KL2124

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The KL2124 is a compact Beckhoff module weighing approximately 70 grams and supporting 2-/3-wire connection technology. As part of the KL Analog Input Modules series, it features four outputs and operates at a nominal voltage of 5 V DC. It is reverse voltage protected and short-circuit proof.

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Product Description:

The KL2124 Bus Terminal manufactured by Beckhoff functions as a digital output module. It includes four output channels for industrial automation. The bus terminal functions to manage a standard output voltage level of 5 V DC. The terminals provide output currents of ±20 mA per channel due to built-in short-circuit protection.

Each output channel of KL2124 Bus Terminal has an operational rating of 8 mA signal current for productive operation stability. Each output on this terminal enables operation with ohmic, inductive, and lamp loads. The reverse polarity protection system protects the terminal from wiring malfunctions. The K-bus maintains an electrical separation from field potential through a rated isolation voltage, which reaches 500 V. A safety mechanism maintains proper separation between the internal bus signals and external field connections. A 2-wire and 3-wire connection scheme enables operation of the KL2124 Bus Terminal. A typical power consumption of the KL2124 Bus Terminal amounts to 16 mA with additional drain from load connections through power contacts. At present, the electrical usage of the K-bus requires around 14 milliamperes. Each output of the process image utilizes four bits in the term. This terminal does not need a manual addressing setup or terminal configuration. Each channel on this terminal provides LED indicators that clearly show the signal status. The reliability of this module functions within an operating temperature band extending from 0°C to +55°C.

The KL2124 Bus Terminal works in a non-condensing environment. It enables relative humidity variations between 5% and 95%. The terminal achieves IEC 60068-2-6 standards for vibration resistance. The shock resistance performance of the terminal matches IEC 60068-2-27 industrial specifications. The terminal offers IP20 protection against solid objects according to the standards. The terminal has a durable polycarbonate material structure. It offers operational performance at -25°C to +85°C without encountering any limitations.

Connection technology
2-/3-wire
Current consumption (power contacts)
16 mA (typ.) + load
EMC immunity/emission
EN 61000-6-2 / EN 61000-6-4
Installation position
variable
Load types
ohmic, inductive, lamp
Max output current per channel
±20 mA (short-circuit proof)
Nominal voltage
5 V DC
Number of outputs
4
Operating temperature
0 to 55 °C
Protection rating
IP20
Reverse voltage protection
yes
Shock resistance
EN 60068-2-27
Signal current
8 mA
Vibration resistance
EN 60068-2-6
Weight
approx. 70 g

Frequently Asked Questions about KL2124:

Q: Why is the 500 V isolation voltage critical in the KL2124 Bus Terminal design?

A: The 500 V isolation voltage in KL2124 maintains electrical separation between field signals and internal bus signals. This reduces interference and prevents cross-circuit faults in automation setups.

Q: How does reverse polarity protection enhance the KL2124 Bus Terminal performance?

A: The reverse polarity protection in KL2124 prevents damage caused by incorrect wiring connections. It ensures stable operation even under wiring faults, enhancing system reliability.

Q: What role does the LED signal status indicator play in the KL2124 Bus Terminal (KL2124)?

A: The LED indicators in KL2124 provide real-time monitoring of output signal status. This feature helps in quick fault diagnosis and maintenance in automation systems.

Q: Why is the polycarbonate material structure important for the KL2124 Bus Terminal durability?

A: The durable polycarbonate structure of KL2124 offers enhanced protection against environmental stress. It provides long-lasting performance even in rugged industrial conditions.

Q: How does the vibration resistance (IEC 60068-2-6) benefit the KL2124 Bus Terminal performance?

A: IEC 60068-2-6 vibration resistance ensures stable KL2124 operation in high-motion environments. It helps maintain reliable electrical connections under mechanical stress.


Internal Product Review

  • ‘‘The KL2124 Bus Terminal by Beckhoff stands out for its robust output stability. It has built-in short-circuit protection and a 500 V isolation voltage. The terminal feature LED signal indicators, reverse polarity protection, and IEC-compliant shock resistance deliver consistent and safe automation performance. ’’

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