Integrated Servo Motors
Integrated servomotors are constructed to include a BLDC motor, driver, encoder and associated electronics into a single compact package.
Benefits of Integrated Servo Motors:
- Simple installation- fewer components to connect
- Reduced part count- translates into longer MTBF
- Long service life- no brushes to replace
- Faster commissioning- less wiring means reduced development time
- Lower cost- you don't need to install a separate servo driver or controller in a control cabinet
Electromate sells two types of Integrated servomotors: Traditional Integrated AC Servo Motors from JVL Industri Elektronik and Hybrid Integrated Servo Motors (also known as closed loop stepper motors) from QuickSilver Controls Inc.
Integrated Servo Motors from JVL Industri Elektronik
JVL's MAC Motor Series of integrated servo motors (up to 4500W and 13.5kW peak) include the controller, PLC, encoder, power supply and bus system integrated into one compact unit. All industrial Ethernet connectivity protocols like Profinet, EtherCAT, Ethernet / IP, Modbus TCP, Powerlink, Sercos III etc. are available. Furthermore, traditional fieldbus networks like CANopen, DeviceNet, Profibus, Nano PLC, and RS232/RS485/USB are available as options. With the MAC Motor, you only pay for what you need, and get it at an astonishingly low price.
But the MAC motor offers more than that. You save lots of space in your cabinet, eliminate EMI/RFI noise from long motor cable runs and reduce downtime from the elimination of cables and component failures which are the cause most of machine break-downs. With almost no cabling and only 30% of the normal number of components, you can be sure that your failure rate will drop if you choose the MAC motor for your next motion control task. The MAC motor® series sets completely new standards for the performance and size of integrated servo controls.
So what about vibration and temperature? As with the other JVL integrated servo motors in the range of 50W-4500W, both the motor and its associated electronic components have been specifically selected to withstand the rigorous demands of industrial use.
Powering this motor is easy since it only requires connection of the main voltage of 3x400VAC through its M23 connectors. Control voltage for the encoder and microprocessor circuitry is 24VDC. In an emergency-stop situation where an approved relay has cut-off the main power, encoder position and other values are maintained by the control voltage. Furthermore highly effective switching technology is used to ensure low heat generation resulting in appreciable energy savings.
Integrated Programmable Servo Actuators from SMAC Moving Coil Actuators
SMAC manufactures precision programmable electric actuators based on moving coil technology. These actuators are unique in that force, position and speed are totally programmable. They are designed to perform at exceptionally high speeds or very low speeds and with sub-micron accuracy and repeatability. This makes them ideal for a wide range of positioning, measuring, inspection and pick and place applications, particularly where 100% verification is required.
SMAC Unique Features & Benefits:
- Fully programmable in Position, Acceleration, Velocity and Force
- Sub- micron resolution (5 µm t o 100nm)
- Low moving mass = high acceleration
- Direct drive = no backlash, excellent repeatability
- Force control = Soft - Land capability
- >250 million cycles MTBF = Long operating life
- < 55dB = Officially ‘Silent’ in operation
Integrated Hybrid Servo Motors from QuickSilver Controls
QuickSilver servo controllers convert traditional microstep motors into hybrid servo motors also known as closed loop stepper motors. What the industry commonly refers to as a "stepper motor" is, more accurately, a 2 phase, 100 pole, AC brushless motor. QuickSilver digital controllers use a four quadrant vector drive (similar to a variable frequency drive) to drive 2 phase AC motors just like traditional servo motors are driven. Since they use servo motor control rather than microstep control, their motors are more efficient (run cooler) and do not stall like traditional micro stepper motors. Additionally QuickSilver motors yield 2 to 4 times the continuous torque of comparably sized traditional servo motors due to their high pole count.
QuickSilver SilverMax Integrated Hybrid Servo Motors provide superior continuous torque at low speeds, transitioning to nearly constant power curves up to 4000 RPM and are very well suited to direct drive of lead screws and belt drives, typically eliminating the need for gearheads. Additionally, patented damping methods in their PVIA control system allows wide ranges of inertial mismatch without the need for notch filters or retuning. These load inertias may be as large as 100 times the motor inertia (100:1 inertia mismatch) while still providing smooth responsive positioning control. Traditional systems typically cannot exceed a 10:1 inertial mismatch.
CLICK HERE to read the complete White Paper on how QuickSilver provides servo control of a microstep motor and the resulting advantages.