9219 - TECHNICAL AND ELECTRICAL CHARACTERISTICSMain CPU board installed in the unit’s electric panel, which allows data to be input, treated by the microcontroller and the operationof the unit to be managed completely.The program and the parameters are stored in non-volatile memory, there by ensuring their storage even in the case of a power failure(without needing an auxiliary coil). The program can be loaded through the PC or from a program key.microPC boardELECTRICAL FEATURESPower supply (controller with terminal connected) 230 Vac +10/-15% (by default)24 Vac +10/-15% 50/60 Hz and 28 to 36 Vdc +10/-20% (optional)Maximum current with the connected terminal 25 VA (Vac)Terminal strip with removable male/female connectors (250 Vac max.)connectors set with screwsIsolation between the power supply line and the control doubleData memory 13 kB at 8 bits (max. limit: 400,000 writes per memory location)Working cycle with applications of average complexity 0.2 sAnalogue inputsAnalogue conversion A/D converter to 10-bit integrated in CPUMaximum number 7 in SMALL boards and 12 in MEDIUM boardsInput type: B1, B2, B3, B4, B8 and B9 low temperature NTC: 10kΩ ± 0.1% to 25ºC; -50/90°Chigh temperature NTC: 50kΩ to 25ºC; 0/150°Cinput: 0/1 VdcInput type: B5 and B10 low temperature NTC: 10kΩ to 25ºC; -50/90°Chigh temperature NTC: 50kΩ to 25ºC; 0/150°Cinput: 0/1 Vdc and 4/20 mAInput type: B6, B7, B11 and B12 low temperature NTC: 10kΩ to 25ºC; -50/90°Chigh temperature NTC: 50kΩ to 25ºC; 0/150°Cinput: 0/1 Vdcradiometric pressure probeTime constant for each input 0.5 sInput precision ± 0.3% of the complete scaleClassification of the average circuits (IEC EN 61010-1) Category IDigital inputsNo. of inputs on SMALL boards 7No. of inputs on MEDIUM boards 10Analogue outputsMaximum number 3 in SMALL boards and 4 in MEDIUM boardsType 0 to 10VdcPrecision ± 3% of the complete scale or ± 5% of the complete scale (maximum load 5mA)Resolution 8-bitMaximum charge 2 kΩ (5 mA)Digital outputsComposition of groups SMALL board: Group 1 (1 to 6); Group 2 (7)MEDIUM board: Group 1 (1 to 6); Group 2 (7); Group 3 (8 to 12)Electrical contactsNote: relays of the same group with basic isolation must have the samepower supply (24 Vdc or 230 Vac).Relays of the same group have basic isolation among themselves. Theisolation between the various groups is double.SMALL board (relays 1 to 7):EN60730-1: NO 1(1)A 250Vac cos UL-873: NO 1 A resistive 24 Vac, 30 Vdc; 100,000 cyclesTest capacity: 24Vac; pulse 15A; continuous 1A 30,000 cyclesMEDIUM board (relays 1 to 12):EN60730-1: NO 1(1)A 250Vac cos UL-873: NO 1 A resistive 24 Vac, 30 Vdc; 100,000 cyclesTest capacity: 24Vac; pulse 15A; continuous 1A 30,000 cyclesTECHNICAL CHARACTERISTICSStorage conditions / Operating conditions -20T70 ºC; %RH 90 non-condensation / -10T60 ºC; %RH 90 non-condensationProtection index IP00Environmental pollution normalClassification according to protection against electric shocks To be incorporated in class I and/or II appliancesPTI of the insulating materials 250VPeriod of electric stress across the insulating parts LongType of relay action 1CType of disconnection or microswitching Micro-switch for all of the relay outletsCategory of resistance to heat and fire Category D (UL94 - V0)Immunity from voltage surge Category 1Ageing specifications (operating hours) 80.000Number of automatic operating cycles 100,000 (EN 60730-1); 30,000 (UL 873)Software class and structure Class ACategory of protection against discharges (IEC EN 61000-4-5) Category IIIDimensions: Length x Height x Depth SMALL board: 175 x 113 x 55 mm (10 DIN modules)MEDIUM board: 228 x 113 x 55 mm (13 DIN modules)