Power Distribution Wiring Diagram
Wiring Diagram for External Power Supplies
NOTE: Connect the 0 Vdc power circuits together and to the functional ground (FE) of your system to meet the EMC requirements.
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HAZARD OF ELECTRIC SHOCK, EXPLOSION, OVERHEATING AND FIRE |
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oDo not connect the modules directly to line voltage. oUse only isolating PELV systems according to IEC 61140 to supply power to the modules. oConnect the 0 Vdc of the external power supplies to FE (Functional Earth/ground). |
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Failure to follow these instructions will result in death or serious injury. |
The following illustration shows the wiring diagram of the Controller Power Distribution Module (CPDM):
1 Internal electronics
2 24 Vdc I/O power segment integrated into the bus bases
3 External fuse, Type T slow-blow, 3 A 250 V
4 External fuse, Type T slow-blow, 2 A 250 V
5 External fuse, Type T slow-blow, 10 A max., 250 V
PS1/PS2 External isolated power supply 24 Vdc
Exp Embedded expert I/O power
Ctrl Main power
I/O I/O Power Segment power
NOTE: The assigned fuse values have been specified for the maximum current characteristics of the controller or expansion I/O and associated commons. You may have other considerations that are applicable based on the unique types of input and output devices you connect, or conformance to local, national or applicable certification regulations and standards, and you should size your fuses accordingly.
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FIRE HAZARD |
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oUse only the correct wire sizes for the maximum current capacity of the I/O channels and power supplies. oFor relay output (2 A) wiring, use conductors of at least 0.5 mm2 (AWG 20) with a temperature rating of at least 80 °C (176 °F). oFor common conductors of relay output wiring (7 A), or relay output wiring greater than 2 A, use conductors of at least 1.0 mm2 (AWG 16) with a temperature rating of at least 80 °C (176 °F). |
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Failure to follow these instructions will result in death or serious injury. |
