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Home >> Amplifiers >> Digital Servo Amplifiers

   
Ndrive Series
Description
   

Wide output power range from 10 A peak to 150 A peak at 320 VDC

2- or 3-phase AC line input or DC input

CE approval

PWM and 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 is offered in a number of highly efficient PWM versions. The Ndrive MP is a low power, small footprint PWM drive ideal for space-sensitive applications. The Ndrive CP is a medium-power PWM drive capable of running directly from AC mains voltage and is optimized for cost-sensitive applications. The Ndrive HPe is the highest performance PWM drive providing a host of features not available on the other PWM drives, and is available in output current ranges from 10 A to 150 A peak.

The Ndrive family also includes several versions of low noise, ultra-high-performance linear drives. The Ndrive HLe provides high bandwidth and superb linearity required for the ultimate in velocity regulation as well as positional stability. It also offers the ability to use resolver or inductosyn sensors and provides the highest level of encoder interpolation. The Ndrive CL is also available for applications requiring low noise and is optimized for cost sensitive, lower-power applications.

Options for the Ndrive family include integral encoder interpolation, one- to three-axis position synchronized output (PSO), automatic brake control, digital and analog IO expansion, absolute encoder interface, and one- or two-channel resolver interfaces. An optional dedicated ethernet port is available on the HPe and HLe drives for connection to third-party IO expansion devices. This provides the potential to connect to a large number of IO 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.



Ndrive Comparison Chart

Ndrive HPe

Ndrive HLe

Ndrive CP

Ndrive CL

Ndrive MP

PC Interface FireWire® FireWire® FireWire® FireWire® FireWire®
Current Output, Peak(1) 10-150 A 10-20 A 10-30 A 10 A(2) 10 A
Current Output, Continuous(1) 5-75 A 5-10 A(2) 5-10 A 5 A(2) 5 A
Bus Voltage 10-320 VDC 40-80 VDC(2) 10-320 VDC 40 VDC(2) 10-80 VDC
Amplifier Type PWM Linear PWM Linear PWM
Motor Supply Voltage 2 or 3 Phase AC 2 Phase AC 2 Phase AC 2 Phase AC(3) DC
Motor Style Brush, Brushless, Stepper Brush, Brushless, Stepper Brush, Brushless, Stepper Brush, Brushless, Stepper Brush, Brushless, Stepper
Standard I/O(4) 4-DO/6-DI(4)
1-AO/1-AI
4-DO/6-DI
1-AO/1-AI
4-DO/6-DI
1-AO/1-AI
4-DO/6-DI
1-AO/1-AI
1-AI
Expansion I/O(4) (Additional to Base I/O) 16-DO/16-DI
3-AO/3-AI
16-DO/16-DI
3-AO/3-AI
16-DO/16-DI
1-AO/1-AI
16-DO/16-DI
1-AO/1-AI
8-DO/8-DI
1-AO/1-AI
ESTOP Input (Emergency Stop Sense Input) Yes Yes Yes Yes Yes
Automatic Brake Control Yes Yes Yes Yes Yes
Single Axis PSO(5) Yes Yes Yes Yes Yes
Dual Axis PSO(5) Yes Yes No No No
Triple Axis PSO(5) Yes Yes No No No
Ethernet Capable for Third-Party I/O Yes Yes No No No
Control Supply(6) AC AC AC AC DC

Notes:
1. Peak value of the sine wave; rms current for AC motors is 0.707 * Apk.
2. Load dependent.
3. External transformer required.
4. DO = Digital Output; DI = Digital Input; AO = Analog Output; AI = Analog Input.
5. PSO not available on Ndrive CP/MP when using integral MXU.
6. ""Keep Alive"" supply.



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Aerotech is a motion controller and motion control systems manufacturer.