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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