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2857-570/024-001
Diagnostics
Product manual | Version: 2.0.0
75
3-Phase Power Measurement Module, 1 A
9
Diagnostics
Protection against Hazardous Touch Voltages
No hazardous touch voltage is produced when the signal conditioner is used with appro-
priate current transformers according to the specifications. Secondary voltage is a low
voltage level. The following fault cases can result in high voltage levels:
• Open current path for one or more transformers
• General insulation fault
Negative Power Values
If power measurements yield negative power values, check whether you have connected
the corresponding current transformer or Rogowski coil with the correct orientation.