5.1
故障报警及对策
Failure alarm and policies
87
5.2
常见故障及其处理方法
Common failure and solve methods
变频器使用过程中可能会遇到下列故障情况，请参考下述方法进行简单故障分析
:The
frequency converter maybe meeting the below failure situation during use, please process simple
failure analyse refer to the below methods
序号
S/N
故障现象
Failure
appearance
可能原因
Possible reason
解决方法
Solve method
1
上电无显示
Power on but no
indication
电网电压没有或者过低；
No power grid voltage
or too low
变频器驱动板上的开关电源故障；
Switch power
supply failure on frequency converter drive board
整流桥损坏；
Rectification bridge damaged;
变频器缓冲电阻损坏；
Frequency converter
buffer electric resistance damaged;
控制板、键盘、键盘线故障；
Control board,
keyboard, keyboard wire failure
控制板与驱动板、键盘之间连线断；
Wiring
among control board, drive board and keyboard
broken;
检查输入电源；
Check input power
supply;
寻求厂家服务；
Seeking factory service
检查母线电压；
Check bus line voltage;
寻求厂家服务；
Seeking factory service
更换键盘线排线或联系厂家；
寻求厂家服务；
Seeking factory service
