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7 Basic Operation Instruction ............................................................................................ 93
7.1 What this chapter contains ................................................................................ 93
7.2 First powering on .............................................................................................. 93
7.3 Vector control.................................................................................................... 95
7.4 Torque control ................................................................................................... 96
7.5 Parameters of the motor ................................................................................... 97
7.6 Start-up and stop control ................................................................................... 98
7.7 Frequency setting ............................................................................................. 99
7.8 Simple PLC .....................................................................................................100
7.9 Multi-step speed running ..................................................................................100
7.10 PID control .....................................................................................................101
7.11 Pulse counter .................................................................................................103
8 Fault Tracking ...............................................................................................................104
8.1 What this chapter contains ...............................................................................104
8.2 Alarm and fault indications ...............................................................................104
8.3 How to reset ....................................................................................................104
8.4 Fault history .....................................................................................................104
8.5 Fault instruction and solution............................................................................104
8.6 Common fault analysis .....................................................................................108
8.6.1 The motor does not work...............................................................................108
8.6.2 Motor vibration ..............................................................................................109
8.6.3 Overvoltage ..................................................................................................109
8.6.4 Undervoltage fault ......................................................................................... 110
8.6.5 Abnormal motor heat ..................................................................................... 110
8.6.6 Inverter overheating ...................................................................................... 111
8.6.7 Stall during the acceleration of the motor ....................................................... 111
8.6.8 Overcurrent................................................................................................... 112
8.7 Inverter system interference troubleshooting .................................................... 112
8.8 Maintenance and hardware diagnostics ........................................................... 113
8.8.1 Overcurrent................................................................................................... 113
8.8.2 Cooling fan ................................................................................................... 115
8.8.3 Capacitors .................................................................................................... 116
8.8.4 Power cable .................................................................................................. 117
9 Communication Protocol ............................................................................................... 118
9.1 What this chapter contains ............................................................................... 118
9.2 Brief instruction to MODBUS protocol .............................................................. 118
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