When wiring the WEIHONG NK260/280 controller, you need to pay attention to the following:
1. Personnel participating in wiring and inspection must have the ability to complete this work;
2. The numerical control device must be grounded reliably and the grounding resistance should be less than 4 ohms. Never use a neutral wire instead of a ground wire. Otherwise, it may not work properly due to interference;
3. Wiring must be correct and firm, otherwise, it may cause malfunctions;
4. The voltage value and positive/negative (+/-) polarity on any one of the wiring plugs must meet the specifications of the manual, otherwise, faults such as short circuit or permanent damage to the equipment may occur;
5. Before inserting or removing the plug or toggle switch, keep your fingers dry to prevent electric shock or damage to the numerical control device;
6. The connecting wire should not be damaged and cannot be squeezed, otherwise, leakage or short circuit may occur;
7. Do not plug or unplug the power supply or open the CNC chassis.
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