KL2545 - Contact assignment

WARNING

Risk of injury through electric shock and damage to the device!

Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or wiring of the Bus Terminals.

KL2545 - Contact assignment 1:
KL2545 - Contact assignment

Left-hand section of the housing

Terminal point

No.

Connection for

Encoder A, A

1

Encoder A, connection A

Encoder B, A

2

Encoder B, connection A

Encoder Power +24 V

3

Encoder supply (from positive power contact)

Input 1

4

Digital input 1 (24 VDC).
The current counter value is saved as a reference mark in the latch register if bit CW.1 is set in the control word and a rising edge occurs at digital input 1.

Encoder A, B

5

Encoder A, connection B

Encoder B, B

6

Encoder B, connection B

Encoder Power 0 V

7

Encoder supply (from negative power contact)

Input 2

8

Digital input 2 (24 VDC).
The current counter value is saved as a reference mark in the latch register if bit CW.2 is set in the control word and a rising edge occurs at digital input 2.

Right-hand section of the housing

Terminal point (right)

No.

Connection for

Load A, A1

1'

Load A, connection A1

Load B, B1

2'

Load B, connection B1

Sense A

3'

Load A, sense

Load Power 48 V

4'

Power supply for supplying the load (maximum +48 VDC)

Load A, A2

5'

Load A, connection A2

Load B, B2

6'

Load B, connection B2

Sense B

7'

Load B, sense

Load Power 0 V

8'

Power supply for supplying the load (0 VDC)

Power contacts

The voltage Up of the power contacts (+24 VDC) supplies the following consumers:

KL2545 - Contact assignment 2:

Order of switch-on of the supply voltages

The voltage Up must already be present at the power contacts when the K-bus voltage is switched on so that the internal circuits (output stage drivers) can be initialized.
If this is not possible due to the application (supply is switched, for example, via emergency stop circuit), the terminal performs a software reset after the system starts up.
If the voltage Up at the power contacts fails, this is indicated by bit SW.14. The return of the voltage is automatically detected and an initialization is performed.

WARNING

Valves are not reset if the K-bus voltage fails!

If the K-bus voltage fails (5 V, supplied from the supply voltage Us of the Bus Coupler), the output drivers are not reset! This means that the valves are then not driven back to the initial position!