ABB RELION 620 Series Technical Manual page 834

Section 12
General function block features
828
A070422-ANSI V1 EN
Figure 423: Operating effect of the BLOCK input when the selected blocking mode is
"Freeze timer"
If the BLOCK input is activated when the trip timer is running, as described in
the timer is frozen during the time BLOCK remains active. If the timer input is not active
longer than specified by the Reset delay time setting, the trip timer is reset in the same way
as described in Figure 421, regardless of the BLOCK input.
The selected blocking mode is "Freeze timer".
1MAC504801-IB E
Figure 423,
620 series ANSI
Technical Manual