Forced dynamization necessary

What does F506 mean?

The DIAX04 SSE-03VRS drive's integrated safety functions require 'forced dynamization' for certain inputs, meaning the safety inputs must be periodically toggled to prove their functionality. This fault indicates that the required toggling has not occurred, implying a stuck input, bypass, or wiring issue. This is a safety integrity fault, as dormant errors cannot be detected.

• Safety input signals that require forced dynamization (e.g., for STO, SS1) are not being toggled periodically as configured.
• Wiring issue causing the safety input to appear permanently active or inactive to the DIAX04 SSE-03VRS drive.
• External safety device (e.g., contactor, relay) with auxiliary contacts stuck in one position.
• Incorrect configuration of the dynamization monitoring parameters in the DIAX04 SSE-03VRS drive.
• Internal fault within the DIAX04 SSE-03VRS drive's safety module monitoring dynamization.

Click steps to track your progress.

1. 1

   Identify the safety inputs requiring forced dynamization. Manually toggle the associated external safety devices (e.g., E-Stop, light curtain) to verify their switching action.

2. 2

   Inspect the wiring for the dynamized safety inputs to the DIAX04 SSE-03VRS drive for damage, shorts, or opens. Ensure proper connections.

3. 3

   Check the auxiliary contacts of any external safety relays or contactors used for dynamization; ensure they are not stuck.

4. 4

   Review the configuration of dynamization parameters in the DIAX04 SSE-03VRS drive (e.g., S-0-0019) to ensure they match the application's design.

5. 5

   If the issue persists, monitor the status of the relevant safety inputs via diagnostics to confirm they are indeed toggling as expected.