SIT SITRANS RD300RANS RD300
Page 48
SITRANS RD300 – OPERATING INSTRUCTIONS
A5E31917845
Time Delay Operation
The following graphs show the operation of the time delay function.
When the signal crosses the set point, the
On
time delay timer starts
and the relay trips when the time delay has elapsed. If the signal drops
below the set point (high alarm) before the time delay has elapsed, the
On
time delay timer resets and the relay does not change state. The
same principle applies to the
Off
time delay.
Note: If “Automatic or Manual (
A-nmAn
)” reset mode is selected,
the LED follows the reset point and not the relay state when the
relay is acknowledged.