Siemens SIMADYN D Hardware Manual page 48

Subracks
Supply connection
NOTES
2-14
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 Test sockets to check the 3 output voltages 5 V, +/-15 V
(short-circuit proof)
The line supply voltage is connected through the 3-pole screw/plug-in
terminal X1.
The connection assignment is printed on the front panel:
Above the voltage selector switch (Slide switch) can be switched to between
an input nominal voltage from 230 V and 115 V.
The in each case valid value becomes visible with transfer of the switch.
SR12.1 and SR12.2
SR24.1 and SR24.2
Input voltage 24 V DC
X1 Pin 1 +24 V
X1 Pin 2 Ground (0 V)
X1 Pin 3 Protective ground conductor
PE
External fuse For SR12.x:
In = 16 A max..
(rating)
I²t= 6 A²s
Is = 32 A
(inrush peak)
For SR24.x:
In = 32 A max..
I²t= 10 A²s
Is = 64 A
(inrush peak)
X2 pins 1 - 4 Monitoring the power supply and fan assembly (relay)
X3 pins 1 - 2 Feed for an external back-up battery
X4 pins 1 - 2 Reset: A reset is initiated by jumpering the contents (optional to
using the reset button)
The specified current In is the current that can occur at a maximum insertion
of the subrack. The power supplies are in part oversized, and have a higher
maximum input current (Chapter: Technical dates).
The protective conductor must be connected at connector X1, pin 3.
It is not sufficient to connect a protective conductor at the subrack.
It must be a slightly accessible circuit breaker in the supply circuit.
Interface modules with binary output function SB70, SB71 should be
powered-up approximately 200 ms before the modules are powered-up
to prevent power-on effects.
This is achieved by simultaneously powering-up the subrack power
supplies (this requires approximately 200 ms to establish the voltages)
and the interface modules.
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SR12.3 and SR12.4
SR24.3 and SR24.4
230 V AC (default setting of
voltage selector switch )
115 V AC (change over voltage
selector switch )
Phase conductor L
Neutral conductor N
Protective conductor PE
For SR12.x: (AC230V)
In = 1.2 A max..
I²t= 0.6 A²s
Is = 6 A
(inrush peak)
For SR24.x: (AC230V)
In = 2.7 A max..
I²t= 1 A²s
Is = 9 A
(inrush peak)
Hardware - SIMADYN D
Edition 04.2011
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