TCY3-T1102 Engineering Manual
Doc: 70-000003 V1.0, 20150710 © Vector Controls GmbH, Switzerland Page 11
Subject to alteration
Control functions
Control loop 1 (temperature loop: uses either internal or external passive temperature sensor)
Control loop 2 (uses analog input or internal humidity sensor (-H version only))
Each control loop may utilize 2 PID control sequence functions. The sequence will be activated once it is assigned
to a physical or logical output.
Manipulation of the set point
Standby set point shift X
SBY
: This function shifts the set point while the operation mode is standby. The heating set
point W
H
is reduced and the cooling set point W
C
increased by the value of the standby set point shift X
SBY
.
Dead zone span X
DZ
: The dead zone span lies between the heating and the cooling set point.
Minimum and maximum set point limits: Limits the adjustable range of the loop set point. The limits for heating and
cooling sequence may be chosen individually.
Cascade control: The output of the primary control loop determines the set point of the secondary control loop. It is
possible to choose only the direct or reverse sequence or both of them. The output of the set point providing control loop
is spanned between the minimum and maximum set point limits. The set point limits for heating and cooling sequence are
defined individually.
Summer – winter compensation: Shift the set point either towards the set point minimum (negative shift) or the set
point maximum (positive shift) depending on a compensation input signal. This is done to compensate the set point for a
change in the environment. It is most commonly applied to outside temperature.
The winter compensation is active when the outside temperature drops below the upper limit of winter compensation. The
maximal compensation is reached when the temperature reaches the lower limit. The actual set point will in this case be
equal to the minimum set point limit for a negative shift or the maximum set point limit for a positive shift.
The summer compensation is active when the outside temperature exceeds the lower limit for summer compensation. It
reaches its maximum when the temperature equals the upper limit.
Example: Summer – winter compensation active in loop 1. 1L07 = 3
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