ROCKWELL 1746SC-INO4I System Input/Output Module

Type	Analog Output Module
Input Voltage	Derived from the backplane at 5V DC, with an option for 24V DC external power
Output Signal	0 – 20 mA, 0 – 21 mA, 4 – 20 mA with 16 – bit resolution

Categories: Rockwell

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Description

ROCKWELL 1746SC-INO4I System Input/Output Module

1746SC-INO4I

The 1746SC – INO4I is a specialized analog output module, meticulously designed to play a pivotal role in a wide range of industrial applications. Its primary function is to convert digital signals from controllers into precise analog current signals, which are then used to drive and control various industrial devices. In manufacturing plants, for instance, it can be used to control the speed of variable – speed drives, ensuring smooth and efficient operation of conveyor belts, motors, and other machinery. By accurately regulating the current output, it helps in maintaining the desired production rates and product quality. In process industries like chemical plants, the module can be employed to control the flow rate of valves, regulating the amount of chemicals being transferred or processed. This level of precise control is crucial for ensuring the safety and efficiency of chemical reactions and overall plant operations.

Label	Specification
Model Number	1746SC – INO4I
Brand	ROCKWELL
Type	Analog Output Module
Input Voltage	Derived from the backplane at 5V DC, with an option for 24V DC external power
Output Signal	0 – 20 mA, 0 – 21 mA, 4 – 20 mA with 16 – bit resolution
Channel Count	4 isolated channels
Isolation	750 VDC channel – to – channel and field wiring to backplane isolation
Resolution	16 – bit, with 366 nA per count for current and 320 μV per count for voltage
Power Consumption	Draws 120 mA from the 5V DC backplane; external power option reduces backplane load
Mounting	Occupies one slot in a 1746 input / output chassis
Communication	Integrates with SLC 500 systems and compatible industrial networks
Update Time	Maximum of 33.7 milliseconds for all 4 parallel channels
Step Response Time	1 millisecond
Certifications	UL / CUL I Class 2 Division A, B, C, D groups and CE – certified

1746SC – INO4I

The 1746SC – INO4I is equipped with a host of functional strengths that make it a preferred choice in industrial applications. Its high – resolution 16 – bit output ensures precise control, allowing for minute adjustments in the analog signals. This level of precision is vital in applications where even the slightest deviation can lead to significant differences in the performance of industrial equipment. For example, in a semiconductor manufacturing process, where the control of etching or deposition equipment requires extremely accurate current regulation, the 1746SC – INO4I can deliver the necessary precision to achieve high – quality results.

The module’s isolated channels are a significant advantage. With 750 VDC of isolation between channels and between field wiring and the backplane, it effectively eliminates electrical interference and cross – talk. This isolation not only enhances the reliability of the module but also protects other components in the industrial control system from potential electrical malfunctions. In environments with high electromagnetic interference, such as near large motors or power distribution equipment, the isolated channels of the 1746SC – INO4I ensure stable and accurate signal transmission.

1746SC-INO4I

The design of the 1746SC – INO4I is both practical and user – friendly. It has a compact form factor, occupying only one slot in a 1746 input / output chassis, making it suitable for applications where space is at a premium. The module features a DIP switch that allows for easy selection of the power source, whether it’s from the backplane or an external 24V DC power supply. This flexibility in power sourcing helps in optimizing the electrical load distribution within the industrial control system. Additionally, the module comes with a removable 16 – pin terminal block, which simplifies wiring and connection to external devices.