Specifying the pulse width

You can specify the duty cycle of the output signal via the process data value "PWM Outputs Channel n" > "PWM output". The pause duration is calculated automatically as the difference to the 100 % pulse duration.

The value range of the pulse width is determined via the user scale in the CoE parameter 0x80n0:12 "Gain" and 0x80n0:11 "Offset".

• Value range without user scale in the factory setting (default)
  User scale is not enabled in the factory setting ("Enable user scale" = FALSE). No further user scale settings (0x80n0:12 "Gain"/0x80n0:11 "Offset") are required.
  Value range: 0 ... FFFF_hex (65535_dec) for 0 ... 100% duty cycle
• Set the value range via the user scale (see block diagram)
• Enable user scale via index 0x80n0:01 "Enable user scale"
• Set the desired value range via 0x80n0:11 "Offset" and 0x80n0:12 "Gain".

• Specify pulse-pause ratio (duty cycle) via 0x70n0:11 "PWM output"
  The following table shows examples for setting the duty cycle without user scale (factory setting) and with user scale.