Emerson SP1406 – Universal Variable Speed AC Drive | SP Series Platform
Engineering Background
The Emerson SP1406 is part of Emerson’s SP Series universal variable speed AC drive platform, engineered for demanding industrial environments where precise motor speed control, energy efficiency, and system reliability are non-negotiable. Emerson’s Control Techniques heritage underpins the SP Series, delivering decades of proven drive technology to global OEM and end-user applications.
Product Positioning
The SP1406 targets procurement engineers and system integrators requiring a compact, versatile VFD capable of driving standard three-phase induction motors across a broad range of industrial sectors. Its universal design philosophy minimizes spare-parts inventory complexity while maximizing application flexibility — a critical advantage for multi-site industrial operations.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SP1406 |
| Brand / Manufacturer | Emerson (Control Techniques) |
| Series | SP Series Universal Variable Speed AC Drive |
| Drive Type | Variable Frequency Drive (VFD) / AC Drive |
| Output Frequency Range | 0 – 1000 Hz |
| Control Mode | V/Hz, Sensorless Vector, Closed-Loop Vector |
| Motor Compatibility | Standard 3-Phase AC Induction Motors |
| Protection Rating | IP20 (panel-mount) |
| Product Weight | 5.1 kg |
| Compliance | CE, UL (verify with datasheet) |
| Country of Origin | China / UK (verify with nameplate) |
Note: Full electrical ratings (voltage, current, kW/HP) are defined by the SP1406 variant suffix. Confirm with Emerson SP Series datasheet DS-SP-0001 or contact Konmask technical support for your specific application requirements.
Proven Application Environments
- Pump & Fan Control — HVAC systems, water treatment, cooling towers
- Conveyor & Material Handling — logistics, packaging, food processing lines
- Compressor Drives — industrial air and refrigeration compressors
- Machine Tool Spindles — CNC machining centers, grinding, milling
- Mixer & Agitator Drives — chemical processing, pharmaceutical manufacturing
- OEM Integration — embedded in custom automation panels and skid-mounted systems
Engineering Advantages
- Universal Platform — single drive family covers a wide power range, reducing spare-part SKU proliferation
- Advanced Vector Control — sensorless and closed-loop vector modes deliver high dynamic torque response without encoder feedback in many applications
- Wide Frequency Output — 0–1000 Hz output supports both standard and high-speed spindle motor applications
- Compact Panel-Mount Design — IP20 chassis optimized for MCC and control cabinet integration
- Fieldbus Ready — SP Series supports optional communication modules (PROFIBUS, DeviceNet, Modbus RTU, EtherNet/IP) for seamless PLC/DCS integration
- Energy Optimization — built-in energy-saving algorithms reduce motor energy consumption in variable-torque applications
System Architecture & Signal Flow
The SP1406 follows a standard AC drive architecture:
- Input Stage: Three-phase AC mains → EMC filter → rectifier bridge → DC bus
- DC Bus: Smoothing capacitor bank with dynamic braking resistor terminal (optional)
- Output Stage: IGBT-based PWM inverter → motor terminals (U/V/W)
- Control Board: DSP-based control with analog I/O (0–10 V, 4–20 mA), digital I/O, relay outputs, and keypad/RS485 interface
- Optional Comms Module: Slot-in fieldbus adapter for PLC/SCADA integration
Signal flow: Speed reference (analog/digital/fieldbus) → DSP control algorithm → PWM gate signals → IGBT switching → variable frequency/voltage output to motor.
Sourcing & Quality Verification
- All Emerson SP1406 units supplied by Konmask.com are sourced through verified industrial distribution channels
- Each unit undergoes incoming inspection: nameplate verification, packaging integrity check, and functional power-on test where applicable
- Genuine Emerson/Control Techniques holographic labels and serial numbers are verified against manufacturer records upon request
- Warranty: 12-month Konmask quality guarantee; manufacturer warranty terms apply per Emerson’s standard policy
- Certificates of conformity and test reports available upon request for critical infrastructure projects
Procurement Process
- Confirm Specification — verify the SP1406 suffix/variant matches your motor kW, input voltage, and application requirements
- Request Quote — contact [email protected] or call +0086 19859288691 for volume pricing and lead time
- Place Order — secure checkout via Konmask.com; B2B invoicing and wire transfer available
- Shipping — DHL / FedEx / sea freight options; export documentation (commercial invoice, packing list, CO) provided
- Technical Support — pre-sales application engineering and post-sales commissioning support available
Technical FAQ
Q: Is the SP1406 compatible with single-phase input?
A: The SP Series is designed for three-phase input. Single-phase operation is not recommended and may void warranty. Confirm input requirements with the SP1406 datasheet.
Q: Can the SP1406 control permanent magnet (PM) motors?
A: Standard SP Series firmware targets AC induction motors. PM motor support depends on firmware version — contact Konmask for confirmation.
Q: What fieldbus protocols are supported?
A: Via optional plug-in modules: PROFIBUS DP, DeviceNet, Modbus RTU (RS485 native), CANopen, EtherNet/IP. Confirm module availability for SP1406 frame size.
Q: Is a braking resistor included?
A: Dynamic braking transistor is typically built-in; external braking resistor is customer-supplied based on application deceleration requirements.
Q: What is the minimum order quantity?
A: Single units available. Volume discounts apply for orders of 5+ units. Contact us for project pricing.
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