BECKHOFF C9900-G0xx - Manual (Page 14)

Product description
12 C9900-G0xx
Three-button PCB
Fig. 7: Three-button PCB
The three-button PCB has two K-bus interfaces (1, CON400 & CON401), which are assigned ex factory.
The outer connection strips (2, CON600 & CON601) are used for power supply for the indicator lamps,
connection strip 4 is available for customer use. The bridges between the button PCBs are assigned ex
factory. The power supply has to be provided by the customer. One of the two N/O contacts of each
button is available for customer use via a connection strip (3, CON603). At a further connection strip (4,
CON602) three digital inputs are available for customer use, which are transferred via the K-bus. The 24
V supply has to be provided by the customer. The PCB also features a DIP switch (5, SW600), which is
explained in section 2.5.
The pin assignments for connection strips 2, 3 and 4 are listed in Table 2.
Connection
strip Terminal
point
Description
1
1 24 V DC
2 0 V
3
1 Input N/O contact 1
2 Output N/O contact 1
3 Input N/O contact 2
4 Output N/O contact 2
5 Input N/O contact 3
6 Output N/O contact 3
4
1 24 V output
2 Digital input 1
3 24 V output
4 Digital input 2
5 24 V output
6 Digital input 3
Table 2: Pin assignment for three-button PCB