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IC 40 function > Standard operating modes 1 – 12
The opening speed is pre-set via the running time t1 for
the entire “low” to “high” actuating travel. Accordingly,
the clos-ing speed is set with t2 for the entire “high” to
“low” actuating travel. The speeds are retained when
switching with reduced capacity (signal at DI 2). The
running time is shortened in ac-cordance with the
reduced position.
Alternative function (2-step operation with constant
speed):
For as long as a signal is applied to DI 1, DI 2 switches to
and fro between “high” and “middle” position. In this
case, it may be practical to invert the logic of digital
input DI 2, see page 57 (Switching logic).
This mode of operation ensures that the actuator always
opens or closes at constant speed.
Possible parameter set for this operating mode: P 68023,
see page 54 (Parameter sets). 33
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