Discrete Input to deactivate Gen. Voltage and Frequency for certain time [in seconds]
Example solution as follows…
Prepare Volt-/Freq. Monitoring parameters
(instead of „Always“ or „LM:Rel.Eng.Monitoring“ enabled, here put Flags accordingly)
Prepare an internal AM to generate a ONE SHOT pulse
L1 = Discrete input that triggers the pulse
C1 = time in seconds, the pulse shall be ON
This pulse defines the time how long the V/f-monitoring shall deactivate in the end.
Prepare the Flags #1 and #2
Flag 1
(TRUE as long as logical state of AM#3 is FALSE. i.e. the linked monitors stay normally always active)
Flag 2
(TRUE as long as LM:Rel.Engine monitor is released AND logical state of AM#3 is FALSE. i.e. to keep the default dependency of Engine Monitor release, plus the AM#3 state. So, the linked monitors stay normally always active after engine monitor delay time)
Now, if DI#9 latches the one shot pulse in AM#3, the Volt. / Freq. Monitoring gets inactive for the configured time in C1 in AM#3