Motor Control Solution – Control Techniques UNI2403 | Unidrive SP0 Series
Where This Product Is Used
The Control Techniques UNI2403 (Emerson Unidrive SP0) is a compact, high-performance AC variable speed drive engineered for demanding industrial motor control applications. Engineers specify this drive across a wide range of sectors:
- Conveyor & Material Handling: Precise speed regulation for belt conveyors, roller tables, and sortation systems in warehousing and logistics.
- Pump & Fan Control: Energy-saving variable-torque control for HVAC fans, cooling towers, and centrifugal pumps in building services and water treatment.
- Packaging Machinery: Synchronised multi-axis motion for filling, sealing, and labelling lines requiring tight speed matching.
- Textile & Printing: Smooth, low-ripple torque for winding/unwinding and tension control in web-handling equipment.
- Food & Beverage Processing: Hygienic-environment compatible drive for mixers, agitators, and dosing pumps.
- General Industrial Automation: OEM machine builders integrating compact drives into control panels where DIN-rail space is at a premium.
Technical Specifications
| Part Number / SKU | UNI2403 |
| Brand | Control Techniques (Emerson) |
| Series | Unidrive SP0 |
| Output Power | 0.75 kW (1.0 HP) |
| Input Voltage | 200 – 240 V AC, Single-phase / Three-phase |
| Output Voltage | 0 – 240 V AC, Three-phase |
| Output Current (Rated) | 4.3 A |
| Frequency Range | 0 – 1000 Hz |
| Control Mode | Open-loop V/Hz, Open-loop Vector, Closed-loop Vector, Servo |
| Communication | RS-485 (Modbus RTU); optional PROFIBUS, DeviceNet, CANopen via SM modules |
| Digital Inputs | 6 × programmable digital inputs |
| Analog Inputs | 2 × ±10 V / 0–20 mA |
| Relay Output | 1 × Form C relay |
| Protection Class | IP20 (panel-mount) |
| Ambient Temperature | 0 °C to +40 °C (derate above 40 °C) |
| Weight | 460 g |
| Dimensions (H × W × D) | Refer to Control Techniques Unidrive SP0 datasheet |
Why Engineers Specify This Model
- Compact Footprint: The SP0 frame size fits tight panel layouts without sacrificing performance — ideal for OEM machine builders.
- Multi-mode Control: Switches between V/Hz, open-loop vector, closed-loop vector, and servo modes from a single drive platform, reducing spare-parts inventory.
- Modular Expansion: SM option module slots allow fieldbus, encoder, and I/O expansion without replacing the drive.
- Auto-tune: Built-in motor auto-tune routine minimises commissioning time on new installations.
- Safe Torque Off (STO): Integrated SIL 2 / PLd safety function eliminates the need for external safety contactors in many applications.
- Energy Optimisation: Flux optimisation algorithm reduces motor losses at partial load — measurable energy savings in pump and fan applications.
Complete System Bill of Materials
For a fully operational Unidrive SP0 installation, consider the following complementary components:
- Line reactor / EMC filter (CT part: EMC-SP0-xxx) — required for CE compliance in residential environments
- Dynamic braking resistor — for applications with high-inertia loads or frequent deceleration
- SM-Keypad Plus — remote parameter display and copy unit
- SM-Applications module — onboard PLC for standalone operation
- SM-PROFIBUS / SM-DeviceNet / SM-CANopen — fieldbus communication modules
- Shielded motor cable (recommended ≤ 50 m for EMC compliance)
- 24 V DC auxiliary power supply — maintains control power during main supply interruption
Compliance & Industry Standards
- CE Marked — Low Voltage Directive (LVD) 2014/35/EU & EMC Directive 2014/30/EU
- UL Listed / cUL — UL 508C (Power Conversion Equipment)
- RoHS Compliant
- IEC 61800-5-1 (Adjustable Speed Electrical Power Drive Systems — Safety)
- IEC 61800-3 (EMC requirements for drive systems)
- EN ISO 13849-1 / IEC 62061 — STO function rated SIL 2 / PLd
Quality Assurance & Sourcing
All units supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes incoming inspection including:
- Visual inspection for physical damage and counterfeit indicators
- Label and serial number verification against manufacturer records
- Functional power-on test where applicable
- Original manufacturer packaging preserved where available
We supply new, surplus-new, and reconditioned units — condition is clearly stated on each listing. Reconditioned units carry a 90-day warranty; new units carry the full manufacturer warranty.
How to Source This Part
- Add to Cart — place your order directly on this page.
- Request a Quote — for volume orders (>5 units) or urgent requirements, email support@konmask.com for a dedicated quote within 4 business hours.
- Lead Time: In-stock units ship within 1–2 business days. Out-of-stock units: contact us for ETA.
- Export & Customs: We handle export documentation (commercial invoice, packing list, COO) for international shipments. HS Code: 8504.40 (static converters).
- Payment: T/T bank transfer, PayPal, and major credit cards accepted.
Application-Specific FAQ
Q: Can the UNI2403 run a single-phase motor?
A: No. The UNI2403 outputs three-phase power. It is designed to control three-phase induction or permanent-magnet motors up to 0.75 kW.
Q: Is the UNI2403 compatible with Modbus TCP/IP?
A: The base unit supports Modbus RTU over RS-485. Modbus TCP/IP requires an SM-Ethernet option module.
Q: What is the difference between UNI2403 and UNI2403-A?
A: The “-A” suffix typically denotes a revised hardware revision with minor component updates. Functionally and dimensionally they are interchangeable; always verify with the Control Techniques compatibility guide for your firmware version.
Q: Can I use this drive for a crane or hoist application?
A: Yes, with a dynamic braking resistor and closed-loop vector control mode. Ensure the STO wiring meets your local machinery safety standard.
Q: What spare parts should I stock alongside the UNI2403?
A: Recommended spares: internal DC bus capacitors (for drives >5 years old), cooling fan, and the SM option module matching your fieldbus.
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