Allen-Bradley 1746-NO4V SLC 500 Analog Output Module Allen-Bradley

1746-NO4V

Allen-Bradley 1746-NO4V module is a Programmable Logic Controller (PLC) analog output module that belongs to the SLC 500 product platform. The output channels of this module produce voltage signal ranging from -10 to +10VDC signals.

When installing this module to the chassis, certain guides may be used for determining the ideal slot or chassis assignment of the module. Two (2) general factors are considered such as ambient Temperature and Electrical noise. For electrical noise, the module is recommended to be installed away from AC or high levels of DC voltage. Additionally, it is best to install this module away from the system power supply. For ambient temperature consideration, the chassis that is nearest to the enclosure bottom is the recommended installation chassis.

This module does not support removal under power. Never remove this module when power is applied as electrical arcs may happen causing damage to the electronic circuitry. The module may also be installed with the Removable Terminal Block (RTB) installed in its front panel. Use 14 AWG wire and limit a maximum of Two (2) wires terminated in the same terminal. This is to provide room for troubleshooting as well as be able to close the module cover.

Analog outputs may be assigned to a PID controller output, a result of Mathematical operation or a manual value entered from a Human Machine Interface (HMI), or Supervisory Control and Data Acquisition (SCADA). These are control commands sources. It may also be used to re-transmit signals for reference of other devices to implement their monitoring, recording and conversion applications. For stand alone controllers that require control coordination such as load sharing function, analog outputs may be used to send the reference signal of all involved controllers and devices.






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