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Operation and maintenance guide of variable frequency winch

Time: July 24, 2020 08:53:19 source: Internet ; click: 589 times

Frequency conversion winch has become an indispensable link in the production and operation of mineral resources. How to make this ring buckle strong and make the service cycle of frequency conversion winch infinitely longer has become an indispensable notice in our production. Today, let's organize some use and maintenance guidelines of frequency conversion winch for you to help you extend the service life of winch Life:

1. Without the permission of the manufacturer, it is strictly forbidden to modify the PLC software without permission, otherwise the adverse consequences will be borne by yourself.

2. After parking, the brake handle must be pulled back to zero in time to facilitate the next drive or fault reset.

3. Before driving, the driver should put all kinds of change-over switch and operating handle in the correct position, and then reset the accident and start the car

4. In case of emergency system failure, the alarm bell on the driver's desk will ring. However, if the cause of the fault is not found out, please do not reset the accident.

5. The service life of PLC battery is generally 3 years. When the "PLC battery voltage low" indicator on PLC flashes, a new lithium battery should be replaced within one month as soon as possible to avoid program loss.

6. When the winch is running, the driver should pay attention to observe whether the indication of various instruments is normal, especially whether the deceleration point is decelerating. When the car reaches the deceleration point, there is an audio-visual indication on the driver's desk. In the process of operation, it is strictly forbidden to carry out various operation conversion.

7. Brake maintenance: turn on the oil pump first, then turn the change-over switch to the "manual" position, and turn the brake maintenance switch to the dead brake or active brake position, which is used for the maintenance of brake discs on both sides.

 Variable frequency winch

8. It is strictly forbidden to apply the brake when the winch is running. The speed can only be adjusted by the master handle. Turning the material conversion knob to the "transport" position can be limited to 2m / s.

9. If the difference between the position indicated by the "digital depth indicator" and the actual position is too large, the fault signal of "large position deviation" will be reported on the driver's desk. At this time, synchronous correction should be carried out in time. Otherwise, there will be a great error between the deceleration signal generated by PLC and the overwind signal.

10. The electric control box should not be cut off for a long time, otherwise the components in the box are easy to be damaged by damp.

11. The system is equipped with "digital depth indicator" forced reset function, put the "master handle" in the "lift" position, press the "emergency stop" button, press the "accident reset" button for 10 seconds, then the right depth indication value can be set to zero; when it is in the "down" position, after 10 seconds of pressing the "accident reset" button, the right depth indication value can be set to a large depth. This function is only used when the tramcar stops at the upper or lower terminal position, and the position indicated by the depth indicator deviates greatly from the actual position.

12. Modification of well depth value: set the operation mode change-over switch to the "manual" position, and the emergency mode change-over switch to the "emergency 1" position. Pull the master handle to the zero position, and press the "maintenance" and "reset" buttons for 10 seconds at the same time, the maintenance indicator lamp will flash rapidly, and then the well depth value modification mode will be entered. At this time, pull the master handle to the "lift" position and press the "maintenance" button to "roughly reduce" the travel. If the "accident reset" button is pressed at the same time, the travel can be "reduced": if the master handle is pulled to the "lower" position, press the "maintenance" button, It can "rough add" the stroke, and press the "accident reset" button at the same time to "fine add" the stroke.

Pull the master handle to the zero position, and press the "maintenance" and "reset" buttons for 8 seconds, the maintenance indicator light flashes quickly and goes out. At this time, the well depth value modification mode is exited.

After modifying the travel, the emergency mode transfer switch should be turned to the "normal" position to check whether the depth has been modified at the same time. If it has not been changed, the emergency mode transfer switch should be turned to each position separately to check whether the modified values are completely consistent. Please do not use this function easily when the slant length is not growing much. This function must be used by professional maintenance personnel.

13. The main maintenance points of electric control device include: shaft encoder, arch switch, master handle potentiometer and intermediate relay, etc. the sensitivity and reliability of these devices shall be checked frequently, and sufficient spare parts shall be provided.

14. In case of "over winding" fault reset, the driver can only drive in the opposite direction. (Note: overwinding can be divided into hardware and software. In case of software overwinding, please drive the vehicle to zero and reset the digital depth indicator).

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eighteen billion two hundred and thirty-nine million two hundred and eighteen thousand one hundred and eighty-eight

Mobile phone: 18239218188

Address: intersection of Heqi Avenue and Weishi Road, Qibin District, Hebi City

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