![Beckhoff KL9020 Documentation Download Page 16](http://html1.mh-extra.com/html/beckhoff/kl9020/kl9020_documentation_2719271016.webp)
Fitting and wiring
KL9020, KL9050
16
Version: 2.1.0
Function Switch
Fig. 7: KL9050 - Function Switch
•
Switch position Next:
The
Function Switch
of all Coupler Terminals (KL9050) to which a continuing Ethernet cable is
connected must be set to position
Next
!
•
Switch position Last:
Activate the terminating resistor at the last expansion terminal block of your K-bus extension system by
switching the
Function Switch
on the last Coupler Terminal (KL9050) to the
Last
position.
CAUTION
Danger to persons, the environment and equipment
ü
Correct setting of the
Function Switches
of all Coupler Terminals (KL9050) within a K-bus extension
system must be ensured!
ü
Correct setting of the
Function Switches
must also be ensured if Coupler Terminals (KL9050) are re-
placed!
ü
Please note that all extension terminal blocks connected after a Coupler Terminal (KL9050), whose
Function Switch
is set to the
Last
position, are not included correctly in the process image! This means:
a) The inputs of these terminals are not visible in the process image!
b) The outputs of these terminals are not controlled by the process image!
ð
The
Function Switch
may be set to the
Last
position only at the last Coupler Terminal (KL9050) of the
K-bus extension system!
Notes on the topology
Notes on the connection of the KL9020 and KL9050 terminals
The end terminal with RJ45 socket (KL9020) may only be used at the end of Bus Terminal blocks
that are opened by a fieldbus coupler! All extension terminal blocks must be terminated by a
KL9010 standard end terminal!
At least one terminal with process image must be connected to each KL9050 Coupler Terminal! The
operation of an extension terminal block with only one KL9010 (with no inputs or outputs) is not per-
missible
Disassembly
When mounting, observe the information in the chapter entitled
.
1. Ensure that the system is powered down and in a safe state.
2. Press the plastic lock of the RJ45 plug and pull it from the socket.
3. Carefully pull the orange-colored lug approximately 1 cm out of the terminal to be disassembled, until
it protrudes loosely. The lock with the C mounting rail is now released for this terminal, and the termi-
nal can be pulled from the mounting rail without excessive force.
4. Grasp the released terminal with thumb and index finger simultaneous at the upper and lower grooved
housing surfaces and pull the terminal away from the mounting rail.