KL5151

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The Beckhoff KL5151 module, a part of the KL Analog Input Modules series, operates within a frequency range of 0 Hz to 1 kHz using the EtherCAT Terminal bus system. It features 2 output channels, each capable of delivering a pulse train output and handling a signal voltage of 24 V DC. The device is IP20 protected and DIN rail mounted.

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Product Description:

The KL5151 analog module by Beckhoff reads position or speed signals from an incremental encoder in automation systems. Beckhoff shows engineering precision by offering well-integrated industrial solutions.

The KL5151 analog module provides an interface for incremental encoders operating at 24 V DC. The input circuit follows EN 61131-2 with type 1 specifications. A logical “0” is detected when the voltage is below 5 V DC while a logical “1” is detected when the voltage exceeds 15 V DC. The typical input current is 5 mA and it offers one channel for connecting incremental encoders. The connection terminals support A, B and C signals along with gate or latch control at 24 V. It supports one sensor input for external triggering or control signals. The operating voltage for connected feedback is 24 V DC. There is no specification listed for the encoder output current. It has a 32-bit binary counter that allows for high-resolution position or speed tracking. It contains a limit frequency of up to 400,000 increments per second when using 4-fold signal evaluation. The built-in quadrature decoder processes signals using 4-fold evaluation to achieve higher quality.

The KL5151 analog module uses a 32-bit zero-pulse latch which aids in providing a stable capture of encoder reference positions. Supported commands for the module include read, set and enable functions which help in allowing flexible working. It carries a mass of just 50 grams which aids in making it suitable for compact installations. The necessary temperature range required for the functioning lies from -25°C to 60°C. It meets international standards and carries CE, CCC, UL, ATEX and IECEx approvals. These markings confirm certification with safety and high standards needed in different regions and industries.

Bus System
EtherCAT Terminal
Channels
2
Connection Type
Push-in
Current Consumption
Approx. 60 mA (from E-bus)
Dimensions (w X H X D)
12 mm x 100 mm x 68 mm
Frequency Range
0 Hz to 1 kHz
Input For Reference Signal
Yes, per channel
Mounting
DIN rail
Operating Temperature
0 °C to +55 °C
Output Current Per Channel
20 mA
Output Type
Pulse train output
Permissible Relative Humidity
95 %, no condensation
Protection Class
IP20
Signal Voltage
24 V DC

Frequently Asked Questions about KL5151:

Q: What voltage levels define logic states in KL5151?

A: The Logic "0" is recognized below 5 V DC and logic "1" above 15 V DC. This follows EN 61131-2, type 1 standards.

Q: How many encoder channels does the KL5151 support?

A: The KL5151 supports one incremental encoder channel. It connects A, B, C signals along with gate or latch functions.

Q: What is the counting capacity of the KL5151?

A: It features a 32-bit binary counter. This enables accurate measurement and high-resolution data acquisition.

Q: What is the maximum frequency supported by the KL5151?

A: It supports up to 400,000 increments per second with 4-fold signal evaluation. This makes it suitable for fast-moving systems.

Q: What commands are available for the KL5151?

A: The supported commands include read, set, and enable. These allow flexible system integration and control.


Internal Product Review

  • ‘‘The KL5151 module by Beckhoff in the KL series offers solid performance for encoder signal processing. With 24 V DC operating voltage, 32-bit binary counter, and 400,000 increments per second capability, it handles high-speed tasks efficiently. It is a reliable solution with CE and ATEX certifications.’’

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