1. Power supply in front of the device
The problem rate of the power supply is very high in the programming of the KUKA robot in the whole problematic device, so it is easy to overhaul the power supply first.
2. First the general and then the special
Faults caused by assembly quality or other equipment faults generally account for about 50% of common faults. The special faults of electrical equipment are mostly soft faults, which need to be measured and repaired through experience and instruments. For example, because a 0.5 kW motor cannot move the load, some people think that it is a load problem. According to our experience, we should give priority to wearing thick gloves and grabbing along the direction of rotation of the motor, and as a result, we were caught, which is the problem of the motor itself.
3. First outside and then inside
Do not rush to replace the damaged electrical components, and consider replacing the damaged electrical components of the KUKA robotic arm after acknowledging that the peripheral circuits are normal.
4. DC first and then communication
During maintenance, it is necessary to check the static operation point of the DC circuit first, and then check the dynamic operation point of the communication loop.
5. Debugging after failure.
For the electrical equipment that coexists with debugging and faults, the faults should be removed first, and then the debugging should be carried out under the premise that the circuit is normal.
6. Move your mouth before you start
For faulty electrical equipment, we should not rush to start, we should first ask the cause of the fault and the reason is not an obstacle. For unfamiliar equipment, you should be familiar with the circuit principle and structural characteristics, and abide by the corresponding rules. Before disassembling and unloading the truck, you should be fully familiar with the function, orientation, connection method and connection with other surrounding devices of KUKA robotic arm, if there is no assembly drawing, sketches and symbols should be made when dismantling.
7. First outside and then inside
See if the device has significant cracks and shortcomings, learn about its repair history and service life, and then look at the equipment to see inside the machine. Before dismantling, sweep away the surrounding faults, admit that it is an internal problem and then disassemble it, if you blindly disassemble the equipment, the situation will get worse and worse.
8. Mechanical first and then electrical
Only after acknowledging that there is no problem with the mechanical parts should an electrical inspection be carried out. When checking for faults in the circuit, it is necessary to use the detector to find out the fault, and then check the connection between the circuit and the mechanical operation after acknowledging that there is no defective contact problem, so as to avoid misjudging the programming of the KUKA robot.
9. Static first and then dynamic
When the equipment is not powered on, check whether the buttons, contactors, thermal relays, and fuses of the electrical equipment are in good condition to confirm the fault. Energize the test, listen to the sound, measure the parameters, identify the fault, and carry out repairs. For example, when the motor is out of phase, if the measured three-phase voltage cannot be distinguished, the sound of the KUKA robotic arm should be listened to, and each phase should be measured separately Only when the voltage is applied to the ground, can we determine which phase has shortcomings.
10. Clean before repair
For the electrical equipment with severe pollution, the buttons, wiring points, and contact points should be cleaned first, and the external environment control keys should be checked to see if they are out of order. Many problems are caused by dust and conductive dust. Once cleaned, the problem is often wiped out.
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