Power Supply; Fig. 13 High Density Terminals - Beckhoff KL9020 Documentation

Fitting and wiring
Terminal housing
Wire size width (single core wires)
Wire size width (fine-wire conductors)
Wire size width (conductors with a wire end sleeve)
Wire stripping length
High Density Terminals (HD Terminals [} 20]) with 16 terminal points
The conductors of the HD Terminals are connected without tools for single-wire conductors using the direct
plug-in technique, i.e. after stripping the wire is simply plugged into the terminal point. The cables are
released, as usual, using the contact release with the aid of a screwdriver. See the following table for the
suitable wire size width.
Terminal housing
Wire size width (single core wires)
Wire size width (fine-wire conductors)
Wire size width (conductors with a wire end sleeve)
Wire size width (ultrasonically "bonded" conductors) only 1.5 mm
Wire stripping length
3.5

Power supply

Danger for persons, the environment or equipment
Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or
wiring of the Bus Terminals!
The supply connections V
(power contacts) of a terminal block are galvanically separated from each other and can be supplied via
separate 24 V voltage sources. If no electrical isolation is required between K-bus and field devices, the
DC
module electronics and the field devices can be supplied from a single voltage source.
Notes on fail-safe operation
For the trouble-free operation of a K-bus extension system, the ground connection of the K-Bus power sup-
plies (Vk 0V) of all terminal blocks must be connected with each other via a low-resistance connection (see
Figure). This also includes the ground connection of the K-bus power supply of the higher-level Fieldbus
Coupler!
22
for the module electronics (K-bus) and supply connections for the field devices
k
Version: 2.1.0
ELxxxx, KLxxxx
0.08 ... 2.5 mm
0.08 ... 2.5 mm
0.14 ... 1.5 mm
8 ... 9 mm
High Density Housing
0.08 ... 1.5 mm
0.25 ... 1.5 mm
0.14 ... 0.75 mm
2
8 ... 9 mm
DANGER
NOTE
ESxxxx, KSxxxx
2
0.08 ... 2.5 mm
2
0,08 ... 2.5 mm
2
0.14 ... 1.5 mm
9 ... 10 mm
2
2
2
KL9020, KL9050
2
2
2