Kenwei Multihead Weigher: Troubleshooting Vibrator Issues for Optimal Performance

Maintaining peak performance of your multihead weigher machine is crucial for efficient packaging processes. This article, brought to you by Kenwei, delves into common issues related to vibrators in your Kenwei multihead weigher and offers practical troubleshooting steps. The focus is on addressing a scenario where one of the vibrators is not functioning correctly.

Let's consider the scenario where the No. 1 vibrator isn't operating. The video guide demonstrates a systematic approach to diagnose and rectify this issue. First, the operator accesses the machine's control panel and navigates to the manual test mode. By selecting the specific vibrator (No. 1 in this case) and activating it through the interface, the operator can immediately confirm whether the vibrator is indeed unresponsive.

If the vibrator fails to activate, the next step involves checking the machine's parameter settings. It's important to verify that the "Line Amplitude" and "Linear Time" parameters are appropriately configured. Insufficient amplitude or time settings can prevent the vibrator from functioning as intended. If these settings appear correct, the operator proceeds to the running interface to further diagnose the problem.

The control panel allows for individual amplitude adjustment. By entering this mode, the amplitude of each vibrator can be examined and modified. In some cases, a reduced amplitude setting may be the cause of the issue. However, if adjusting the amplitude doesn't resolve the problem, a deeper investigation is needed.

The video guide then directs attention to the machine's internal components. The chassis cover is opened to reveal the motherboard, the central processing unit of the multihead weigher machine. The emergency stop button is engaged to ensure safety during the inspection. One potential cause is identified as incorrect wiring, specifically an exchange of the P161 and P162 lines on the motherboard. This wiring error can disrupt the signal to the vibrator.

Another potential issue highlighted in the video is a faulty control signal from the motherboard. To test this, the operator can manually debug the system, activating another vibrator and observing its behavior. If the No. 2 vibrator does not operate when the No. 1 vibrator is triggered, it could indicate a problem with the main board's control signal. Likewise, the fuse holder of No.1 should be checked. If the fuse doesn't burn, the internal components of the motherboard may be damaged.

The guide also delves into inspecting the wiring connections and coil resistance of the vibrator itself. Loose connections or a damaged coil can prevent the vibrator from operating correctly. A multimeter is used to measure the resistance between P151 and P161. If the value between P151 and P161 is 0Ω, remove an aluminum box and find the vibration adapter plate. Measure the resistance between P151-P161 on the vibration adapter board and if the resistance value is 0Ω, if there is no contact failure, measure the coil resistance of the line vibrator. If the resistance is 0Ω, judge the coil is burnt out or the coil is open, and replace the coil. It's critical to ensure the magnet and coil have the correct gap, which is usually 4mm.

By following these troubleshooting steps, you can effectively diagnose and address vibrator issues in your Kenwei multihead weigher machine, ensuring optimal weighing accuracy and efficient operation. Remember to always prioritize safety when working with electrical equipment and consult the Kenwei user manual for further guidance.

With Kenwei's commitment to quality and innovation, our multihead weighers are engineered for reliability and performance. This troubleshooting guide underscores our dedication to providing comprehensive support and empowering our customers to maintain their equipment effectively.