
Table of contents
Frequency inverter
6
Operating Instructions, 08.10. 2008, t.b.d.
Commissioning the application ................................................................................................... 70
Commissioning with the operator panel...................................................................................... 71
Function of the Basic Operator Panel......................................................................................... 71
BOP controls and displays.......................................................................................................... 72
Parameterization with the BOP (two examples) ......................................................................... 73
Commissioning steps.................................................................................................................. 74
Commissioning V/f control .......................................................................................................... 74
Data backup with the operator panel and memory card ............................................................. 77
Saving and transferring data using the BOP............................................................................... 77
Saving and transferring data using the MMC.............................................................................. 78
Functions ................................................................................................................................................. 81
5.1
Overview of inverter functions..................................................................................................... 81
Inverter control ............................................................................................................................ 83
Two-wire control, method 1......................................................................................................... 86
Two-wire control, method 2......................................................................................................... 87
Two-wire control, method 3......................................................................................................... 88
Three-wire control, method 1 ...................................................................................................... 89
Three-wire control, method 2 ...................................................................................................... 91
Command sources ...................................................................................................................... 93
Selecting command sources....................................................................................................... 93
Assigning functions to digital inputs ............................................................................................ 94
Controlling the motor via the fieldbus.......................................................................................... 95
Setpoint sources ......................................................................................................................... 96
Selecting frequency setpoint sources ......................................................................................... 96
Using analog inputs as a setpoint source ................................................................................... 97
Using a motorized potentiometer as a setpoint source............................................................... 98
Using the fixed frequency as a setpoint source .......................................................................... 99
Running the motor in jog mode (JOG function) ........................................................................ 100
Specifying the motor speed via the fieldbus ............................................................................. 101
Changing over the command data sets (manual, automatic) ................................................... 102
Setpoint preparation.................................................................................................................. 105
Minimum frequency and maximum frequency .......................................................................... 105
Parameterizing the ramp-function generator ............................................................................ 106
Closed-loop control ................................................................................................................... 108
V/f control .................................................................................................................................. 108
5.7.1.1 Typical applications for V/f control ............................................................................................ 108
5.7.1.2 V/f control with linear characteristic .......................................................................................... 109
5.7.1.3 V/f control with parabolic characteristic..................................................................................... 110
5.7.1.4 Additional characteristics for the V/f control.............................................................................. 111
Vector control ............................................................................................................................ 112
5.7.2.1 Typical applications for vector control....................................................................................... 112
5.7.2.2 Commissioning vector control................................................................................................... 113
5.7.2.3 Torque control ........................................................................................................................... 114
5.7.2.4 Using a speed encoder ............................................................................................................. 115
5.8
Motor and inverter protection .................................................................................................... 118
Overcurrent protection .............................................................................................................. 120
Limiting the maximum DC link voltage...................................................................................... 121
Load torque monitoring ............................................................................................................. 122