9
Operational Overview
Signal common connected to Drive Logic 0V (Sync Encoder Common 0V)
Pulse / :
Commands motion on the falling edge (active edge).
Direction:
Positive (+) motion when high (inactive) and Negative (-) motion when low
(active).
Pulse CW / :
Commands positive (+) motion on the falling edge (active edge) of a pulse.
Pulse CCW /:
Commands negative (-) motion on the falling edge (active edge) of a pulse.
A and B :
Encoder Quadrature signal interpretation. When B leads A Positive (+)
motion commands will be generated, When A leads B, negative (-) motion
commands will be generated.
Note
Actual motor rotation direction will depend on pulse ratio polarity and setting of the
Positive Direction bit.
Pulse/Direction Interpretation
In Pulse/Direction interpretation, pulses are received on the A channel and the direction is
received on the B channel. If the B is high, pulses received on the A are interpreted as positive
changes to the
Pulse Position Input
. If the B is low, pulses received on the A are interpreted
as negative changes to the
Pulse Position Input
.
Figure 4:
Pulse/Direction Signals, Differential Inputs
Pulse/Quadrature Interpretation
In Pulse/Quadrature interpretation, a full quadrature encoder signal is used as the command.
When B leads A encoder counts are received they are interpreted as positive changes to the
Pulse Position Input
. When A leads B encoder counts are received they are interpreted as
ECI-44 terminal
Command
Connector Pin #
Pulse-Direction
Signal
Pulse-Pulse
Signal
Pulse Quadrature
Signal
NC2
20
Pulse /
Pulse CW /
A
NC1
36
Direction
Pulse CCW /
B
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Содержание Control Techniques EN Series
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