Emerson UNI2401 AC Variable Speed Drive – Control Techniques Unidrive Series
When a variable speed drive fails on the production floor, the consequences are immediate and costly: conveyor lines halt, motors run uncontrolled, and entire manufacturing cells go dark. Downtime in seconds translates to thousands in lost output. The Emerson UNI2401 — part of the legendary Control Techniques Unidrive platform — is the precision component that keeps your motion control system running without compromise. Its absence is not an option in any serious industrial environment.
The UNI2401 occupies a foundational position within the Unidrive series, delivering 0.75kW (1HP) output power at a 200–240V single/three-phase input. Designed for open-loop and closed-loop vector control, this drive has earned its place in global automation infrastructure across automotive, food & beverage, HVAC, and material handling sectors. Control Techniques, now under the Nidec Industrial Automation umbrella (formerly Emerson Industrial Automation), has shipped millions of Unidrive units worldwide — making the UNI2401 one of the most field-proven compact drives in the industry.
Technical Specifications
- Model: UNI2401
- Brand: Control Techniques (Emerson)
- Series: Unidrive Classic
- Output Power: 0.75 kW (1 HP)
- Input Voltage: 200–240V AC, Single/Three Phase
- Output Voltage: 0–240V AC, Three Phase
- Output Frequency: 0–1000 Hz
- Control Modes: Open-loop V/Hz, Open-loop Vector, Closed-loop Vector, Servo
- Enclosure Rating: IP20
- Weight: Approx. 460 g
- Communication: RS-485 (CT protocol / Modbus RTU via option)
- Analog Inputs: 2 × ±10V / 0–20mA configurable
- Digital I/O: 6 digital inputs, 3 relay outputs
- Braking: Internal braking transistor (external resistor required)
- Standards: CE, UL, cUL
Key Features & Benefits
- Multi-mode control flexibility: Supports V/Hz, open-loop vector, closed-loop vector, and servo modes — one drive platform for diverse motor types.
- High-resolution speed control: 0.01 Hz resolution enables precise process control in tension, positioning, and speed-critical applications.
- Compact DIN-rail compatible footprint: Space-efficient design integrates into existing control cabinets without panel redesign.
- Built-in PLC functionality: Onboard programmable logic reduces external controller dependency for simple sequencing tasks.
- Wide frequency output range (0–1000 Hz): Supports high-speed spindle and specialized motor applications beyond standard 50/60 Hz.
- Robust EMC compliance: Meets EN 61800-3 Category C2 with optional EMC filter, ensuring clean operation in sensitive environments.
- Fieldbus expandability: Optional PROFIBUS, DeviceNet, CANopen, and Interbus modules extend connectivity to major industrial networks.
- Auto-tuning: Static and rotating auto-tune routines optimize motor performance without manual parameter calculation.
Industry & Equipment Applications
- Conveyor & Material Handling: Speed regulation for belt conveyors, roller tables, and sortation systems.
- HVAC & Building Automation: Fan and pump control for energy-efficient building management systems.
- Food & Beverage Processing: Hygienic-compatible drive control for mixers, fillers, and packaging lines.
- Machine Tool & Spindle Drives: High-frequency output for CNC spindle and grinding applications.
- Textile Machinery: Precise tension and speed control for winding, unwinding, and draw frames.
- Water & Wastewater: Pump and blower control with PID feedback for flow optimization.
- Automotive Assembly: Coordinated multi-axis motion in robotic and transfer line applications.
System Integration & Compatible Parts
The UNI2401 is designed for seamless integration within the Control Techniques Unidrive ecosystem. Compatible accessories and replacement parts include:
- Fieldbus Option Modules: UD70 (PROFIBUS-DP), UD73 (DeviceNet), UD74 (CANopen)
- Encoder Feedback Modules: UD51, UD52 for closed-loop vector and servo operation
- EMC Filters: 4200-6101 series line filters for CE compliance
- Braking Resistors: External resistors for regenerative braking duty cycles
- Keypad & Remote Display: CT Comms cable + UniSoft / SyPTLite software for parameter backup and commissioning
- Related Unidrive Models: UNI1401, UNI2402, UNI3401, UNI3402 — same platform, different power ratings
Our Quality Assurance Process
At Konmask.com, every UNI2401 unit undergoes a rigorous multi-stage inspection before shipment:
- ✅ Visual Inspection: PCB, terminals, and housing checked for physical damage, corrosion, or counterfeit indicators.
- ✅ Functional Power-On Test: Drive powered up and verified for fault-free initialization and parameter access.
- ✅ Firmware Version Verification: Confirmed against Control Techniques official version records.
- ✅ Anti-Static Packaging: Shipped in ESD-safe bags with foam cushioning and moisture barrier.
- ✅ Traceability Documentation: Batch records and inspection reports available upon request.
How to Order
- Submit your inquiry via the Contact / Request a Quote form on this page.
- Provide your required quantity, delivery timeline, and destination country.
- Our technical team will confirm availability, lead time, and issue a formal quotation within 24 hours.
- Upon PO confirmation, we arrange quality inspection, export documentation, and international shipping.
- Tracking information and commercial invoice provided upon dispatch.
📧 Email: [email protected] | 📞 WhatsApp/Tel: +0086 19859288691
Why Choose Konmask.com?
- 🌐 Global B2B Supplier — Serving industrial buyers across 50+ countries with hard-to-find automation components.
- 🔍 Authentic Parts Only — Strict sourcing protocols and anti-counterfeit verification on every unit.
- ⚡ Fast Response — Technical inquiries answered within 24 hours by qualified automation engineers.
- 📦 Flexible MOQ — Single-unit orders accepted; volume pricing available for OEM and MRO buyers.
- 📋 Full Documentation — COO, packing list, commercial invoice, and test reports provided.
- 🔄 Warranty Support — DOA replacement policy and post-sale technical assistance.
Frequently Asked Questions
Q1: Is the UNI2401 the same as the Unidrive Classic series?
A: Yes. The UNI2401 is part of the Unidrive Classic (also referred to as Unidrive 1 or UD) platform manufactured by Control Techniques, an Emerson Industrial Automation brand. It is distinct from the newer Unidrive SP or Unidrive M series.
Q2: Can the UNI2401 control a servo motor?
A: Yes, with the appropriate encoder feedback option module (e.g., UD51/UD52), the UNI2401 supports closed-loop servo control mode.
Q3: What is the difference between UNI2401 and UNI2402?
A: The UNI2401 is rated for 0.75kW at 200–240V input, while the UNI2402 is rated for 1.5kW at the same voltage range. Both share the same Unidrive Classic platform and parameter structure.
Q4: Do you provide the original Control Techniques programming software?
A: We can advise on sourcing UniSoft and SyPTLite software. These are available from Control Techniques / Nidec official channels. We provide the CT Comms cable required for PC connection.
Q5: What is the lead time for the UNI2401?
A: Lead time depends on current stock levels. In-stock units ship within 3–5 business days. For sourced units, typical lead time is 7–15 business days. Contact us for real-time availability.
Q6: Is this drive suitable for 60Hz markets (USA, Canada)?
A: Yes. The UNI2401 accepts 200–240V input and is UL/cUL listed, making it suitable for North American 208V/240V single or three-phase supplies.
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Contact: [email protected] | +0086 19859288691
