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KFU 2-/4-
6
10.2
Volume Flow and Pressure ............................................................................................ 111
11
Operational Behavior ................................................................................................................. 112
11.1
Starting Behavior............................................................................................................. 112
11.1.1
Starting Behavior of Sensorless Control System........................................................... 112
11.1.1.1
Starting Current ...................................................................................................... 114
11.1.1.2
Frequency Limit ...................................................................................................... 114
11.1.1.3
Brake release time.................................................................................................. 114
11.1.2
Flux Formation............................................................................................................... 115
11.2
Stopping Behavior........................................................................................................... 116
11.2.1
Switch-Off Threshold ..................................................................................................... 118
11.2.2
Holding Time.................................................................................................................. 118
11.3
Direct current brake ........................................................................................................ 118
11.4
Auto Start ......................................................................................................................... 119
11.5
Search Run....................................................................................................................... 120
11.6
Positioning ....................................................................................................................... 121
11.6.1
Reference Positioning.................................................................................................... 122
11.6.2
Axle Positioning ............................................................................................................. 125
12
Error and warning behavior ...................................................................................................... 128
12.1
Overload Ixt...................................................................................................................... 128
12.2
Temperature..................................................................................................................... 128
12.3
Controller status.............................................................................................................. 129
12.4
IDC Compensation Limit................................................................................................. 129
12.5
Frequency Switch-Off Limit............................................................................................ 130
12.6
Motor Temperature.......................................................................................................... 130
12.7
Phase Failure ................................................................................................................... 131
12.8
Automatic Error Acknowledgment ................................................................................ 132
13
Reference Values ....................................................................................................................... 133
13.1
Frequency Limits............................................................................................................. 133
13.2
Slip Frequency................................................................................................................. 133
13.3
Percentage Value Limits................................................................................................. 133
13.4
Frequency reference channel ........................................................................................ 134
13.4.1
Block diagram ................................................................................................................ 135
13.5
Reference percentage channel ...................................................................................... 137
13.5.1
Block diagram ................................................................................................................ 137
13.6
Fixed reference values.................................................................................................... 139
13.6.1
Fixed Frequencies ......................................................................................................... 139
13.6.2
JOG frequency............................................................................................................... 140
13.6.3
Fixed Percentages......................................................................................................... 140
13.7
Frequency ramps............................................................................................................. 141
13.8
Percentage Value Ramps ............................................................................................... 144
13.9
Block Frequencies .......................................................................................................... 144
13.10
Motor Potentiometer ....................................................................................................... 145
13.10.1
Motorpoti (MP) ........................................................................................................... 146
13.10.2
Motorpoti (KP) ............................................................................................................ 146
13.10.3
Controlling the Motor via the Control Unit .................................................................. 147
13.11
PWM-/repetition frequency input ................................................................................... 148