Nservo is a digital 2- or 4-axis (position and velocity) servo
controller, with up to 20 kHz sample time. It is compatible with
encoders or resolvers and provides a ±10 VDC three-phase
command to any amplifier. With 11 digital inputs, 8 digital outputs,
4 analog inputs, 2 analog outputs (in addition to the 8 analog
outputs that drive the amplifier), and expandable I/O, Nservo
will accommodate most system I/O requirements. As with the Ndrive
series, only a single 4-wire cable is needed to communicate with
the motion generator on the PC. Other features include limits,
E-Stop, brake, auxiliary feedback input, high-speed latching inputs,
and Ethernet.
Aerotech's Nservo complements the Automation 3200 system’s
network digital drives (Ndrive, NLdrive, NCdrive and Npaq), allowing
an industry standard analog transconductance amplifier (voltage
command, current output) to interface to Aerotech's digital drive
network. Connected via the IEEE-1394 (FireWire®) communication
bus, which provides deterministic behavior, autoidentification,
and easy software setup from the NMotion SMC software controller.
The standard Nservo (Nservo-DB) may be used to upgrade an existing
Aerotech system with analog servo amplifiers, such as Aerotech’s
BA amplifier series, to the Automation 3200. Aerotech’s
DR300/DR500/DR600/DR800 drive racks may also be upgraded via the
Nservo with the -OP option. The Nservo with -TB option may be
used to interface third party, non-Aerotech servo amplifiers to
the A3200 platform.
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Supports 2 (standard) or 4 closed-loop servo (position and
velocity) axes. |
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Each axis has three-phase ±10 volt outputs. Two outputs are
driven directly by DAC's and the third output will be a summation
of the first two outputs to provide third phase generation
for commutated motors. |
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Up to 5 channels of 32 MHz line driver quadrature encoder
inputs. |
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24-volt tolerant opto-isolated CW, CCW, home and drive fault
inputs per axis powered by either an internal 5V or external
power supply. |
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24-volt tolerant drive enable output per axis (open collector
transistor, single ended, polarity selectable). |
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11 digital inputs (8 optically isolated). |
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8 opto-isolated digital outputs (sinking and sourcing; 5-24V). |
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Four 16-bit analog inputs; 2 are differential with x1, x2.5,
x4, x10 input gains. |
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Two 16-bit analog outputs. |
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Opto-isolated PSO output (opto-coupled, open collector, differential). |
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All I/O connections via easily removable connectors. |
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Two FireWire® ports. |
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Dedicated Emergency Stop sense input standard. |
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Internal power supply. |
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Equivalent software functionality (less current loop support)
to the NDrive, NPaq, etc. |
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Software configurable for brush, brushless, and stepper motor
operation. |
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5 VDC, 500 mA user output power for encoder, limits, etc. |
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Fail safe brake control output (open collector). |
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Four auxiliary (U500/U600 compatible) open collector mode
outputs. |
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High-Speed position latching input. |
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48 bits of programmable I/O, user definable as input/output
by byte. |
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Expansion connector for a four-axis R/D feedback module. |
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Optional Ethernet port |
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Legacy OP500 connector support (4 axis standard) for DR500
interface, etc |
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