Efficient, user-friendly drives from Eaton
07 December 2012
Eaton Corporation has introduced the PowerXL series of variable frequency drives with ratings up to 250kW. Modules enable the new drives to be quickly and simply incorporated into Eaton's SmartWire-DT connection and communication technology which completely eliminates the need for conventional control circuit wiring.
There are currently two models: The DC1 Compact and the DA1 Advanced Machinery Drive. The DC1 is the basic model covering ratings from 0.37 to 11kW, and was developed for applications where robust design, high availability and universal functionality are the main requirements. The high-performance DA1 series covers ratings from 0.75 to 250kW.
PowerXL drives also offer different open and closed-loop control methods. The DC1 offers V/f control, allowing motors to operate at 150 percent of their rated power for 60 seconds and at 175 percent for 2 seconds.
The DA1 models also offer the user the possibility of Sensorless Vector Control (SLV) as well closed-loop control with a rotary encoder (CLV). In SLV mode the DA1 can move from rest at 200% torque and without the use of an encoder. The DA1 series has PLC functionality and offers, in addition to a standard integrated PID controller, special control functions for cranes, lifts, winding machines and compressors.
Ease of use was a prime objective in the development of the drives facilitated by self-explanatory type codes, auto-tune functionality and convenient parameterisation (with only 14 standard parameters) simplify configuration and commissioning. As well as programming via the keys on the device or alternatively via a PC, the user can copy the parameter settings from one device to another quickly and simply using a Bluetooth PC stick with an RJ45 interface.
The PowerXL variable frequency drives come as standard with the Modbus RTU and CANopen fieldbus system. The user can connect other fieldbus systems such as Profibus, Profinet, DeviceNet, EthernetIP, EtherCat, Modbus TCP and BACnet easily via fieldbus modules.
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