Description
Allen-Bradley 1771-IH Digital DC Input Module for PLC-5 Systems
The 1771-IH from Allen-Bradley/Rockwell Automation delivers reliable 24-48V DC input capability for industrial control applications. This 8-channel module provides robust performance in demanding environments with excellent noise immunity and isolation. It serves as a dependable interface between field devices and your PLC-5 control system.
Technical Specifications
- Brand & Model: Allen-Bradley 1771-IH
- Module Type: Digital DC Input Module
- Input Channels: 8 Isolated Channels
- Operating Voltage: 24-50V DC Range
- Voltage Category: 10-60V DC Sink (Source Load)
- Nominal Current: 8.4mA @ 24V, 20mA @ 48V
- Response Time (On): 15ms (±7ms)
- Response Time (Off): 20ms (±9ms)
- Backplane Current: 74mA @ 5V DC
- Off-State Current: 0.7mA Maximum
- Isolation Rating: 1500V AC RMS
- Input Impedance: 2.5-3KΩ (On), 5-6KΩ (Off)
- Operating Temperature: 0° to 60°C (32° to 140°F)
- Power Dissipation: 0.4W Min, 8.1W Max
Installation & Configuration
- Designed for 1771 series I/O chassis mounting
- Includes 1771-WA wiring arm for easy installation
- Rack-mountable design for industrial control panels
- Eight red status indicators for channel monitoring
- Supports standard PLC-5 addressing modes
- Optical isolation provides noise immunity
Packaging & Delivery
- Includes one 1771-IH module and wiring arm
- Industrial-grade packaging ensures safe transit
- Global shipping via FedEx, UPS, and DHL available
- 12-month product warranty for customer protection
Compatible Communication Modules
- For network integration, consider the 1771-ACN15 ControlNet Adapter
- For alternative networking, see the 1771-ACNR ControlNet Module
Frequently Asked Questions
- What types of field devices work with this module? It compatible with various sensors, limit switches, and push buttons
- Can this module handle 120V AC signals? No, it designed exclusively for 24-50V DC input signals
- What is the maximum off-state voltage? The module can tolerate up to 4.5V DC in off-state condition
- How many modules can one chassis support? This depends on your specific 1771 chassis configuration
- Does the module include surge protection? Yes, it features 1500V isolation for transient protection
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