Hitachi MICRO-EHV+ - PWM Outputs

Chapter 3 Programming
3 – 72
3.20 PWM Outputs
DC outputs of MICRO-EHV+ are configurable for PWM (Pulse-Width Modulation) output. This can be used to
control DC and stepper motors.
Available I/O addresses of pulse train output and PWM output are listed as below.
bit 0
%QX3.0
bit 1
%QX3.1
bit 2
%QX3.2
bit 3
%QX3.3
bit 4
%QX3.4
bit 5
%QX3.5
Pulse Train
output
Pulse
ch.1
ch.2
ch.3
Direction (optional)
ch.1
ch.2
ch.3
PWM output
ch.1
ch.2
ch.3
Since the same output addresses are shared by pulse train and PWM outputs, either pulse train or PWM outputs can be
configured in each output.
ON
OFF
Cycle time =
Frequency
1
ON duty = 50%
ON
OFF
ON duty = 80%
ON
OFF
ON duty = 20%
ON duty
Configuration
Right click on “PWM outputs” and choose “Add Device…”.
Then “Add Device” window appears. Click PWM output chx and [Add Device] button.
Configuration and Mapping are not necessary for PWM outputs.