
Goodrive20-EU series VFD Contents
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3.4.3 Implementing a bypass connection ....................................................................25
4 Keypad operation procedure ............................................................................................26
4.1 Keypad introduction.....................................................................................................26
4.2 Keypad displaying .......................................................................................................29
4.2.1 Displayed state of stopping parameter...............................................................29
4.2.2 Displayed state of running parameters...............................................................29
4.2.3 Displayed state of fault .......................................................................................29
4.2.4 Displayed state of function codes editing ...........................................................30
4.3 Keypad operation ........................................................................................................30
4.3.1 How to modify the function codes of the VFD ....................................................30
4.3.2 How to set the password of the VFD..................................................................31
4.3.3 How to watch the VFD state through function codes..........................................31
5 Function parameters..........................................................................................................32
6 Fault tracking....................................................................................................................101
6.1 Maintenance intervals................................................................................................101
6.1.1 Cooling fan........................................................................................................103
6.1.2 Capacitors.........................................................................................................105
6.1.3 Power cable......................................................................................................105
6.2 Fault solution .............................................................................................................106
6.2.1 Alarm and fault indications................................................................................106
6.2.2 How to reset......................................................................................................106
6.2.3 Fault instruction and solution............................................................................106
6.2.4 Other states ......................................................................................................112
7 Communication protocol.................................................................................................113
7.1 Brief instruction to Modbus protocol ..........................................................................113
7.2 Application of the VFD...............................................................................................113
7.2.1 Two-wire RS485................................................................................................113
7.2.2 RTU mode.........................................................................................................116
7.2.3 ASCII mode.......................................................................................................119
7.3 Command code and communication data illustration................................................120
7.3.1 RTU mode.........................................................................................................120
7.3.2 ASCII mode.......................................................................................................124
7.4 Definition of data address..........................................................................................127
7.4.1 Rules of parameter address of the function codes...........................................128
7.4.2 Address instruction of other function in Modbus...............................................128
7.4.3 Fieldbus ratio values.........................................................................................132
7.4.4 Fault message response ..................................................................................133
7.5 Example of writing and reading .................................................................................134
7.5.1 Example of reading command 03H ..................................................................135
7.5.2 Example of writing command 06H....................................................................135
7.5.3 Example of continuous writing command 10H .................................................137
7.6 Common communication fault...................................................................................139
Appendix A Technical data .................................................................................................140
A.1 Ratings......................................................................................................................140
A.1.1 Capacity............................................................................................................140