Digital Input
KL1352
+ Input 1
Power contacts
+ Input 2
+24 V
0 V
- Input 2
Signal LED1
Signal LED2
Equivalent circuit
NAMUR sensor
NAMUR sensor
NAMUR
sensor
sensor
Top view
Contact assembly
Connection
Error LED1
Error LED2
- Input 1
+8,2 V
10 kΩ
1 kΩ
KL1352 | 2-channel digital input terminal 24 V DC for Namur sensors
The digital input terminal KL1352 analyses the input signal from Namur sensors in accordance with EN 50277 (previously DIN 19234). One bit indicates the sensor’s signal state in the process image. Another bit signals short-circuits or open leads. Red or green LEDs indicate the state of the two input bits.
| Technical data | KL1352 | KS1352 |
|---|---|
| Number of inputs | 2 |
| Nominal voltage | 24 V (-15 %/+20 %) |
| “0“ signal current | ≤ 1.2 mA |
| “1“ signal current | ≥ 2.1 mA |
| Switching hysteresis | 0.2 mA |
| Short circuit current | < 8.2 mA |
| Short circuit detection | > 6.5 mA |
| Input filter | 3.0 ms |
| Current consumption K-bus | typ. 5 mA |
| Electrical isolation | 500 Vrms (K-bus/field potential) |
| Bit width in the process image | 4 inputs |
| Configuration | no address or configuration setting |
| Weight | approx. 55 g |
| Operating/storage temperature | 0…+55 °C/-25…+85 °C |
| Relative humidity | 95 %, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27/29 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos. | IP 20/variable |
| Pluggable wiring | for all KSxxxx Bus Terminals |