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Directional pulse count input
Instruction book, IQAN
Directional pulse count input
Connecting a directional pulse count channel (DPCNT)
The DPCNT is a physical analog input. The directional pulse count input channel is
used to count pulses. It is bi-directional, which means it can add and subtract pulses.
The DPCNT is primarily designed for input from an encoder wheel. For maximum
frequency, see Appendix A.
Simple directional pulse count sensor
The positive terminal of the directional pulse count sensor is connected to the +VREF
and the negative terminal to the -VREF respectively. The sensor signals are connected
to the DPCNT+ and DPCNT- positions..
N
OTICE
The negative terminal of the sensor must not be connected to the chassis.
Maximum load for VREF position, see Appendix A.
EXAMPLE
Connect the positive and negative terminals of the frequency sensor to +VREF and
-VREF, respectively. Then connect the sensor signals to DPCNT+ and DPCNT-.
Connecting of directional frequency sensor to DFIN+ and DFIN-.
-VREF
+VREF
DPCNT-X+
Directional pulse
IQAN module
DPCNT-X-
count sensor
