Phoenix Contact SCK-M-U-1500V Handleiding (128 Pagina's)

Handleiding

SCK-C-MODBUS SOLARCHECK communication module

105608_en_02 PHOENIX CONTACT 37

5.4 Power supply

In addition to collecting data, the communication module also supplies power to the con-

nected measuring modules. The power supply for the communication module and the con-

nected measuring modules therefore has to be incorporated in the design.

– Input voltage: 24 V DC (-10% ... +25%)

– For current consumption, all connected measuring modules must also be taken into

consideration.

Let us assume 20 mA for the communication module and the sum of the typical current con-

sumption of all connected measuring modules. To account for current peaks, multiply the

result by 3. For input voltages other than 24 V DC, refer to the current consumption charts

for the modules in Section “Design of the power supply” on page 60.

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