Operating Instructions ACU
11.2.7 Peak current ........................................................................................................... 125
11.2.8 Reverse sense of rotation ......................................................................................... 125
11.3 Internal values ............................................................................................... 125
11.4 Speed Sensor 1 ............................................................................................... 126
11.4.1 Operation Mode Speed Sensor 1 ............................................................................... 126
11.4.2 Division Marks, Speed Sensor 1 ................................................................................ 128
11.4.3 Gear factor speed sensor 1 ...................................................................................... 128
11.4.4 Filter time constant, Speed Sensor 1 ......................................................................... 129
11.5 Sensor evaluation ........................................................................................... 130
12 System data ............................................................................................................... 131
12.1 Actual value system........................................................................................ 131
12.2 Volume Flow and Pressure ............................................................................. 131
13 Operating behavior .................................................................................................... 132
13.1 Starting behavior ............................................................................................ 132
13.1.1 Starting Behavior of Sensorless Control System ......................................................... 132
13.1.1.1 Starting current ............................................................................................... 133
13.1.1.2 Frequency Limit ............................................................................................... 134
13.1.1.3 Brake release time ........................................................................................... 134
13.1.2 Flux formation ......................................................................................................... 134
13.2 Stopping behavior .......................................................................................... 136
13.2.1 Switch-Off Threshold ............................................................................................... 138
13.2.2 Holding Time ........................................................................................................... 138
13.3 Direct current brake ....................................................................................... 138
13.4 Auto start ........................................................................................................ 139
13.5 Search run ...................................................................................................... 140
13.6 Positioning ...................................................................................................... 142
13.6.1 Reference Positioning .............................................................................................. 142
13.6.2 Axle Positioning ....................................................................................................... 145
14 Error behavior and warning behavior ........................................................................ 148
14.1 Overload Ixt ................................................................................................... 148
14.2 Temperature ................................................................................................... 148
14.3 Controller Status ............................................................................................ 149
14.4 IDC Compensation Limit ................................................................................ 149
14.5 Frequency Switch-off Limit ............................................................................ 150
14.6 Motor temperature ......................................................................................... 150
14.7 Phase failure ................................................................................................... 151
14.7.1 Settings for sizes 1 to 7 ........................................................................................... 151
14.8 Automatic acknowledgment of errors/faults ................................................. 151
15 Reference Values........................................................................................................ 152
15.1 Frequency Limits ............................................................................................ 152
15.2 Slip Frequency ................................................................................................ 152
15.3 Percentage Value Limits ................................................................................. 152
15.4 Frequency reference channel ......................................................................... 152