LEDs and connection
LEDs
The following table is assigned to the respective LED number of a channel:
Signal LED | Error LED | Meaning |
|---|---|---|
off | on | Error detection: open-loop on channel (I < 200 µA typ.) |
off | off | Usual operation: NAMUR sensor on channel in closed state |
on | on | Error detection: shortcut on channel (I > 7 mA typ.) |
on | off | Usual operation: NAMUR sensor on channel in conducting state |
Connection EL1052
Terminal point | Description | |
|---|---|---|
Designation | No. | |
I1 | 1 | Input Channel 1 |
Uv1 | 2 | Sensor supply Channel 1 |
n.c. | 3 | Not connected |
PE | 4 | PE (internally connected to terminal point 8) |
I2 | 5 | Input Channel 2 |
Uv2 | 6 | Sensor supply Channel 2 |
n.c. | 7 | Not connected |
PE | 8 | PE (internally connected to terminal point 4) |
Connection EL1054
Terminal point | Description | |
|---|---|---|
Designation | No. | |
I1 | 1 | Input Channel 1 |
Uv1 | 2 | Sensor supply Channel 1 |
Uv3 | 3 | Sensor supply Channel 3 |
I3 | 4 | Input Channel 3 |
I2 | 5 | Input Channel 2 |
Uv2 | 6 | Sensor supply Channel 2 |
Uv4 | 7 | Sensor supply Channel 4 |
I4 | 8 | Input Channel 4 |