ABB RELION Series Technical Manual page 344

Section 4
Protection functions
338
GUID-C847609F-E261-4265-A1D9-3C449F8672A1 V2 EN
Figure 171: Admittance characteristic with different operation modes when
Directional mode = "Reverse"
Timer
Once activated, the timer activates the START output. The time characteristic is
according to DT. When the operation timer has reached the value set with the Operate
delay time setting, the OPERATE output is activated. If the fault disappears before the
module operates, the reset timer is activated. If the reset timer reaches the value set
with the Reset delay time setting, the operation timer resets and the START output is
1MRS758755 A
REC615 and RER615
Technical Manual