SI P1 (CU): STOP A initiated

What does F01600 mean?

The drive-integrated "Safety Integrated" function on the Control Unit (CU) has detected a fault, initiating a STOP A (Safe Torque Off via the safety shutdown path). This can be caused by an unsuccessful forced checking procedure of the safety shutdown path or as a subsequent response to a defect in a monitoring channel (F01611). The drive will react with an OFF2 state, requiring an immediate POWER ON cycle for acknowledgment.

• Discrepancy or failure detected within the safety circuit connected to the Control Unit (CU) (e.g., emergency stop button stuck, safety gate switch open).
• Internal fault within the Safety Integrated function module on the CU, indicating a hardware or software malfunction.
• Incorrect parameterization of safety functions (e.g., P9500, P9601) on the CU, leading to an invalid safety state.
• External safety monitoring device (e.g., safety PLC, safety relay) issuing a STOP A command due to its own detected safety violation.
• Wiring fault in the safety chain (e.g., open circuit, short circuit) causing the safety function to trip.

Click steps to track your progress.

1. 1

   1. Check the status of all external safety devices (e.g., E-Stop buttons, light curtains, safety door interlocks) connected to the safety inputs of the CU.

2. 2

   2. Access the safety diagnostics (e.g., r9770, r9771) in the drive parameters to identify the specific cause reported by the Safety Integrated function.

3. 3

   3. Verify the wiring integrity of the safety circuit, ensuring correct connections to terminals X124, X125, X126 (example for PROFIsafe) on the CU.

4. 4

   4. Perform a safety function test (e.g., activate E-Stop, open gate) as per machine safety standards to confirm proper operation of the safety chain.

5. 5

   5. Review safety-related parameters (e.g., P9500, P9601, P9800) in the drive configuration for consistency with the machine's safety concept.

6. 6

   6. Cycle power to the Control Unit (CU) to reset any transient internal safety logic states, then re-check the fault.