IFM Electronic Ecomat Mobile Series System Manual page 174

PWM in the ecomatmobile controller
Parameters of the function inputs
Name
ENABLE
INIT
OUTPUT_CHANNEL
ACTUAL_CURRENT
DESIRED_CURRENT
PWM_FREQUENCY
DITHER_FREQUENCY
DITHER_VALUE
MODE
MANUAL
Parameters of the function outputs
Name
PWM_RATIO
174
ifm System Manual ecomatmobile
Data type Description
BOOL TRUE: function is executed
FALSE: function is not executed
BOOL TRUE (only in the 1st cycle):
FALSE: during processing of the program
BYTE PWM output channel (0...x: values depend on the device)
WORD Actual current of the PWM output in [mA]; the function
OUTPUT_CURRENT (→ page 176) must be called. The
output value of OUTPUT_CURRENT is supplied to the input of
ACTUAL CURRENT.
WORD Desired current value in [mA]
WORD Permissible PWM frequency for the load connected to the
output
WORD Dither frequency in [Hz]
BYTE Amplitude of the dither value in [%]
BYTE Controller characteristics:
0 = very slow increase, no overshoot
1 = slow increase, no overshoot
2 = minimum overshoot
3 = moderate overshoot permissible
BYTE If value > 0, the self-optimising performance of the controller is
overwritten (typ. value: 50)
Data type Description
BYTE For monitoring purposes: display PWM pulse ratio 0...100%
SmartController (CR2500) V05
function initialised
Current control with PWM