Safety Node B Power Supply Not Present

Was bedeutet STAS2 Off ?

The STAS2 (Safety node B) Orange LED is OFF, indicating no supply voltage is present for this safety node. This absence of power prevents Safety Node B from operating, which could compromise the overall safety functionality of the system.

• The power supply for Safety Node B (STAS2) is off.
• No power is being supplied to the STAS2 safety device.
• The STAS2 safety module has lost its operational power.

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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.