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Cannot read voltage values on Sepam 20

Issue
Sepam 20 does not show voltage values on the front display or via communications

Product Line
Sepam series 20

Environment
Measurements

Resolution
Sepam 20 relays measure voltage OR current.

Sepam 20 models that use current transformer (CT) or low power current transformer (LPCT) sensors measure current and not voltage. Models that measure current only are S20, S24, T20, T24, and M20 (please refer to table below)
‚ÄčSepam 20 models that use voltage transformer (VT) sensors measure voltage and not current. Models that measure voltage only are B21 and B22 (please refer to table below)

ApplicationTypeSensor
SubstationS20CT or LPCT
S24CT or LPCT
TransformerT20CT or LPCT
T24CT or LPCT
MotorM20CT or LPCT
BusbarB21 VT
B22VT
* Table is an excerpt from "Order Form Sepam 20", available from the Schneider Electric website: https://www.se.com/ww/en/download/document/order_form_sepam_series_20/

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Range:
Sepam series 20
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Range:
Sepam series 20
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