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IC 40 function > Analogue operating modes 21 – 27
4.6.4 2-point operation with switchover of the
running times
Operating mode 24
Digital input DI 1 functions as a pulse input. The actuator
operates in analogue/low (analogue/closed)
intermittent mode via DI 1.
In idle state (DI 1 with no signal), the actuator is in “low”
position.(“low” position may also be 0° = “closed”
position).
The adjustment angle for the “open” position which can
be varied via the analogue signal is set in BCSoft®.
Example: 4 mA for 60% opening and 20 mA for 100%
opening.
Depending on adjustment angle for the “open” position,
the heat output can be reduced and a uniform
temperature distribution in the furnace or kiln can be
achieved nevertheless owing to intermittent operation of
the burner.
The running times are switched over via DI 2.
The running times can also be switched over in ongoing
operation
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