Analog Input
KL3356
+UD
-UD
-Uv
Shield
+UREF
-UREF
+Uv
Shield
Run LED1
Run LED2
Error LED1
Error LED2
Top view
Contact assembly
Connection
+Uv
+UREF
-UD
+UD
-UREF
-Uv
The supply voltage Uv is supplied from an external source (e.g. KL9512). The maximum input voltage UREF is limited to 12 V.
Power contact -Uv
Power contact +Uv
KL3356 | 1-channel accurate resistor bridge evaluation
The KL3356 analog input terminal permits direct connection of a resistor bridge. An improved input circuit makes the KL3356 significantly more accurate than the KL3351. The ratio between the bridge voltage UD and the supply voltage UREF is determined in the input circuit. In order to achieve good long-term stability, the complete circuit is re-calibrated at least every three minutes. This procedure can be synchronised by the control in order to prevent the calibration leading to a delay in the production process.
| Technical data | KL3356 | KS3356 |
|---|---|
| Number of inputs | 2, for one resistor bridge |
| Power supply | via the K-bus |
| Signal voltage UD, UREF | -20…+20 mV, -12…+12 V |
| Internal resistance | > 200 kΩ (UREF), > 1 MΩ (UD) |
| Resolution | 16 bits |
| Conversion time | < 250 ms, configurable |
| Measuring error | < ±0.01 % (relative to full scale value), self-calibration |
| Current consumption K-bus | typ. 85 mA |
| Bit width in the process image | input: 2 x 16 bit data (2 x 8 bit control/status optional) |
| Weight | 75 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 |