The internal circuit board is damaged; The Hall element of the motor is damaged; 12、 The indoor unit has low air flow. Analysis of the printed circuit board assembly industry and consumer insights.
The internal control board of SGD 500 series models adopts Mitsubishi PLC recognition and intelligent motherboard control design, which can easily complete various control function planning.
The AC500 series models are embedded with PID - MODBUS-DP communication protocol, which can quickly and conveniently complete various control function planning.
LED+film panel control panel real-time screen projection; Emergency stop button; Emergency stop button; Voice alarm; LCD drive; Bluetooth low-power standby mode; Adjustable backlight transmitter; Adjustable blue LED handheld terminal; On board isolation power switch, storage card on board isolation power switch; Two LED indicator lights, with 24VDC in the lower breathing area; Three LED backlight power consumption indicator lights, with 24VDC in the upper breathing area. Multi channel isolation power switch, 3 normally open, 2. 12V power supply.
◆ 5V DC voltage, 24V rectification filtering, 12V output, 14V output.

◆ Internally integrated with three differential inputs, it can directly drive a 24V on-board charger. When the input voltage exceeds 100V, it will automatically cut off, achieving 100V input. When a certain power supply fails, it can also output 230V.
◆ Voltage and current limiting function to maintain stable voltage output and control the output voltage of the charger.
The CC pin can input large current, and its output current can be adjusted through an external resistor. Its interior is fine filtering, simplifying the entire circuit.
◆ Built in overvoltage protection circuit, it can automatically cut off the output capacitor when the output voltage is higher than the battery voltage, avoiding battery explosion caused by battery voltage rise.
◆ Adopting current mode sampling and current mode PWM control method, with strong anti-interference ability and load overvoltage protection function.
The output overvoltage protection value can be adjusted to the standard through an external resistor, facilitating the adjustment of output voltage and current. Short circuit protection is used to prevent the output from exceeding the set limit voltage and avoid damaging power circuit components.
Power output range of power supply: (02-35) mA, output voltage accuracy: ± 05% ± 1 word.
Voltage standing wave ratio: 5-12V (divided into 3dB) Dynamic range: 5-16Hz Gain bandwidth: 25MHz.
Working temperature: -40 ° C~+105 ° C Storage temperature: -40 ° C~+105 ° C Rated current: 1A.
I/O: When inputting 40V (3-wire system) voltage, current, power, and resistance, the default parameter is VCC/VOUT. Based on this parameter, how should we choose the transistor? It is a bidirectional relay (power factor correction) with three high and low voltage contactors to operate.
MOSFET, gate driver, MOSFET's induction coil is an extension of MOSFET. The voltage between the primary and secondary of NMOSFET can be adjusted by external induction if the MOSFET is too large.