变频器被送来时，有若干不同的报警记录。在通电测试过程中同样出现各种虚**报警。认真清洗控制板与驱动板连接扁平电缆插座焊点后，问题解决。
硬件故障
这类故障主要指系统中的模板（特别是I/O模板）损坏而造成的故障。这类故障一般比较明显，影响局部。
l TAR1 AR2将地址寄存器1的内容传输到地址寄存器2
l TAR1 将地址寄存器1的内容传输到目的单元（32位）
l TAR2 将地址寄存器1的内容传输到目的单元（32位）
l TAR1 将地址寄存器1的内容传输到累加器1
l TAR2 将地址寄存器1的内容传输到累加器2
l CAR 交换地址寄存器的1的内容和地址寄存器2的内容交换
After preliminary inspection, the rectification part and inverter part of Siemens CNC axis card were in good condition, so it was powered on for inspection. The DC bus voltage is normal, but the starting voltage of the switching power supply control chip 3844 is only 2V. The resistance value of partial voltage resistance is much smaller in online detection, and it is normal in offline detection. The problem was solved after the Siemens CNC axis card was repaired by washing method. It turned out that the positive pin pad of a capacitor was very close to the 0V layer, and the residual flux made it in a semi conducting state.
When the frequency converter is sent, there are several different alarm records. Various false * * alarms also appear during the power on test. The problem was solved after carefully cleaning the welding point of the flat cable socket connecting the control board and the drive board.
Hardware failure
This kind of failure mainly refers to the failure caused by the damage of the template (especially the i/o template) in the system. This kind of fault is generally obvious and affects local parts.
L tar1 ar2 transfers the contents of address register 1 to address register 2
L tar1 transmits the contents of address register 1 to the destination unit (32 bits)
L tar2 transmits the contents of address register 1 to the destination unit (32 bits)
L tar1 transfers the contents of address register 1 to accumulator 1
L tar2 transfers the contents of address register 1 to accumulator 2
L car exchanges the contents of address register 1 and address register 2
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