Status LEDs and status bits
Each supply voltage output has a status LED that indicates the status of the output.
The LED applies to both voltages / currents (US and UP; logical OR).
The status bits are located in the process data. They report statuses, warnings and errors for the entire device.
The following table shows the meaning of different combinations of messages by status LEDs and status bits.
LED | Status | Warning | Error | Description |
|---|---|---|---|---|
off | 0 | 0 | 0 | The output is ready |
Green | 1 | 0 | 0 | The output is just switching on |
Green | 1 | 0 | 0 | The output is switched on. Normal operating state. |
Flashing green | 1 | 1 | 0 | The output is still operating, but will switch off if conditions remain unchanged (Warning Ux). |
Flashing red | 0 | 1 | 1 | The output has been switched off (Error Ux). Switching on again is not yet possible (waiting time of 20 seconds) |
Red | 0 | 0 | 1 | The output has been disabled and can be returned to a normal state by a reset. |
Initialization
When switching on the power supply to the EP9214 / EP9224, all green LEDs and then all red LEDs are switched on briefly to test the LEDs.