Err5
Com RJ45 Fault
Schindler · Altivar 212 Variable Frequency Drive
What does Err5 mean?
This fault indicates a serial communication error over the RJ45 connection of the Altivar 212 drive, potentially due to issues with network devices, cabling, or communication settings.
Common Causes
- Serial communication error on the RJ45 port.
- Faulty network control devices or communication cables.
- Incorrect setting of communication timeout parameter F803 ([Com. time out]).
- Problem with the remote graphic display option cable.
- Incorrect setting of network protocol parameter F829 ([Network protocol]).
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check all RJ45 network control devices and communication cables for integrity.
- 2
Verify the setting of parameter F803 ([Com. time out]) for proper timeout duration.
- 3
Inspect the remote graphic display option cable for damage or loose connections.
- 4
Check the setting of parameter F829 ([Network protocol]) to ensure it matches the network type.
Verified technical data. Last updated: March 2026
Related Faults
Source: Schindler Altivar 212 Variable Frequency Drive