TCY3-T1102 Engineering Manual
Doc: 70-000003 V1.0, 20150710 © Vector Controls GmbH, Switzerland Page 13
Subject to alteration
Accuracy in Kelvin, Temperature Input
Input configuration
General
Alarms: Each input features low and high limit alarms. Each alarm is defined with a limit, a hysteresis and an enable
parameter. The limit specifies the input signal level required to trigger the alarm. The hysteresis defines the difference
between input signal and limit required to return the alarm state to normal.
Averaging function: Some sensor signals (for example air flow sensors) tend to fluctuate. The controller measures
every second the signal inputs. Select how many values should be used to calculate the averaging signal (too many
samples for an averaging signal may increase the swinging tendency, increase reset time on PI signals in this case).
Compensation: Adjust input values if required
Temperature input
The TCY3 includes an NTC-based passive temperature sensor. It is
possible to use an external sensor of the same kind by connecting it to
the thermistor input. Specified accuracy can only be guaranteed by
using a manufacturer approved temperature sensor. For best results use
Sxx-Tn10 sensors. Choose the active input in software with IP00.
Accuracy temperature inputs:
Auto changeover:
The external temperature input may be used as controls or auto-
changeover input. In auto-changeover mode the external input is used
to automatically determine heating or cooling mode. Connect a qualified
passive sensor to the external input and measure the temperature of the
supply media. Heating or cooling mode is activated once the supply
temperature is above or below the respective limits. The limits may be defined in software. Standard is 16 °C (60 °F) for
cooling and 28 °C (82 °F) for heating.
Binary input
The binary input may be used to toggle comfort and standby modes, comfort and OFF modes or heat and cool mode. The
operation mode change is useful to save energy if used together with key card switches for hotels or motion detectors for
offices.
Activation delay: Defines the delay the binary contact has to be open before off or standby mode is activated.
Remote enable:
The unit may be remotely controlled by using the binary input as open contact input in open contact mode. Opening the
binary input will force the unit into the OFF operation mode. The operation mode cannot be overridden by using the
terminal or time schedules. Activating the digital input returns control of the operation mode to the terminal and time
schedule.
Occupation sensor
Remotely control comfort and standby mode for example with an occupation sensor or key switch. If the binary input is
deactivated for a selectable time the unit will change to standby mode. For a key switch, set delay time to 0.
Heat / cool change
Control heat and cool setting of your controller from a central location. Note: all ground levels of involved controllers must
be the same. Choose if heat or cool is to be active when contact is open.
Alarm input
Activating the input will trigger an alarm. Action taken may be specified for each output individually.
Analog inputs:
The analog input signal may be configured with a jumper to 0-10 V, 0-5 V and 4-20 mA. The jumper is
located on the front side of the power part. 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.
The display value of the input signal may be specified. For example a pressure sensor has a 4-20 mA output
and a pressure range of 0 – 200 Pa. It is possible to transform the input signal into a different dimension by
setting the minimum and maximum transformation value in the input configuration setup. In our example the
display will read 100 for a 12 mA signal. Range values below 100 will have a resolution of 0.5, below 50 of
0.2 and below 25 of 0.1.
Humidity input (-H version)
The TCY3-T1102-H includes a capacitive-based humidity sensor with 3% accuracy. The sensor may be used as control
input, as feedback or display input. It will replace the analog input on loop 2, if configured as control input.
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