Beckhoff KL2521 Series, Документация

Страница: 24 / 43

Mounting and wiring
KL2521 24 Version: 2.1
KL2521-0024: Connection to external electronics
Note when connecting external electronics that terminal point A of the first channel and terminal point B of
the second channel of a KL2521-0024 are connected to each other internally.
Fig. 17: KL2521-0024 - connection to external electronics
This allows the dual-channel connection of external electronics if the KL2521-0024 switches the ground of
the connected device as shown in
example 1 .
Note
Notes on connection to external electronics
• The Beckhoff KL5111, KL5121, KL5151 and KL5152 incremental encoder interface ter-
minals require the switching of the positive voltage.
• Because the terminal points A and B of the KL2521-0024 are bridged internally, the
KL2521-0024 cannot switch the two inputs of the KL5151-0000 shown in example 2 in-
dependently of each other. This circuit crossed out in red is therefore of no use!
• As shown in example 3 , however, you can use one channel of the KL2521-0024 to
switch one channel of the KL5151-0000.
KL2521-0010 Connection of additional outputs T, Z
The outputs are realized by MOSFET switches and can switch AC and DC voltages up to 230 V. The
maximum current is 100 mA. DC voltages can be switched positive and negative.
Ausgang T, Z
Fig. 18: KL2521-0010 - Output T, Z
Wiring
Fig. 19: KL2521-0010 - Wiring