2-channel pulse width current terminal ±3.5 A, <br />48 V DC KL2545
Error A, B
Enable A, B
Load Power
Input 1, Input 2 
Encoder B: A, B 
Encoder A: A, B 
Run LED 
Power contact
+24 V
Power contact 0 V
Encoder A:
A, B
Encoder B: A, B
Encoder supply
Input 1, Input 2
Coil A:
A1, A2
Coil B:
B1, B2
Sense A, B
Load voltage
48 V, 0 V
Top view 
Contact assembly 

KL2545 | 2-channel pulse width current terminal ±3.5 A,
48 V DC

The KL2545 output terminal controls an output current via pulse width control of the supply voltage. It is galvanically isolated from the K-bus. The current value (0 to ±3.5 A) is specified by the automation device via a 16 bit value. The output stage is protected against overload and short-circuit. The Bus Terminal contains two channels that indicate their signal state by means of light emitting diodes. The LEDs simplify local diagnosis by displaying typical load and wiring faults.

Technical data KL2545, KS2545
Number of outputs 2
Nominal voltage 8…48 V DC
Auxiliary voltage 24 V DC via power contacts
Load type inductive > 1 mH, valves, coils
Max. output current 2 x ±3.5 A (short-circuit proof, thermal-overload proof for both channels together)
PWM clock frequency 36 kHz
Duty factor 0…100 % (current-controlled)
Resolution max. 12 bit
Electrical isolation 500 V (K-bus/field potential)
Current consumption power contacts typ. 30 mA + load
Current consumption K-bus typ. 100 mA
Bit width in the process image 48 inputs/outputs: 2 x 16 bit data, 2 x 8 bit control/status
Configuration no address setting, configuration via Bus Coupler or controller
Weight approx. 100 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/see documentation
Pluggable wiring for all KSxxxx Bus Terminals
Approvals/markings CE