Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: JVL Industri Elektronik | Subject: AMC20, 21 and 22
Edited by the Engineeringtalk Editorial
Team on 07 October 2003
Flexible control for servos up to 3kW
A new family of servo controllers combines a 16bit microprocessor with a 32bit signal processor to provide great flexibility in application and control facilities for AC motors up to 3kW.
JVL s new AC servo controllers provide many facilities, including very high resolution electronic gearing, built-in sequential program execution, 64 registers, 11 inputs and eight outputs The controllers use Flash memory for easy upgrades and are CE approved
Programming is easy and very straightforward using a PC and JVL s programming software, MotoWare.
In addition motor operation can be monitored graphically, thus greatly aiding control and troubleshooting.
JVL's product range now includes a completely new series of programmable AC servo controllers - the AMC20, 21 and 22.
These controllers can be used to control AC motors up to 3kW.
They are based on a 16bit microprocessor and 32bit signal processor and are characterised by great flexibility in application and control facilities.
They can be controlled directly via the built-in RS232 interface, or indirectly via six digital inputs.
In addition, the controllers can be supplied with a built-in Profibus.
The controllers can be directly connected to PLCs with axis boards.
Up to 255 units can be connected to the same RS232 bus, thus enabling a PC or PLC to function as controller in a multi-axis system.
Using JVL s programming software, MotoWare, motor power, velocity, torque etc can be monitored graphically and comparisons made with previously recorded curves.
This facility greatly assists control and troubleshooting.
The controller's six digital inputs refer to 64 user-defined position and velocity references which are stored in registers via the built-in RS232 interface or a Profibus interface (under development).
The AMC controllers can also be velocity controlled by an analogue input of +/-10V.
In addition they can be controlled as a step motor system with step-pulse and direction signals.
A special mode of operation provides electronic gearing at any selectable keyed-in ratio (from 0.001 to 9999.999) with a resolution of 1 to 1000.
In the standard model, the programmed values are executed by external signals, while an extended model enables the controller itself to perform sequential program execution.
Eight general-purpose outputs can be configured for example to provide a ready signal when the motor has reached the desired position, or to give an error signal if a condition arises that prevents motor operation.
These servo controllers are very easily programmed.
For example, various velocity profiles can be set by defining acceleration, deceleration (linear or s-curve) and velocity.
The controllers also have built-in, programmable end-of-travel stops and a zero-point seek function.
For connecting a feedback sensor to the digital feedback loop, the controllers accept either a balanced or unbalanced signal, eg from a standard two-channel incremental encoder.
The controllers are prepared for master/slave interpolation control in two axes.
A new feature in these controllers is the use of Flash memory, which enables the firmware to be changed if required.
All inputs and outputs are galvanically isolated and voltage-overload protected to give high immunity to spurious noise signals.
Similarly the controllers are also protected against thermal overloads and short circuits.
The controllers have been designed and constructed to fulfil EMC requirements and are CE approved.
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