B 5230 / H51q-M (0605)
90
4.1 Current distribution within the assembly kit
4.1.1 HIMA devices for current distribution
It is recommended to use the HIMA supplies and current distributions:
4.1.2 Supply 24 VDC
The 24 VDC power supply can be feeded three times to the system H51q-M (starlike wiring).
See also catalog H41q/H51q, chapter 4.3, The Input/Output Level, 24 VDC Supply and Distri-
bution.
4.1.3 Output 24 VDC
4.1.4 Supply 5 VDC
The 5 VDC power supply does not have to be wired extra as it is already part of the installation.
To supply the I/O racks the 5 V power supply with corresponding GND is available at the rear
side of the central rack.
The 5 VDC power and GND are connected starlike with each 2 wires to the potential distributor.
The 5 VDC power needed for the microprocessor system and as control current for the I/O
modules is generated from the 24 VDC power of the system via (24 VDC / 5 VDC) power sup-
ply modules type F 7126. One central rack can be equipped with a maximum of 3 power supply
modules. The power supply modules are switched in parallel. One or two power supply mod-
ules are usually able to supply the PES. A further power supply module is used to increase
availability.
K 7212 redundant feeding up to 35 A total current, with 2 decoupling diodes and 2 net-
work filters, with fusing of up to 12 single circuits with circuit breakers or
K 7213 redundant feeding up to 35 A total current, with fusing of up to 12 single cir-
cuits with circuit breakers or
K 7214 redundant feeding up to 150 A total current, with fusing of up to 18 single cir-
cuits with circuit breakers or
K 7215 redundant feeding up to 150 A total current, with fusing of up to 18 single cir-
cuits with circuit breakers, graphical display.
Connection Wire and connection Fusing Use
XG.21/22/23:2 (L+)
RD 2.5 mm
2
, Faston 6.3 x 0.8
max. 16 A gL PS1...PS3
XG.21/22/23:1 (L-)
BK 2.5 mm
2
, Faston 6.3 x 0.8
Reference pole L-
RD = Color code red BK = Color code black
Table 1: Supply 24 VDC
Connection Wire and connection Use
XG.24:2 (L+)
RD 1.5 mm
2
, Faston 6.3 x 0.8
Supply fuse monitoring and IO-CON in
the I/O rack
RD = Color code red
Table 2: Output 24 VDC
Note At planning the load of the power supply units have to be calculated.
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