Proface GP4600R - 12.1 Standard HMIs with Rear Mounting Options" User Manual
Page 148
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Installation and Wiring
148
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Ground the surge absorber (E1) separately from the GP unit (E2).
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Select a surge absorber that has a maximum circuit voltage greater than that of
the peak voltage of the power supply.
If the supplied voltage exceeds the GP unit range, connect a constant voltage
transformer.
1
Constant voltage transformer
2
Twisted-pair cord
3
GP unit
Select a power supply low in noise for between the line and ground. If there is an
excess amount of noise, connect an insulating transformer.
1
Insulating transformer
2
Twisted-pair cord
3
GP unit
NOTE:
Use constant voltage and insulating transformers with capacities exceeding
the Power Consumption value.
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