Table des Matières
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SOMMAIRE
Légende carte principale CPU MRS4-2
Légende carte de commande et d'affichage
Variation de vitesse
Ensemble des cartes
8.3 Signalisation
11.6 Commande d'automaticité
17 Protocole MODBUS MRS4 2
Raccordement pour liaison RS 485 2 fils
Raccordement pour liaison RS 485 4 fils
Annexe 1 : Signification des voyants
PAGE
3
3
4
5
6
7
8
8
8
9
9
3.5 Speed variation card (air cooled condenser)
9 à to 12
13
14
14 et and 16
16 et and 17
17
18
6.5 Control temperature laws as a function of external temperature
19
19
19
19
19
19 et and 20
21
21 et and 22
22 et and 24
24
24
25
25 et and 26
26
26
26 et and 27
27
11 Servo control and external controls
28
28
28
28
28
28
29
29 et and 30
30
30 à to 32
32 et and 33
34
34 à / to 36
37
38
39
2
SUMMARY
2 Composition
CPU MRS4-2 main card legend
Control and display panel card legend
Speed variation
3 Description
3.2 Control and display card
3.3 Remote control
4 Configuration
List of parameters
5 Operating mode
6.1 Type of control
6.2 Standard control
6.3 Control on the water outlet
6.4 Forced control with transfer
7 Study of functions
7.1 Control of chilled water temperature
7.2 Control of hot water temperature
7.3 Starting sequence
7.4 Automatic re-starting
7.5 Water circulation fault
7.8 Low temperature operating safety
7.9 Compressors safety
7.11 External fans
8.1 Characteristics
8.2 Sensor control
9 Compressors operating validation
10 Settings
10.1 Number of settings
10.2 Adjustment of settings
11.1 Water pump control
11.2 General fault
11.3 Heating / cooling selection
11.4 Setting 1 / setting 2 selection
11.5 Forced stages control
11.6 Automatic control
11.7 Client's connection of inputs
12 Test mode
13 Start up
14 Remote control
15 Relay card
RS 485 series liaison connection 2 wires
RS 485 series liaison connection 4 wires
Annex 1 : Significance of display lights
1 General
Set of cards
3.1 Main card
3.4 Relay card
6 Control
7.6 Frost limit
7.7 Load limit
7.10 Counting
8 Sensors
8.3 Indications
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Table des Matières
