CE1 Communication error at process data input object CAN1_IN
Lenze · 9300 Series
What does x062 mean?
A communication error has occurred with the process data input object CAN1_IN. This can be due to issues with the CAN bus, wiring, or incorrect data configuration. The monitoring time for this communication channel can be set with parameter C0357/1.
Common Causes
- Physical break or short in the CAN bus wiring connected to CAN1_IN port of the drive (e.g., terminals CAN_H, CAN_L).
- Incorrect CAN bus termination resistors (120 Ohm) missing or improperly placed at the ends of the CAN network segment.
- Duplicate CAN node ID (P5-04) assigned to the drive or another device on the CAN1 network, causing data collisions.
- Mismatch in CAN bus baud rate (P5-05) between the drive and the CAN master or other nodes on the network.
- Process data object (PDO) mapping or content configured incorrectly, preventing the drive from interpreting incoming data.
Repair Steps & Checklist
Click steps to track your progress.
- 1
1. Power down the drive, check the CAN bus wiring to CAN1_IN terminals for continuity and correct polarity (CAN_H, CAN_L) using a multimeter.
- 2
2. Measure resistance across CAN_H and CAN_L terminals at the extreme ends of the CAN bus network; it should be approximately 60 Ohms.
- 3
3. Verify the CAN node ID (P5-04) of the drive and all other devices on the CAN1 network for uniqueness.
- 4
4. Confirm the CAN bus baud rate (P5-05) setting on the drive matches the master controller's configuration.
- 5
5. Review the PDO mapping configuration for CAN1_IN in the drive's software to ensure expected data types and indices are correct.