EEr External monitoring (activated via DCTRL)

What does x091 mean?

An external monitoring function has triggered this fault, which is activated via DCTRL (Drive Control) and configured through parameter C0581. The 'x' in the code indicates the response type: 0 for TRIP, 1 for message, 2 for warning.

• The external safety circuit (e.g., E-Stop, light curtain, guard door switch) connected to a digital input configured for external monitoring has opened.
• A signal on a digital input configured as an external fault input via parameter C0581 has changed state, triggering the fault.
• Wiring fault (e.g., broken wire, short circuit) in the external monitoring circuit connected to the drive.
• External PLC or control system outputting an incorrect signal to the drive's external monitoring input.
• Incorrect configuration of parameter C0581, where a normally closed contact is expected but an open contact is provided.

Click steps to track your progress.

1. 1

   Identify the specific digital input assigned as the external monitoring input via parameter C0581 and measure its voltage state.

2. 2

   Trace the wiring from the identified digital input to the external monitoring device (e.g., E-stop button, safety relay contact).

3. 3

   Verify the status of all external safety devices and ensure their contacts are closed (or open, as configured) as expected.

4. 4

   Check the logic configured in parameter C0581 (e.g., active high or active low) and ensure it matches the external signal.

5. 5

   Perform a continuity test on the external monitoring circuit wiring to identify any breaks or short circuits.