Solar Lattice

Measurement

CT calibration event code

ID
meas:ct-calibration-event
IRI
https://solarlattice.org/kb/meas/ct-calibration-event
Status
active
Also known as
ct cal

This signature is a 'ct cal' event that the inverter logs during automatic current transformer detection. It appears in the Generac PWRcell troubleshooting table. Codes 0x8061 to 0x8067 mean that one or more lines (Line 1, 2 or 3, alone or in combination) do not have a valid CT calibration. Codes 0x8069 to 0x806F mean that a line has more than one CT, a CT is missing, or a CT has been placed on the neutral wire. The suffix after 'ct cal' (1 to 7, or 9 and A to F) shows which line or lines are affected, so you can tell which CT to check. These codes point to an incorrect current transformer installation, such as a missing CT, a duplicated CT or a CT on the neutral. The 'ct cal success' event, code 0x8070, confirms that calibration worked. Look for it after you correct the CT placement.

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