Danfoss VT2800 Series Design Manual page 2

Programming
All about VLT 2800
2
Connection examples ............................................................................................ 56
Use of internal PID-controller - closed loop process control .................................. 58
.................................................................................................... 60
Operation & Display ............................................................................................... 60
Setup configuration ................................................................................................ 60
Load and Motor ..................................................................................................... 68
DC Braking ............................................................................................................ 73
References & Limits ............................................................................................... 78
Handling of references ........................................................................................... 78
Reference function ................................................................................................. 82
Inputs and outputs ................................................................................................. 87
Special functions .................................................................................................... 97
PID functions ....................................................................................................... 100
Handling of feedback ........................................................................................... 101
Serial communication for VLT 2800 ..................................................................... 108
Control Word according to FC protocol ............................................................... 112
Status Word according to FC Profile .................................................................... 114
Control word according to Fieldbus Profile .......................................................... 115
Status word according to Profidri v e protocol ....................................................... 116
Serial communication ........................................................................................... 119
Technical functions .............................................................................................. 127
....................................................................................... 131
Special conditions ................................................................................................ 131
Galvanic Isolation (PELV) ...................................................................................... 131
Earth leakage current and RCD relays ................................................................. 131
Extreme operating conditions ............................................................................... 131
dU/dt on motor .................................................................................................... 132
Switching on the input ......................................................................................... 132
Acoustic noise ...................................................................................................... 132
Temperature-dependent switch frequency ........................................................... 133
Derating for air pressure ...................................................................................... 133
Derating for running at low speed ........................................................................ 133
Derating for long motor cables ............................................................................. 133
Derating for high switching frequency - VLT 2800 ................................................ 133
Vibration and shock ............................................................................................. 134
Air humidity .......................................................................................................... 134
UL Standard ........................................................................................................ 134
Efficiency .............................................................................................................. 134
Mains supply interference/harmonics ................................................................... 134
Power factor ........................................................................................................ 135
Generic EMC standards/product standards ......................................................... 136
EMC emission ...................................................................................................... 136
EMC Immunity ...................................................................................................... 138
Harmonic Current Emission .................................................................................. 139
Aggressi v e environments ...................................................................................... 139
Display readout .................................................................................................... 140
Warnings/alarm messages ................................................................................... 140
Warning words, extended status words and Alarmwords ................................... 145
General technical data ......................................................................................... 146
Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V .............................. 150
Technical data, mains supply 3 x 380 - 480 V ..................................................... 151
Available literature ................................................................................................. 152
®
VLT 2800 Series
MG.28.E9.02 - VLT is a registered Danfoss trademark