Q: How do I configure parameters to switch from PV control or three-phase utility power to single-phase utility power for single-phase output?
A: First, set parameter P15.00 to 0 to disable the PV function, ensuring the SP100 is powered by mains frequency. Set P15.39 to 0 to change the product model to single-phase power supply with single-direction output (this function code can also be used to switch the product model to match different input/output configurations). After verifying the wiring is correct, power on and start the system.
The TF card stores control parameters, system operation data and black box data. It is located on the left side of the control unit and can be used to restore parameters for a new control unit.
The TF card can be replaced after the main control unit is powered off. To avoid damaging the TF card, it should be removed before the control unit protective cover is removed.
1. Overvoltage: Fault in the voltage detection circuit; too short acceleration and deceleration; too high input voltage; peripheral issues
2. Undervoltage: Open circuit at the input end; faulty rectifier bridge or unit drive board
3. Unit overheating: Fault in the temperature detection element; reversed rotation of the top cabinet fan; environmental problems
4. Unit fiber optic communication fault: Issues with the fiber optic board, fiber optic connector, or wiring
① Access control failure: The contact points of the access control switch are broken, or the S3 interface of the system IO board is faulty.
② Overheating of the phase-shifting transformer: The direction of the fan is incorrect, the temperature controller gives a false alarm, or there is too much dust in the environment.
③ Bypass cabinet action failure: The manual/automatic type setting is incorrect, or the address setting is wrong.
④ Buffer cabinet failure: The buffer contactor or the system IO board is faulty.
⑤ Frequency converter overload: The selected model is too small; the grid voltage is too low; the parameter setting is incorrect; the current detection circuit is faulty.
When the equipment is not powered on and no 24V power supply is used, only by burning the software on a computer will the burning fail. However, using the 24V power supply and the corresponding software tool version (C2Prog_v2.2.0) will enable successful burning.
The control board uses the GD100-PV series control board to burn the non-standard software of GD170-PV. The overcurrent multiplier is insufficient.
A: The GD100-PV control board has an overcurrent multiplier of 2.5 times. It needs to be replaced with the GD170-PV series control board, which has an overcurrent multiplier of 2.83 times. The non-standard software needs to be optimized based on the foundation of the Egyptian long-line application.n.
The baud rate specified in the manual is 115200, but in practice, it works after changing the baud rate to 230400, allowing normal display and successful burning.
1. First, check if the bus voltage is normal and if the input and output fuses are functioning correctly.
2. Check for other accompanying alarms. Refer to the service manual to check the rectifier IGBT, bus fuse, and inverter IGBT.
3. Carefully inspect the fan outlet for corrosion, including the rectifier board J11 and inverter board J18 interfaces, and the location of the bus fuse.
4. Check if the signal cables connecting to the control board are properly connected.
Solution:
1. Replace the rectifier board, bus board, and inverter board based on the inspection results and corrosion findings.
2. Replace the signal cables and control board.
(When replacing the control board, take precautions against static electricity and apply hot melt glue to the signal cable connections.)
1. First, check if the relay is functioning correctly.
① Check the relay terminals according to the service manual. Under power-off conditions, it should be in an open circuit state; otherwise, it may be stuck together.
② Power on the UPS. With the rectifier starting but the inverter not yet fully running, under normal circumstances, there should be inverter voltage but no output voltage or a very small value. Otherwise, a short circuit exists.
2. Check for other accompanying alarms. Check if the inverter IGBT and bypass SCR are functioning correctly.
3. Check if the signal cables between the output board and the control board are properly connected. Try unplugging and replugging them.
4. The voltage sampling or operational amplifier function on the control board may be faulty.
Solution:
1. It is recommended to replace the output board first.
2.If the alarm persists, it is recommended to replace the signal cables and the control board.
(When replacing the control board, take precautions against static electricity and apply hot melt glue to the signal cable connections.)
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