AX561 Analog Input Setting and connection for 4-20 mA
Hello Everyone, I have AX561 module, I have made connection for 2 analog inputs and 2 analog outputs. Analog outputs works fine, For analog input as 4-20 mA, I have take input to terminals 2 and 3, 5 and 6 which goes to transmitter I have also shorted terminals 1 with 2, 4 with 5. But I get reading in software as -6910 and -6930. What could be the reason. Do my electrical connections are right? Please help.
Asked 2 years ago
Answers
2
Hi,
The right connection for AI0 is:
1 and 2 together = + from sensor 4-20mA
3 = - from sensor 4-20 mA
It depends which type of sensor do you have:
4-wire (active sensor) = + of sensor's output to 1&2, - of sensor's output to 3
3-wire (passive sensor) = +24VDC to + of sensor; - of sensor to 1&2; -24VDC to 3
Check if your AI is configured as 4-20mA
Reading arround -6910 means about 0 mA from your sensor - check if it is really 4-20 mA.
Masure the current with mA meter connected in series to your circuit.
The right connection for AI0 is:
1 and 2 together = + from sensor 4-20mA
3 = - from sensor 4-20 mA
It depends which type of sensor do you have:
4-wire (active sensor) = + of sensor's output to 1&2, - of sensor's output to 3
3-wire (passive sensor) = +24VDC to + of sensor; - of sensor to 1&2; -24VDC to 3
Check if your AI is configured as 4-20mA
Reading arround -6910 means about 0 mA from your sensor - check if it is really 4-20 mA.
Masure the current with mA meter connected in series to your circuit.
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