B 9302 (0507)
140
2.6 Connections on the rear
Figure 4: Connections on the rear of the I/O subrack K 1406
Connections on the rear of the I/O subrack K 1406 (refer also to: Supply, feeding and distribu-
tion of the 24 V system voltage, wiring diagram).
2.6.1 Wiring by customer
XG .1, XG .2 Fuse monitoring (neutral contacts on current distribution module
F 7133, not equipped F 7133 slot can be overrided by the jump-
ers X1...X4)
= Slot equipped
XG .3 Supply EL+ for F 7133 and F 7553
Reference pole: XG .11 (L-)
XG. 4 + 5 V
Reference pole: XG .12 (GND)
XG .5 Potential distributor, free disposal
XG .6 Potential distributor, free disposal
XG. 13 Potential distributor, free disposal
XG .14 Potential distributor, free disposal
XG .7 L+ to F 7133, slot 21
XG .8 L+ to F 7133, slot 20
XG .9 L+ to F 7133, slot 19
XG .10 L+ to F 7133, slot 18
XG .11 Reference potential L-
XG.12 Reference pole GND
XG .15 (1+2) WD (Watchdog signal)
XG .15 (3+4) not used
XD .1, XD .2 I/O bus connection
PE (earth)
8
AK6ab
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