The governor appears to be all backwards R, and there is no fault, what is the reason?

The overhead crane pays the lifting governor because the cooling fan does not report the fault. The converter 20t overhead crane has been damaged due to the temperature measuring element. The device does not report the fault, the measuring brake relay has no voltage, and the resistance between the input and output of the measuring device is measured.

It's all theft when I just went out, and there's no failure mode, there's that bag.

If the governor does not report a fault, it may be that the display is not complete, or it may be an internal circuit problem.

Let's consider the following situations:

First, after powering on, there is a display on the control panel screen, the run light is also on, and the inverter does not respond. If it is normal, then, it may be a problem with the parameter setting, for example, if there is a potentiometer, the potentiometer is at the zero position, it will definitely not rotate, if it is driven by the feedback voltage and current signal, there is no feedback signal, and there is definitely no way to work normally.

Second, if the screen doesn't respond, it must be that the inverter is broken;

Third, it may be that the harmonics in the power grid are too large, causing the inverter to refuse;

That's pretty much it, I hope it can help you ......

There is no way to help you analyze this situation here, so please ask the master to check it for you on the spot.

What is the reason why there is a knife full of blood when I go out, and I don't report the fault? This should be a certain problem with which software.,Let's take a look at it more.。

Carbon deposition will cause insufficient combustion of gasoline, so that the engine will shake. The impact of engine carbon deposition on the automobile is quite large, first of all, it reduces the power of the DAO engine, that is, the power output is uneven and gradually decayed, in other words, it is more and more weak. The second is to increase fuel consumption and increase your financial burden.

The third is the difficulty of cold start, that is, the difficulty of ignition, it is not easy to get on the car, and finally the carbon deposit in the combustion chamber is strict, and a heavy one will also cause cylinder detonation, and there will be a sound of low-speed acceleration, which will cause damage to the piston and crankshaft, and cause high temperature of the engine, which will seriously affect the safety of the car. Then there is the excessive discharge, which not only fails the annual inspection and inspection, but also directly aggravates the harm of polluting the environment.

The power supply of the F001 electronic board is faulty.

Solution: Cut off the power supply and check whether the CUD1 board is damaged.

F004 Main Circuit Power Failure.

Solution: Use a multimeter to check whether the main circuit power supply is 630V, whether the circuit breaker is closed normally, and whether the voltage feedback line of the power board has a voltage of 1U V W1 (the current voltage feedback can be viewed from R015 in the closing state).

F005 excitation circuit failure.

Solution: Check whether the excitation circuit voltage is normal (380V), excitation electricity.

whether the source switch is closed; You can also check the current excitation voltage feedback in R016.

F006 overvoltage fault.

Solution: Use a multimeter to check whether the incoming voltage of the main circuit is overvoltage.

F007 undervoltage fault.

Solution: Use a multimeter to check whether the incoming voltage of the main circuit is under-voltage.

F022 external fault (this system specifically refers to the fast fuse fault) countermeasures: <1> Check whether the power switch of the control loop is closed.

2> If the fast fusing is checked normally, K03 is in the state of power.

3> If there is a fuse situation in the fast melting, it must be advanced in the thyristor.

Yes. Check whether there is any damage to the thyristor, and after replacing it with a new fast-melting or thyristor, P830=3 must be self-tested by the thyristor.

F035 drives stalled rotors.

Solution: Check the operation of the motor and whether there is any stalled rotor phenomenon.

F038 Overspeeding.

Solution: Check whether the encoder wiring is normal, and you can also check the excitation.

Whether the circuit is working properly. Sometimes, the F38 phenomenon will also occur when the 1C D1 feedback line is reversed.

F040 in the excited-active fault state, the power supply of the electronic board is cut off, that is, the last time.

The barrier has not been reset.

Solution: Press the P button to reset the fault, if the fault cannot be reset, the fault still exists.

F042 tachometer malfunction.

Solution: Check whether the encoder is normal.

Check the fault value of R047.

Open circuit for the encoder cable.

If the polarity of the encoder is incorrect, you can replace the two wires of A and A-.

The F048 encoder measurement channel is faulty.

Solution: Check whether the encoder is wired correctly, and then check the encoder against the fault value, if the fault value is 2, it is likely that the encoder is damaged.

F061 thyristor detection fault (pay attention to the fault value).

Solution: Check the fault value displayed in R047 to determine which group can be.

Failure of silicon control. (Note: Be sure to perform P830=3 for thyristor self-test before closing).

LaCrosse does not go away from the D gear, and the R gear does not fall down Analysis:

1. Check whether it is adjusted to the manual gear.

2. It may be a problem with the gearbox D-gear, a problem with the sensor, or a problem with the computer board program.

3. It may also be caused by the lack of oil in the gearbox, or the half-shaft cage screw will also cause the gear to be hung up but the car will not go.

4. If you park for a short time, the gear does not go, you can re-ignite, re-hang the gear, and start again, the electronic control part of the LaCrosse network is more complicated, the signal may not be received correctly, there is an occasional sudden failure, if the fault light is not on, there is generally no big problem, and there will be no fault record, if this problem often occurs, go to the 4S store for detailed inspection.

Check the oil pump or shift actuation valve.

According to your description, when shifting into reverse gear, the R light flashes to alarm, this happens, most of the reason is that the computer thinks that the automatic transmission reverse gear is faulty, which will cause the vehicle to not be able to achieve reverse gear, it is recommended to use a fault diagnostic instrument for diagnosis! If your car can be driven in reverse gear, you can observe it for a while, and if it occurs frequently, you should also use a fault diagnostic instrument to further diagnose the cause of the failure.

Turn off the engine cover and see, it may be that the power transmission belt is broken, which causes the assistant to not work, and occasionally the booster is broken, and then check whether the booster oil is there, it is generally unlikely that there will be other major problems, it should be a problem with the belt, check it carefully.

If there is no power supply, then see if there is a problem with the governor itself.

Midea's five-speed ceiling fan governor has no power supply, and the output should be abnormal in the fifth-gear buttons.

Midea's unstoppable drop line is comfortable and has no power output, it should be called out, and the potentiometer is faulty.

In this case, there may be a problem with your power supply.

You can see if your power supply is plugged in properly.

Or test whether the output of your power supply is normal.

If there is no output, it may be that there is a problem with the governor and the debugger is broken, so replace one.

There may be interference in the inverter, see if the grounding of the control card (CPU card) and metal radiator of the inverter is good, and it may be that the control card of the inverter is broken.

Don't you know that?