Lenze 00409981 EMF2172IB CAN System Bus Communication Module
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Product Information
The Lenze 00409981 EMF2172IB is a CAN system bus communication module designed for Lenze 8200 vector frequency inverters ranging from 0.25 kW to 90 kW and Lenze 9300 series servo inverters. Inserting directly into the Function Interface (FIF) slot of the host drive, this compact interface operates using an internal 5 V DC supply provided by the host inverter, eliminating the need for external auxiliary power wiring. It enables real-time peer-to-peer and master-slave fieldbus networking across complex industrial control architectures using a pluggable screw terminal block connection.
Putting a replacement EMF2172IB into service requires setting the hardware configuration to match the original setup before restoring system power. Onboard DIP switches enable manual setting of the node address from 1 to 63 as well as selection of standard transmission speeds, including 20, 50, 125, 250, and 500 kbit/s. An integrated, switchable 120-ohm termination resistor simplifies end-of-line node setup without external termination hardware. Parameter alignment and network monitoring can be performed via Lenze Global Drive Control (GDC) software or the Operating Module Keypad XT (EMF2102IB). ABC Industrial Parts provides tested replacement units to support rapid service restoration for existing drive installations.
Diagnostic evaluation on the front panel is provided by two status LEDs: a green CAN-RUN indicator and a red CAN-ERR indicator. The CAN-RUN LED signals pre-operational, operational, or stopped states, while the CAN-ERR LED identifies bus warnings, frame errors, or bus-off states. The host drive records fieldbus fault conditions under specific error codes such as CE0 (C0910), CE1, CE2, and CE3, indicating cable interruptions, monitoring timeouts, or excessive error frames. Initial troubleshooting should focus on checking terminal connections, verifying DIP switch address alignment, confirming baud rate matching, and ensuring proper 120-ohm termination. When internal transceiver or board-level failures persist, acquiring a replacement module through ABC Industrial Parts provides a direct route back to full system operation.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00409981 |
| Model / Type | EMF2172IB |
| Component Type | Communication Module |
| Product Family | 8200 vector / 9300 |
| Protocol | Lenze System Bus / CANopen (CAN 2.0A) |
| Supply Voltage | 5 V DC (Internal via FIF slot) |
| Maximum Baud Rate | 500 kbit/s |
| Supported Baud Rates | 20, 50, 125, 250, 500 kbit/s |
| Maximum Node Address | 63 |
| Galvanic Isolation | Yes |
| Bus Termination | Integrated 120 Ohm (Switchable) |
| Connector Type | Pluggable screw terminal block |
| Lifecycle Status | Discontinued |
Programming and Configuration
Configuration of the Lenze 00409981 EMF2172IB module combines hardware adjustments with host drive software parameterization. Onboard DIP switches allow technicians to define the CAN node address between 1 and 63 and set the transmission speed (20, 50, 125, 250, or 500 kbit/s) without requiring initial software tools.
For complete parameter access, system setup, and online diagnostics, the module connects to Lenze Global Drive Control (GDC) software. Key fieldbus parameters within the host drive, such as C0359 and C0361, allow engineers to align process data monitoring and network behavior with the central system controller.
Communication and System Integration
Utilizing CAN 2.0A protocol operations, the EMF2172IB integrates Lenze 8200 vector and 9300 drives into CANopen and Lenze System Bus networks. It supports peer-to-peer drive synchronization and master-slave fieldbus topologies, making it suitable for synchronized multi-axis operations in packaging, material handling, textile, and automotive assembly lines.
Network wiring attaches via a pluggable screw terminal block. Electrical isolation protects connected drive logic from high-voltage motor line interference and ground loops. An integrated 120-ohm bus termination resistor can be switched on or off directly on the module, simplifying wiring layout at network endpoints.
Diagnostics and Status Indication
Real-time visual monitoring is provided by two LEDs located on the front of the EMF2172IB module. The green CAN-RUN LED reflects the operational status of the CAN node, distinguishing between operational, pre-operational, and stopped conditions. The red CAN-ERR LED highlights bus warnings, frame collisions, and bus-off fault conditions.
In addition to physical indicators, diagnostic monitoring can be performed through host drive status parameters using an Operating Module Keypad XT (EMF2102IB) or Lenze Global Drive Control (GDC) software to review telegram counters and communication error flags.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| CAN-RUN | Green - Blinking / Solid / Off | Blinking = Pre-Operational state, Solid = Operational state, Off = Stopped or No power |
| CAN-ERR | Red - Blinking / Solid / Off | Blinking = Bus Warning / Frame Errors, Solid = Bus Off / Hardware Error, Off = Normal operation |
Replacement and Spare Part Considerations
As the Lenze EMF2172IB is a discontinued component, maintaining machinery requires swapping in verified replacement modules. When replacing a unit, isolate the drive from main power before inserting the replacement into the Function Interface (FIF) slot.
Before applying power, replicate the DIP switch configuration from the original unit to match the Node ID (1–63) and baud rate (20–500 kbit/s). Confirm whether the internal 120-ohm bus termination resistor switch should be enabled or disabled based on the unit's position in the CAN bus segment.
Once mechanically seated and wired, verify that host parameters align with network master requirements. Utilizing GDC software allows maintenance personnel to verify data exchange prior to resuming full production.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| CE0 / C0910 | Communication Error System Bus (CAN) | Communication failure or telegram interruption on the CAN system bus interface | Bus cable interrupted, incorrect baud rate setting, duplicate node address, bus termination missing, or external noise intervention | Check wiring and terminal connections, verify matching baud rate settings on all nodes, verify DIP switch Node IDs, and ensure 120 Ohm termination resistors are enabled at both ends of the network |
| CE1 | CAN Inverted CAN-Object Monitoring / Time-out | Process data monitoring time elapsed without receiving expected CAN object | Master controller stopped sending cyclic process data or network connection was interrupted | Check master PLC or host status, verify CAN network cycle times, and inspect timeout parameters |
| CE2 | CAN Bus Off Fault | CAN controller entered Bus-Off state due to excessive error frames | Severe electromagnetic interference, incorrect bit rate, bad ground connection, or defective CAN transceiver module | Check bus shielding and grounding, inspect CAN bus cabling and terminations. If persistent across multiple drives, inspect or replace the EMF2172IB communication module. |
| CE3 | System Bus Warning Limit Exceeded | CAN error counter exceeded warning threshold | Occasional frame collisions, improper line shielding, or high noise environment | Inspect cabling connections and shielding; route network wiring away from high-voltage motor cables |
Frequently Asked Questions
Which drive series are compatible with the Lenze 00409981 EMF2172IB module?
The EMF2172IB module plugs directly into the Function Interface (FIF) slot of Lenze 8200 vector frequency inverters (0.25 kW to 90 kW) and Lenze 9300 series servo inverters.
How are the CAN node address and transmission speed configured on the EMF2172IB?
Node addresses (1 to 63) and baud rates (20, 50, 125, 250, or 500 kbit/s) are configured directly using onboard DIP switches on the module, or through host drive parameters.
Does the EMF2172IB require an external termination resistor at the end of a bus line?
No, the module includes a built-in switchable 120-ohm bus termination resistor, which can be toggled on for nodes located at either physical end of the CAN network.
What do the CAN-RUN and CAN-ERR LEDs signal during operation?
The green CAN-RUN LED indicates pre-operational (blinking), operational (solid), or stopped/unpowered (off) states. The red CAN-ERR LED indicates bus warnings or frame errors (blinking), bus-off or hardware faults (solid), or normal operation (off).
How do you troubleshoot a CE0 / C0910 communication error fault?
Inspect fieldbus terminal block connections, verify DIP switch node address and baud rate alignment across all network nodes, and ensure 120-ohm termination is enabled at both ends of the bus.
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