Safety Node A Power Supply Not Present

Was bedeutet STAS1 Off ?

The STAS1 (Safety node A) Orange LED is OFF, indicating no supply voltage is present for this safety node. This absence of power prevents Safety Node A from operating, which could compromise the overall safety functionality of the system.

• The power supply for Safety Node A (STAS1) is off.
• The STAS1 safety device has lost its power connection.
• No voltage detected on the STAS1 safety module's power input.

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1. 1

   Check fuse F17.3 on the CCU_SR for continuity and proper rating.

2. 2

   If the PWR/3.3V LED (Item 6, Page 98) lights up, indicating main 3.3V power is present, exchange the CCU_SR module, as the safety node's power supply is likely faulty internally.