2-channel pulse width output terminals 24 V DC KL2502, KS2502
Signal LED1
Signal LED2
Power contact
+24 V
Power contact 0 V
Power contact PE
Output 1
Output 2
+24 V
0 V
PE
Top view 
Contact assembly 
2-channel pulse width output terminals 24 V DC KL2512, KS2512
Signal LED1
Signal LED2
Power contact
+24 V
Power contact 0 V
Power contact PE
Output 1
Output 2
+24 V
0 V
PE
Top view 
Contact assembly 

KL2502, KL2512 | 2-channel pulse width output terminals 24 V DC

The KL2502 output terminal modulates the pulse width of a binary signal, and outputs it electrically isolated from the K-bus. The mark/space ratio is prescribed by a 16 bit value from the automation unit. 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 are driven in time with the outputs and show the mark/space ratio by their brightness.

The KL2512 switches to negative potential and enables direct connection of different ohmic loads. The output signal is a pulse-width modulated voltage. The typical load of an LED group or an incandescent lamp is connected between the positive side of the supply voltage and the output of the KL2512. Via the fieldbus the output can be set independently for two channels with a resolution of more than 30,000 steps. The PWM frequency can be changed. The power transistors switch the ground connection and are galvanically isolated from the internal K-bus.

Technical data KL2502 | KS2502 KL2512 | KS2512
Number of outputs 2
Rated load voltage 24 V DC (-15 %/+20 %)
Load type ohmic
Max. output current 0.1 A (1 A driver component) per channel 1.5 A per channel
PWM clock frequency 1…20 kHz, 250 Hz default
Duty factor 0…100 % (TON > 750 ns, TOFF > 500 ns) 0…100 %
Resolution max. 10 bits
Electrical isolation 500 V (K-bus/field potential)
Current consumption power contacts typ. 10 mA + load
Current consumpt. K-bus typ. 18 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. 50 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 60068-2-27/29
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 CE, Ex
Special terminals
KL2502-3020 5 V output, 30 kHz limit frequency