Danfoss MCX08M User Manual

Danfoss Electronics spa
Air Handling seq.- user manual
DKRCC.PS.RI.A1.02 / 520H4358 - Air Handling Seq. user manual - V 2.2
Produced by Danfoss Electronics spa Graphic Department, 10-2009
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6.2| Heat and cool control sequences
There are 2 possible heat control sequences, HS1 and HS2, and 1 cool control sequence, CS1, which can be used to
control coils (see “4.1] Assign a control sequence to a coil”).
Each control sequence is congured using the following parameters:
HEAT AND COOL CONTROL SEQUENCES
TCT Temp Control Min Max Default U.M. Text value
HS1 Heat Sequence 1
H11 Control probe 1 8 REt NO;SUP;REt;OUt;tH1;tH2;tC1;tC2
H12 Setpoint 1 4 MAIN MAIN;CASC;LS1;LS2;FRH
H13 Oset 0,0 10,0 0,0 K
H14 Proportional band 0,1 20,0 3,0 K
H15 Integral time 0 9999 0 SEC
H16 Derivative time 0 9999 0 SEC
CS1 Cool Sequence 1
C11 Control probe 1 8 REt NO;SUP;REt;OUt;tH1;tH2;tC1;tC2
C12 Setpoint 1 4 MAIN MAIN;CASC;LS1;LS2;FRC
C13 Oset 0,0 10,0 0,0 K
C14 Proportional band 0,1 20,0 2,0 K
C15 Integral time 0 9999 0 SEC
C16 Derivative time 0 9999 0 SEC
HS2 Heat Sequence 2
H21 Control probe 1 8 SUP NO;SUP;REt;OUt;tH1;tH2;tC1;tC2
H22 Setpoint 1 4 LS1 MAIN;CASC;LS1;LS2,FRH;HS1
H23 Oset 0,0 10,0 0,0 K
H24 Proportional band 0,1 20,0 3,0 K
H25 Integral time 0 9999 0 SEC
H26 Derivative time 0 9999 0 SEC
Tab 26_ [Temperature control sequences - Heat and cool control sequences]
For each control sequence you have to dene respectively:
H11, C01, H21: the control probe.
H12, C02, H21: the setpoint used. Possible values are:
MAIN: main setpoint (STH for heating and STC for cooling, eventually compensated), see “6.4 Main setpoint”
CASC:supply temperature setpoint coming from the cascade controller (see “7 Cascade Control”).
LS1: local setpoint LS1, see “6.5 Local setpoint”
LS2: local setpoint LS2, see “6.5 Local setpoint”
FRC: connected to the setpoint of the Freecooling Sequence (only for Cool
Sequence 1). See “6.3 Connection of setpoint sequences”.
FRH: connected to the setpoint of the Freeheating Sequence (only for
Heat Sequence 1). See “6.3 Connection of setpoint sequences”.
HS1: connected to the setpoint of the Heat Sequence 1 (only for the Heat
Sequence 2). See “6.3 Connection of setpoint sequences”.
H13, C03, H23: oset of the used setpoint. See “6.3 Connection of setpoint sequences”.
H14, C04, H24: proportional band of the PID control.
H15, C05, H25: integral time of the PID control.
H16, C06, H26: derivative time of the PID control.
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Danfoss MCX08M Specifications

General

Brand	Danfoss
Model	MCX08M
Category	Controller
Language	English