KL9050 | Terminal bus extension, coupler terminal

The KL9050 coupler terminal replaces the Bus Coupler on a Bus Terminal block. The KL9050 is the counterpart to the KL9020. The S(F)TP cable (shielded twisted pair) is plugged into the upper socket, providing the logical connection to the Bus Coupler. The extension is fully transparent for the Bus Coupler. All Bus Terminal system functions remain unchanged. The second RJ45 socket allows the system to be extended further. A new KL9050 can be connected to the first coupler terminal. The whole system can thereby be extended by 31 stations. The supply voltage for the field level and the internal electronics can be input separately. Both levels are thereby electrically isolated from one another. In the KL9050 a 400 mA K-bus power supply unit supplies the added Bus Terminals. The internal electronics and the field level can be supplied together from a single voltage source. Three diagnostic LEDs give information about the supply voltage for each Bus Terminal block, internal and field level. The KL9050 can be used as the last coupler terminal in the system or as a bridge between two Bus Terminal blocks. You can switch between these two functions with a selector switch. The switch must be correctly positioned for the system to operate.

Number of Bus Terminals 64

Current load ≤ 10 A

Power LED green

Defect LED –

Type/number of peripheral signals Bus Coupler dependency

Distance between stations max. 5 m between KL9050 and KL9050

Bus interface 2 x RJ45 socket (input + output)

Power supply 24 V DC (-15%/+20%)

Input current 70 mA + (total K-bus current)/4, 200 mA max.

Starting current 2.5 x continuous current

Current supply K-bus up to 400 mA

Power contacts max. 24 V DC/max. 10 A

Nominal voltage 24 V DC (-15%/+20%)

Electrical isolation 500 V (power contact/supply voltage/fieldbus)

PE contact yes

Shield connection –

Electrical connection to DIN rail –

Special features coupler terminal for K-bus extension (max. 64 Bus Terminals)

Weight approx. 75 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

EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4

Protect. rating/installation pos. IP20/variable

Approvals/markings CE, UL, ATEX, IECEx, DNV GL

Ex marking ATEX:

II 3 G Ex ec IIC T4 Gc

IECEx:

Ex ec IIC T4 Gc 

 

>>> Refer to technical document: KL9020_KL9050en