焊接頭問題:安全地鎖或扳機按鈕信號常閉(中英)

本文適用以下問題表現:

This document applies the following issues:


1.在不扣動扳機的時候,扳機信號常亮

1. When the trigger is not pulled, the trigger signal is always on


2.在安全地鎖未接觸到工件時,安全地鎖常亮

2. When the safety lock does not touch the workpiece, the safety lock is always on


3.沒有以上動作的時候,自動出光

3. When there is no above action, it will automatically shine


原因分析與處理

Cause analysis and treatment


通過拔掉信號接口一的信號腳,如存在【安全地鎖信號】及【扳機按鈕信號】有一個或兩個都亮的情況下,直接更換主控板

By unplugging the signal pin of signal interface one, if there is [Safety lock signal] and [Trigger button signal] when one or both are on, directly replace the main control board


如果拔掉不亮了,則說明是線路短路,通過萬用表測量對應的通斷即可,具體的電路邏輯參見安全地鎖扳機按鈕?

If it is unplugged and does not light up, it means that the line is short-circuited, and the corresponding on-off can be measured through the multimeter, and the specific circuit logic can refer to the safety lock and trigger button


根本原因的產生:

Root causes:


由于該器件主要作用是防護電壓過大導致主板內部器件燒毀且此處電壓正常不會超過電源電壓。因此,很可能是客戶現場環境導致有較強靜電或者瞬間高電壓將其擊穿導致。

Since the main function of the device is that the protection voltage is too large, causing the internal device of the motherboard to burn, and the voltage here is normal, it will not exceed the power supply voltage. Therefore, it is likely that the customer's site environment causes strong static electricity or instantaneous high voltage to break it down.


建議和改善措施:

Recommendations and improvement measures:


1 建議客戶保持焊接平臺接地良好,機器外殼接地良好。必要時單獨打地樁

1 It is recommended that the customer keep the welding platform well grounded and the machine shell well grounded. If necessary, separate piles are driven


2 焊槍在不使用時放在指定位置,不要隨意放置。

2 The welding torch is placed in the designated position when not in use, do not place it arbitrarily.


3 佩戴靜電防護設備,對人員及機器都有一定的保護作用。

3 Wearing electrostatic protective equipment has a certain protective effect on personnel and machines.