Ametek MP3 SCR DeviceNet Head, Hdr Hmi Manual

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3.12.1 Main Menu >> Service-Parameter Configuration Menu >> SCR DATA
Vin and Vout potential transformers must be wired using the appropriate voltage taps.
Use the values of the SCR input and output when the input voltage is at 100% of the
nominal voltage ratings. To display metering values correctly, the DSP must scale
the percentage values using parameters set by Vin PT Primary and Vout PT Primary,
corresponding to rated voltages.
As with the voltage measurements, the rated current range is required for the proper
display and interpretation of measured current data. Also, a parameter is used to
specify if the SCR assembly uses one or two current transformers (CTs). If only one
is used, the output current measurements will be based on data from a single CT. A
second CT is useful for current measurement applications like the secondary of an
output transformer.
3.12.2 Main Menu >> Service-Parameter Configuration Menu >> SCR Firing