BECKHOFF C9900-G0xx - Manual (Page 17)

Product description
C9900-G0xx 15
2.4.3 Toggle switch
An application example for the connection strips is the use of a toggle switch. If a toggle switch is installed
instead of a button, which is to be queried electronically in two positions, the potential-free contact of the
button (see item 3 in Fig. 7 & Fig. 8) can be used for this purpose. The N/O contact can be read-in with
the aid of the additional digital input (see item 4 in Fig. 7 & Fig. 8).
2.5 Wiring of the connection strips
Releasing the spring contact strip
The connection strip can be wired in unconnected or connected state. To release the spring contact strip
from the pin contact strip, use a suitable tool, for example a screwdriver, to guide the locking device in the
direction of the connection strip. The spring contact strip can be removed from the handle plate while the
locking device is held in this position.
Fig. 10: Releasing the spring contact strip
Wiring
The cables are connected as follows:
1. Open a spring-loaded terminal by slightly pushing with a screwdriver or a rod into the square
opening above the connection strip.
2. The wire can now be inserted into the round terminal opening without any force.
3. The terminal closes automatically when the pressure is released, holding the wire safely and
permanently.
DIP switch
The dip switch can be used to loop the 24 V supply of the PCB (see item 2 in Fig. 7 & Fig. 8) directly via
the second N/O contact of a button. In this way the cabling effort at the pin contact strip (see item 3 in
Fig. 7 & Fig. 8) can be reduced.
Example:
Button 2 needs to switch 24 V. Turn the DIP switch to position 2. If button 2 is now actuated, 24 V is
applied to contact 4 on the connector strip.