Digital Output
KL2521
+A
-A
-B
+Z
Shield
Signal LED A
Signal LED T
Top view
Contact assembly
Signal LED B
Signal LED Z
+B
+T
Ground T, Z
KL2521 | 1-channel pulse train output terminal RS422/24 V DC
The KL2521 output terminal alters the frequency of a binary signal and (electrically isolated from the K-bus) outputs it. The frequency is preset by a 16 bit value from the automation unit. The output stage is RS422 compatible and, in the version KL2521-0024, can be driven with 24 V DC signals. The Bus Terminal indicates its signal state by means of light emitting diodes. The LEDs are driven in time with the outputs and each displays an active output.
| Technical data | KL2521 | KS2521 | KL2521-0024 | KS2521-0024 |
|---|---|---|
| Number of outputs | 1 channel (2 differential outputs A, B) | |
| Number of inputs | 2 (+T, +Z) | |
| Signal voltage | RS422 level | 24 V DC (externally supplied) |
| Max. output current | RS422 specification | 0.5 A |
| Base frequency | 1…500 kHz, 50 kHz default | |
| Duty factor | 50 % (±20 %) | |
| Resolution | max. 15 bits | |
| Electrical isolation | 500 Vrms (K-bus/field potential) | |
| Current consumption K-bus | typ. 50 mA, max. 120 mA (load-dependent) | |
| Bit width in the process image | 24 inputs/outputs: 1 x 16 bit data, 1 x 8 bit control/status | |
| Configuration | 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 | |
| Special terminals | |
|---|---|
| KL2521-0010 | with additional outputs (230 V AC/DC 100 mA) instead of the additional inputs of the default variant |