I'm having trouble with a frequency converter. The data sheet is given here.
I set the converter for universal frequency input and voltage output. These can be configured by DIP switches. The diagram from the data sheet is given as below:
And here is how I do the wiring:
I use a 12V power supply, and as an input I couple 0/10V pulse train by using a function generator to the terminals 2 and 3 above. The pulse train is exactly 0..10V and I followed the advice on section 8.7 at page 20 to set the pulse properly.
I checked the DIP configuration too many times and I'm wondering whether my wiring is wrong. Just to make sure here is my DIP config:
For SW1: ON ON OFF OFF ON ON
For SW2: OFF ON OFF OFF OFF ON OFF ON OFF OFF
According to the data-sheet if I configure the DIP switches as above I should get 0 to 5V voltage output mapped from 1Hz to 300Hz frequency input range from a pulse train input.
But I get a constant 17.6V output by the voltmeter whatever the input frequency is, it is constant even though I don't hook up any input. The RED indicator flashes with 2.8Hz which data sheet says(at page 21) it happens when the "Sensor fault or invalid DIP switch configuration".
I spent several hours but no luck. Is the connection from the function generator to the terminals 2 and 3 correct?
Best Answer
You have configured "Universal Input Frequency to 0-5V". That's a relay input.
I'd would have used PNP input, but the manual is definitely not clear on this.
(as expected from Phoenix Contact)
1 to 300 hz, software configuration active.
You've set all the DIP switches, but you've forgot to enable dip 10, enabling the dip switches as active configuration.
New info from comment. With this sensor (Adolf Thies 4.3351.00.000) the output is push-pull. Similar to the function generator. However, you need to change the range significantly for 1082 Hz at 50 m/s (22 Hz per m/s)
Try DIP2: [ON ON] [OFF ON ON ON ON OFF] [OFF ON]
10 Hz to 1200 Hz DIP configured, 10 Hz is 1 BFT, 1200 Hz is beyond 12 BFT