Copley Controls: Accelnet MACRO (AMP Series)

AC and DC Powered Digital Drives for Brushless Motors

Description

Accelnet MACRO is a high-performance, DC powered drive for torque and velocity control of brushless and brush motors via MACRO (Motion And Control Ring Optical). MACRO is a high bandwidth, nonproprietary fiber optic or wired field bus protocol for machine control networks which is based upon 100BASEFX (FDDI) and 100BASETX (Ethernet) hardware technologies. Connections to a MACRO ring are via SC-type fiber optic connectors. MACRO address selection is via two rotary switches for Master and Node addresses.

Drive commissioning is fast and simple using CME 2™ software operating under Windows® and communicating with Accelnet MACRO via RS-232.

Feedback from both incremental and absolute encoders is supported. A multi-mode encoder port functions as an input or output depending on the amplifier’s basic setup. As a input it takes feedback from a secondary encoder to create a dual-loop position control system or as a master encoder for driving a cam table. As an output, it buffers the digital encoder signals from the motor’s digital encoder and eliminate split cables that would be needed to send the signals to both amplifier and control system.

There are 10 high speed digital inputs and 1 digital input for a motor over-temperature switch. Input [IN1] is dedicated to the drive enable function while [IN2~10] are programmable.

Inputs [IN1~10] have 1 μs RC filters for high speed operation and accept inputs from +5~24 Vdc. Each of these inputs has a 10 kW resistor that is independently programmable to pull up to +5 Vdc, or to pull down to ground. The Motemp input [IN11] has a fixed 4.99 kW pull up resistor to +5 Vdc for compatibility with PTC sensing resistors.

Digital outputs [OUT1~3] are open-collector MOSFET types with 1 kW pull up resistors to +5 Vdc. An isolating diode in each enables operation with current-sourcing opto-isolated inputs of PLC’s by eliminating leakage currents back into the drive’s +5 Vdc supply when the outputs are off. [OUT4] is a high-speed CMOS output.

Drive power is transformer-isolated DC from regulated or unregulated power supplies. An HV_AUX input is provided for “keep-alive” operation permitting the drive power stage to be completely powered down without losing position information, or communications with the control system.

In addition to the MACRO interface, torque and velocity control is also supported via an analog input with a ±10 Vdc range.

Control Modes

Command Interface

Communications

Feedback

Incremental

Absolute

I/O

Dimensions: mm [in]

Model No.: AMP-055-18, AMP-090-09, AMP-090-18, AMP-090-36, AMP-180-09, AMP-180-18