Danfoss VLT AQUA High Power Operation Instructions Manual

Also see for vlt aqua: Instructions Design guide Instruction manual Operating instructions Design guide

Contents

• Terminal U/T1/96 connected to U-phase• Terminal V/T2/97 connected to V-phase• Terminal W/T3/98 connected to W-phaseThe direction of rotation can be changed by switching two phases in the motor cable or by changing the setting of par. 4-10Motor Speed Direction.Motor rotation check can be performed using par. 1-28Motor Rotation Check and following the steps shown in the display.F frame RequirementsF1/F3 requirements: Motor phase cable quantities must be 2, 4, 6, or 8 (multiples of 2, 1 cable is not allowed) to obtain equal amount of wires attachedto both inverter module terminals. The cables are required to be equal length within 10% between the inverter module terminals and the first commonpoint of a phase. The recommended common point is the motor terminals.F2/F4 requirements: Motor phase cable quantities must be 3, 6, 9, or 12 (multiples of 3, 2 cables are not allowed) to obtain equal amount of wiresattached to each inverter module terminal. The wires are required to be equal length within 10% between the inverter module terminals and the firstcommon point of a phase. The recommended common point is the motor terminals.Output junction box requirements: The length, minimum 2.5 meters, and quantity of cables must be equal from each inverter module to the commonterminal in the junction box.NB!If a retrofit applications requires unequal amount of wires per phase please consult the factory for requirements.3.6.8 Brake Cable Drives with factory installed Brake Chopper option(Only standard with letter B in position 18 of typecode).The connection cable to the brake resistor must be screened and the max. length from frequency converter to the DC bar is limited to 25 metres (82feet).Terminal No. Function81, 82 Brake resistor terminalsThe connection cable to the brake resistor must be screened. Connect the screen by means of cable clamps to the conductive back plate at the frequencyconverter and to the metal cabinet of the brake resistor.Size the brake cable cross-section to match the brake torque. See alsoBrake Instructions, MI.90.Fx.yy andMI.50.Sx.yy for further information regardingsafe installation.3 How to Install VLT AQUA High Power Operation Instructions62 MG.20.P3.02 - VLT® is a registered Danfoss trademark3