VLT ® 2900 Series Contents Quick Setup 3 General warning 3 Mechanical Installation 3 Electrical Installation, power 3 Electrical Installation, control cables 3 Programming 3 Motor start 4 Safety regulations 4 Warning against unintended start 4 Introduction to VLT 2900 5 Software version 5 High voltage warning 7 These rules concern your safety 7 Warning against unintended start 7 Control unit 8 Manual initialisation 8 Hand Auto 9 Automatic motor tuning 10 Programming 11 Operation & Display 11 Load and Motor 19 References & Limits 29 Inputs and outputs 36 Special functions 45 Installation 57 Mechanical dimensions 57 Mechanical installation 59 General information about electrical installation 60 Electrical installation 61 Pre-fuses 63 Mains connection 63 Motor connection 63 Direction of motor rotation 64 Parallel connection of motors 64 Earth connection 64 Tightening Torque, Power Terminals 66 Control of mechanical brake 66 Access to control terminals 66 Electrical installation, control cables 67 Tightening torques, control cables 68 Electrical installation, controlterminals 68 Relay connection 68 VLT Software Dialog 68 Connection examples 69 MG.29.A3.02 - VLT ® is a registered Danfoss trademark 1