Analog Encoder Interface; Table 2-7: Analog Encoder Specifications - Aerotech Ensemble LAB Hardware Manual

Ensemble LAB Hardware Manual

2.3.1.2. Analog Encoder Interface

If the -MXU or -MXR option has been purchased, the primary encoder channel will accept an analog encoder
input signal. The multiplication (interpolation) factor is determined by the EncoderMultiplicationFactor axis
parameter.
Table 2-7: Analog Encoder Specifications
Specification
Input Frequency (max)
Input Amplitude
Interpolation Factor (software
selectable)
MXR Interpolation Latency
The encoder interface pin assignment is indicated in
The gain, offset, and phase balance of the analog Sine and Cosine encoder input signals are controlled by
the EncoderCosineGain, EncoderCosineOffset, EncoderPhase, EncoderSineGain, EncoderSineOffset axis
parameters. Encoder signals should be adjusted for optimum performance using the Feedback Tuning tab of
the Ensemble Digital Scope utility. It will automatically adjust the encoder parameters for optimum
performance. See the Ensemble Help File for more information.
0° 90° 180° 270°
SIN
SIN-N
0° 90° 180° 270°
COS
COS-N
0° 90° 180° 270°
MRK
MRK-N
Positive MOVE (Clockwise)
Figure 2-4:
www.aerotech.com
MXU
200 kHz
0.6 to 2.25 Vpk-Vpk
8,192
N/A
360° 450° 540° 630° 720° 810°
360° 450° 540° 630° 720° 810°
360° 450° 540° 630° 720° 810°
Analog Encoder Phasing Reference Diagram
Chapter 2
Installation and Configuration
0.6 to 2.25 Vpk-Vpk
~ 3.25 µsec (analog input to quadrature output)
Section 2.3.1.
LINEAR MOTOR
Forcer Wires
Magnet
Track
1V
pk-pk
ROTARY MOTOR
Motor Shaft
CW Rotation
(Positive Direction)
MXR
200 kHz
65,536
Positive MOVE
(Clockwise)
Forcer
Motor Mounting
Flange (Front View)
29