9 INSTALLATION AND WIRING
9.2 External Wiring
247
9
Relay switching wiring
Relay switching wiring is as follows.
For available terminal modules and special cables, refer to the following.
Page 240 Terminal module for the RY40PT5B
Use an external power supply (24VDC) that satisfies the following conditions.
• The overvoltage protection function is available.
• The output voltage does not exceed 35VDC in single fault state.
YF(-)
YF(+)
YE(-)
YE(+)
YD(-)
YD(+)
·
Y2(-)
Y2(+)
Y1(-)
Y1(+)
Y0(-)
Y0(+)
DC0V
DC24V
RY40PT5B
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
Y2
Y3
YE
YF
+24V(COM)
0V
Y0
Y1
1
2
3
4
20
18
16
14
Terminal
block
Connector number
Cable connector
Terminal block
Connection to relays
24VDC
Terminal module
Cable
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