Product category:
Stepper and Servo Drives, Motors, Controls
News Release from: JVL Industri Elektronik | Subject: MAC servomotors
Edited by the Engineeringtalk Editorial
Team on 18 May 2004
Integrated servomotors power up to 750W
Two new high-capacity MAC servomotors come with ratings of 400 and 750W.
Two new high-capacity MAC servomotors come with ratings of 400 and 750W These new products were first revealed at the Danish Herning Tech trade fair this year
This article was originally published on Engineeringtalk on 13 Aug 2003 at 8.00am (UK)
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AC servomotor reaches new levels of intelligence
Described as a completely new concept in motor control, the MAC motor is an AC servomotor and controller combined in a single unit, offering previously unseen low pricing for the OEM market.
Servomotor is sealed to IP67
JVL Industri Elektronik has released an IP67 version of its integrated AC servomotor.
The MAC motor consists of a complete servo system, including a high-dynamic AC servomotor, Hall-effect sensor, encoder, power supply, driver and positioning controller, as well as facilities for incorporating various modules such as Profibus, CAN, Nano PLC etc.
The MAC motor is claimed to set new standards for the performance and appearance of servo controls.
With a length of only 175mm for a 2.4Nm/750W motor, the MAC motor matches the size of traditional servomotors that have no built-in driver/controller.
This has only been possible through the use of an extremely compact motor and the development of electronics and mechanics that use the latest technologies and manufacturing methods.
At no point has quality been compromised and the motor and electronic components have been specifically selected to withstand the rigorous demands on quality and lifetime required by industrial use.
Further reading
Servomotor gains control options
JVL Industri Elektronik has developed optional Profibus-DP and NanoPLC modules for its integrated AC servomotor.
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.
Stepper controller tackles demanding applications
The SMC35 is JVL's new stepper motor controller, offering high torque, high velocity and high resolution to solve the most demanding applications.
This method of construction is unique, because specifiers only buy what they require for a specific application and thus gain specific functionality at an extremely low price.
Space is saved in the control cabinet, noise induced through the use of long motor cables is avoided, and errors due to cabling and components are reduced considerably.
With significantly reduced cabling and 30% of the normal number of components, designers can be sure of reducing the number of errors and save on installation costs.
In addition, service is much simpler, as the motor and controller can replaced as a single integrated unit.
The basic motor offers the following standard features: operating commands from PC/PLC via RS232/422/485; pulse/direction or quadrature inputs for electronic gearing; A+B encoder output; velocity and torque control, either controlled digitally or via +/-12bit, +/-10V inputs; positioning via digital interface; software-controlled end-of-travel stops; selection of acceleration, maximum velocity, torque etc; 6th-order servo filter; sine commutation with 2000 pulse/rev encoder; alarm and "in position" outputs; three inputs and three outputs for high speed start/stop and capture applications; and internal power dump.
Via the use of expansion modules, the following additional features are offered: a Profibus DP module, enables connection to 12Mbit Profibus; a CANbus/CANOpen module features six inputs and two outputs for sensors and PLCs; a nano PLC contains a single controller that can position on the basis of eight optically isolated inputs (and can accomplish 80% of positioning applications); a high-speed serial RS485 interface enables multi-axis operation so that robotic movements and advanced x-y-z operation is possible at high speed; expansion modules are available for IP42 (sub-D) or IP67 (screw or M12 connector); and other modules are under development, eg for DeviceNet and Ethernet, and USB modules both as Bluetooth and WLAN modules for wireless data transmission.
JVL can also supply customised modules that enable these motors to be adapted to almost any task.
Anyone using the MAC motor will be positively surprised how well the 6th-order filter developed by JVL handles nonlinear and undamped systems.
The controller operates 100% digitally, and motor is easy using the supplied Windows software MacTalk.
Internet upgrades are an integrated part of the MAC concept.
If an update of MacTalk or the motor's firmware is required, the user simply selects "update MacTalk" or "update firmware" and MacTalk will automatically download the latest version from JVL's Internet server.
Powering the MAC motors is simple and only requires connection of a mains voltage of either 115 or 230V AC.
To ensure correct and effective emergency-stop procedures, the encoder and microprocessor circuitry must be powered using 24V DC.
Switching technology is used to ensure large energy savings and thus reduction of heat generation when the voltage is regulated to the internal control circuits.
A common feature of JVL's regulators is that the user need only adjust a single parameter.
This parameter is called the "load factor", as it only depends on the inertia of the system.
The greater the load on the motor, the greater is the load factor.
Expert users can continue to fine-tune very complex, undamped systems using the MacTalk software to select the "filter selector" window and change the speed response and hardness.
In addition, it is possible to optimise compensation for follow errors.
Using MacTalk it is also possible to display graphs that show torque, velocity and position errors as a function of time.
These features are especially useful when a system is being commissioned and the servomotor is being tuned.
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