7.2.- Neutral zone mode
WITHOUT FREQUENCY CONVERTER
In this mode, a neutral zone is defined, whose lower limit is the Set Point minus the bandwidth, and whose upper
limit is the Set Point plus the bandwidth. While the reading of probe 2 remains in that zone, no fans are connected
or disconnected.
If the upper limit is exceeded, the controller activates the different fans separated by the interval defined in
parameter
t07
(red line) until returning to the neutral zone.
If the lower limit is exceeded, the controller deactivates the different fans separated by the interval defined in
parameter
t08
(green line) until returning to the neutral zone.
In order to deactivate a fan, the interval
t05
must have passed, and interval
t06
defines the minimum interval
between starts of the same stage/compressor.
SP+F06
Upper limit
Lower limit
NEUTRAL ZONE
SP-F06
SP
Fans
Fan 1
ON
Fan 2
ON
Fan 3
ON
Fan 4
ON
t07
t07
t08
t08
Direct
operation (
C07
=0)
Inverse
operation (
C07
=1)
Pressure in Probe 2
F01
F01
14
1454H502 Ed.03
Summary of Contents for AKO-14545
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