EC3-33x User Manual Rev. 4 - 14.01.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 The EC3-33x coldroom controller is a universal controller for refrigeration applications with an electronic stepper motor expansion valve like the EX5. The controller has six temperature inputs for coil in, coil out, air in, air out and defrost termination temperatures. The sixes temperature input is a universal temperature input.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 LIST OF PARAMETERS Parameter DISPLAY PARAMETERS Value to be shown on display No alarms Temperature unit Decimal point Display during defrost Temperature alignment for /1 = 0 Values Min Max Unit Def 0 11 0 0 1 flag 0 0 1 flag 0 0 1 flag 0 0 2 flag 0 -20.0+20.0 K 0.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.
• F3 Fan status during defrost 0 = on 1 = off • F5 Fans status during cleaning 0 = off 1 = on • u0 Refrigerant 0 = R22 1 = R134a 2 = R507 3 = R404A 4 = R407C • u1 Correction Glide = positive Values Pressure drop = negative Values • u2 MOP Control 0 = off 1 = on • u4 Control Mode 0 = off 1 = fixed superheat 2 = adaptive superheat • u8 Saturation Temperature 0 = Coil in temperature 1 = Pressure • ut Valve type 0 = EX5 1 = EX6 2 = EX7 3 = EX8 EC3-33x Coldroom Controller with EX5 EC3-33x User
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 ALARMS AND MESSAGES ALARM CODES MESSAGES E0 E1 E2 E3 E4 E5 E6 --- Coil in sensor failure Coil out sensor failure Air in sensor failure Air out sensor failure Defrost termination sensor failure Temp. 6 sensor failure Pressure sensor failure • No sensor connected. • The sensor cable is broken or short circuited. • In • Id Er Data error • • Data send to the display is out of range.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 TECHNICAL SPECIFICATIONS Inputs: Compressor failure, Door contact, Switch 1, Switch 2, oil in, oil out, Air in temp., Air out temp., Defrost termination temp., Temp. # 6 Switch 24V AC / DC or 230V AC Sensor: NTC ( 10K at 25°C ) Pressure Sensor: PT3-07 4- 20 mA Outputs: Relays SPDT Imax = 8A res (2A), VAC max = 250V TRIAC Imax = 4A, VAC max = 250V Stepper motor Imax = 0.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 ELECTRICAL INSTALLATION EC3-331 Wiring Diagram In Do1 Do14 1 Fan Comp 1 C 2 1 Alarm C 2 Relay ECD 001 A B LON - + - + - + - + - + - + n/a Di4 Di3 Di4 C Di2 230V 24V 230V Di1 Suct. Press Di3 24V + Air out Def. term Temp.6 Door 230V Air In C Coil In Coil out C + Fail BN BL BK WH Battery Bi-polar Stepper DI : 1 - 8 = 24V AC/DC or 230V AC, DI : 9 -12 = 24V AC/DC only DO: 250V max.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 SENSOR POSITION The pipe-sensors for measuring the coil inlet and outlet temperature must be fixed with metal clamps or temperature resistant plastic straps and it is recommended to insulate with ARMAFLEX™. The use of standard electrical plastic straps is not recommended because they cannot withstand the temperature changes and could become lose with time.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 LonWorks Interface RS 485 Structure Bus Termination 120 Ω at both ends Medium Twisted pair, 2-wires plus ground Connection 11, 12 Data – 13 ground Nodes / Segment 32 Units Cable length max. 1200 m depending on cable type Transfer rate 39 kbits / s FTT10 Structure free topology Termination RC Network Medium Twisted pair, 2-wires Connection 11, 12 Data - 13 free Nodes / Segment 64 Units Cable length max.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 NODE OBJECTS The EC3-33x coldroom controller has 11 LonMark Objects. EC3-33x Node Object ThermostatObject 20002 Defrost Object 20003 Fan Object 20005 Compressor Object 20004 Display Object 20006 Analog Sensor Object 20008 Evaporator Object 20001 Digital Input Object 20009 Digital Input Object 20009 Digital Output Object 20010 11 Emerson Electric GmbH & Co - ALCO CONTROLS - Heerstr.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 NETWORK VARIABLES Node Object The node object includes all network variables which are necessary for the general communication with the node.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Thermostat Object The thermostat object is responsible for the thermostat function. If the object is disabled the cooling/heating will be switched off and no network variable updates will be performed. Object status information is send by the nvoStatus variable of the node object. If the temperature alarm is disabled, the corresponding bit (“alarm_notify_disabled”) in the status structure will be set.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Defrost Object The defrost object is responsible for the defrost function. If the object is disabled it will change to “defrost standby”, any running defrost will be terminated, no further defrost will happen. No network variable updates will be performed, the object will not react on any input network variable update. Object status information is send by the nvoStatus variable of the node object.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Fan Object The fan object controls the behavior of the fan. If the object is disabled the fan will be turned off , no network variable updates will be performed and the object will no react on any input nv update.. The status information is send by the nvoStatus of the node object. If a failure is detected, the “in_alarm” bit in the status structure will be set, if the fan is in manual control, the “manual control” bit is set..
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Compressor Object The compressor object controls the behavior of the compressor. If the object is disabled the compressor will be turned off , no network variable updates will be performed and the object will no react on any input nv update.. The status information is send by the nvoStatus of the node object.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Display Object The display object controls the display and the presentation of data. If the object is disabled no data will be shown on the display and no network variable update will be performed. If the object is in override, the display will show special messages like wink message or offline status of node.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Analog Sensor Object The analog sensor object controls the analog inputs. If the object is disabled no data will be requested from the analog inputs and no network variable updates will be performed. The status information is send by the nvoStatus of the node object. If any sensor failure is detected, the “in_alarm” bit in the status structure is set.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Superheat Object The superheat object is responsible for the superheat function. If the object is disabled, the valve will be closed. No network variable updates will be performed, the object will not react on any input network variable update. Object status information is send by the nvoStatus variable of the node object.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.
EC3-33x Coldroom Controller with EX5 EC3-33x User Manual A.6.5.063E - Rev 4 Digital Input Object The digital input object controls the switch inputs. If the object is disabled no network variable update will be performed. Network Variables Variable Type SNVT_lev_disc Name nvoDI[] Type O Meaning Status of input switch, ST_ON = closed, ST_OFF = open Configuration Parameters The digital input object has no configuration properties.
