Part Number: 2705-P21C1X; Product Name: AB Rockwell 2705-P21C1X Industrial Keypad
Brand: Allen-Bradley (Rockwell Automation); Product Series: 2705 Series, a rugged industrial keypad designed for human-machine interaction in harsh automation environments.
Product Status: Original New Unit (In Stock); Product Category: Industrial HMI Keypad, dedicated to providing reliable input control for industrial control systems, PLCs and equipment operation panels.
Core Applications: Factory automation lines, packaging machinery, material handling equipment, power distribution cabinets, industrial control panels, and other scenarios requiring durable and precise manual input operations.
Core Features: Wear-resistant tactile keys; Anti-glare surface design; Seamless integration with Rockwell PLC systems; Excellent electromagnetic interference resistance; Wide operating temperature range; Compact and panel-mountable structure.
2. Hardware Specifications
2.1 Key Configuration
Key Quantity: 21 Programmable Keys (Including 16 Function Keys + 5 Navigation Keys); Key Type: Tactile Membrane Keys, Industrial-Grade Wear-Resistant Material.
Key Life: ≥1,000,000 Operation Cycles per Key; Key Travel: 0.5mm ±0.1mm; Tactile Feedback: Clear Click Sensation for Operation Confirmation.
Backlight: Optional LED Backlight (Red/Green/Blue Selectable), Brightness Adjustable in 5 Levels; Backlight Lifetime: ≥50,000 Hours.
2.2 I/O & Communication Interfaces
Signal Output: Digital Signal (NPN Open Collector); Interface Type: DB15 Female Connector (Industry Standard); Cable Length: Up to 10m (Extension Cable Optional).
Compatibility: Directly Compatible with Allen-Bradley Micro800, CompactLogix and ControlLogix PLC Series; Supports Signal Cascading for Multi-Keypad Configuration.
Diagnostic Function: Built-in Key Status Diagnostic Signal, Real-Time Feedback of Key Operation Status to Host System.
3. Electrical Specifications
3.1 Power Parameters
Supply Voltage: DC 24V ±10% (Typical Operating Voltage: 21.6V-26.4V); Power Consumption: ≤3W (Typical), ≤5W (Max with Backlight On).
Inrush Current: ≤1A (At 24VDC, Startup); Standby Current: ≤100mA (Backlight Off, No Key Operation).
3.2 Protection & Isolation
Insulation Resistance: ≥50MΩ (At 500VDC); Withstand Voltage: 1500VAC for 1 Minute (Between Power Terminal and Signal Terminal).
Protection Functions: Built-in Reverse Polarity Protection, Over-Voltage Protection (Up to 30VDC); Signal Isolation: Opto-Isolation for Signal Output Ports (1000VAC).
