Note
Digital and analog signals must not be laid together within a cable.
See also
Addressing the I/O modules (Page 75)
7.7.3.1
X1 power supply
Requirements for the power supply
DANGER
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 7-82
Requirements of the DC power supply
Rated voltage
According to EN 61131-2
24 V DC
Voltage range (mean value)
20.4 V DC to 28.8 V DC
Voltage range (dynamic)
18.5 to 30.2 V DC
Voltage ripple peak-to-peak
5% (unfiltered 6-pulse
rectification)
Booting time at POWER ON
Any
Non-periodic overvoltages
≤ 35 V
Duration of overvoltage
≤ 500 ms
Recovery time
≥ 50 s
Events per hour
≤ 10
Transient voltage interruptions Idle time
≤ 3 ms
Recovery time
≥ 10 s
Events per hour
≤ 10
Connectable components
7.7 PP 72/48D 2/2A PN
PPU
190
Manual, 01/2014, 6FC5397-2DP40-3BA3
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