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F7490 Siemens Drive Fault ((link)) Jun 2026

After resolving the fault, implement these long-term strategies:

The drive receives an "OFF" command (like OFF1, OFF2, or OFF3) or the "Enable Operating" signal is lost while the motor is moving. f7490 siemens drive fault

The primary cause of F7490 is the removal of the enable signals while the drive is active. This typically places the drive in a "switching on inhibited" state. Common triggers include: Withdrawal of Enable Signals : Loss of signals such as OFF1, OFF2, OFF3 Enable Operation during a move. Secondary Fault Triggering Common triggers include: Withdrawal of Enable Signals :

To troubleshoot and diagnose the F7490 Siemens drive fault, follow these steps: Here are some options:

Leave a comment with your specific fault value (r0949) and drive model, or contact an authorized Siemens drive service center.

If the F7490 Siemens drive fault cannot be cleared by troubleshooting and resetting the drive, it may be necessary to repair or replace the drive. Here are some options: