BK3500 and BK3520 (optical fibers)

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 detection)

Bus connection

1 x optical fiber with 2 HP Simplex connectors

2 x optical fibers 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 (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 / Markings*

CE, UKCA, cULus, EAC, ATEX

Ex markings

ATEX: II 3 G Ex nA IIC T4 Gc