thanswijk Posted January 16, 2019 Report Share Posted January 16, 2019 Hi, i'm trying to control a DC fan which needs a 25 kHz control signal. The control line is connected through the NPN output of an EX-D16A3-TO16 expansion module which is connected to a V1210. But one thing isn't clear to me at the moment: The expansion module can send a frequency of 1Hz - 32 kHz. So a MI should be enough for the job. But when I look in the help file under "Configuring a High-speed Output (PWM) > Frequency (F)", it says that the Software Units of a V1210 are 0.1Hz (500Hz = 5,000). This would mean that an MI would not be enough because a value of 32,000 would mean I only send a frequency of 3,200 Hz, instead of 32,000 Hz. I cannot select an other operand than a MI, so can I not use this expansion module for sending out an 25kHz signal to my fan? Quote Link to comment Share on other sites More sharing options...
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