Diagnostic LEDs
LEDs for power supply diagnostics
LED | Display | State | Description | |
|---|---|---|---|---|
Us | green | off | - | No operating voltage present at the Bus Coupler |
on | - | 24 VDC operating voltage present at the Bus Coupler | ||
Up | green | off | - | No power supply present at the power contacts |
on | - | 24 VDC power supply present at the power contacts | ||
Diagnostic LEDs for the EtherCAT State Machine/PLC
LED | Display | State | Description | |
|---|---|---|---|---|
RUN | green | off | Init | The Bus Coupler is in initialization state |
flashing | Pre-Operational | The Bus Coupler is in pre-operational state | ||
single flash | Safe-Operational | The Bus Coupler is in safe-operational state | ||
on | Operational | The Bus Coupler is in operational state | ||
flickers | Bootstrap | Firmware is being loaded. | ||
LEDs for fieldbus diagnostics
LED | Display | State | Description | |
|---|---|---|---|---|
LINK / ACT (X1 IN) | green | off | - | No connection on the incoming EtherCAT strand |
on | linked | Preceding EtherCAT device connected | ||
flashing | active | Communication with preceding EtherCAT device | ||
LINK / ACT (X2 OUT) | green | off | - | No connection on the incoming EtherCAT strand |
on | linked | Following EtherCAT device connected | ||
flashing | active | Communication with following EtherCAT device | ||
LINK / ACT E-bus | green | off | - | no connection to internal E-bus |
on | linked | Connection to internal E-bus | ||
flashing | active | Connection/communication internal E-bus | ||
LEDs for diagnostics of the digital inputs and outputs
LED | Display | Description | |
|---|---|---|---|
INPUT** | green | off | Signal voltage "0" (-3 V ... 5 V) |
on | Signal voltage "1" (11 V ... 30 V) | ||
OUTPUT** | green | off | No output signal |
on | 24 VDC output signal at the respective output | ||
**) depending on version