Repair solutions in the event of a failure of the Siemens 840D CNC system
1. Zero point adjustment.
When performing repairs on the Siemens 840D CNC system, O&M personnel can use common technologies to improve the efficiency of fault repairs, such as zero-point adjustment technology. The zero-point adjustment operation mainly consists of 3 steps: After the back cover of the device is removed, the encoder inside is exposed, and the zero-point adjustment is realized by adjusting the encoder;Reset the relevant parameters of the encoder;The parameters of the encoder are corrected, because there is a gap between the parameters set in the second step and the previous parameters, and the operation and maintenance personnel need to use the gap between the two as a reference point offset, and input the data of the reference point offset into the encoder to complete the zero point adjustment of the Siemens 840D CNC system.
2. Check the power module.
In the fault of the Siemens 840D CNC system, the proportion of power module faults is relatively high, and O&M personnel need to regularly check the power module to ensure its stable operation. Generally speaking, power modules are mainly checked with a universal meter because of the universal meter.
The current value and voltage value of the system can be accurately measured, and the fault condition of the system can be understood by comparing the measured value with the standard parameters. When the Siemens 840D CNC is in normal operation, the resistance measured by the universal meter is infinite.
3. Optimize the drive
In the case of the Siemens 840D CNC system, the optimization of its drive is the optimization of the current, position, and speed loops. The optimization measures of the current loop are relatively simple, because when the current loop leaves the factory, the manufacturer has set the parameters according to the optimal principle, and the optimization of the current loop by the operation and maintenance personnel is to check and run the parameters of the current loopThe optimization measures of the location ring require O&M personnel to take corresponding optimization measures based on the actual operating conditionsThe optimal speed of Siemens 840D CNC system is 10 m s, and the material of the speed loop needs to meet the standard requirements and have good driving performance, so as to ensure the stable operation of the speed loop.