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IC 40 function > Standard operating modes 1 – 12
4.5.8 2-point operation with input-dependent
adjustment angle for the “open” position
Operating mode 8
The function corresponds to operating mode 7 apart
from the fact that both digital inputs function as pulse
inputs.
The actuator operates in high/low (high/closed)
intermittent mode via digital input DI 1 and operates in
middle/low (mid-dle/closed) mode via DI 2.
A signal at DI 1 (priority) always leads to approaching
to “high” position which, for instance, can be used to
purge the furnace or kiln.
Alternative function: 2-step operation with constant
speed.
For as long as a signal is applied to DI 2, DI 1 switches
to and fro between “high” and “middle” position.
This mode of operation ensures that the actuator
always opens or closes at constant speed.
Possible parameter set for this operating mode: P 6802,
see page 54 (Parameter sets).
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