Lenze 00406796 E82ZBC System Bus CAN Module
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Product Information
The Lenze 00406796 E82ZBC is a dedicated System Bus CAN communication module engineered for Lenze 8200 vector and 8200 motec frequency inverters within the 8200 Series Accessories line. Operating as a direct plug-in option card, it inserts straight into the inverter host Function Interface (FIF) slot and draws its 5 V DC operating power internally from the drive. This design provides high-speed fieldbus connectivity for multi-drive speed synchronization and decentralized process control in industrial machinery such as conveyor systems, packaging lines, textile machinery, and automotive production facilities.
Interfacing with the network is accomplished via a pluggable screw terminal block supporting CANH, CANL, and CAN_GND shielding lines. Commissioning a replacement unit requires configuring the onboard hardware DIP switches to match the node address and transmission baud rate (from 10 kbit/s up to 1000 kbit/s) of the original unit, or assigning parameters through internal drive codes or Lenze Global Drive Control (GDC) software. Because communication parameters and node addresses dictate how the host drive responds on the network, matching these switch positions and drive parameter configurations is required before returning the machine to production. ABC Industrial Parts can assist in providing fully tested replacement modules to restore original drive network operations quickly.
Operational status is provided on the front panel via a green RUN LED and a red ERR LED, indicating active CAN communication, pre-operational states, warnings, and Bus-Off conditions. System errors are also surfaced directly through the host drive as fault codes CE0 through CE4, signaling conditions such as CAN time-outs, receive/transmit buffer overflows, or physical bus-off states. First-line troubleshooting should include checking line termination resistors (120 Ohm), shield grounding, baud rate settings, and cable continuity across CANH and CANL lines. If external wiring and bus termination are verified intact but a persistent bus-off error or hardware fault remains, internal module failure is likely, where acquiring a tested exchange unit from ABC Industrial Parts offers the most direct path to minimize machine downtime.
Technical Specifications
| Manufacturer | Lenze |
| Part Number | 00406796 |
| Model / Type | E82ZBC |
| Component Type | Communication Module |
| Product Family | 8200 Series Accessories |
| Supply Voltage | 5 V DC |
| Maximum Baud Rate | 1000 kbit/s |
| Minimum Baud Rate | 10 kbit/s |
| Maximum Network Nodes | 63 |
| Supported Protocols | CAN 2.0B / CANopen |
| Mounting Type | Direct Plug-in via FIF Slot |
| Network Connector Type | Pluggable Screw Terminal Block |
Programming and Configuration
The Lenze 00406796 E82ZBC module allows flexible network parameter setup either through physical hardware controls or host software settings. Onboard hardware DIP switches enable technicians to assign the CAN node address for up to 63 participants on a single network segment and select transmission speeds without requiring external programming tools during initial installation.
For software-based configuration, the module interfaces with Lenze Global Drive Control (GDC) engineering software or an optional Lenze 8200 Keypad XT (E82ZBC100 / E82ZBK). Through GDC, operators can manage drive diagnostic monitors, adjust System Bus parameter codes, and optimize CAN message cycle times across integrated 8200 vector or motec drive systems.
Communication and System Integration
Built on CAN 2.0B and CANopen specifications, the E82ZBC System Bus module provides deterministic fieldbus connectivity between host inverters and higher-level automation systems. The card connects directly into the drive Function Interface (FIF) slot, which supplies internal 5 V DC power and establishes the physical communication backplane to the inverter CPU.
Field connection is made using a removable pluggable screw terminal block supporting CANH, CANL, and CAN_GND lines for shield grounding. Supporting network speeds from 10 kbit/s to 1000 kbit/s across up to 63 interconnected nodes, the module facilitates dynamic speed synchronization and real-time parameter transfer in complex multi-drive applications.
Diagnostics and Status Indication
Visual operational feedback is provided via two LEDs located on the front panel of the E82ZBC module. The green RUN LED signals active operational status or pre-operational states, while the red ERR LED indicates warnings, CAN error passive conditions, or a physical Bus Off status.
In addition to hardware indicators, full network state monitoring is accessible through host drive parameters and the Lenze Global Drive Control (GDC) diagnostic monitor software.
Status LED Indicators
| LED | Color/Status | Meaning |
|---|---|---|
| RUN | Green - Solid / Blinking | Solid: System Bus operational / active CAN communication. Blinking: Pre-operational state. |
| ERR | Red - Solid / Blinking | Solid: Bus Off condition or internal interface error. Blinking: Warning / CAN error passive state. |
Replacement and Spare Part Considerations
When swapping a damaged or faulty Lenze 00406796 E82ZBC module, ensure main power to the frequency inverter is disconnected prior to removing or seating the card into the FIF slot. Set the hardware DIP switches on the new module to match the exact node address and baud rate settings of the previous unit.
Ensure that 120 Ohm bus termination resistors are correctly in place at both physical ends of the CAN network line. If node configuration was originally implemented via drive software parameter codes rather than DIP switches, reconnect using Global Drive Control (GDC) or an 8200 Keypad XT to confirm parameter parity before putting the machine back online.
Error Codes & Fault Codes
The following error codes may be displayed during operation or diagnostics:
| Code | Name | Description | Possible Cause | Recommended Action |
|---|---|---|---|---|
| CE0 | Communication Error 0 (CAN Time-out) | System bus communication time-out or loss of telegram reception. | Bus line interrupted, node disconnected, or incorrect baud rate. | Check CAN bus wiring, termination resistors (120 Ohm), baud rate configuration, and master controller operation. |
| CE1 | Communication Error 1 (CAN Error Passive) | System bus error counter exceeded warning threshold (error passive state). | High noise level, missing bus termination, or mismatched baud rate. | Verify shield grounding, line impedance, termination resistors, and physical cable integrity. |
| CE2 | Communication Error 2 (CAN Transmit Buffer Overflow) | System bus transmit queue overflow. | Bus load too high, CAN bus state is Bus-Off, or no other node acknowledging telegrams. | Check bus topology, ensure at least one other operational node is present on the bus, verify baud rate. |
| CE3 | Communication Error 3 (CAN Receive Buffer Overflow) | System bus receive queue overflow. | Drive CPU overwhelmed by excessive broadcast or high-frequency CAN messages. | Optimize CAN message cycle times and filter settings in system configuration. |
| CE4 | Communication Error 4 (CAN Bus Off) | System bus physical controller entered Bus-Off state due to excessive transmission errors. | Short circuit on CAN_H / CAN_L lines, reversed polarity, severe EMC interference, or defective CAN module. | Inspect cable and plug connections for shorts or reversed lines. If wiring is verified correct and error persists immediately upon power-up, replace module. |
Frequently Asked Questions
Which drive series are compatible with the Lenze 00406796 E82ZBC module?
The E82ZBC module is compatible with Lenze 8200 vector and Lenze 8200 motec frequency inverters by inserting directly into the drive Function Interface (FIF) slot.
Does the E82ZBC module require an external power supply?
No, the module receives its required 5 V DC operating voltage internally from the host inverter via the FIF slot connector.
How are node address and baud rate set on the module?
Settings can be configured hardware-wise using the onboard DIP switches on the module or through software parameters using Lenze Global Drive Control (GDC) or an 8200 Keypad XT.
What transmission speeds does the Lenze E82ZBC support?
The module supports CAN network transmission speeds ranging from 10 kbit/s up to 1000 kbit/s for up to 63 connected network nodes.
What causes a CE4 error code on the drive?
A CE4 fault indicates a CAN Bus Off state caused by severe transmission errors, short circuits on CANH/CANL lines, reversed line polarity, strong EMC interference, or a defective hardware module.
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