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TControl POD glass EC
The “dew point” active contact blocks the cooling mode of the thermostat.
When the dew point is active, its symbol is automatically visible in the screen’s footer if it has been selected.
11.2.4. DEW POINT
11.2.5. ACCESS CARD
The dew point contact can be connected at the installer’s choice to:
²
universal input 1
²
input 2
The access card contact can only be connected to:
²
universal input 1
The dew point function is activated via the configuration of a digital input (address 18 or 19) or via Modbus
(address 258).
The “access card” function is only activated by configuring a digital input (Address 18)
The thermostat has a PI or discrete controller to regulate the heating and cooling demand. The adjusted
variable is delivered by the outputs.
11.3. HOT AND COLD CONTROL TYPE
11.3.1. PI CONTROL
The response time of the PI control is determined by parameters
Xp
and
Tn
. Depending on the proportional
band, the control variable reacts instantaneously to a deviation while the integral part reacts only with the
time of action. The result of the control variable is output as pulses at the outputs.
11.3.2. 2-POINT CONTROL
If the value falls below the setpoint minus half the hysteresis value, the heating output is activated. If the
value exceeds the setpoint plus the hysteresis threshold, the output is deactivated. The opposite applies for
the cold mode.
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