Forced dynamis. required

What does A01699 mean?

The dynamisation timer (r9660) for safety functions has expired, requiring a new dynamisation test. This test verifies the integrity of the safety circuit, and without performing it, the safety functions may not be fully trusted, preventing safe operation and potentially leaving the machine in an unsafe state.

• The internal dynamisation timer (r9660) for safety functions (e.g., safe digital inputs) has reached its configured limit (P9660).
• The safety system requires periodic testing of redundant input channels (dynamisation) to detect latent faults, and this test has not been performed.
• Incorrect configuration of the dynamisation interval (P9660) making it too short for the application's operating cycles or maintenance schedule.
• Safety function inputs (e.g., F-DI signals) have not changed state within the required dynamisation interval, leading to a timeout.
• Loss of power or internal reset of the safety processor causing the dynamisation timer to expire prematurely.

Click steps to track your progress.

1. 1

   1. Initiate the dynamisation test by cycling the associated safety input signals (e.g., F-DI0, F-DI1) as required by the safety circuit design.

2. 2

   2. Verify parameter P9660 (Dynamisation time) to ensure the interval is appropriate for the application and the required safety integrity level.

3. 3

   3. If safety functions are controlled by an external safety PLC, check its program to ensure it is correctly managing the dynamisation cycles.

4. 4

   4. Review the drive's safety manual for specific instructions on performing the dynamisation test for the implemented safety functions.

5. 5

   5. Check the status of the safety inputs (e.g., F-DI0, F-DI1 at X150) to confirm they are physically changing state during the test procedure.