Motors combine accuracy and power savings
A
Motion Drives and Controls product story
Edited by the Engineeringtalk editorial team
Oct 5, 2007
Control algorithms combine the accuracy, precision and power savings of traditional servomotors with the higher torque and lower cost of traditional stepper motors.
Motion Drives and Controls has released a range of intelligent servo drives combining the cost benefits of microstep motors and the dynamic performance of closed loop control.
The Quicksilver Controls range includes size 17, 23 and 34 NEMA frame microstep motors fitted with high-resolution encoders matched to servo drives with integrated motion controls.
The intelligent controller/drives are supplied as compact board-only designs, in enclosures with breakout boards or packaged to IP50 standards.
Distributed control versions with CAN or Ethernet are also available along with I/O modules, cables and accessories to form complete positioning solutions.
Quicksilver Controls has developed control algorithms that combine the accuracy, precision and power savings of traditional servomotors with the higher torque and lower cost of traditional stepper motors.
The drives offer the Advance PVIA servo loop feature for 100:1 inertia mismatch and oversized load capability.
The optional Anti-Hunt feature allows the motor to switch to open loop mode when at rest, removing any tendency for servo dither whist holding the load in place.
Typical servo drive specifications covers an 8kHz servo loop with output ratings from 3.5 amps/phase to 10 amps/phase with voltage and current input from 12-48V DC at 4.5A maximum.
The controller stage includes a generous complement of analogue and digital I/O with RS232 and RS485 communications interfaces for programming and for multi-drop control of several positioning axes.
Software controls include electronic gearing and cam profiling for position following and on-the-fly motion synchronisation.
An electronic brake/clutch software feature can also handle variable torque and wind/unwind applications.
Installation, programming and controller status are taken care of with the PC-based QuickControl serial port programming tool which also includes a communication data mode making PC, embedded controller or PLC interfacing straightforward.
Whilst the controller/drives will suit many size 17, 23 and 34 frame size microstep motors, a full range is available with torque ratings up to 2.5Nm, complete with 8000 to 16000 line count encoders and interfacing cables.
IP65-rated motor/encoders are also available.
To facilitate evaluation for OEM applications, a number of start-up kits are available which typically include a selected controller/driver with a QuickControl software CD, user manuals, communications and motor cables with optional I/O modules, breakout boards and clamp modules.
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