What will be the reason why the handle of the three phase electric hoist is useless

The three-core high-voltage cable with the armored steel belt is not magnetized due to the zero vector sum when passing through the three-phase current, and if the armored steel belt is magnetized through the one-phase current, it will heat up due to eddy current loss. If it is not a three-core high-voltage cable with armored steel belt to send one-phase high-voltage electricity, as long as the current density is the same, the heating degree of the cable is the same as that when passing through the three-phase current, there will be no abnormal heating.

There may be the following situations that cause the electric hoist handle to not respond: Power supply problem: Please make sure that both the electric hoist and the electric handle are connected to a stable power supply, and the power supply** is normal.

Low battery: If the electric handle is wireless, it may be that the battery is low and there is no response, you can try to replace it with a new battery. Connectivity issues:

Please check whether the connection between the electric hoist and the electric handle is correct, including whether the cable and plug are plugged in tightly. Faulty or damaged: The electric hoist and electric handle may be faulty or damaged and need to be serviced or replaced.

Operation error: It may be because of the operation error that the electric handle does not respond, it is recommended to read the instruction manual or consult a professional for the key cavity. If the electric handle still does not respond after trying the above methods, it is recommended to contact the letter to do the after-sales service of the electric hoist for maintenance or replacement.

Do not disassemble or repair it yourself to avoid further damage.

Hello, there may be the following reasons why the electric handle of the electric hoist does not respond: 1. The battery is insufficient: please check the battery level, if the power has been exhausted, you need to charge it in time.

2. The handle is blocked by foreign objects: Sometimes the buttons on the electric hoist battery will be blocked by foreign objects, so that the PCB chip cannot receive the signal normally. In general, this can be solved by simply removing the foreign object.

3. The PCB board cannot receive normal instructions: This situation may be that the scaling on the PCB board affects the transmission, please clean the surface of the PCB board. 4. The key is damaged

Some of the keys are made of metal and rubber, and may not be damaged by impact or excessive bending. You can check to see if there is any damage, and if so, you need to replace the keys. 5. Device problems on the PCB board:

It may be caused by factors such as resistors, capacitors or potentiometers on the PCB board, and it is recommended to send it to the after-sales service center for inspection and replacement.

Summary. Hello dear, there may be the following reasons that cause the electric hoist handle to not respond: 1

Insufficient power of the handle: The handle of the electric hoist does not have enough power and cannot work properly. You can try charging it before using it.

2.Handle signal interference: There may be electromagnetic interference in the surrounding environment or the remote control signal is blocked by other devices, resulting in the handle cannot be successfully paired with the electric hoist.

You can try replacing the battery or changing the handle position to re-pair. 3.Electric hoist failure:

If neither of the above two situations is the cause of the problem, then it may be that the electric hoist itself is faulty. You can contact the manufacturer to repair or replace the device. It is recommended to check the instruction manual of the device before operating it for a better understanding of the operating procedures and troubleshooting.

At the same time, be sure to pay attention to your own safety and the safety of others.

Hello dear, there may be the following reasons that cause the electric hoist handle to not respond: 1The handle is low on battery:

The handle of the electric hoist does not have enough power to work normally. You can try charging it before using it. 2.

Handle signal interference: There may be electromagnetic interference in the surrounding environment or the remote control signal is blocked by other devices, resulting in the handle cannot be successfully paired with the electric hoist. You can try replacing the battery or changing the handle position to re-pair.

3.Electric hoist failure: If neither of the above two situations is the cause of the problem, then it may be that the electric hoist itself is faulty.

You can contact the manufacturer to repair or replace the device. It is recommended to check the instruction manual of the device before operating it for a better understanding of the operating procedures and troubleshooting. At the same time, be sure to pay attention to your own safety and the safety of others.

No need to recharge.

Dear, if the handle of the electric hoist does not respond, first of all, you need to confirm whether the switch of the handle is turned on, and whether the connection line between the handle and the electric hoist is connected normally. If neither of the above two reasons is the case, it is recommended that you follow these steps:1

Inspect the manual search handle circuit for damage, and replace or repair it if necessary. 2.Check whether the power supply of the electric hoist is connected stably, and check whether the power cord is damaged.

3.Check whether the circuit of the electric hoist itself is damaged, and replace or repair it if necessary. If you are unable to solve the problem by yourself, it is recommended to contact the after-sales service center of the electric hoist for professional help.

Summary. Hello! Dear, for you to find out that this situation may be damaged inside the electric hoist, which needs to be repaired or replaced with a new electric hoist.

I wish you a happy life, everything you think can be realized, and good luck is always with you. If the above is incorrect, please point it out and I will correct it promptly.

What's going on with the electric hoist that can only go down but not up? The upper handle can be used normally, and the lower handle can only be lowered and not up.

Hello! Dear, for you to find out that this situation may be the internal damage of the electric hoist, the need for Weibi to repair or replace the new electric hoist. I wish you a happy life, everything you think can be realized one by one, and good luck is always with you.

If the above is incorrect, you can point it out and cancel it and I will correct it in time.

The hoist works normally, and the handle below only can't be lowered.

You fool one more.

Does it work? Kiss.

That's probably because the pulley or mechanical equipment on the upper part of the hoist is malfunctioning, so that the handle can't get down. It should be sent to the manufacturer for repair or replacement with a new one in time.

I just changed a new gourd, but it still didn't solve the problem, and it was the same problem before I didn't change the hoist.

Hello dear, if the new gourd does not solve the problem, try this method, first of all, you should start from the limiter to check, generally because the limiter cut off the two phases of the early pure, and can not move upward, more to carefully observe the limit of the land staring position. You can not first short the lifting limit, so that it temporarily loses its protective effect, so that you can see whether it is a problem of limiting. If it is related to the fire-off limit switch on the electric hoist, open the fire-off limit switch of the electric hoist and add some butter lubrication after resetting.

What's going on with the electric hoist that can only go down but not up? The upper handle can be used normally, and the lower handle can only be lowered and not up.

Kiss. Hello, happy to answer your <>

Pro-cause workaround:1The voltage is too low.

The motor terminal voltage of the electric hoist is more than 10% lower than the rated voltage, and the starting torque of the motor is too small, so that the hoist cannot lift the goods and cannot work. Whether it is powered or not. Whether the power supply of the electric hoist is delivered correctly is generally tested with a test pen.

2.There is a problem with the control circuitry. The electrical damage of the main and control circuit of the electric chain hoist, the circuit disconnection or poor contact will also make the hoist motor unable to be energized, in this case, the main and control circuit need to be overhauled, and the power supply should be disconnected in order to prevent the main and control circuit from being sent to the three-phase motor for lack of phase and burning the motor.

The reasons for not being able to go up and down are relatively few, from the following types: 1. There is a problem with the control circuit. If it can indicate that the motor power supply is normal, then it can only be caused by the failure of the control loop to send a descending command. 2. There are foreign objects in the motor drive shaft of the electric chain hoist.

This kind of wheel generally does not happen, but it is not allowed to have foreign objects stuck, so after eliminating the problem of the control circuit, you can look at the transmission shaft. There is a problem with the control circuitry. If it can indicate that the power supply of the motor is normal, then the failure of the control loop to send a descending command may only be caused by the failure of the control loop.

Hope mine can help you <>

Do you have any other questions?

Summary. If the electric hoist can only be lowered but not on, it is usually the case that the rod is broken. To fix this, try checking the head connection for loose or broken parts, and if so, repair or replace the clubhead.

In addition, you can also check whether the power supply of the motor is normal, sometimes the problem caused by the insufficient power supply of the motor will also affect the lifting function of the electric hoist.

What's going on with the electric hoist that can only go down but not up? The upper handle can be used normally, and the lower handle can only be lowered and not up.

If the electric hoist can only go down and can't go up, it is usually the pole that will be broken. To solve this problem, you can try to check if the clubhead connection is loose or broken, and if there is a breakage, you can repair it or replace the clubhead. In addition, you can also check whether the power supply of the motor is normal, sometimes the problem caused by the insufficient power supply of the motor will also affect the lifting function of the electric hoist.

If the electric hoist can only go down and can't go up, it is usually the pole that will be broken. To solve this problem, you can try to check if the clubhead connection is loose or broken, and if there is a breakage, you can repair it or replace the clubhead. In addition, you can also check whether the power supply of the motor is normal, sometimes the problem caused by the insufficient power supply of the motor will also affect the lifting function of the electric hoist.

Summary. Wiring diagram of the handle of the three-phase electric hoist.

There is no emergency stop button.