Technical Manual 5050 / MAN000539 Page 26/92
Epec Oy reserves all rights for improvements without prior notice
Epec Oy Postiosoite/Postal address Puhelin/Phone Fax Internet
Tiedekatu 6 PL/P.O.Box 194 +358-(0)20-7608 111 +358-(0)20-7608 110 www.epec.fi
FIN-60320 Seinäjoki FIN-60101 Seinäjoki, Finland
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: Exceeding the max value might cause damage to input.
Note 6: The maximum output current depends on the load, PWM frequency and temperature.
Note 7: The firmware limits the maximum current to 2,5 A. When the current exceeds the value
more than 200 ms, the output is switched off. The current can be adjusted to be less than 2,5 A
by software.
Note 8: When both outputs in a same package are used the total power output can be up to 4A.
For example if output1 continuous load is 2,5A then continuous max load for output2 is 4A –
2,5A = 1,5A.
Note 9: When the frequency increases, the actual duty cycle may be bigger than the value that
has been set.
Note 10: The output must be kept in off state when used as an input. The measured voltage
must not exceed the input voltage.
Note 11: 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 12: Overload conditions
Functional block diagram
Other Information
Refer to section Connection Examples to see examples of how to connect external
actuators or sensors when using this type of pin.
To Next Page
