Description
Description
The Allen-Bradley 1746-NO4V is a specialized analog output module engineered for the SLC 500 control system. It features four independent voltage output channels, providing precise control for industrial actuators, servo drives, and variable frequency drives (VFDs). This module is designed to handle various voltage ranges, including ±10V, 0-10V, 0-5V, and 1-5V, making it a versatile component for complex automation tasks that require rapid response times.
Features
- Four analog voltage output channels for flexible control integration.
- High-speed parallel processing with a total update time of 512 microseconds.
- Supports multiple output signal ranges to accommodate various industrial hardware standards.
- Backplane-to-field isolation rated at 500V DC for enhanced system protection.
- Compact design optimized for the SLC 500 chassis environment.
Applications
This module is typically utilized in motion control systems, process regulation, and speed control applications where low latency is critical to maintaining system stability and performance. It serves as a reliable interface between the SLC 500 processor and external analog-controlled equipment.
Technical Specifications
| Brand |
Allen-Bradley |
| Product Line |
SLC 500 |
| Module Type |
Analog Voltage Output |
| Number of Outputs |
4 |
| Signal Ranges |
±10V, 0–10V, 0–5V, 1–5V DC |
| Update Time |
512 µs (all channels) |
| Backplane Current (5V) |
55 mA |
| Backplane Current (24V) |
145 mA |
| Isolation |
500V DC (Backplane to Field) |
| Operating Temperature |
0 to 60 degC (32 to 140 degF) |
Installation Guidelines
- Power down the SLC 500 chassis before installing or removing the module.
- Ensure the module is fully seated in the I/O slot to maintain reliable backplane communication.
- Use shielded twisted-pair cabling for all analog signal connections to minimize electromagnetic interference (EMI).
- Maintain proper grounding practices for the cable shields to prevent ground loops.
- Ensure adequate ventilation within the cabinet to keep operating temperatures within the specified 0-60 degC range.
FAQ
Are the output channels isolated from each other?
No, the 1746-NO4V provides isolation between the backplane and field wiring, but the individual output channels are non-isolated from one another.
Does this module require external power?
Yes, the module requires a 24V DC external power supply for proper operation.
