Ac Frequency Drive By Asd Engineering

We have been marked down as a noted supplier of superior quality Ac Frequency Drive. Alternate current drives are used to control the speed of motors and are demanded in large scale at different industries. Our offered drives are best known for capability of handling power, which provides them an unexceptional performing quality. Ac Frequency Drive is commonly preferred in market over other ordinary brands and available for the clients in different specifications, as per the clients' requirements. Features: Upfront speed control potentiometer Auto tuning of the PI controllers Identify low-efficiency components Further details: VLT HVAC Drive Features and benefits Range200-240 V ..... 1.1 kW - 45 kW380-480 V ..... 1.1 kW-1000kW525-600 V ..... 1.1 kW - 90 kW525-690 V ..... 45 kW - 1,4 MW EnclosuresIP20/chassis, IP21/NEMA 1,IP55/NEMA 12 and IP66/NEMA 4X Dedicated HVAC features Auto tuning of the PI controllersWith auto tuning of the PI controllers, the drive monitors how the system reacts on corrections made by the drive - and learns from it, so that precise and stable operation is achie ved quickly. Automatic Energy OptimizationThe standard feature AEO provides optimized motor magnetization at all speeds and loads. This increases energy efficiency by 5-15% for partial loads. Energy monitoringThe VLT HVAC Drive provides a complete range of energy consumption information, which helps identify low-efficiency components in the HVAC system. Automated Resonance MonitoringThe drive can easily be set to avoid frequency bands at which connected fans create resonances in the ventilation system. This reduces installation time and system wear. Fan Belt MonitoringFrom the relation between current and speed, the VLT HVAC Drive is able to reliably recognize a broken belt. Fire Override ModeIn Fire Override Mode, the VLT HVAC Drive will not react to control signals, warnings or alarms. It will continue reliable operation as long as possible and run until it is eventually destroyed itself to ensure that fire escapes remain free of smoke Set point in temperature The VLT HVAC Drive calculates the actual room temperature from the pressure in the cooling media and refines compressor operation accordingly without the need for additional software, sensors or controllers. This feature allows less expensive pressure sensors to be used. Pipe Fill ModeEnables controlled (closed loop) filling of pipes. Prevents water hammering, bursting water pipes or blowing off sprinkler heads. End of Pump Curve detects breaks and leakageThe feature detects breaks and leakage. End of curve triggers an alarm, shuts off the pump, or performs another userdefined action. Dry Pump Protection lowers maintenance costs The VLT HVAC Drive constantly evaluates the condition of the pump, based on internal frequency/power measurements. Standard cascade controllerThe in-built cascade controller controls up to three pumps with fixed lead pump. Motor AlternationThis built-in logic controls alternation between two pumps in duty/stand-by applications. Motion of the stand-by pump prevents sticking of the pump. An internal timer assures equal usage of the pumps. Flow compensationThe flow compensation feature reduces the pressure set point according to the flow - which saves energy. Initial/Final RampThe initial ramp provides fast acceleration of pumps to minimum speed, from where the normal ramp takes over. This prevents damage on thrust and bearings. Sensorless Pressure or Flow Control SafetyThe VLT HVAC Drive can optionally be delivered with the safe stop functionality suitable for category 3 installations according to EN 954-1. This feature prevents the drive from starting unintended Accessories A wide selection of accessories is available for the VLT HVAC Drive to suit your needs. For further details see the Operation Instructions. OptionsOptions for bus communication, user programs, etc., are delivered ready for plug and play. Display optionsLocal Control Panel LCP (graphical and numerical)Cable for LCP, 3 m [9.8 ft] Remote-mounting kit for Local Control Panel (LCP) Application optionsExternal 24 V supply card Serial Communication OptionsProfibus Option Card (MCA-101)DeviceNet Option Card (MCA-104)BALnet (MCA-109)Lonworks (MCA-108) I/O optionsGeneral Purpose I/O (MCB 101) Relay Option (MCB 105).External 24VDC supply option (MCB-107). Analogue I/O w. real time clock backup (MCB-109). Filters Harmonic Filter (AHF 005/010 MCE) Sine-Wave Filters (MCC 101) dU/dt filter (MCC 102) Other accessoriesIP21/NEMA1 KitUSB connection cable to PCHarmonic Filter cable to PC