The Ndrive family of digital servo amplifiers are the high performance
discrete drive options for the Automation 3200 motion system.
Capable of driving brushless and DC brush-type servomotors, and
stepper motors, the Ndrive amplifiers perform both current loop
and servo loop closure to ensure the highest level of positioning
performance and rate stability.
Ndrives are built using high performance DSPs, allowing them to
perform complex calculations in real time. This processing capability
allows Ndrives to sample the digital current loop and servo loop
at a rate of 20 kHz. Ndrive amplifiers also handle both digital
and analog I/O, laser firing, and encoder multiplication.
In order to provide the capability for increased I/O counts for
PLC-type applications, the Ndrive HP and Ndrive HL have an optional
dedicated Ethernet port to communicate with I/O modules from third-party
vendors.
Standard options for the Ndrive include on-board encoder multiplication,
three-axis position synchronized output (PSO), brake relay, additional
I/O, absolute encoder interface, and separate logic supply inputs
for “keep-alive” operation. The Ndrive HP, Ndrive
HL, Ndrive CP, and Ndrive CL accept AC input power while the Ndrive
MP accepts DC power input.
The Ndrive HL, a linear power amplifier, is available for low
noise and ultra-high performance applications. This amplifier
is ideal for high bandwidth requirements and maintains superb
linearity with zero crossover distortion.
Also included in the Ndrive family is the Ndrive CP, a high performance
PWM amplifier for cost-sensitive applications, and the Ndrive
CL, which is a high performance linear amplifier for cost-sensitive
applications. The Ndrive CP and CL maintain the same level of
sophisticated control architecture while eliminating support for
optional features.
The Ndrive MP is the smallest amplifier in the Ndrive family.
With an overall package measuring under two inches wide and six
inches in height, the Ndrive MP is ideal for applications with
ultra-compact space requirements.
Any combination of Ndrive amplifiers can be used together on the
FireWire® network to allow the system to be customized as
needed.
| PC Interface |
FireWireŽ |
FireWireŽ |
FireWireŽ |
FireWireŽ |
FireWireŽ |
| Current Output,
Peak |
10-150
A |
10-20
A |
10-30
A |
10
A |
10
A |
| Current Output,
Continuous |
5-50
A |
5-10
A |
5-15
A |
5
A |
5
A |
| Bus Voltage |
10-320
V |
40-80
V |
10-320
V |
40
V |
10-80
V |
| Amplifier
Type |
PWM |
Linear |
PWM |
Linear |
PWM |
| Input Type |
2
or 3 Phase AC |
2
Phase AC |
2
Phase AC |
2
Phase AC |
DC |
| Motor Style |
Brush,
Brushless, Stepper |
Brush,
Brushless, Stepper |
Brush,
Brushless, Stepper |
Brush,
Brushless, Stepper |
Brush,
Brushless, Stepper |
| Base I/O |
4-DO/6-DI
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 |
| Additional
I/O (Additional to Base I/O) |
8-DO/8-DI
1-AO/1-AI |
8-DO/8-DI
1-AO/1-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 |
Yes |
Yes |
Yes |
Yes |
Yes |
| Brake Input
Capable |
Yes |
Yes |
Yes |
Yes |
Yes |
| Single Axis
PSO(1) |
Yes |
Yes |
Yes |
Yes |
Yes |
| Dual Axis
PSO(1) |
Yes |
Yes |
No |
No |
No |
| Triple Axis
PSO(1) |
Yes |
Yes |
No |
No |
No |
| Ethernet Capable
for Third-Party I/O |
Yes |
Yes |
No |
No |
No |
| Auxiliary
Keep Alive |
Yes |
Yes |
Yes |
Yes |
Yes |
Notes:
1. PSO not available on Ndrive CP/MP when using integral MXU
|