Siemens SINUMERIK 828D PPU Series, Руководство пользователя

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7.6.3.1 X1 power supply
Features and use
A description of the interfaces for the external power supply X1 can be found in Chapter "Power
supply connection (Page 69)" of the PPU description.
On the module side, the power supplies are protected against:
● Polarity reversal
● Short-circuit (elec. current limitation of the outputs)
● Overload (self-restoring PTC fuse - Multifuse)
Power requirement
0.7 A (at 24 VDC) for PP 72/48D PN and digital inputs plus 3 x 4 A at X111, X222 and X333
for supplying digital outputs.
Digital inputs
The 24 V supplied at X1 are used to supply the 72 digital inputs.
If the internal supply voltage is not used to supply the digital inputs, this can optionally be
replaced by an external power supply (24 VDC). The reference ground of the power supply
source must each be connected with X111, X222, X333, pin 1 (GND). X111, X222, X333, pin
2 (P24OUT) then remains open.
Digital outputs
To supply (24 VDC) the digital outputs, an additional external power supply source is required.
The power supply is connected to terminals X111, X222 and X333 via pins 47, 48, 49 and 50
(DOCOMx). Ground pins must be connected to a common chassis ground.
Maximum current consumption: 3 x 4 A if all outputs are used simultaneously.
NOTICE
It is the user's responsibility to ensure that the max. current consumption per DOCOMx pin
(X111, X222, X333: Pins 47, 48, 49, 50) does not exceed 1 A. The power supply (+24 VDC)
for the digital outputs must therefore be connected to all four pins per DOCOMx (X111, X222,
X333: pins 47, 48, 49, 50).
Connectable components
7.6 PP 72/48D PN
PPU
172
Manual, 01/2014, 6FC5397-2DP40-3BA3