Siemens SINUMERIK 828D PPU Series Manual page 70

Interface description
6.2 Power supply connection
Table 6-2
Parameter
Typ. power consumption
Max. power consumption
Max. starting current
1)
2)
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
and/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 6-3
Rated voltage
Non-periodic overvoltages
Transient voltage
interruptions
70
Input voltage specification
1)
2)
PPU only (processor, memory, etc.)
PPU with full load (USB, handwheels)
DANGER
Technical data 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
Idle time
Recovery time
Events per hour
Values
1.2 A
2.5 A
4.4 A
24 V DC
20.4 VDC to 28.8 V DC
18.5 to 30.2 V DC
5% (unfiltered 6-pulse
rectification)
Any
≤ 35 V
≤ 500 ms
≥ 50 s
≤ 10
≤ 3 ms
≥ 10 s
≤ 10
Manual, 01/2014, 6FC5397-2DP40-3BA3
PPU