8. HIGH SPEED COUNTER MODULE CONNECTIONS B-61813E/03
The output data is set as listed in the table below, depending on the
counter values in Q to W above.
8.2.3 Pulse Interface
The following three types of pulses are entered in the high speed
A. Phase A/B pulses: The phase difference between
these detection pulses is 90°
B. +/- pulses: These detection pulses are separated
in the positive and negative directions.
Select either type of the detection pulse.
C. Marker signal: Used to preset data in the pulse counter.
(1) Phase A/B pulse interface
The phase A/B pulses are selected when the PSEL signal is open.
A. Interface IC
Use differential drivers (SN75113 or equivalent) at the
output ports of the pulse generator.
B. Maximum frequency
Tmin. =8µS (minimum period)
TDmin. =1.2µS (minimum time between edges)