Analog channel configuration - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 19.09.2022

EFxPTOC has one analog group input which must be properly configured.

Table 1. Analog inputs

Input	Description
IRES	Residual current (measured or calculated)

There are a few special conditions which must be noted with the configuration.

Table 2. Special conditions

Condition	Description
IRES	If connected to IRES_MEAS (function RESTCTR), the residual channel saturation limit is 19 A and 55 A for secondary current setting range of 0.1...3 A and 3...10 A respectively. This should be considered when setting Start value for the function.

Improper analog channel configuration causes a validation error if the analog channels are not completely configured or they do not match with certain settings. For troubleshooting, check the contents of this chapter and also the preprocessing blocks in this document. The configuration can be written to the protection relay once the mismatch is corrected.