Product Description

Model Definition

• 14: 14C series (Minpak+ DC drives)

• C: Motor Control (DC drive category)

• 312: Power rating & config (10HP, 230/460VAC input)

Technical Specifications

• Input: Three-phase AC, 230/460VAC (selectable), 50/60Hz

• Output: DC armature (0–460VDC), DC field (fixed/adjustable)

• Power Rating: 10HP (7.5kW) @ 460VAC

• Control Modes: Open-loop voltage; closed-loop speed (tach feedback)

• Protection: Overcurrent, overvoltage, undervoltage, overtemperature, short circuit, ground fault

• Ambient: 0–55°C, 5–95% RH (non-condensing)

• Mounting: Panel-mount (vertical installation required)

Interface & Wiring

• Power Terminals: L1/L2/L3 (3-phase in), A+/A- (armature out), F+/F- (field out), PE (ground)

• Control Terminals: Start/stop, forward/reverse, 0–10VDC speed ref, tach feedback, fault reset

• Communication: No onboard network port; hardwired analog/digital control only

Core Functions

1. Precision Speed Regulation: Dual-loop (speed+current) control for stable speed under variable loads

2. High Torque Density: Strong starting/low-speed torque for 10HP heavy-duty loads

3. Integrated Protection: Fault shutdown/limiting to safeguard drive and motor

4. Potentiometer Adjustment: Onboard pots for max speed, current limit, gain, field weakening

Application Scenarios

• Machine Tools: Lathes, mills, grinders needing 10HP DC control

• Material Handling: Conveyors, small cranes/hoists with high starting torque

• Process Industry: Mixers, fans, pumps with variable speed demands

• Legacy Retrofit: Direct replacement for old Reliance Minpak+ 14C series drives

Usage & Maintenance

Usage

1. Install vertically on rigid panel; ≥100mm clearance around for cooling

2. Wire power/motor/control cables per labels; ensure reliable grounding

3. Set parameters (max speed, current limit) via onboard potentiometers

4. Jog test to verify motor rotation before full-load operation

5. Avoid continuous overload; operate within rated current/voltage

Maintenance

1. Every 3–6 Months: Inspect chassis, cables, terminals for damage/loose connections

2. Cleaning: Disconnect power; wipe dust with dry cloth (no liquid cleaners)

3. Annual Checks: Retighten terminals; clean heat sink fins to prevent overheating

4. Static Protection: Internal ESD-sensitive components; do not open chassis without proper grounding

5. Storage: Spare units in cool, dry, dust-free environment