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The digital input terminals KL1488 and KL1498 (negative switching) acquire the binary control signals from the process level and transmit them, in an electrically isolated form, to the higher-level automation unit. The Bus Terminals contain eight channels which indicate their signal state by means of light emitting diodes. They are particularly suitable for space-saving use in control cabinets. By using the single-ended connection technique, a multi-channel sensor can be connected in the smallest space with a minimum amount of wiring. The power contacts are looped through.
For the KL1488 and KL1498 Bus Terminals, the reference point for all inputs is the 24 V power contact. These versions have input filters with different speeds.
Technical data | KL1488 | KS1488 | KL1498 | KS1498 |
---|---|---|
Connection technology | 1-wire | |
Number of inputs | 8 | |
Nominal voltage | 24 V DC (-15 %/+20 %) | |
“0“ signal voltage | 18…30 V | |
“1“ signal voltage | 0…7 V | |
“0“ signal current | – | |
“1“ signal current | typ. 3 mA | |
Input filter | typ. 3.0 ms | typ. 0.2 ms |
Current consumpt. K-bus | typ. 5 mA | |
Current consumption power contacts | typ. 2 mA + load | |
Electrical isolation | 500 V (K-bus/field potential) | |
Bit width in the process image | 8 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 | |
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 | |
Approvals | CE, UL, Ex |