Reference missing when selecting safety related end position

What does F3111 mean?

A required reference for selecting a safety-related end position is missing. For safety functions like 'Safely Limited Position', precise reference points are essential to ensure the machine stays within safe boundaries. Without this reference, the safety function cannot be reliably established, leading to a safety fault and machine halt.

• Safety encoder not homed or referenced
• Missing or incorrect safety limit switch activation
• Safety-related parameter for end position not configured
• Communication loss with safety encoder
• System state preventing reference acquisition for safety function

Click steps to track your progress.

1. 1

   Inspect all cabling and connections to the safety-related end position sensor (e.g., encoder, proximity switch, limit switch) for integrity, damage, and secure seating.

2. 2

   Verify power supply to the safety-related end position sensor and measure its output signals to confirm proper functionality and signal presence.

3. 3

   Check IndraDrive safety parameters (e.g., S-0-0199, S-0-0200, S-0-0197, S-0-0198) and associated enable bits for the safety-related end position, ensuring they are configured correctly as per machine design and safety manual.

4. 4

   Verify the actual physical position of the safety-related end position switch or the encoder's home/reference mark matches the configured reference point in the drive's safety parameters.