Eaton XN300 - Page 242

31 XN-322-4AIO-I analog input/output module
31.4 Technical specifications
XN300 slice modules 02/24 MN050002EN Eaton.com 238
31.4.3 External power supply
The 24 VDC power supply is used to power the analog inputs and outputs.
31.4.4 Measurement ranges
31.4.5 Diagnostics
When it comes to the analog inputs, cable breaks will only be detected with
diagnostics when using the 4 – 20 mA measuring range. When using the 0 –
20 mA measuring range, the open wire detection diagnostics will always
read "FALSE."
Channels Value
Number of supply voltages 1 (X3, pin on connector 24V)
Supply voltage +24 V 18…30 VDC
Voltage monitoring Supply voltage OK status LED U > 18 VDC
Maximum power acceptance 70 mA
Current
in mA
Value representation
in μA
0…20mA 0000…20000 Represented as a decimal value
4…20mA 4000…20000
￫
Range and channel diagnostics must be taken into account in
order to ensure that the reading shown is being interpreted
correctly.
Diagnostics Measuring range in mA
0 – 20 4 – 20
Cable break
– < 4 mA (diagnostics)
Under Range
– 0 … 4 mA
Display value
Measured value
Over Range 20 …21 mA
over current >21mA
Display value > 21 (no reading)