CN0170 HARDWARE MANUAL
The SPD output is inactive while the motor is accelerating to maximum
velocity. The SPD output goes active coincident with the motor ceasing to
accelerate. The SPD output goes inactive again when the motor begins to
decelerate to a stop or a lower velocity.
When the axis is in a Joystick or Speed Mode, the SPD output will also be
active while the motor is stopped. This is because a stopped axis is
considered having a command speed of zero. When the axis is in the Ratio
Mode, the SPD output will mirror the SPD output of the other axis.
RUN X, Y: (pin 7, pin5)
The RUN output goes active anytime the motor is at a non-zero speed. This
output is useful for applications requiring the motor be stopped before a
process may occur. The RUN indicator LED lights when the motor is
turning; when the motor is stopped the LED is off, indicating a STOP
condition.
OUT 1,2: (pin 8, pin20)
The OUT outputs are user defined, meaning the user may turn the outputs
on or off as needed, independent of what the motor output is doing. An
OUT output is 'on' when it is at zero volts and 'off' when it is at 5 volts.
When it is 'on', the output has a current sink capability of 12 milliamps.
The OUT indicator LED is illuminated when the output is on and off when
the output is off.
The OUT output is updated 256 times a second. The minimum on or off
times for the output is 3.9 milliseconds. All on or off times are integer
multiples of 3.9 milliseconds.
INPUTS, DIGITAL:
The eight digital inputs consist of six dedicated machine control inputs and
two user-defined inputs. The inputs are active low, meaning the input has
to be at a logical '0' or grounded for activation. Each digital input has an
indicator LED associated with it. The LED lights when the input is
grounded. The labeled function on the cover next to each LED is active
when that LED is illuminated.
The inputs may be driven by a variety of devices. Suitable devices include
SPST switches, open collector transistors, opto-isolators, Hall-effect
sensors, TTL drivers or any type of device capable of sinking 14 milliamps
of current.
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Summary of Contents for CN0170
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