1.If there is excessive insertion/withdrawal force or sticking, it may be due to terminal deformation, housing misalignment, or foreign object obstruction.

It is recommended to first check whether the terminals are tilted (visually or with a magnifying glass).

Second, confirm whether the insertion direction is correct.

Third, use an air gun to clean out dust or debris from the insertion holes.

2.If looseness or automatic disconnection occurs after connection, it may be due to unlocked fasteners or hooks not being fully engaged.

It is recommended to first press the hooks on both sides of the connector until a "click" sound confirms locking.

Second, check whether the housing is deformed (e.g., due to compression during transportation).

3.If the device displays "No connection detected," it may be due to oxidized contact points or poorly soldered pins.

It is recommended to first gently wipe the metal contacts with a cotton swab dipped in anhydrous alcohol.

Second, check whether the solder joints are bright and full (if blackened/cracked, re-soldering is required).

4.If intermittent signals or noise interference occur, it may be due to damaged shielding layers or interference from nearby high-voltage equipment.

It is recommended to first check whether the cable shielding layer is intact.

Second, keep the device away from motors/transformers during installation, or use magnetic rings for filtering.

Third, verify whether the interface type (e.g., RJ45, USB) matches the device protocol.

5.If a single channel fails in a multi-channel system, it may be due to poor contact in that specific circuit or a wiring short.

It is recommended to first test the continuity of the affected channel (abnormal if multimeter resistance reading exceeds 1Ω).

Second, if it is an analog module, short the M- and M+ terminals of the unused channels.

6.If noticeable heat generation occurs in the connector, it may be due to overcurrent or excessive contact resistance.

It is recommended to first verify whether the current exceeds the rated value (refer to the product specification sheet).

Second, check whether the terminals are oxidized (cleaning required if gray/green corrosion spots are visible).

7.If housing cracks or deformation occur, it may be due to mechanical impact or excessive installation stress.

It is recommended to first confirm whether the screw fastening torque exceeds the specification.

Second, avoid bending cables at angles greater than 90 degrees.

8.If bent or broken pins occur, it may be due to transportation compression or mishandling.

It is recommended to first gently straighten the pins with tweezers (only applicable for slightly bent pins without damage).

Second, if the pin is broken at the root, the connector must be replaced.

9.If rust/corrosion occurs on metal parts, it may be due to hand sweat contamination or exposure to humid environments without protection.

It is recommended to first select IP68-rated sealed products for industrial environments.

Second, gently wipe minor rust stains with electronic cleaner.