5-53
IM 701210-05E
Horizontal and Vertical Axes
5
Setup Items for Each Measurement Item
When the Measuring Rotation
• Pulse/Rotate
Set the number of pulses per rotation in the range of 1 to 99999 pulses.
When Measuring the Duty Cycle or Pulse Width
• Measure Pulse
Set the measurement pulse to Positive or Negative.
• When Measuring the Duty Cycle
Positive: Measures the ratio of the positive pulses.
Negative: Measures the ratio of the negative pulses.
• When Measuring the Pulse Width
Positive: Measures the width of the positive pulse.
Negative: Measures the width of the negative pulse.
Tp
Ta
Tb
Tp
Ta
Tb
• When Positive is selected
• When Negative is selected
Pulse width:
Measures the width of Tp
Duty:
Measures Ta/Tb
Pulse width:
Measures the width of Tp
Duty:
Measures Ta/Tb
Precautions to Be Taken When Measuring the Duty Cycle
The output is set to 0% or 100% when either of the conditions below is met when
measuring the duty cycle.
• When there is no pulse input after a time equal to 4 times the period of the pulse
that was input immediately before.
• When there is no pulse input for 20 s.
When the measurement pulse is set to Positive, the output is set to 0% when the
pulse input is low when the condition is met and 100% when the pulse input is high.
When the measurement pulse is set to Negative, the output is set to 0% when the
pulse input is high when the condition is met and 100% when the pulse input is low.
T: pulse period
The output is set to 0% when a time equal to
T×4 or 20 s elapses after the last pulse was input.
0% (when the measurement pulse is set to Positive)
Status when the condition is met: Low
When Measuring the Power Supply Frequency
• Center Frequency
Set the center frequency to 50 Hz, 60 Hz, or 400 Hz.
When Measuring the Pulse Integration
• Unit/Pulse
Set the physical amount per pulse in the range of –9.9999E+30 to 9.9999E+30.
• Unit
As necessary, enter the unit of pulse integration to be displayed on the screen using
up to 4 characters.
• Over Limit Reset
Select ON to reset the pulse count automatically when the range is exceeded. Select
OFF to not reset the pulse count. The default setting is OFF.
• Reset
To reset the pulse count manually, select Exec.
5.19 Setting the Frequency (Number of Rotations, Period, Duty Cycle, Power Supply Frequency,
Pulse Width, Pulse Integration, and Velocity) Measurement
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