Numerical control machine tool numerical control system installation and debugging matters needing attention

Numerical control system of signal cable connection including the numerical control device and MDI/CRT unit, electrical cabinets, machine tool control panel, spindle servo unit, feed servo unit, test device of feedback signal lines connected, the connection must comply with the provisions of the random provides the connection of the manual. Numerical control system installation and debugging should be paid attention to: 1, the numerical control machine ground connection is very important, a good grounding for equipments and personal safety is very important, not only can reduce the electrical interference at the same time, ensure the normal operation of the machine tool. Ground radiant grounding method commonly, namely signals in the numerical control system, MCC, framework, machine tools, such as site is connected to the public, public place then connected to the earth. Numerical control system between the electrical cabinets and heavy current cabinet grounding cable has to be thick enough. 2, in front of the machine electricity, according to the circuit diagram, according to the module circuit connection, check the lines and connection of all components in turn. Review the first level of transformer; Switch power supply, wire; Relay, contactor coil and the position of the contact wire, etc. 3, in the case of power cuts test are as follows: the three-phase power supply to ground resistance measurement, and resistance measurements; Single phase power supply for resistance measurements; 24 v dc power supply to ground resistance, polarization resistance measurements. If found the problem, before the unresolved, forbidden machine electricity experiment. Before 4, numerical control machine tools in the electricity to use phase sequence table check three-phase main switch flowing into the power cord phase sequence is correct, and the servo motor and mechanical load release, otherwise once the servo motor power phase sequence wrong, there will be a 'flying car' failure, prone to mechanical impact damage to the machine tool. Should be in the power supply is connected at the same time, ready to press the stop button. 5, in the case of electrical inspection found no problems, current detection in turn in the following order: three lines of main switch plug in, check whether the power supply is normal, observe the voltmeter, the power indicator light; In turn connected to the circuit breaker, check voltage; Check the switching power supply ( Into ac 220 v dc 24 v) Into the line and the output voltage. If you find problems, before the open, for the next test is strictly prohibited. 6, if the normal NC can be started, observe the phenomenon of CNC system. After all normal input machine, servo system parameters, system parameters into the PLC program. Close the machine, and then connect the servo motor and mechanical load, mechanical and electrical alignment.