2.5.2. Position Synchronized Output (PSO)
The PSO signal is available on the dual-function AUX Marker/PSO signal lines. Use the PSO pulse external
sync functions to configure the auxiliary marker as an output. Refer to the Help file for more
information.
Use the PsoOutputConfigureOutput() function to transmit the PSO output signal on the Marker ± pins
differentially. Or, use the PsoOutputConfigureOutput() function to configure the Marker - pin as a
5V TTL PSO output.
The differential signal format is recommended when using long cable lengths in noisy environments or
when high frequency pulse transmission is required. It is best to locate the line receiver close to the
receiving electronics. A 5 V TTL signal is used to drive an opto coupler or general purpose TTL input. This
signal is active high and is driven to 5 V when a PSO fire event occurs. When the drive is reset or after
initial power up, the PSO pins (refer to
), are not actively driven and the fail safe state is
defined by pull-up and pull-down resistors as shown in
The -EB1 I/O option board has additional PSO signal formats. Refer to
for more information.
Table 2-37:
PSO Specifications
Specification
Value
Output
TTL
5 V, 16 mA (max)
Maximum PSO Output (Fire) Frequency
TTL
12.5 MHz
RS-422
12.5 MHz
Output Latency
[Fire event to output change]
TTL
15 ns
RS-422
15 ns
Table 2-38:
PSO Pins on the Auxiliary I/O Connector
Pin#
Description
In/Out/Bi
19
Auxiliary Marker- / PSO output / TTL Output
Bidirectional
20
Auxiliary / PSO output
Bidirectional
21
Common
N/A
2.5. Auxiliary I/O Connector
XL5e Hardware Manual
62
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Summary of Contents for Automation1 XL5e
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Page 63: ...Figure 2 32 PSO Interface XL5e Hardware Manual 2 5 Auxiliary I O Connector www aerotech com 63...
