X1 Power Supply - Siemens Sinumerik 828D Manual

Note
Digital and analog signals must not be laid together within a cable.
See also
Addressing components (Page 256)
7.9.3.1

X1 power supply

Requirements for the power supply
Risk of lightning strike
In the case of supply lines > 10 m, protectors must be installed at the device input in order to
protect against lightning (surge).
The DC power supply must be connected to the ground/shield of the control unit for EMC or
functional reasons. For EMC reasons, this connection should only be made at one point. As
a rule, the connection is provided as standard in the PLC I/Os. If this is not the case in
exceptional circumstances, the ground connection should be made on the grounding rail of
the control cabinet.
See also: "EMC Installation Guideline" Configuration Manual.
Table 7-88
Rated voltage
Non-periodic overvoltages
Transient voltage interruptions Idle time
PPU and components
Manual, 05/2015, 6FC5397-2DP40-3BA4
DANGER
Requirements of the DC power supply
According to EN 61131-2
Voltage range (mean value)
Voltage range (dynamic)
Voltage ripple peak-to-peak
Booting time at POWER ON
Duration of overvoltage
Recovery time
Events per hour
Recovery time
Events per hour
Anschließbare Komponenten
7.9 PP 72/48D 2/2A PN
24 V DC
20.4 V DC to 28.8 V DC
18.5 to 30.2 V DC
5% (unfiltered 6-pulse rectifi‐
cation)
Any
≤ 35 V
≤ 500 ms
≥ 50 s
≤ 10
≤ 3 ms
≥ 10 s
≤ 10
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