Overview
The Allen-Bradley 1746-NO4V Series A is a dedicated 4-point analog output module engineered for the SLC 500 family of programmable logic controllers. This Analog Output Module has Four (4) output channels that provide output Voltage range of -10 to +10 VDC. This module is used with SLC 500 fixed or modular style hardware. Factory-calibrated and manufactured in the United States, the 1746-NO4V converts digital signals from the CPU into precise analog voltage outputs for controlling industrial field devices.
Key Features
- 4 Non-Isolated Voltage Outputs: 4 non-isolated analog voltage output channels that are capable of operating within a -/+10 Volts DC signal range
- Dual Power Supply Options: The 1746-NO4V Analog Output Module utilizes 5 Volts DC or 24 Volts DC backplane power, and it also has connection terminals for an external user-supplied 24 Volts DC power supply to drive outputs.
- High Resolution: 14-bit converter resolution, and uses the R-2R ladder for conversion
- LED Status Indicator & Removable Terminal Block: Equipped with an LED status indicator and a removable terminal block (RTB).
- Field Isolation: 500 Volts DC field wiring to backplane isolation
Technical Specifications
- Output Range: -10 to 10 Volts -1 LSB DC
- Output Accuracy: +/-0.208% of the full scale at 25 degrees Celsius ambient temperature
- Output Resolution: -32768 to +32765 at a voltage of +/-10V DC with a per LSB output resolution rating of 1.221mV
- Backplane Current Draw: 55 mA at 5 Volts and 145 mA at 24 Volts
- Step Response Time: 2.5ms step response time
- Maximum Load Current: 10 mA maximum load current
- Operating Temperature: 0 to 60 degrees Celsius
- Storage Temperature: -40°C to 85°C with a relative humidity tolerance of 5% to 95% (non-condensing)
- Power Dissipation: 3.78 Watts maximum
- Communication Format: 16-bit two’s complement binary communication format
Typical Applications
The module provides 4 channels of 0-10V voltage output, which can be used to interface with devices such as valves, motor drives, and other industrial equipment that accept a voltage signal. It is designed to work with SLC 500 processors and provides a flexible solution for controlling analog devices in industrial automation applications. The 1746-NO4V supports signal re-transmission, reference signaling for load-sharing functions, and process control applications requiring precise voltage outputs.
Compatibility & Replacements
Compatible With
- SLC 500 fixed-style controllers
- SLC 500 modular chassis (1746 chassis)
- Rockwell Automation SLC 500 family
- Systems using -10 to +10V DC analog signals
Replaces / Drop-In Replacement For
The 1746-NO4V Series A is the direct replacement module within the SLC 500 analog output product line. For detailed compatibility verification with specific chassis configurations or alternate module requirements, consult your system documentation or contact an authorized Rockwell Automation distributor.
Works With
- Allen-Bradley RSLogix 500 programming software
- SLC 500 I/O configuration tools
- Industrial automation control systems using analog voltage signals
- Third-party devices accepting ±10V DC inputs
