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.
| 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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