EMF2181IB Lenze 8200-series ModemCAN Communication Module

Product Overview

The EMF2181IB (EMF2181IB) is a specialized ModemCAN communication interface designed for the Lenze 8200 Vector series of frequency inverters. This module enables robust, long-distance data exchange and remote parameterization capabilities, allowing the inverter to interface with modem-based networks or CAN-based system buses. In industrial sectors such as remote water management, distributed HVAC systems, and large-scale agricultural automation, the EMF2181IB acts as a critical bridge for telemetry and centralized control. Its wide operating temperature range from -10 to +70 Celsius ensures stable performance in outdoor enclosures or non-climate-controlled environments. Although classified as an obsolete part since 2017, this module remains an essential component for the maintenance and repair of legacy 8200 Vector installations, providing a reliable path for system connectivity without requiring a full drive upgrade.

Technical Configuration

The EMF2181IB is engineered for versatility and ease of integration, featuring a 9-pin dual-port configuration that supports daisy-chaining or multi-node network topologies. The hardware is designed for standard DIN rail mounting, separate from the drive if necessary, and requires an external power supply of 18-30 VDC at 100 mA. This independent power architecture ensures that communication remains active even if the main inverter power is disconnected for maintenance. The module facilitates the translation of internal drive parameters into CAN-compatible data packets, supporting high-speed diagnostics and real-time control adjustments. Its compact 7.60 x 12.70 x 2.50 cm footprint and ruggedized build quality reflect Lenze's commitment to industrial-grade communication reliability.

Technical Specifications

Technical FAQs

What is the primary function of the "ModemCAN" interface on the EMF2181IB?

The ModemCAN interface is specifically designed to allow 8200 Vector drives to communicate over distances or through modem links that standard fieldbus cables cannot reach. It provides a standardized CAN protocol layer optimized for modem transmission speeds and stability.

Can this module be mounted directly onto the 8200 Vector inverter?

Unlike standard plug-in function modules, the EMF2181IB is a DIN rail-mounted unit. It connects to the inverter via a communication cable, allowing it to be positioned optimally within the control cabinet for wiring convenience and thermal management.

Is this module compatible with the 8200 motec or 8400 series?

No. The EMF2181IB is specifically tuned for the 8200 Vector series firmware and hardware architecture. For the 8400 series, different communication modules (such as the E84AYC... series) must be utilized.

Engineering & Installation Guide

For successful deployment of the EMF2181IB, ensure the 18-30 VDC power supply is stable and free from significant ripple, as voltage fluctuations can cause communication timeouts. Use shielded twisted-pair cabling for the CAN/Modem ports to prevent electromagnetic interference from the high-power inverter output cables. When mounting on a DIN rail, ensure there is sufficient clearance for the 9-pin connectors to avoid mechanical stress on the ports. In environments subject to extreme temperatures (approaching +70 deg C), ensure the cabinet has adequate ventilation, as excessive heat can degrade the reliability of the optocouplers used for galvanic isolation. If the module is the last node in a CAN network, ensure a 120-ohm termination resistor is correctly installed across the data lines to prevent signal reflections.