Repair: The power on indicator light of the Keyence LiDAR does not light up

Repair: The power on indicator light of the Keyence LiDAR does not light up

Shanghai Yaoyou Electric Co., Ltd. repairs the Keyence LiDAR power on indicator light that does not light up. We repair Keyence LiDAR/Keyence LiDAR scanners and industrial equipment quickly and effectively. Our company's inventory includes various series of Keyence accessories and the necessary parts for repair, including modules, capacitors, chips, and other core components, which are all original and not easily damaged. Many of them are scrapped after repair. If repairs are needed, they can be sent to our company for processing. In addition, our company's Keyence laser radar simulation testing platform and other online speedometers are complete. With the addition of the Keyence repair team, we can ensure the success rate of laser radar repairs. Our company has gained recognition from peers and users with reasonable prices and good reputation

Deep analysis of fault phenomena**
When the ABB variable frequency cabinet display screen returns to zero, there are usually three typical manifestations: first, the black screen only displays' 0 '; The second is to alternate flashing '0' with other error codes; The third is displaying '0' but the device still keeps running. According to the maintenance records of a chemical plant in Changzhou, the third situation is often related to the aging of capacitors in the power module, while the first situation often occurs due to faults in the main control board. It is worth noting that the technical notice released by ABB in 2024 pointed out that the ACS880 series frequency converter has a display anomaly vulnerability in firmware version V3.11, which suggests that we need to first rule out software compatibility issues.Power circuit detection**
Repair: The power on indicator light of the Keyence LiDAR does not light up

Use a multimeter to measure the phase to phase voltage of input terminals R/L1, S/L2, and T/L3 in sequence, which should be within the normal range of 380V ± 10%. A case study in a paper mill showed that when the L2 phase voltage was detected to be only 198V, it was ultimately discovered that the contact of the fuse in the workshop distribution cabinet was poor. Special attention should be paid to checking the DC bus voltage. The normal value should be around 1.35 times the input voltage. If it is lower than 300V, the rectification module needs to be carefully inspected.