5050 CONTROL UNIT
Technical Manual & Cabling Instructions
19.10.2012
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V
IL
Digital status input
Output Off 1,9 V
V
I-range
Input voltage range (Note 11) -0,5
VDCPOWERx
V
t
I
Digital Status Input
Pulse Width
(Note 2, 4, 8)
tC + 25% ms
Note 1: Frequency of a (PWM) Pulse Width Modulation is = 1 / Period
Note 2: The duty cycle is defined as the percentage of digital ‘high’ to digital ‘low’ signals
present during a PWM period.
Note 3: The PWM resolution is defined as the maximum number of pulses that you can pack
into a PWM period.
Note 4: tC denotes software cycle time.
Note 5: Current limit for short circuit protection to protect cabling and to limit internal power
dissipation.
Note 6: Exceeding the max value might cause damage to input.
Note 7: The maximum output current depends on the load, PWM frequency and temperature.
Note 8: Pulse width must be greater that the software cycle time. For example with 50/50 pulse
ratio, the pulse frequency is 1 / (2*pulse width)
Note 9: When the limit is exceeded, the output voltage circuit starts to limit the current by
switching the output voltage. The switching does not effect the application software
Note 10: When the frequency increases, the actual duty cycle may be bigger than the value that
has been set.
Note 11: Overload conditions
Functional block diagram
Refer to section Connection Examples to see examples on how to connect some
external actuators or sensors when using this type of pin.
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