MAN1106-07-EN_XL+_UserManual
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At controller power-up or during a download, the PWM output is maintained at zero until both the
Frequency and the Duty cycle are loaded with non-zero values. When the controller is placed in
stop mode, the state of the PWM outputs is dependent on the
PWM State on Controller Stop
configuration. This configuration allows for either hold-last-state or specific frequency and duty
cycle counts. Specifying zero for either the period or duty causes the PWM output to remain low
during stop mode.
NOTE: For standard I/O models (1E3, 1E4, 1E5, and 1E6) the maximum recommended PWM
frequency is 10kHz, due to the limitations of built-in output circuitry. The HE-XHSQ generates 24V
pulse outputs with a recommended max of 400kHz. The HE-XHSQ-5 generates 5V pulse outputs
with a recommended max of 1.0MHz. The add-on HSQ and HSQ-5 module can be added to the 1E2
unit for HSC function.
9.5.3 PWM Output Waveform
Figure 9.8
–
PWM Output Waveform
Table 9.4
–
PWM Output Waveform Table
Rise Time
150ns Max
Fall Time
150ns Max
PWM Period
Frequency =
1
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