VB3/VB5/V5 seires inverter 
ii 
3-2-1. Keyboard layout ........................................................................................................................................................ 28 
3-2-2. Keyboard function ..................................................................................................................................................... 28 
3-2-3. Fucntion description of LED and indicator ................................................................................................................. 29 
3-2-4. Display of the operation panel.................................................................................................................................... 29 
3-2-5. Panel operation method ............................................................................................................................................. 31 
3-3. Power on the inverter ..................................................................................................................................................... 33 
3-3-1. Checking after power on ............................................................................................................................................ 33 
3-3-2. Power on the inverter for the first time ....................................................................................................................... 33 
4 FUNCTION PARAMETERS .......................................................................................................35 
4-1. Function code .................................................................................................................................................................. 35 
4-2. Function code description ............................................................................................................................................... 51 
4-2-1. Basic operating function parameters (Group P0) ........................................................................................................ 51 
4-2-2. Parameters of frequency setting (Group P1) ............................................................................................................... 56 
4-2-3. Starting and braking parameters (Group P2) ............................................................................................................... 57 
4-2-4. Auxiliary running parameters (Group P3) ................................................................................................................... 59 
4-2-5. Function parameters of terminal (Group P4)............................................................................................................... 64 
4-2-6. Protection function parameters (Group P5)................................................................................................................. 73 
4-2-7. Fault recording parameters (Group P6) ...................................................................................................................... 75 
4-2-8. Close-loop control parameters (Group P7) ................................................................................................................. 75 
4-2-9. Simple PLC operation parameters (Group P8) ............................................................................................................ 78 
4-2-10. Swing frequency function parameters (Group P9) .................................................................................................... 81 
4-2-11. Vector control parameters (Group PA) ...................................................................................................................... 83 
4-2-12. Special application function parameters (Group PB) ................................................................................................. 84 
4-2-13. Default setting and password (Group PF) ................................................................................................................. 85 
5 FAULT DIAGNOSIS AND SOLUTION.......................................................................................86 
5-1. Fault diagnosis and solution ........................................................................................................................................... 86 
5-2. Check the fault records ................................................................................................................................................... 88 
5-3. Fault reset ....................................................................................................................................................................... 88 
6 MAINTENANCE ........................................................................................................................89 
6-1. Maintenance ................................................................................................................................................................... 89 
6-1-1. Routine maintenance ................................................................................................................................................. 89 
6-2. Periodical care and maintenance .................................................................................................................................... 89 
6-2-1.Periodical care ............................................................................................................................................................ 89 
6-2-2. Periodical maintenance .............................................................................................................................................. 89 
6-3. Warranty of the inverter................................................................................................................................................. 90 
7 COMMUNICATION PROTOCOL ...............................................................................................91 
7-1. Overview of communication protocol............................................................................................................................. 91