KL3122
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MPN: KL3122-0000
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In-Stock, Ships 1-2 Days
The KL3122 terminal supports dual 4–20 mA inputs with up to 16-bit resolution and 140 ms default conversion time. It ensures electrical isolation and features automatic open lead detection for reliable signal digitization.
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Product Description:
The KL3122 Bus Terminal is designed to handle standard current signals ranging from 4 to 20 mA. It digitizes the signal with up to 16 bit resolution and transmits data in an electrically isolated form to automation systems. This compact module supports two input channels and integrates seamlessly with the K bus for efficient data transfer.
The KL3122 bus terminal features differential input technology with internal grounding that offers precise and interference resistant measurements. Each input channel includes a 50 Ω shunt resistor and the typical load resistance is 60 Ω plus diode voltage. The module supports a maximum common mode voltage of 35 V that ensures robust operation under varied field conditions. Conversion time of the terminal is 140 ms by default but can be configured down to 2 ms for faster response needs. The input filter of the terminal is set at 50 Hz but can also be adjusted as required. The resolution is set to 15 bit by default and users can configure it to 16 bit for higher precision. Measurement uncertainty is less than ± 0.3 % relative to the full scale value that allows accurate signal representation. The unit automatically detects open lead or overload conditions and communicates status via the K bus. LED indicators assist in diagnostics; run LEDs show data exchange while error LEDs highlight overload conditions.
The Beckhoff KL3122 bus terminal operates without the need for address or additional configuration settings which simplifies installation. This bus terminal draws power directly from the K bus. The terminal is lightweight yet sturdy with a weight of approximately 70 grams. It withstands storage temperatures ranging from – 25 °C to + 85 °C.
Frequently Asked Questions about KL3122:
Q: How does the KL3122 bus terminal ensure signal accuracy during harsh field conditions?
A: The KL3122 supports a maximum common mode voltage of 35 volts to maintain stable operation. It uses differential input technology with internal grounding to reduce interference and improve precision.
Q: Can the KL3122 conversion time be adjusted for faster process control?
A: Yes, the KL3122’s default conversion time is 140 milliseconds but can be configured down to 2 milliseconds. This allows for quicker response in time-critical automation applications.
Q: How does the KL3122 detect wiring faults and communicate status to the system?
A: The KL3122 automatically identifies open lead and overload conditions. It sends status updates via the K bus while error LEDs provide immediate visual diagnostics.
Q: What input filtering options does the Beckhoff KL3122 offer for signal stabilization?
A: The KL3122 input filter is preset to 50 Hertz but can be adjusted to suit specific application needs. This helps in minimizing noise and stabilizing measured signals.
Q: How does the KL3122 manage power and installation complexity?
A: The KL3122 draws power directly from the K bus eliminating the need for external power supplies. It requires no address or additional configuration simplifying installation significantly.
