Visual inspection before the CNC system is powered - Solutions - Huaqiang

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

Single chip microcomputer STM32L151CCU6

MOS power IC full range

SMD aluminum electrolytic capacitor

1. Machine tool electrical inspection Open the machine tool electric control box, check the relay, contactor, fuse, servo motor speed, control unit socket, spindle motor speed control unit socket, etc. Whether there is looseness, if it is loose, it should return to normal state, there is locking The connector of the mechanism must be locked. The machine with the transfer box must check the socket on the transfer box, the wiring is loose, and the locking mechanism must be locked.

2, CNC electric box check to open the CNC electric box door, check all kinds of interface sockets, servo motor feedback line socket, spindle pulse generator socket, manual pulse generator socket, CRT socket, etc. If you have loose, you have to re-plug it, there is The locking mechanism must be locked. Check the setting of the short-circuit terminal on each printed circuit board according to the instruction manual, and it must conform to the state set by the machine tool manufacturer. If it is wrong, it should be reset. Under normal circumstances, it is not necessary to reset it, but the user must set the short-circuit terminal. The status is the original record.

3. Wiring quality check Check all wiring terminals. Including the terminals of the strong and weak parts of the machine tool factory at the time of assembly and the terminals of the power lines of each motor, each terminal must be tightened once with a screwdriver until it is screwed with the screwdriver, each motor socket must be Tighten.

4. Solenoid valve check All solenoid valves must be pushed by hand several times to prevent malfunction caused by non-energization for a long time. If abnormality is found, record should be made to confirm repair or replacement after power-on.

5. The limit switch checks and checks whether the limited switch operation is flexible and fixed. If it is found that the operation is poor or the fixing is not strong, it should be dealt with immediately.

6. Buttons and switches Check the buttons and switches on the operation panel. Check all the buttons, switches and indicators on the operation panel. If any errors are found, they should be processed immediately. Check the sockets and wiring on the CRT unit.

7. The ground wire inspection requires a good ground wire. The grounding resistance of the machine tool should not be greater than 1Ω.

8. Check the phase sequence of the power supply. Check the phase sequence of the input power supply to confirm that the phase sequence of the input power supply and the phase sequence of the power supply marked on the machine are absolutely consistent.
Equipment with secondary wiring, such as power transformers, must confirm the consistency of the phase sequence of the secondary wiring. Make sure that the phase sequence is absolutely correct. At this point, the power supply voltage should be measured and recorded.