IDEC SmartRelay functions
212 IDEC SmartRelay Manual
4.4.27 Analog Ramp Control
Short description
The Analog ramp control instruction allows the output to be
chang
ed from the current level to the selected level at a
specified rate.
Symbol in IDEC
SmartRelay
Wiring Description
Input En A change in the status from 0 to 1 at
input En (Enable) applies the start/
stop
level (Offset ”B” + StSp) to the
output for 100 ms and starts the ramp
operation to the selected level.
A change in the status from 1 to 0
immediately sets the current level to
Offset ”B”, which makes output AQ
equal to 0.
Input Sel SeI = 0: Level 1 is selected
SeI = 1: Level 2 is selected
A change in status of Sel causes the
current level to start changing to the
selected level at the specified rate.
Input St A change in the status from 0 to 1 at
input St (Decelerated Stop) causes
the current level to decrease at a
constant rate until the start/stop level
(Offset ”B” + StSp) is reached. The
start/stop level is maintained for
100ms and then the current level is
set to Offset ”B”, which makes output
AQ equal to 0.
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