domat US100
05/2018 Subject to technical changes..
1
US100
Communicative heating controller
with sunblind control
Summary
US100 is a communicative room heating controller with one PWM output for
control of a radiator or electrical heater, and two digital outputs for sunblind
motor control. It can work autonomously, or in connection to a primary
controller (MiniPLC or SoftPLC), or to a building management system (RcWare
Vision or any SCADA).
Application
▪
Systems with radiators, or electric heaters
–
control and measuring of
room temperature, sunblind manual control and central override
▪
monitoring and communication of room temperatures
Function
The controller reads actual room temperature, setpoint set by the pusbuttons, and set
operation status which is set by short push of the central button. The room
temperature is measured in the range of -20 to +50
°C. Measured and set values are
processed in a PI algorithm, at the output of which there is a PWM controlled triac. All
values are displayed on a large LCD display.
The output works either as PWM controlled by a PI controller, or on/off (thermostat).
The functionality and control parameters, i.e. P and I constants, and hysteresis, can be
set with
ModComTool
, the configuration software, which is free to download at
http://domat-int.com/en/downloads/software
The digital input may be configured as a window contact (switches to Off) or presence
contact (switches to Standby/Night). It may be set as normally open or normally
closed.
The sunblinds are controlled by the „up“ and „down“ buttons. It is possible to control
the sunblind operation as central building function, such as „fully closed“ at n
ight time,
„fully open“ at strong wind, etc. Those commands must be programmed in the BMS
and communicated over the RS485 bus to the controller.
