
12
Figure 2.8.
STO electrical schematic.
2.1.4
Deactivating the STO (OPTIONAL)
In case the STO functionality is not required, the on-board +5VDC can be conveniently
applied to the STO inputs conveniently without needing an external voltage source. This can
be done by applying jumper connection on the I/O and STO connector as shown in
Figure
2.9.
Figure 2.9.
Disabling the STO on the I/O and STO connector.
STO1
STO2
STO_COM
(5VDC
–
30 VDC)
+5V
To STO circuit
To STO circuit
2.5 k
Ω
2.5 k
Ω
(5VDC
–
30 VDC)
Internal to CBC
14 15 16
7
8
➢
Connect pins 8, 14, 15 together
➢
Connect pins 7 , 16 together
Содержание CBC-EIP
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