Position Synchronized Output (Pso); Table 2-15: Pso Specifications; Table 2-16: Pso Output Pin Assignment Tb102 (A); Table 2-17: Pso Output Pin Assignment Tb102 (B) - Aerotech A3200 Hardware Manual

Installation and Configuration

2.4.2. Position Synchronized Output (PSO)

The PSO can be programmed to generate an output synchronized to the feedback position and is typically
used to fire a laser or sequence an external device. Trigger signals may be derived from a feedback channel
or a software trigger. The position synchronized output pulse is generated using high-speed hardware,
allowing minimal latency between the trigger condition and the output.
An RS-422 line receiver or opto-isolator is recommended, especially when using long cable lengths in noisy
environments or when high frequency pulse transmission is required. It is best to locate the line receiver or
opto-isolator close to the receiving electronics.
Table 2-15: PSO Specifications
Specification
Maximum Input Tracking Rate
Maximum Quadrature Encoder Output
Frequency
Maximum PSO Output (Fire) Frequency
Firing Latency
1.
Signals in excess of this rate will cause a loss of PSO accuracy.
2.
The optocoupler that you use on the output might have an effect on this rate.
Table 2-16: PSO Output Pin Assignment TB102 (A)
Pin # Label Description
2 LP Connect to laser power for sourcing mode
3 O1 Laser Output 1 / PSO Output
6 OC Connect to laser common for sinking mode
7 OC Connect to laser common for sinking mode
Table 2-17: PSO Output Pin Assignment TB102 (B)
Pin # Label Description
1 O1- Laser Output 1- / PSO Output
2 O1+ Laser Output 1+ / PSO Output
32
Single-Axis Tracking
(1)
Dual-Axis Tracking
-MXH Feedback
with Differential Laser Output
(2)
with Single-Ended Laser Output
Single-Axis Tracking
Dual-Axis Tracking
(1)
(1)
(1)
Chapter 2
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Value
16.6 MHz
8.33 MHz
25 MHz
5 MHz
12.5 MHz
160 nsec
220 nsec
In/Out/Bi
Input
Output
Input
Input
In/Out/Bi
Output
Output