Pulse Train Outputs - Hitachi MICRO-EHV+ Applications Manual

Chapter 3 Programming

3.19 Pulse Train Outputs

DC outputs of MICRO-EHV+ are configurable for pulse train output. This can be used to control stepper motors.
Two different controls, position control and speed control, are supported. The both controls have ramp feature.
Position control
Position and speed are specified as number of pulses and frequency. After specified number of pulses have been
completed, pulse train operation stops.
Speed control
Only speed is specified as frequency of pulses. After started, frequency can be changed freely. Separate function
block is required to stop pulse train operation.
Available I/O addresses of pulse train output and PWM output are listed as below.
Pulse Train Pulse
output Direction (optional)
PWM output
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.
Configuration
Right click on "Pulse Train outputs" and choose "Add Device...".
Then "Add Device" window appears. Click Pulse output chx and [Add Device] button.
bit 0 bit 1
%QX3.0 %QX3.1
ch.1 ch.2
ch.1 ch.2
3 – 66
bit 2 bit 3
%QX3.2 %QX3.3
ch.3
ch.1
ch.3
bit 4 bit 5
%QX3.4 %QX3.5
ch.2 ch.3