BECKHOFF BK3xx0 - Manual (Page 11)

Notes on the Documentation
Fieldbus Components 9
Technical Data (Optical Fibres)
Technical data
Type BK3500 BK3520
Number of Bus Terminals 64 64 (255 with K-Bus extension)
Digital peripheral signals max. 512 inputs/outputs max. 1020 inputs/outputs
Analog peripheral signals max. 64 inputs/outputs max. 64 inputs/outputs
Configuration possibility Via the KS2000 configuration software or the controller
Maximum number of bytes
(inputs and outputs) 128 bytes 128 bytes
Baud rates up to max. 1.5 Mbaud (manual
setting) up to max. 12 Mbaud (automatic
detection)
Bus connection 1 x optical fibre with 2 HP
Simplex connectors 2 x optical fibres with 2 HP Simplex
connectors each
Power supply 24 V
DC
(-15 %/+20 %)
Input current 70 mA + (total K-Bus current)/4, 500 mA, 500 mA max.
Starting current 2.5 x continuous current
Recommended fuse maximum 10 A
K-Bus power supply up to 1750 mA
Power contact voltage maximum 24 V
DC
Power contact current load maximum 10 A
Electrical isolation power contact / supply / fieldbus
Dielectric strength 500 V
rms
(power contact / supply / fieldbus)
Weight approx. 170 g approx. 170 g
Permissible ambient temperature
(operation) 0 °C … +55 °C
Permissible ambient temperature
(storage) -25 °C … +85 °C
Permissible relative humidity 95 % (no condensation)
Vibration / shock resistance according to EN 60068-2-6 / EN 60068-2-27, EN 60068-2-29
EMC resistance Burst / ESD according to EN 61000-6-2 (EN 50082) / EN 61000-6-4 (EN 50081)
Protection class IP 20
Installation position variable