Selecting an External 24 Vdc Power Supply
Characteristics of the 24 Vdc Power Supply
The TM7 System requires power supplies with a nominal voltage of 24 Vdc. The 24 Vdc power supplies must be rated Protective Extra Low Voltage (PELV) according to IEC 61140. These power supplies are isolated between the electrical input and output circuits of the power supply.
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. |
