Vexta aStep AS Series Operating Manual page 40

Note
If TIM output is to be detected,
set the pulse speed at 500 Hz or
less.
Use the ×10 (resolution
selection) input to switch the
resolution only when TIM output
is in the "ON" state and the
motor stops.
If the resolution is switched
under any other conditions, TIM
output may not turn "ON" even
when the output shaft has
rotated 7.2°.
Note
The pulse-output delays behind
motor rotation by up to 1 ms.
The output may be used to verify
the motor's stop position.
40
TIM (Timing) output
TIM output are available in two types: transistor open-collector output and line-driver output.
Use either one to suit the input system of the positioning controller.
The use of TIM output requires separate 5 or 24 VDC power.
TIM output turns "ON" whenever the motor's output shaft rotates 7.2°.
Motor operation
TIM output
OFF
(Timing)
ASG output and BSG output
ASG and BSG outputs are available in two types: transistor open-collector output and line-
driver output.
Use either type to suit the input system of the counter unit and other functions of the controller.
The use of ASG and BSG outputs requires separate 5 or 24 VDC power.
The output-pulse resolution will be the same as the motor resolution at the time power is
supplied to the driver (as set by the resolution selection switch).
Counting ASG output pulses allows the motor position to be monitored.
ASG1 output
BSG1 output
ASG output: Outputs pulse while the motor operates.
BSG output: Detects the direction of motor rotation. It has a 90° phase difference with regard
to ASG output.
The level of BSG output at the rise time of ASG output indicates the direction of
motor rotation.
Movement
ON
ON
OFF
90°
ON
OFF
Movement
Stop Stop