Yaskawa MP930 - Manual (Page 116)

System Startup
4.2.4 Connector Pin Layout and I/O Circuits
4 -14
J I/O Circuits
The following illustration shows the I/O circuits of the MC350 Unit and the IO350 Unit.
MC350 I/O Circuits
MC350
IN
+24 V CON
IN
+24 V
OUT
OUT
Inputs
Outputs
5.6 k
5.6 k 0
24 V
+24 V
Fuse
Fuse
Fuse
Broken fuse detection circuit
0
24 V
0
24 V
IO350 I/O Circuits
Broken fuse detection circuit
IO350
IN
+24 V CON
IN
+24 V
OUT
OUT
Input
Output
4.7 k
4.7 k 0
24 V
+24 V
Fuse
Fuse
Fuse 0 24 V 0 24 V
A fuse is inserted in the common output line of the MC Unit and I/O Unit as a protective circuit. If the output
layer shorts, there is a risk that the fuse may not break. Insert a protective element, such as a fuse, for each output,
as shown in the above illustration.
4
IMPORTANT