Educational solutions - Schneider Electric

Hoisting system for Altivar 71Teaching objectives@ To study the behaviour of a hoistingsystem controlled by a variable speed drive@ To set up and control the system@ To demonstrate drive performance@ To study the mechanics of the startingand braking phasesElectrical andmechanical data@ Power supply:400 V three-phase@ Size (H x W x D) - weight:_ 2400 x 1400 x 1400 mm_ 150 kg + 140 kg loadsMain industry@ Electrical engineeringPackage descriptionThe product is adapted from a hoisting system manufactured by “LedentMachines Equipements”.The winch hoisting system evaluates the behaviour of an asynchronous motorwhen hoisting a suspended load of between 0 and 150 kg.It is designed for studying a hoisting solution controlled by a variable speeddrive with fl ux vector control. The maximum speed of movement is 30 m/mm.The system can be equipped with one of the two following options:Load sensor optionMeasures the overload or bounce forces using sensors mounted on the articulatedsupport frame of the motorised winch unit.The load measurement data can also be used by the drive to calculate thenecessary motor torque (for lift and docking applications).DOL starting optionCompares DOL starting with a variable speed drive solution.For safety reasons, the load sensors are replaced by dampers.A third, pulley system option allows the hoisting measurement time to be extendedfor clearer analysis of the system’s position control performance.The system may be connected to an external PLC.Characteristics of the operational part:@ crane chassis - overall height 2.4 m@ a 1.4 x 1.4 m ballast tray@ an articulated motor support frame@ a 1.5 kW 1500 rpm, 400 V three-phase brake speed reducer equipped withforce-ventilated 1024 point encoder with PTC probes@ a reversible winch drum@ a 150 kg capacity cable with safety hook@ an upper and lower limit switch system@ an incremental 100-point encoder to control the speed and positioningof the load@ an automatic damper basket with a capacity of 7 dumbbells of 20 kg@ a Makrolon protective cubicle with electrical safety catch.Characteristics of the control part:The enclosure comprises:@ a lateral operation and measurement panel (internal, load)@ a white/green signalling beacon@ the electro-mechanical components of the safety loop@ an Altivar 71 - 1.5 kW variable speed drive and its braking resistor@ a key-operated lower limit switch shunt, inside the enclosure@ a key-operated enclosure opening contact@ a key-operated release contact@ a slot for the local control option (excluding weighing)@ a torque load measurement display@ a manual raise/lower control@ a speed reference.This equipment is designed and manufactured in compliance with hoistingstandards and directivesTo orderMD1AA400P15: 1.5 kW hoisting systemMD1AA409CC: hoisting system with load sensor optionMD1AA409DD: hoisting system with DOL starting optionMD1AA409MF: hoisting system with pulley system optionOptions are to be specifi ed at the time of orderEducational solutions catalogue 2010-201133