Appendix D: Pco Connector; Description - Newport XPS-D Startup Manual

XPS-D Controller
8.0

Appendix D: PCO Connector

8.1

Description

This chapter briefly describes the PCO (Position Compare Output) feature of the XPS.
There are two versions of PCO for the XPS, namely Basic PCO and Extended PCO.
The Extended PCO differs from the Basic PCO in that error mapping can be used to
compensate position. Refer to each respective subsection below for a more detail
description of each PCO type.
Mating connector: LEMO FGG0B306CLAD52 (or 42).
Minimum pulse
width
Minimum pulse
frequency
Maximum pulse
frequency
Interpolation
Accuracy
Position Window
capability
PCO
NOTE
PCO
Pin # Function
1 +5 V (fused: max 63 mA)
2 Axis 1/5 PCO Pulse/QuadA
3 Axis 1/5 PCO Enable/QuadB
4 Axis 2/6 PCO Pulse/QuadA
5 Axis 2/6 PCO Enable/QuadB
6 GND
Figure 30: PCO (Position Compare Output) connector.
Time Spaced
Pulses Spaced Pulses
35 ns
0.05 Hz
20 MHz
(5 MHz for less
than 4096
–
5 ns
YES
Figure 31: Basic position compare output.
43
Start-Up Manual
Distance AquadB
35 ns
1.6 MHz
pulses)
x256 AquadB encoder: x4
AnalogInterpolated
encoder: x4, x256,
x4096
5 ns 5 ns
YES
EDH0395En1031 – 09/18
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