Mounting and wiring
EL1052, EL1054
38
Version: 1.1
4.10
LEDs and connection
Fig. 29: LEDs and connection EL1052, EL1054
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
("0"; according to IEC 60947-5-6)
on
on
Error detection: shortcut on channel (I > 7 mA typ.)
on
off
Usual operation: NAMUR sensor on channel in conducting state
("1"; according to IEC 60947-5-6)
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
Summary of Contents for EL1052
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