Lenze E84AVSCE3712SX0 8400 Baseline Variable Frequency Drive (0.37 kW)

Product Overview

The E84AVSCE3712SX0 (E84AVSCE 3712SX0) is a compact and efficient variable frequency drive (VFD) from Lenze’s 8400 Baseline series. Rated at 0.37 kW, this drive is designed to provide reliable speed control for asynchronous motors in basic industrial applications. A key feature of this specific model is its integrated interference suppression measures, which simplify installation by reducing the need for external EMC filters. Whether utilized in conveyor systems, fan drives, or pump applications, the E84AVSCE3712SX0 offers a versatile power stage compatible with both 3-phase 230V and 3-phase 400/500V mains connections. Its small form factor and "Active" product phase make it a go-to solution for modern, space-conscious control cabinet designs.

Technical Configuration

The 8400 Baseline architecture focuses on "Ease of Use" without sacrificing industrial robustness. The E84AVSCE3712SX0 utilizes a sophisticated V/f control (linear or square-law) and sensorless vector control to ensure high starting torque and smooth motor operation. The "SX0" designation typically refers to a standard functional package that includes integrated shielding and a basic I/O set for digital and analog control. The drive is engineered for high energy efficiency and includes a built-in brake chopper (depending on specific sub-configuration) to handle regenerative energy during deceleration. With a depth of only 14 cm and a weight of 1.2 kg, it is one of the most power-dense units in its class.

Technical Specifications

Technical FAQs

Does this drive require an external EMC filter for CE compliance?

No. The "Integrated Interference Suppression" means the drive already contains the necessary filtering to meet standard industrial EMC requirements. This saves significant space on the DIN rail and reduces wiring complexity.

Can I use the E84AVSCE3712SX0 with a 3-phase 230V supply?

Yes. This module is uniquely versatile, supporting both 230V and 400/500V 3-phase inputs. This makes it an ideal "universal" spare part for facilities with varying voltage standards across different production lines.

How do I parameterize this 8400 Baseline drive?

The drive can be configured using the Lenze L-force Engineer software via a USB-to-CAN diagnostic adapter, or through the pluggable keypad module (optional accessory) for quick on-site adjustments.

Engineering & Installation Guide

• Integrated Shielding: To take full advantage of the integrated interference suppression, ensure the motor cable shield is clamped directly to the drive’s grounding plate using a metal shield clip. This ensures high-frequency noise is shunted back to the DC bus rather than radiating into the cabinet.

• Mounting and Cooling: The 8400 Baseline series supports side-by-side mounting with zero clearance between drives if the ambient temperature is below 40°C. However, maintain 100 mm of vertical clearance for the convection cooling system to work effectively.

• Circuit Protection: When connecting to a 400V supply, use Type gG/gL fuses or a suitable motor protection switch. Because this is a 0.37 kW drive, ensure the overcurrent protection is scaled correctly to protect the small-gauge wiring typically used for low-power motors.