Carel pRack PR100

pRack +040000071 rel. 1.1 - 14.10.2011
29
ENG
I/O List
Digital outputs
NO1 Screw compressor 1, line relay
NO2 Screw compressor 1, part winding
NO3 Screw compressor 1, CR1 valve
NO4 Screw compressor 1, CR2 valve
NO5 Screw compressor 2, line relay
NO6 Screw compressor 2, part winding
NO7 Screw compressor 2, CR1 valve
NO8 Screw compressor 2, CR2 valve
NO9 Fan 1
NO10 Alarms output
Digital inputs
ID1 Suction HP pressostat
ID2 Suction LP pressostat
ID3 Compressor 1, generic alarm
ID4 Compressor 1, oil fl ow warning
ID5 Compressor 2, generic alarm
ID6 Compressor 2, oil fl ow warning
ID7 Common fan overload
ID8 Condenser inverter alarm
Analog outputs
Y1 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 External temperature probe NTC
Tab. 2.t
Main parameters
Parameter Mask index Value
Suction regulation by Cab01
PRESSURE
Suction regulation type Cab01
NEUTRAL ZONE
Suction setpoint Cab03 3.5,barg
Suction diff erential Cab08 0.3 barg
Compressors rotation type Caf10 FIFO
Refrigerant Caf04 R404A
High suction pressure alarm threshold Cae24 6.0 barg
Low suction pressure alarm threshold Cae26 0.0 barg
Condenser regulation by Dab01
PRESSURE
Condenser regulation type Dab01
PROPORTIONAL BAND
Condenser setpoint Dab03 12.0 barg
Condenser diff erential Dab07 2.0 barg
High condenser pressure alarm threshold Dae01 24.0 barg
Low condenser pressure alarm threshold Dae03 7.0 barg
Tab. 2.u