TCI-C-Universal Controller
Doc: 70-00-0123, Date: 20091020 © Vector Controls GmbH Page 14
Heating
Cooling
100
75
0
T [°C, F]
U [V, mA]
Y
H1
, Y
R1
W
H
X
DZ
Y
C1,
Y
D1
W
C
Output Configuration
General
An output must be assigned to a function or a control loop using the xA, xD parameter set. Assigning an output to a
control sequence will automatically activate the respective sequence. Unassigned functions and sequences are not active.
Alarm function
The alarm setting defines how the output should respond to a specific alarm
condition. In case of an alarm the output may be switched on (100%) or off (0%).
The alarm situation takes precedence over operating state and calculated output
signal.
Two parameters define the behavior of the output in case of an alarm: One
parameter defines which alarm deactivates the output, the other parameter defines during which alarms the output is fully
activated. Each alarm can be individually selected. Should one alarm be simultaneously selected to activate and
deactivate the output, the one to de-activate has precedence.
Analog Output
The analog output may be configured with jumpers for 0-10 VDC or 0-20 mA control signals. The jumper is
located on the back side of the controller. The controller needs to be removed in order to give access to jumpers.
The drawing on the right indicates the jumper placement for each signal type. The factory setting is 0-10 VDC.
Only place the jumper vertically. Only place one jumper for one signal. The signal range can be specified in
software by setting a minimum and a maximum limit. The limits are in percent of the full range.
Special functions of the analog output:
Manual Positions the output directly with a set point. The number of positioning steps can be
selected: 2, 10, 100 steps
Dehumidifying
(only for 4-pipe systems)
The maximum value is taken of both direct acting PID sequences (Cooling and
dehumidifying). Cooling will start to operate if the humidity gets too high, even if there is
no cooling need, thus the heating will be forced to come into play, which in turn
dehumidifies the air.
VAV The cooling output is increased parallel to the heating output but limited to a maximum
value while heating is active. This is used in VAV systems to supply fresh air in the heating
season in case heat is provided through radiators or floor heating.
Sensor and setpoint
feedback
Values of universal inputs as well as set points of control loops may be transmitted on the
analog outputs. Minimum and maximum value of the feedback value may be set for each
output.
AO
0…10V
0…20mA
█
Priority for output control
1. Alarm level low
2. Alarm level high
3. Operation mode OFF
4. Control function
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