IAI America ACON-PO - Manual (Page 47)

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4. Operation Using I/O Signals
„ Command Pulse Input
Command pulses can be input in the open collector mode (60 kpps max.) or differential line driver mode (200 kpps
max.).
You can select a desired input pattern of command pulses from 90
q phase-difference (phase-A/B x4) signal, pulse
train + forward/reverse signal, and forward pulse/reverse pulse. The positive logic or negative logic can be selected
for each of these patterns.
Caution: z The actuator moves in the negative direction (the motor runs in the forward direction) when
forward pulses are input, and moves in the positive direction (the motor runs in the reverse
direction) when reverse pulses are input. (These directions are reversed if the actuator is of motor
reversing type.)
z When determining the forward/reverse directions, pay attention to the host controller setting as
well as the PP•/PP and NP•/NP connection.
z For actuator accelerations/decelerations, set values not exceeding the rated
acceleration/deceleration of the actuator. (The rated acceleration/deceleration of each actuator is
specified in the actuator’s catalog.)
* The motor direction is determined based on CCW representing the forward direction when viewed
from the load-end of the shaft.
z You can set one of six command pulse patterns in the command-pulse input mode.
Command pulses indicate motor revolutions, while the sign of the command indicates the rotating direction.
Forward pulse train
Reverse pulse train
Pulse train
Sign
Phase-A/B
pulse train
Command-pulse
input pattern
Input
terminal
Negative logic
Positive logic
Forward pulse train
Reverse pulse train
Pulse train
Sign
Phase-A/B
pulse train
Forward pulse trains indicate motor revolutions in the positive direction, while reverse pulse trains indicate motor
revolutions in the reverse direction.
Phase-A/B x4 pulses of 90 q phase difference indicate both revolutions and rotating direction.
Forward Reverse