1746- NO4I AB

Allen Bradley 1746-NO4I is an analog output module in the SLC-500 series. It has four analog output channels and four current outputs, which are not isolated at a separate level. The maximum backplane current consumed by the 1746-NO4I at 5 volts and 24 volts is 55 mA and 195 mA, respectively. Having a current of+/- 10% at a maximum of 195 mA when providing a 24 volt external power supply; It also has a SW1 switch for easier power selection. When the SW1 switch is in the UP position, the 1746-NO4I receives power from an external power source. When the SW1 switch is in the DOWN position, it receives power from the backplane.

The resolution of 1746-NO4I is 2.56348A per LSB. 1746-NO4I has 0 to 32767 output words in the current range of 0 to 21 mA; At 0 to 20 mA, it has 0 to 31208 output words, and at 4 to 20 mA, it has 6242 to 31208 output words.

The operating temperature of 1746-NO4I is between 0 and 60 degrees Celsius. It has 14 bit resolution and 2.5 ms step response time. It uses the RR conversion method and a load range of 0 to 500 Ω. In addition, it has a 5% over range capability. Its accuracy (overall) is+/- 0.298% of full scale at 25 degrees Celsius; At 0 to 60 degrees Celsius, its accuracy is+/- 0.541% of its nominal+/- 70 ppm/degree Celsius accuracy drift (overall maximum full scale).

1746-NO4I has a full scale gain error of+/- 298% at 25 degrees Celsius, a full scale gain error of+/- 516% at 0 to 60 degrees Celsius, plus a maximum full scale drift of+/- 62 ppm/gain error of degrees Celsius.