Technische Alternative UVR 16x2 User Manual

PID control
113
Input variables
Enable
General enabling of the function (digital value ON/OFF)
Actual value,
absolute value control
Analogue input signal from the sensor which is to be kept constantly
at the set temperature
Set value
absolute value control
Analogue value specifying the required control temperature
Actual value (+)
differential ctrl
Analogue input signal from the warmer reference sensor (e.g. a
collector sensor) for differential control
Actual value (-)
differential ctrl
Analogue input signal from the cooler reference sensor (e.g. a
cylinder sensor) for differential control
Set value,
differential control
Analogue value specifying the required temperature differential
Activation value,
event control
Analogue input signal from the sensor at which an event is expected
Activation threshold,
event control
Analogue value specifying the activation threshold at the activation
sensor
Actual value, event control
Analogue input signal from the sensor which will be kept constant
after the occurrence of the event
Set value, event control
Analogue value specifying the set control temperature for event control
Proportional component
Analogue, dimensionless value between 0.0 and 100.0
The correcting variable is increased by one stage (increment) per X *
0.1 K deviation from the set value.
Integral component
Analogue, dimensionless value between 0.0 and 100.0
For every 1 K of deviation from the set value, the correcting variable
increases by one stage (increment) every X seconds.
Differential component
Analogue, dimensionless value between 0.0 and 100.0
If the actual value deviates from the set value at a rate of X * 0.1 K per
second, the correcting variable will be changed by one level.
Correcting variable
maximum
Maximum permissible correcting variable (maximum 100 for PWM or
0-10 V control)
Correcting variable
minimum
Minimum permissible correcting variable
Corr. var at start
Correcting variable after PID control is enabled (only effective if
integral component > 0)
➢ A typical result for such a DHW system (“Fresh water station”) with a fast sensor is PRO =
3, INT = 3, DIF = 1 for pumps with PWM signal. Another setting proven in practice is PRO =
3, INT = 1, DIF = 4 with the use of a particularly fast temperature sensor.

Technische Alternative UVR 16x2 Specifications

General

Brand	Technische Alternative
Model	UVR 16x2
Category	Controller
Language	English