Laser beta lasermike LS8000-3 User Manual
Page 37
LaserSpeed 8000-3 Instruction Handbook
Interfacing with the LS8000-3
Part No. 93463 / Drawing No. 0921-01561
Page 37 of 221
Revision A (Sep 2007)
High Speed Pulse Output (Pins 3, 5, 7, 9)
This quadrature pulse output is a high-speed RS-422 drive output with an
output rate up to 5MHz. This pulse output uses an RS-422 transceiver to
generate its output signals, and so should be connected to an RS-422
transceiver on the receiving end. These pulse outputs can be connected to a
PLC high speed counter card for fine length resolution and high-speed velocity
measurement.
If you need to convert the differential RS-422 level pulse signals to TTL levels,
Beta LaserMike recommends that you use the following circuit:
The High Speed Pulse Output can be reconfigured to output several different
status outputs using the High Speed Pulse Output Configuration setting.
See the
Configuration Settings
section for details.
PHASE_A_TRUE
PHASE_A_FALSE
100
8 A
7 B
1
+5V
RO 2
DI 3
6 Z
Y
5
GND
4
MAX3462/MAX3467
or equivalent
PHASE_A_TTL
0.1uF
+5V
PHASE_B_TRUE
PHASE_B_FALSE
100
8 A
7 B
1
+5V
RO 2
DI 3
6 Z
Y
5
GND
4
MAX3462/MAX3467
or equivalent
PHASE_B_TTL
0.1uF
+5V