SPMD1403 Emerson Control Techniques SPMD 1403 Inverter AC Drive

Product Overview

The SPMD1403 by Emerson (Control Techniques) is a high-performance modular AC drive engineered for large-scale industrial power applications. Delivering a continuous current of 246A and supporting motors up to 132 kW (200 HP), this inverter is a core component of the Unidrive SP modular system. It provides exceptional flexibility by supporting multiple motor types—including induction and permanent magnet synchronous motors—while maintaining a high efficiency rating of over 98% to reduce operational energy costs.

Technical Specifications

Engineering Advantages

The SPMD1403 hardware architecture is built for versatility, allowing for V/f, open-loop vector, and closed-loop vector control modes to meet diverse process requirements. Its modular design simplifies the construction of high-power drive systems, while the integrated dynamic braking chopper facilitates rapid deceleration for high-inertia loads. With a protection rating of IP20 and advanced thermal management, it ensures reliable operation in temperatures up to +50°C, making it ideal for heavy industries such as metals, plastics, and material handling.

Technical FAQs

Q1: What motor types can the SPMD1403 control?
A1: This drive is highly versatile, supporting standard Induction Motors (IM), Permanent Magnet Synchronous Motors (PMSM), and high-performance Servo Motors.

Q2: Is the switching frequency adjustable?
A2: Yes, the switching frequency is adjustable between 3 kHz and 16 kHz, allowing engineers to balance thermal performance with acoustic noise reduction.

Q3: How does the drive handle overvoltage conditions?
A3: The SPMD1403 includes comprehensive protection features that trigger safe shutdowns during overvoltage, undervoltage, or short-circuit events to protect the drive hardware.