Lenze 00394782 EMF2171IB InterBus Communication Module
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Product Information
The Lenze 00394782 EMF2171IB is an InterBus fieldbus communication module belonging to the Lenze 2100 Series architecture. Designed as a dedicated function module, it plugs directly into the Function Information Interface (FIF) slot of Lenze 8200 vector frequency inverters and Lenze 9300 servo drives. By mounting directly into the host interface, the card establishes direct fieldbus integration without requiring external gateways, bus translators, or additional mounting hardware across automotive manufacturing, material handling, conveying, packaging, and converting applications.
Physical network integration is achieved using dual D-Sub 9-pin connectors (male input and female output), enabling integration into an InterBus remote bus loop topology operating at 500 kbps. The card handles both cyclic process data for fast dynamic drive control and acyclic PCP parameter channels for remote parameterization and drive monitoring. When commissioning a replacement module, hardware address DIP switches on the unit must be set to match the node configuration expected by the master PLC. Drive parameters can be configured using Lenze Global Drive Control (GDC) software, an XT/PT operating keypad, or the InterBus CMD Configurator. Maintenance teams needing a replacement or pre-configured spare unit can rely on ABC Industrial Parts to restore fieldbus communication.
Onboard status LEDs deliver real-time visual feedback, including Bus Active (BA), Remote Bus Disabled (RD), Cable Control (CC), Transmit/Receive (TR), and Hardware Failure / Error (FAIL / ERR). System diagnostic parameters can also be viewed via an attached keypad, GDC software, or the InterBus CMD Diagnostic Tool. Fault codes such as CE0 for FIF communication errors, CE1 for process data monitoring, CE2 for process data timeouts, and CE3 for PCP parameter channel issues assist in rapid isolation of fieldbus or interface faults. When a permanent FAIL / ERR LED or H10 fault code occurs, it points to an internal microprocessor or printed circuit board failure. Because internal board defects are not field-serviceable, replacing the unit with a tested spare from ABC Industrial Parts provides the quickest path back to full production.
Technical Specifications
| Manufacturer | Lenze |
| Part number | 00394782 |
| Model / Type | EMF2171IB |
| Product family | 2100 Series |
| Component type | Communication Module |
| Fieldbus protocol | INTERBUS |
| Baud rate | 500 kbps |
| Input connector | D-Sub 9-pin male |
| Output connector | D-Sub 9-pin female |
| Drive host interface | FIF (Function Information Interface) |
| Compatible drives | Lenze 8200 Vector, Lenze 9300 Servo |
| Lifecycle status | Discontinued |
Programming and Configuration
Configuring the Lenze 00394782 EMF2171IB function module involves aligning hardware addresses and parameter channels with the master controller. System commissioning and parameter backup can be performed online using Lenze Global Drive Control (GDC) software, an XT/PT operating keypad plugged directly into the host drive, or the InterBus CMD Configurator tool. Physical hardware addressing on the InterBus network loop is determined by setting the DIP switches located directly on the module board prior to operation.
For remote monitoring and parameter adjustments, the module utilizes the InterBus PCP parameter channel. When deploying a replacement card into an existing control cabinet, technicians must mirror the physical DIP switch configuration of the original unit and verify parameter transfer via GDC or the drive keypad. Correct parameter addressing within the InterBus master program ensures reliable handshake communication and prevents PCP channel timeout errors.
Communication and System Integration
The EMF2171IB communication module connects Lenze 8200 vector frequency inverters and Lenze 9300 servo drives directly to InterBus network architectures operating at a standard transmission speed of 500 kbps. The module features two primary physical interfaces: a 9-pin male D-Sub connector for incoming remote bus segment connections and a 9-pin female D-Sub connector for outgoing remote bus loop propagation.
Host integration occurs through the integrated Function Information Interface (FIF) header slot on the drive main board. By utilizing the internal FIF header, the module supports simultaneous high-speed cyclic process data transmission for motor control and dynamic commands, alongside acyclic PCP parameter transfers for drive diagnostics and parameter changes, without requiring external gateways or bus translators.
Diagnostics and Status Indication
The Lenze EMF2171IB provides hardware and network diagnostics through integrated status LEDs located on the front faceplate. Additional diagnostic data can be accessed using drive keypad parameters, online monitoring within Lenze Global Drive Control (GDC) software, or through the InterBus CMD Diagnostic Tool.
Visual LED indications allow technicians to quickly confirm active bus status, physical cable integrity, data transfer state, or internal hardware faults.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| BA | Bus Active — InterBus communication is established and active. | |
| RD | Remote Bus Disabled — InterBus remote segment is disabled or cable disconnected. | |
| CC | Cable Control — Physical layer connection test passed. | |
| TR | Transmit/Receive — Transmitting or receiving process/parameter data. | |
| FAIL / ERR | Hardware failure or initialization error. Permanent illumination indicates an internal hardware defect that is not field-serviceable and requires module replacement. |
Replacement and Spare Part Considerations
Because the Lenze 00394782 EMF2171IB is a discontinued product, maintaining direct-fit replacement stock is essential for avoiding extended machine downtime on older production lines. When installing a spare unit, the host inverter or servo drive must be isolated from power before seating the card onto the internal FIF interface header.
Before restoring power, verify that the physical DIP switches on the spare EMF2171IB match the hardware node address set on the original module. Once installed, confirm that communication is established via the BA and CC status LEDs and verify parameter synchronization using an XT/PT keypad or Lenze GDC software.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| CE0 | Communication Fault (FIF) | Communication failure between Lenze drive main board and EMF2171IB function module. | Function module improperly inserted, corroded pin header, or defective function module. | Check module seating on FIF interface header; power cycle drive; if fault persists, replace EMF2171IB module. |
| CE1 | Process Data Monitoring Fault | InterBus process data frame transfer timeout or connection loss. | InterBus cable damaged, master controller stopped, or physical bus interruption. | Check InterBus cabling, connectors, master PLC status, and termination. |
| CE2 | Process Data Timeout | Time-out during cyclic process data reception over InterBus. | Excessive bus cycle time or frame dropped by InterBus master. | Verify InterBus configuration parameters and master transmission rate. |
| CE3 | PCP Parameter Channel Error | Error during acyclic parameter data transfer via PCP channel. | Invalid parameter index, invalid data length, or parameter protocol handshake failure. | Check parameter addressing in the InterBus master program. |
| H10 | Function Module Hardware Error | Internal hardware component or microprocessor failure inside the EMF2171IB module. | Component failure on the internal PCB, corrupt module firmware. | Internal hardware fault — power cycle drive; if unrecovered, replace the EMF2171IB module. |
Frequently Asked Questions
How is the physical hardware address set on the Lenze EMF2171IB module?
The physical network node address is set manually on the module using onboard DIP switches prior to installing the unit into the drive.
Which Lenze drive series are compatible with the 00394782 EMF2171IB module?
The EMF2171IB plugs directly into the Function Information Interface (FIF) slot of Lenze 8200 vector frequency inverters and Lenze 9300 servo drives.
What software tools can be used to manage parameters and diagnose the module?
Drive parameters and communication settings can be configured using Lenze Global Drive Control (GDC) software, an XT/PT operating keypad, or the InterBus CMD Configurator and Diagnostic Tool.
What does a permanent FAIL / ERR status LED mean on the EMF2171IB?
Permanent illumination of the FAIL / ERR LED indicates an unrecoverable internal hardware or microprocessor error. Power cycle the host drive, and if the indication remains, the module must be replaced.
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