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EG4_ccaa-180C0D
2024-02-05
- Based on testing firmware cCaa-xx5F66.
- Based on standard firmware cCaa-170B0C.
- 1. New feature— Gen Boost, which enables the PV and battery to work with the generator together to avoid issues such as generator overload protection when the generator power is insufficient to handle the load.
- 2. Improvement—Optimize the N-PE bond function logic of the parallel system to comply with regulations, only the master will close the N-PE relay.
- 3. Improvement—Enlarging the maximum charging current range of lithium battery BMS to avoid current data overflow issues
- 4. Improvement—Improving AC charge logic in 120/208V grid type.
- 5. Improvement—Optimize the control of three-phase parallel systems to optimize the unbalanced load issues.
- 6. Improvement—Optimize the logic of AC waking up the lithium battery after communication loss.
- 7. Improvement—Add custom settings for lead-acid battery capacity on monitoring and LCD. After selecting the capacity index of 31 in the Model, it can be manually entered the custom battery capacity.
- 8. Improvement—Change the logic of manually starting generator to charge: In the previous version, after manually starting the generator, the inverter would check whether the current battery SOC/VOLT was lower than the Start Generator charge SOC/VOLT before entering the Generator charge. Now, modify to manually start the generator, check if the current battery SOC/VOLT is lower than the Stop Generator charge SOC/VOLT, then enter the Generator charge.
- 9. Improvement—Optimizing the Battery ECO function: When the battery ECO function is enabled and the AC charge conditions are not met, the battery SOC/VOLT is lower than the Discharge on grid EOD or Discharge Cutoff SOC/VOLT,
- switch the inverter to Grid bypass mode.
- 10. Improvement—Modify the logic of the "Set to standby" setting. In previous versions, when setting "Set to standby" the inverter would be in standby mode and the grid bypass relay would be turned off to stop supplying power to the EPS output port. Now it is modified to inverter would be in standby mode as well, but if the grid input is normal, the grid bypass relay will close, and the grid bypass will supply power to the EPS output load.
- 11. Improvement—Modify LCD display logic: Change basic information page information from 1-second automatic polling display to manual switching display.
EG4_ccaa-170B0C
2023-12-03
- Optimization of CT sampling ratio coefficient.
- Optimization of charging over temperature protection and over current protection.
- Solve the problem of charge when grid 120V/208V mode.
- Fix the problem of phase locking deviation when the grid input is 120/208V and the range of phase locking for AC input.
- Max value setting of Off grid Discharge Cut-off Voltage changed to 56V.
- Voltage and SOC logic of Off grid Discharge Cut-off, On Grid EOD, Battery Warning will be more associated.
- Max value setting of AC Charge Start Battery Voltage and Generator Charge Start Battery Voltage changed to 57V.
- Optimize calculation method for the percentage of discharge power in lead-acid battery mode. e.g. It will be more accurate when PV and battery take load together.
EG4_ccaa-160B0B
2023-11-08
- Optimize NTC open circuit problem for MPPT board.
- The discharge cut-off voltage setting for lithium battery is not related to the load rate.
- Optimize the charge current limit.
EG4_ccaa-140A0A
2023-10-25
- Add safety regulations 2-General_ 60Hz.
- Fix the issue of abnormal power display.
- Improve Green Function.
- Add the function of synchronously turning off the battery after triggering RSD.
- Optimize the charging current of the generator.
- Fix the issue with battery wake-up function.
EG4_ccaa-140909
2023-10-06
- Optimize calibration parameters.
- Optimize LCD storage spaces.
- Optimize the settings in Safety Regulation 1-US_60Hz.
- Optimize the LCD settings in Safety Regulation 1-US_60Hz.
EG4_ccaa-140607
2023-08-18
- Optimize off grid control parameters.
- Optimize the issue of output overvoltage protection.
- Optimize firmware storage spaces.
- Improve parallel mode.
- Add PV ISO function.
- Add AFCI function.
- Add RSD function and perform synchronous shutdown in parallel.
- Add N-wire grounding control.
- Add PV ISO, AFCI, and RSD enabled settings to the LCD settings menu.
- Add half BUS balance control and half BUS overvoltage fast protection.
- Add three-phase parallel operation.
- Optimize hardware version recognition.
- Fix the problem of frequent switching of generator charge.
- Improve the situation of internal communication failures.
- Limit the phase-locked range of 60Hz to 55.5-65.5Hz.
- Optimize calibration parameters.
EG4_ccaa-130505
2023-06-13
- Add a new version of the inverter current sampling ratio program.
- Optimizing the parameters of the inverter current control loop under the 6kW model.
- Optimize calibration parameters.
- Optimize the settings in Safety Regulation 1-US_60Hz.
- Improve parallel mode.
EG4_ccaa-130303
2023-05-04
- Increase the maximum power limit of the MPPT board.
- Add the power range of the 6kW model.
- Add AC charging based on voltage or SOC options associated with time period settings.
- Add Hina battery protocol and related monitoring and BMS update functions.
- Add the function of querying historical fault warning information through external communication.
- Optimize off grid control, improve DCV input, and increase the BB current limit of off grid output.
- Optimize the situation of battery overvoltage.
- Add a new version of IP-SCR circuit for PWM drive.
- Add external CT sampling options.
- Optimize frequency adaptive logic.
- Improve the delay of relay disconnection.
- Optimize battery reverse connection judgment logic.
- Fix the issue of PV high voltage not being able to wake up the battery.
- Optimize the charging logic of parallel generators.
- Optimize and merge software.
Posted : October 10, 2024 5:35 pm
