ABB RELION REC615 Operation Manual page 142

Section 8
Commissioning
134
After a composition change, an LCT indication is seen on the LHMI at the protection
relay startup. The PCM600 reads the changed data from the protection relay.
Therefore a connection to the protection relay must be established first. Composition
data can be read with PCM600 by enabling LCT during PCM600 installation and
activating collection in PCM600 from 'Lifecycle Handling' menu. For detailed
information see PCM600 online help.
The LCT indication is cleared in the same way as other indications. If composition
data is not collected with PCM600, the indication reappears after protection relay's
reboot.
If the LCT indication appears, update the protection relay
composition to avoid information mismatch. The LCT indication does
not affect the functionality of the protection relay.
A071266 V2 EN
Figure 101: LCT indication
The number of composition changes can be seen from the Composition changes
parameter in Main Menu/Monitoring/IED status.
1MRS758754 B
REC615 and RER615
Operation Manual