industrie technik TH-xxxSx1 Series, Руководство пользователя

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The regulation logic is as follows:
Temp.
BHS
(
I07
)
PBH
(
I22
)
100
0
Output valve
speed 1
% opening
valve
Fan
speed 3
(
I25
)
0% 100%
speed 2
(
I26
)
(
I27
)
AO1
DO1
DO2
DO3
If the operating temperature drops below
I07
, the valve starts opening (output AO1 ). Icon turns on.
The valve can be regulated with PI action if the integral time
I24
is non-zero or with only proportional action if
I24
=0.
The fan starts when the valve reaches the aperture defined in
I25
and after startup delay
I36
.
If the temperature continues falling, the speed switches from speed 1 to speed 2 when the valve reaches the aperture
given in
I26
. The speed switches from speed 2 to speed 3 when the valve reaches the aperture given in
I27
.
Each speed is subject to a hysteresis of 20% of its activation point.
For example, for speed 3:
if
I27
=100%, speed 3 is activated when the valve reaches fully open and is deactivated when the valve closes by 20%
of
I27
, which is 80% of fully open in this case.
Icon turns off when the valve closes again, in which case the fan stops if
I28
=0 or 2. The fan maintains speed 1 if
I28
=1 or 3.
The fan maintains speed selected manually if
I28
=4 or 6.
N.B.: if the minimum thermostat function is in use, the thermostat itself must be closed when the valve is in regulation,
otherwise the fan will not start.
Cooling regulation is controlled as follows for 2 pipe heating/cooling mode (
M01
=2, 3, 4):
The “ COOL ” icon is on to indicate that cooling mode is active.
The regulation logic is as follows:
Temp.
100
0
BCS
(
I08
)
PBC
(
I23
)
Output valve
speed 1
Fan
speed 3
speed 2
(
I25
)
0% 100%
(
I26
)
(
I27
)
% opening
valve
AO1
DO1
DO2
DO3
If the operating temperature rises above
I08
the valve starts opening (output AO1 ). Icon turns on.
The valve can be regulated with PI action if the integral time
I24
is non-zero or with only proportional action if
I24
=0.