7 Setup Program
82 IMAGO F3000 / 10.01
7.7.8 Fan control
The speed control and the response to speed changes are defined here for a
fan with up to 3 stages.
Timing
The fan control follows the given speed stages in the segments (through con-
trol contacts), taking into account the run-up and run-down times.
2-stage fan
For 2-stage fans, the lower speed should be defined as stage 2, and the higher
speed as stage 3. The behavior will then be analog to that above (activate
stage 1 = switch off).
If several inputs have a simultaneous influence on the fan control function,
then the output is the highest stage for the fan speed.
If, for instance, stages 1 and 2 are simultaneously activated by inputs, then
only the output for stage 2 will be activated.
Selection/settings Description
Fan control
OFF The function is switched on or off here.
ON
Run-up time 0 —9999sec
Defines the time for the fan to run at stage 2 when
the speed is increased.
Run-down time 0 —9999sec
Defines the time during which the fan is switched
off when the speed is reduced.
Activate
stage 1 — 3
Switched off Signal to control the fan speed.
(Logic selector)
k / bold = factory setting
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