Beckhoff BK3 0 Series User Manual

Product overview
BK3xx0 13Version: 4.3.0
2.3 BK35x0 - Technical data (optical fibers)
Fig.3: BK3500 and BK3520 - Bus Couplers with optical fiber connection for PROFIBUS DP
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
Max. 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 detec-
tion)
Bus connection 1 x optical fiber with 2 HP Simplex con-
nectors
2 x optical fibers with 2 HP Simplex con-
nectors 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 (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 conforms to EN 60068-2-6 / EN 60068-2-27
EMC immunity / emission conforms to EN 61000-6-2 / EN 61000-6-4
Protection class IP20
Installation position variable
Approvals
CE, ATEX [}33], cULus

Beckhoff BK3 0 Series Specifications

General

Brand	Beckhoff
Model	BK3 0 Series
Category	Adapter
Language	English