Allen-Bradley 1771-WB PLC-5 Field Wiring Arm
Configured for field signal termination in Allen-Bradley PLC-5 systems, the Allen-Bradley 1771-WB (1771-WB Field Wiring Arm) provides direct physical/electrical execution. It establishes low-resistance terminal interfaces between plant field conductors and 1771 series I/O modules, enabling rapid module replacement without disconnecting individual field wires.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-WB |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.15 lbs (0.07 kg) |
| Dimensions | Standard 1771 I/O Wiring Arm Form Factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive (No external power required) |
| Component Type | Field Wiring Arm |
| Terminal Count | 12 Terminals |
| Contact Plating | Gold-Plated Contacts |
| System Compatibility | Allen-Bradley 1771 I/O Platform |
Backplane Bus Communication Velocity & I/O Density Scaling
The 1771-WB field wiring arm supports high-density I/O arrays while preserving low-level electrical signal integrity across backplane communication loops. Built with 12 gold-plated contact points, the unit resists surface oxidation and contact degradation under low-voltage and low-current signal conditions. Its mechanical latching frame mounts directly to the 1771 chassis pivot bar, maintaining precise pin alignment to eliminate insertion strain on I/O module front connectors during system operations.
Frequently Asked Questions
Q: Does the 1771-WB wiring arm require an external power supply connection?
A: No, the 1771-WB is a passive electromechanical connection arm that requires no external DC or AC power supply.
Q: Can the 1771-WB be removed while field wiring remains intact?
A: Yes, the wiring arm unlatches and pivots away from the front of the 1771 I/O module, allowing the module to be removed or replaced while all field wiring remains clamped to the arm.
Field Installation Guidelines
- Pivot Pin Alignment: Position the bottom edge of the 1771-WB wiring arm onto the lower pivot pin of the assigned 1771 chassis slot.
- Terminal Wiring: Connect field wires to the 12 screw terminals using spade lugs or stripped conductors, ensuring tight mechanical connection without over-torquing terminal screws.
- Module Engagement: Pivot the wiring arm upward against the front of the installed 1771 I/O module until the locking latch engages firmly into place.
Allen-Bradley 1771-WB PLC-5 Field Wiring Arm
Allen-Bradley 1771-WB PLC-5 Field Wiring Arm
Configured for field signal termination in Allen-Bradley PLC-5 systems, the Allen-Bradley 1771-WB (1771-WB Field Wiring Arm) provides direct physical/electrical execution. It establishes low-resistance terminal interfaces between plant field conductors and 1771 series I/O modules, enabling rapid module replacement without disconnecting individual field wires.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-WB |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.15 lbs (0.07 kg) |
| Dimensions | Standard 1771 I/O Wiring Arm Form Factor |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive (No external power required) |
| Component Type | Field Wiring Arm |
| Terminal Count | 12 Terminals |
| Contact Plating | Gold-Plated Contacts |
| System Compatibility | Allen-Bradley 1771 I/O Platform |
Backplane Bus Communication Velocity & I/O Density Scaling
The 1771-WB field wiring arm supports high-density I/O arrays while preserving low-level electrical signal integrity across backplane communication loops. Built with 12 gold-plated contact points, the unit resists surface oxidation and contact degradation under low-voltage and low-current signal conditions. Its mechanical latching frame mounts directly to the 1771 chassis pivot bar, maintaining precise pin alignment to eliminate insertion strain on I/O module front connectors during system operations.
Frequently Asked Questions
Q: Does the 1771-WB wiring arm require an external power supply connection?
A: No, the 1771-WB is a passive electromechanical connection arm that requires no external DC or AC power supply.
Q: Can the 1771-WB be removed while field wiring remains intact?
A: Yes, the wiring arm unlatches and pivots away from the front of the 1771 I/O module, allowing the module to be removed or replaced while all field wiring remains clamped to the arm.
Field Installation Guidelines
- Pivot Pin Alignment: Position the bottom edge of the 1771-WB wiring arm onto the lower pivot pin of the assigned 1771 chassis slot.
- Terminal Wiring: Connect field wires to the 12 screw terminals using spade lugs or stripped conductors, ensuring tight mechanical connection without over-torquing terminal screws.
- Module Engagement: Pivot the wiring arm upward against the front of the installed 1771 I/O module until the locking latch engages firmly into place.
