state of input port.

Control and protection functions: realize automatic start/stop of PV power generation inverter, closing and opening of breaker switch, perfect fault display protection and other functions.

Three active power control modes (fixed power, busbar control power, inverter control).

Four reactive power control modes (fixed power, busbar control power, power factor, inverter control).

Parameter setting function: allows the user to change and set its parameters, which will not be lost when the system is powered off. Most parameters can be adjusted from the front panel of the controller, and all parameters can be adjusted by PC through USB or network interface.

The power supply has a wide range of DC (8-35) V, which can adapt to different power supply voltage environments.

With event log and real-time clock.

Data recording function of busbar voltage, busbar frequency, busbar current, busbar power, PV generation voltage, PV generation frequency, PV current, PV power, sensor, etc. one minute before stop fault (can be set), with a maximum of 5 records; maximum records are 5.

With accumulation, user A, user B accumulation (running time, start times, power).

A rubber sealing ring is designed between the shell and the control panel, and the waterproof performance can reach IP65.

The controller is fixed with metal clips.

Modular structure design, pluggable terminal block, embedded installation mode, compact structure, convenient installation.

Why SmartGen?

  • More than 200,000 units yearly
  •  19 years of successful business
  • More than 50 offices worldwide
  • Almost 200 technology patents
  • ISO, GM and CCSR certificates
  • High quality and low prices
  •  Wide variety of generator parts


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