Define Instruments PRO-CTR200 Manual page 14

14
Pulse Train Direction
Signal A
Signal B
6.3 - Quad x4
In this mode, the angular/linear resolution of the x1 mode is increased by 4. Depend-
ing on the direction of rotation, the A signal leads or lags the B signal.
Pulse Train Direction
Signal A
Signal B
Pulse Train Direction
Signal A
Signal B
6.4 - A+B
In this mode there is no fi xed relationship between signals A and B.
Signal A
Signal B
Primary counter increments:

On a rising edge A signal
PRO-CTR-MAN-16V03 (0128)
Primary counter increments:
Counter-clockwise

Primary
Counter

With A and B
signals 90°
out-of-phase
Primary counter decrements:
Clockwise

Primary
Counter


With A and B
signals 90°

out-of-phase
Primary counter increments:
Counter-clockwise

Primary
Counter


With A and B
signals 90°

out-of-phase
Primary
Counter
On a rising edge A signal when B is high
On a falling edge A signal when B is low
On a rising edge A signal when B is low
On a rising edge B signal when A is high
On a falling edge A signal when B is high
On a falling edge B signal when A is low
On a rising edge A signal when B is high
On a rising edge B signal when A is low
On a falling edge A signal when B is low
On a falling edge B signal when A is high
Signal A
Signal B

On a rising edge B signal
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Example: Shaft Encoder
Primary
Counter