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1143W24E4.00 · EV3 200 Web
03/2021
| 27 |
7. REGULATORS
7.1 HEATING/COOLING TEMPERATURE
The temperature regulation configuration parameters are:
Par. Description
MU
Range
r0 Cooling regulation differential; temperature to be added to the setpoint (Setpoint + r0)
°C/°F
0.1...25.0
r1 Minimum value attributable to setpoint.
°C/°F
-30.0...r2
r2 Maximum value attributable to setpoint.
°C/°F
r1...99.0
r12 Differential position r0. 0
=Asymmetrical;
1 = Symmetrical.
---
0/1
u7 Neutral zone threshold for heating.
°C/°F
-99.0...99.0
7.1.1 Operation
The controller manages the temperature according to the type of request (heating/cooling).
°C/°F
Con r5 = 0
r0
Setpoint
Setpoint
°C/°F
Con r5 = 1
Setpoint - u7 + 2°
Fig. 27.
Operation of temperature regulator
Cooling
If the controller receives a cooling request:
• Cooling output (Compressor) between Se r0 and Setpoint .
When the temperature read by Pb1 reaches the value of Se r0
,thecontrolleractivatesthecompressoroutputtocool
until the temperature goes below the threshold set by Setpoint.
Heating
If the controller receives a heating request:
• Heating output (Heaters) between Setpoint and
Setpoint - u7+ 2°
.
When the temperature read by Pb1 reaches the value of
Setpoint - u7
,thecontrolleractivatestheheateroutputtoproduce
heat until the temperature goes above the threshold set by
Setpoint - u7 + 2°
.
7.2 HEATING/COOLING TEMPERATURE IN THE NEUTRAL ZONE
The temperature regulation configuration parameters in the neutral zone are:
Par. Description
MU
Range
r0 Cooling regulation differential; temperature to be added to the setpoint (Setpoint + r0)
°C/°F
0.1...25.0
r1 Minimum value attributable to setpoint.
°C/°F
-30.0...r2
r2 Maximum value attributable to setpoint.
°C/°F
r1...99.0
u7 Neutral zone threshold for heating.
°C/°F
-99.0...99.0
7.2.1 Operation
Regulation in the neutral zone is activated if r11
≠0(if
r11
<0,theneutralzoneisactivatedwithaheatingrequest).
Setpoint
°C/°F
Se r0
Setpoint - u7 + 2°
Setpoint - u7
Fig. 28.
Operation of temperature regulator in the neutral zone