Output power range of 10 or 20 A peak with ±10 to ±80 VDC bus2- or 3-phase AC line input or DC input CE approval Linear power stages Digital current, velocity, and position loops for improved motion stability Optional integrated encoder multiplier for higher throughput and reduced wiring Flexible design provides ability to drive brushless and DC brush-type servomotors as well as stepping motors Encoder or resolver feedback The Ndrive® family of digital servo amplifiers are high performance discrete drives used with the Automation 3200 motion controller. These drives are capable of controlling brushless, DC brush, and stepper motors over a wide range of operating voltages and currents. Based on a common architecture, Ndrive amplifiers perform both current- and position-loop closures digitally.
The use of high-performance double-precision processors allows these drives to generate ultra-smooth motion profiles. Servo system response is optimized with the use of up to eight second-order loop-shaping filters, precise time-aligned feed-forward, and other proprietary techniques with
loop closure rates up to 20 kHz.
The Ndrive family includes several versions of low-noise, ultra-high-performance linear drives. The Ndrive series provides high bandwidth and superb linearity required for the ultimate in velocity regulation as well as positional stability. The HLe offers the ability to use resolver or inductosyn sensors and provides the highest level of encoder interpolation. The Ndrive CL is available for applications requiring low noise and is optimized for cost-sensitive, lower-power applications. For low-power, high-precision systems, use the Ndrive ML.
Options for the Ndrive family include integral encoder interpolation, one- to three-axis position synchronized output (PSO), automatic brake control, digital and analog I/O expansion, absolute encoder interface, and one- or two-channel resolver interfaces. An optional dedicated Ethernet port is available on the HLe drives for connection to third-party I/O expansion devices. This provides the potential to connect to a large number of I/O points typically required for PLC-type applications. Any combination of Ndrive amplifiers may be connected to the Automation 3200 FireWire® network, allowing the system to be customized as needed.
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