Allen-Bradley 1769-OF4CI CompactLogix 4-Point Analog Output Current Module

Allen-Bradley 1769-OF4CI CompactLogix 4-Point Analog Output Current Module

The Allen-Bradley 1769-OF4CI is a precision-engineered 4-point analog output current module designed for demanding industrial control applications within the CompactLogix platform. Delivering reliable 4-20mA signal conversion with reinforced 500V isolation and integrated overvoltage protection, this module ensures stable process control across manufacturing, energy, and automation environments.

Technical Specifications

Core Performance:

• Output Channels: 4 independent current outputs
• Output Range: 4-20mA (configurable)
• Isolation Voltage: 500V AC / 710V DC (output group to bus)
• Overvoltage Protection: Integrated circuit protection
• Rated Working Voltage: 30V AC / 30V DC
• Power-up/Power-down Response: No current glitch

Physical Dimensions:

• Dimensions (H W D): 118mm — 35mm — 87mm (4.65″ — 1.38″ — 3.43″)
• Height with Mounting Tabs: 138mm (5.43″)
• Weight: 270g (0.60 lb)
• Slot Width: Single module

Electrical & Wiring:

• Wire Size: 22-14 AWG (solid), 22-16 AWG (stranded)
• Wire Type: Cu-90 °C (194 °F)
• Terminal Screw Torque: 0.68 N m (6 lb in)
• Recommended Cable: Belden 8761 (shielded)

Configuration Data:

• Input Words: 6
• Output Words: 5
• Configuration Words: 32

Application Scenarios

The 1769-OF4CI excels in process control environments requiring precise current-loop signaling:

• Variable Frequency Drive (VFD) Control: Regulate motor speed via 4-20mA setpoint signals in HVAC, pump, and conveyor systems
• Valve Positioning: Command proportional control valves in chemical dosing, water treatment, and oil & gas applications
• Transmitter Interfacing: Send analog commands to pressure, flow, and level transmitters for closed-loop process automation
• SCADA Integration: Bridge CompactLogix controllers to legacy DCS or SCADA systems using industry-standard current loops

Solution Advantages

• Reinforced Isolation: IEC Class II reinforced insulation (500V AC) protects against ground faults and electrical noise in harsh industrial environments
• Hot-Swappable Design: DIN rail or panel mount with tool-free installation; supports live module replacement without system shutdown
• Diagnostic Capability: Built-in fault detection for open-circuit, short-circuit, and over-range conditions with real-time status reporting to RSLogix 5000
• Compact Footprint: Single-slot design maximizes I/O density in space-constrained control panels

Compatible Power Supplies

Operates with Allen-Bradley 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4 power supplies. Maximum power supply distance rating: 8 modules.

Replacement Parts & Accessories

• Terminal Block: 1769-RTBN18 (1 per kit)
• Door Label: 1769-RL2 (2 per kit)
• Replacement Door: 1769-RD (2 per kit)

Frequently Asked Questions

Q: Can the 1769-OF4CI output voltage signals?
A: No, this module is current-output only (4-20mA). For voltage output applications, consider the 1769-OF4VI or 1769-OF8V modules.

Q: What is the maximum loop resistance?
A: At 24V DC supply, the module supports up to 600 © loop resistance per channel (verify against your specific power supply voltage).

Q: Is this module compatible with ControlLogix chassis?
A: No, the 1769-OF4CI is designed exclusively for CompactLogix (1769) and Compact I/O systems. For ControlLogix, use the 1756-series analog output modules.

Q: Does it require external termination resistors?
A: No, the module includes internal current-sourcing circuitry. Simply wire your 4-20mA load device directly to the output terminals.

Warranty & Support

All units include a 12-month manufacturer warranty covering defects in materials and workmanship. Factory-calibrated and tested to Allen-Bradley specifications. Technical support available via email and phone.

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