E84AVSCE3712SX0 - Frequency Converter - LENZE

Lenze 8400 StateLine E84AVSCE3712SX0, frequency drive for reliable control of asynchronous motors

The frequency drive LENZE E84AVSCE3712SX0 is part of the 8400 StateLine series, a proven reference for standard drives in industrial automation. Designed to drive three-phase asynchronous motors, it meets speed control requirements for conveyor lines, handling machines and intralogistics systems. The 8400 StateLine range focuses on efficient energy conversion and process stability, with a clear architecture, built-in protection functions and streamlined commissioning. According to the product documentation, the supply is typically three-phase 400 V and the designation 3712 refers to a low-power bracket, indicating a natural fit for small drive motors. The unit easily integrates with programmable controller architectures via its I/Os and provides robust open-loop speed control for low to medium complexity applications.

Operational benefits for maintenance and operations

• Motor speed stability – Open-loop control with an analog setpoint delivers consistent speed across a wide operating range, useful for evening out conveyor cadences and reducing process variability.
• Fast commissioning – Adjustable acceleration and deceleration ramps, combined with standard logic inputs, make it easy to adapt the drive profile to a machine’s mechanical constraints without complex tooling.
• Energy efficiency – Load-adaptive frequency control, a characteristic of the 8400 StateLine family, helps optimise electrical consumption compared with fixed-speed drives, directly impacting operating costs.
• Integrated protection – Standard features of the series, including motor thermal monitoring and LED status indication, provide immediate local diagnostics and reduce the risk of damage from overloads or application faults.
• Automation integration – With digital inputs for local commands and an analog speed setpoint, the drive integrates simply with a programmable controller. Depending on the 8400 variants, fieldbuses such as CANopen, PROFIBUS or PROFINET may be available, ensuring scalability of installations.

Technical characteristics of the 8400 StateLine range

The Lenze 8400 StateLine family is designed for general-purpose drives where robustness and simplicity are priorities. On this basis, the E84AVSCE3712SX0 model converts a typical 3 x 400 V supply to a variable-frequency three-phase output to adjust the speed of an asynchronous motor according to the setpoint. The series provides logic inputs for Start, Stop and direction control, as well as an analog input for the speed setpoint, enabling stable and predictable open-loop control for standard loads. Acceleration and deceleration ramps are configurable to control mechanical stress and limit jolts on transmissions. LED status indication simplifies identification of service modes and common faults. For protection, motor thermal monitoring and basic safety functions of the range minimise the risk of overheating and overload. The code 3712 in the reference E84AVSCE3712SX0 corresponds, within the 8400 family, to a low-power bracket, generally around 0.37 kW for nearby references, suited to small drives. The suffix SX0 identifies the variant equipment within the E84AVSC family, notably in terms of I/O and communication options, while the main function remains that of a 8400 StateLine drive intended for standard applications.

Target uses and application environments

This drive targets conveyors, handling machines and, more broadly, intralogistics systems where simple and reliable speed control is required. It is suitable for feed, indexing or transfer stations on assembly lines, roller drives in packaging and auxiliary mechanisms of special machines. In these contexts, the combination of an analog speed control, configurable ramps and integrated protections ensures controlled operation while allowing direct interfacing with the site’s digital control architecture and programmable controller.

Technical differentiation and service assurances

The Lenze 8400 StateLine series benefits from a large installed base and mature documentation, factors that support long-term maintenance. The E84AVSCE3712SX0 variant follows this continuity approach, with a coherent parameterisation philosophy and features focused on machine availability. Standard Exchange Industry complements this with a supply and support offer geared to production: availability as reconditioned supply or standard exchange, repair when appropriate, bench testing, and shipping within 24-72 h to over 120 countries. Services come with a warranty according to the chosen service level to secure restart and asset longevity. For specific bus communication needs, verifying the hardware variant identified by the suffix is recommended before integration.

You are managing obsolescence or a line stop related to a low-power drive, notably on a conveyor or internal handling station. The Lenze 8400 StateLine E84AVSCE3712SX0 provides a direct, pragmatic route to restore stable speed control, with simple wiring via I/Os, quick commissioning using an analog setpoint and the assurance of proven protection functions. Contact our technical teams to confirm the electrical and functional compatibility of this variant with your motor and automation architecture, and benefit from a solution delivered in short lead times to secure your operational availability.