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Contents
MG.28.A8.22 - VLT is a registered Danfoss trademark
Software version ....................................................................................................... 3
High voltage warning ................................................................................................ 4
These rules concern your safety: .............................................................................. 4
Warnings against unintended start: .......................................................................... 4
........................................................................................................... 5
Mechanical dimensions ............................................................................................ 5
Mechanical installation .............................................................................................. 9
General information about electrical installation ...................................................... 10
EMC-correct electrical installation ........................................................................... 11
Grounding of shielded/armoured control cables ..................................................... 12
Diagram ................................................................................................................. 13
Electrical installation ............................................................................................... 14
Safety clamp .......................................................................................................... 16
Input fuses ............................................................................................................. 16
AC line connection ................................................................................................. 16
Motor connection ................................................................................................... 16
Direction of motor rotation ...................................................................................... 16
Motor thermal protection ........................................................................................ 16
Parallel connection of motors ................................................................................. 17
Motor cables .......................................................................................................... 17
Brake connection ................................................................................................... 17
Ground connection ................................................................................................ 17
Load sharing .......................................................................................................... 18
Tightening Torque, Power Terminals ....................................................................... 18
Calculation of brake resistance ............................................................................... 18
Access to control terminals .................................................................................... 18
Electrical installation, control circuitry ...................................................................... 18
Tightening torques, control cables .......................................................................... 20
Electrical installation, control terminals .................................................................... 20
Relay connection .................................................................................................... 20
VLT Software Dialog ............................................................................................... 21
Connection examples ............................................................................................. 22
Control unit ............................................................................................................ 24
Manual initialization ................................................................................................. 24
Programming the adjustable frequency drive .......................................................... 25
Display readout ...................................................................................................... 27
Hand / Auto mode operation .................................................................................. 27
Warnings/alarms .................................................................................................... 28
Special conditions .................................................................................................. 29
Temperature-related switching frequency ............................................................... 29
VLT 2800 start-up .................................................................................................. 29
.................................................................................................... 31
VLT® 2800 Series
............................................................................... 3
.............................................................................. 29
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