pRack +040000071 rel. 1.1 - 14.10.2011
33
ENG
I/O List
Digital outputs
NO1 L1-Compressor 1 NO8 L2-Compressor 1
NO2 L1-Compressor 2 NO9 L2-Compressor 2
NO3 L1-Compressor 3 NO10 L2-Compressor 3
NO4 L1-Fan 1 NO11 L2-Fan 1
NO5 L1-Fan 2 NO12 L2-Fan 2
NO6 L1-Fan 3 NO13 L2-Fan 3
NO7 Common alarms output
Digital inputs
ID1 L1-Suction HP pressostat
ID2 L1-Suction LP pressostat
ID3 L1-Compressor 1, generic alarm
ID4 L1-Compressor 2, generic alarm
ID5 L1-Compressor 3, generic alarm
ID6 L1-Common fan overload
ID7 L2-Suction HP pressostat
ID8 L2-Suction LP pressostat
ID9 L2-Compressor 1, generic alarm
ID10 L2-Compressor 2, generic alarm
ID11 L2-Compressor 3, generic alarm
ID12 L2-Common fan overload
Analog inputs
B1 L1-Suction pressure probe 4...20 mA -0.5...7.0 barg
B2 L1-Condensing pressure probe 4...20mA 0.0...30.0 barg
B3 L2-Suction pressure probe 4...20 mA -0.5...7.0 barg
B4 L1-Suction temperature probe NTC
B5 L1-Discharge temperature probe HTNTC
B6 L2-Condensing pressure probe 4...20mA 0.0...30.0 barg
B7 L2-Suction temperature probe NTC
B8 L2-Discharge temperature probe HTNTC
B9 External temperature probe NTC
Tab. 2.x
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.y