Sel 411L - Figure 12.12 HMI Disconnect Operation in Progress

P.12.22
SEL-411L Relay Protection Manual Date Code 20151029
Bay Control
Bay Control Front-Panel Operations
Figure 12.12 HMI Disconnect Operation in Progress
When you initially enter the disconnect control screen, the disconnect switch
is in one of four states: disconnect open (89OPNm), disconnect closed
(89CLm), disconnect undetermined without alarm (89OIPm), or disconnect
undetermined with alarm (89ALm). If Relay Word bit 89OIPm is asserted, the
relay displays the screen in Figure 12.12 (a); if Relay Word bit 89ALm is
asserted, the relay displays the screen in Figure 12.13 (a). If both Relay Word
bits 89OIPm and 89ALm are asserted, Relay Word bit 89ALm takes priority. If
Relay Word bit 89OPNm is asserted, the relay displays the screen in
Figure 12.11 (a). This is the initial screen for an open-to-close operation. If
Relay Word bit 89CLm is asserted, the relay displays the screen in
Figure 12.13 (b). This is the initial screen for a close-to-open operation.
(b) Disconnect Control Screen
After one second, return
to the previous screen
BAYNAME
OPEN DISCONNECT
CLOSE DISCONNECT
*NOT ALLOWED*
IN
PROGRESS
<DmCTLN>
BAYNAME
OPEN DISCONNECT
CLOSE DISCONNECT
IN
PROGRESS
<DmCTLN>
IN PROGRESS
IN PROGRESS
(a) Disconnect Control Screen
89OPN01 deasserted
and 89OIP01 asserted
ENTER pressed
with 89OIP asserted