Carel pRack PR100

pRack +040000071 rel. 1.1 - 14.10.2011
35
ENG
I/O list for each board
Digital outputs
NO1 Compressor 1 NO4 Compressor 4
NO2 Compressor 2 NO5 Fan
NO3 Compressor 3 NO6 Alarms output
Digital inputs
ID1 Suction HP pressostat
ID2 Suction LP pressostat
ID3 Compressor 1, thermal overload alarm
ID4 Compressor 1, oil diff erential alarm
ID5 Compressor 1, HP/LP alarm
ID6 Compressor 2, thermal overload alarm
ID7 Compressor 2, oil diff erential alarm
ID8 Compressor 2, HP/LP alarm
ID9 Compressor 3, thermal overload alarm
ID10 Compressor 3, oil diff erential alarm
ID11 Compressor 3, HP/LP alarm
ID12 Compressor 4, thermal overload alarm ID15 Common fan overload
ID13 Compressor 4, oil diff erential alarm ID16 Compressor inverter alarm
ID14 Compressor 4, HP/LP alarm ID17 Condenser inverter alarm
Analog outputs
Y1 First compressor inverter 0...10 Vdc
Y2 Common condenser inverter 0...10 Vdc
Analog inputs
B1 Suction pressure probe 4...20 mA -0.5...7.0 barg
B2 Condensing pressure probe 4...20 mA 0.0...30.0 barg
B3 Suction temperature probe NTC
B4 Discharge temperature probe HTNTC
B5 – solo linea 1 External temperature probe NTC
Tab. 2.z
Main parameters
Parameter Mask index Value
Suction regulation by Cab01/ Cbb01
PRESSURE
Suction regulation type Cab01/ Cbb01
NEUTRAL ZONE
Suction setpoint Cab03/ Cbb03 3.5,barg
Suction diff erential Cab05/ Cbb05 0.3 barg
Compressors rotation type Caf10/ Cbf10 FIFO
Refrigerant Caf04/ Cbf04 R404A
High suction pressure alarm threshold Cae24/ Cbe24 6.0 barg
Low suction pressure alarm threshold Cae26/ Cbe26 0.0 barg
Condenser regulation by Dab01 /Dbb01
PRESSURE
Condenser regulation type Dab01 /Dbb01
PROPORTIONAL BAND
Condenser setpoint Dab03/ Dbb03 12.0 barg
Condenser diff erential Dab07/ Dbb07 2.0 barg
High condenser pressure alarm threshold Dae01/ Dbe01 24.0 barg
Low condenser pressure alarm threshold Dae03/ Dbe03 7.0 barg
Tab. 2.aa