Reliance Electric 14C109(FlexPak Plus)
May 28, 2026

Reliance Electric 14C109(FlexPak Plus)

The 14C109 is a single-phase regenerative DC motor drive from the Reliance Electric (Rockwell Automation) FlexPak Plus series, rated 5 HP. It is a full-wave converter designed for precise speed and torque control of DC motors, supporting both motoring and regenerative braking. As a legacy product, it is widely used for maintenance and replacement of existing industrial DC drive systems.

Description

Product Description

The 14C109 is a single-phase regenerative DC motor drive from the Reliance Electric (Rockwell Automation) FlexPak Plus series, rated 5 HP. It is a full-wave converter designed for precise speed and torque control of DC motors, supporting both motoring and regenerative braking. As a legacy product, it is widely used for maintenance and replacement of existing industrial DC drive systems.

Model Definition

  • 14: FlexPak Plus series, single-phase DC drive platform.

  • C: Control category, DC motor controller.

  • 109: 5 HP power rating, 230 VAC input, regenerative topology.

  • Suffix (A/U): A=regenerative with auxiliary panel; U=standard non-regenerative unit.

Technical Specifications

  • AC Input: 230 VAC ±10%, single-phase, 50/60 Hz, 11.04 kVA.

  • DC Output (Armature): 180 VDC, 25 A continuous.

  • Field Output: 200 VDC, 3 A continuous.

  • Motor Power: 5 HP (3.7 kW) at 180 VDC armature.

  • Control Modes: Armature voltage regulation, tachometer feedback speed regulation.

  • Protection: Overcurrent, overvoltage, thermal, power outage auto-restart inhibit.

  • Ambient Conditions: 0–55°C, 5%–95% non-condensing humidity, up to 1000 m altitude.

  • Weight: Approx. 6.4 kg (14 lb).

  • Construction: Compact panel-mount chassis, metal enclosure.

Interface and Communication Configuration

  • Power Terminals: AC input (L/N), DC armature (+/−), DC field (+/−), PE ground.

  • Control Terminals: Start/stop, forward/reverse, speed reference (0–10 VDC), tachometer feedback input.

  • Feedback: Analog tachometer input for closed-loop speed control; isolated voltage/current feedback for regulation.

  • Communication: No built-in network port; hardwired control signals only.

  • Mounting: Standard panel-mount chassis for industrial control panels.

Core Functions

  • Regenerative Control: Supports four-quadrant operation, returns braking energy to AC line for energy efficiency.

  • Precise Speed Regulation: Closed-loop tachometer feedback ensures stable speed under varying loads.

  • Dual-Loop Control: Analog current major loop enhances torque response and overload protection.

  • Integrated Protection: Overcurrent, overvoltage, thermal shutdown, and power outage interlock safeguard motor and drive.

  • Compact Design: Space-saving chassis simplifies panel integration and wiring.

Application Scenarios

  • Legacy DC Motor Systems: 5 HP DC motors in manufacturing, metalworking, and material handling.

  • Conveyors & Cranes: Applications requiring precise speed control and regenerative braking.

  • Machine Tools: Lathes, drills, and grinders with DC drive systems.

  • Retrofit Projects: Replacing outdated DC drives in existing industrial lines.

  • Textile & Printing: Constant-speed or variable-speed DC motor applications.

Usage and Maintenance Instructions

Usage

  • Installation: Mount vertically on a rigid panel with 100 mm clearance for ventilation.

  • Wiring: Connect AC input, armature, field, and control wires per terminal diagrams; ensure reliable grounding.

  • Configuration: Set speed reference, current limit, and feedback parameters via onboard potentiometers.

  • Commissioning: Jog motor to check rotation direction; verify speed regulation under load.

  • Operation: Avoid continuous overload; monitor temperature and current during long runs.

Maintenance

  • Inspection: Every 3–6 months, check terminals, wiring, and enclosure for damage or corrosion.

  • Cleaning: Disconnect power; wipe with dry cloth to remove dust; avoid moisture/chemicals.

  • Terminal Tightening: Annually retighten power and control terminals to prevent loose connections.

  • Cooling Check: Ensure ventilation paths are clear; clean fan/heat sink if clogged.

  • Replacement: If faulty, replace with refurbished/equivalent unit; do not repair PCB (static-sensitive).

  • Storage: Store spares in cool, dry, dust-free environment; use anti-static bags.


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