Alstom MiCOM P546 - Timer properties; Gate properties or

P54x/EN PL/La4 Programmable Logic
(PL) 7-14 MiCOM P543, P544, P545 & P546
1.6.15 Timer properties
Each timer
can be selected for pick up, drop off, dwell, pulse or pick-up/drop-off operation.
1.
Choose the operation mode from the Timer Mode tick list.
2. Set the Pick-up Time (in milliseconds), if required.
3. Set the Drop-off Time (in milliseconds), if required.
1.6.16 Gate properties or
A Gate may be an AND, O
R, or programmable gate.
An AND gate requires that all inputs are TRUE for the output to be TRUE.
An OR gate requires that one or more input is TRUE for the output to be TRUE.
A Programmable gate requires that the number of inputs that are TRUE is equal to or
greater than its ‘Inputs to Trigger’ setting for the output to be TRUE.
PL