LF                 输出断相          1 输出电缆断线          1查清原因，恢复好断线处

                                        2电动机线圈             2维修电动机或者更换电动机                  

                                         3输出端子存在现象      3调整好输出端子

                                        4变频器功率不足         4更换变频器或电动机

 OS                  过速度            1发生了过冲/不足现象      1调整增益

                                        2指定速度太高            2修正指令回路与指令增益

                                        3 F1-08，F1-09的参数      3设定好F1-08 F1-09的参数

 PGO              PG脉冲没有输入      1PG的连线断              1修理好PG连线的断线处

                                        2 PG的连线存在错误        2修正接线

                                        3 PG没有供电              3提供正确的供电

SVE             零伺服异常             1增大力矩极限值

                                  2减少负载力矩，检查是否有信号干扰

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