1592001530 XC15-35CX EN r1.2 11.04.2017 XC15-35CX
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16.4 PROPORTIONAL BAND REGULATION
This kind of regulation is available only for ON-OFF compressors (
oA1=CP1
and
oA2=CP2
)
and if par.
rtY=Pbr
The activation of compressors follows this chart:
16.4.1
COMPRESSOR ROTATION
This function is available in case of compressors of equal power and if
CPo=SPo
.
By using this function (par.
roC=YES
) is possible to equalize the compressor working hours.
16.5 VENTILATOR REGULATION
This device is able to manage the following type of ventilators:
-
ON-OFF (standard by using par.
oA1=Fn1
or par.
oA2=Fn2
)
-
ON-OFF in phase-cut mode (by using the internal TRIAC,
oA3=PCF
)
-
Electronic type (driven by a voltage command signal, 0-10Vdc type)
The regulation probe is the one set in par.
FPb
.
If a couple of ventilator outputs are set, it is possible to enable the rotation function (par.
roF=YES
) in order to equalize the ventilator working hours.
16.5.1
ON-OFF VENTILATORS
It is possible to drive a max number of 2 ON-OFF ventilators by setting par.
oA1=Fn1
and
oA2=Fn2
.
When only one ventilator is set, then:
-
It is activated when
VAL > St2+HY2
-
It is deactivated when
VAL < St2
If two ON-OFF ventilators are set (
oA1=Fn1
and
oA2=Fn2
) then:
-
If
VAL < St2-0.5*HY2
both ventilators are deactivated
-
If
St2-0.5*HY2 < VAL < St2+0.5*HY2
then only a ventilator is activated (depending
on the par.
roF
)
-
If
VAL > St2+0.5*HY2
then both ventilators are activated
16.5.2
PHASE-CUT CONTROL FOR VENTILATORS
It is possible to modulate the ventilator speed by using a phase-cut mode control. This
functionality is enabled when par.
oA3=PCF
. The regulation will be proportional to the
regulation band and by using the value from probe
FPb
. The max number of managed
ventilators depends on the maximum issued current which is 2.2A@230VAC.
The parameters involved are:
Summary of Contents for Dixell XC15CX
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