Kruger Ecowatt K320 Series Operation Manual page 6

Ecowatt Drive K320 series
®
5.5.11 Digital input ................................................................................................................................ 94
5.5.12 Digital output ........................................................................................................................... 103
5.5.13 Simple PLC ............................................................................................................................... 108
5.5.14 Multi-step speed running ..................................................................................................... 110
5.5.15 PID control ................................................................................................................................. 112
5.5.16 Running at wobbling frequency ........................................................................................ 118
5.5.17 Local encoder input ................................................................................................................ 119
5.5.18 Commissioning procedures for closed-loop control, position control and spindle
positioning ........................................................................................................................................... 120
5.5.19 Fault handling......................................................................................................................... 127
6 Function parameter list ........................................................................................................................ 132
5.5 What this chapter contains.............................................................................................................. 132
5.6 Function parameter list..................................................................................................................... 132
7 Troubleshooting .................................................................................................................................... 249
7.1 What this chapter contains .............................................................................................................. 249
7.2 Indications of alarms and faults .................................................................................................... 249
7.3 Fault reset .............................................................................................................................................. 249
7.4 Fault history.......................................................................................................................................... 249
7.5 VFD faults and solutions ................................................................................................................... 249
7.5.1 Details of faults and solutions .............................................................................................. 250
7.5.2 Other states ................................................................................................................................ 257
7.6 Analysis on common faults ............................................................................................................. 258
7.6.1 Motor fails to work .................................................................................................................. 258
7.6.2 Motor vibrates .......................................................................................................................... 259
7.6.3 Overvoltage ................................................................................................................................ 260
7.6.4 Undervoltage............................................................................................................................. 260
7.6.5 Unusual heating of motor ..................................................................................................... 261
7.6.6 VFD overheating ...................................................................................................................... 262
7.6.7 Motor stalls during ACC ........................................................................................................ 263
7.6.8 Overcurrent ................................................................................................................................ 264
7.7 Countermeasures on common interference ............................................................................... 265
7.7.1 Interference on meter switches and sensors .................................................................. 265
7.7.2 Interference on RS485 communication ........................................................................... 266
7.7.3 Stop failure and indicator shimmering due to motor cable coupling .................... 267
7.7.4 Leakage current and interference on RCD ...................................................................... 268
7.7.5 Live device chassis ................................................................................................................. 269
8 Maintenance ........................................................................................................................................... 270
8.1 What this chapter contains .............................................................................................................. 270
8.2 Periodical inspection ......................................................................................................................... 270
8.3 Cooling fan ............................................................................................................................................ 273
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