Safety Node A Internal Fault

What does STAS1 Flashing mean?

The STAS1 (Safety node A) Orange LED is flashing at a rate other than 1 Hz (normal) or 10 Hz (boot phase), indicating an internal fault code within Safety Node A. This suggests a problem with the internal logic, communication, or processing of this safety node, potentially affecting safety chain integrity and preventing safe operation.

• Internal fault within the Safety Node A (STA1).
• Possible hardware failure on the safety controller.
• Corrupted firmware in the safety module.
• Overload or short circuit detected on a safety input/output.

Click steps to track your progress.

1. 1

   Check cabling at connectors X309, X310, and X312 for proper connection, integrity, and any signs of damage.

2. 2

   For test purposes, disconnect the cables at X309, X310, and X312, then switch the controller off and back on again to reset the module.

3. 3

   If the error recurs after checking cabling and power cycling, exchange the CCU_SR module.