T-935FOANALOG Instruction Manual

ComputabilityChurch-Turing’s thesis: All “computationmechanisms” are equally strong. (Lambdacalculus, Turing machines, recursive functions,rewriting systems, Markov algorithms etc.)A (decision) problem (over an alphabet Σ) isa subset A ⊆ Σ ∗ .Definition A decision problem A over Σ isdecidable if the characteristic function f of Ais computable:f(x) ={true if x ∈ Afalse if x /∈ A3

TECSYSTEM S.r.l ®20) PROGRAMMINGN°PUSH BUT-TONS1 PRG/SETEFFECTKeep the push button pressed for 7’’until Set appears and PRG starts tolighten. When PRG stops lightening theset DEFAULT ALARM temperature willappear on the display2 set up the established limit for CH 1-2-33 PRG/SET TRIP set T° appears4 set up the established limit for CH 1-2-35 PRG/SET on display appears CH4NOTESLed program allight6 set up CH4 YES or NOYES: CH4 connectedNO: CH4 disconnected7 PRG/SET ALARM set T° appears only if YES was chosen at step 6.8 Enter the desired Trip setpoint for Ch 49 PRG/SET TRIP set T° appears only if YES was chosen at step 6.10 Enter the desired Trip setpoint for Ch 411 PRG/SET “FAN” appears12 set up FAN YES or NO13 PRG/SETway of FAN control onthe display appears CHFYES:FAN connectedNO: FAN disconnectedonly if YES was chosen atsteps 6 and 12.14 set up CH 1,2,3 or CH4 respective LED alight15 PRG/SET on the display appears On16 PRG/SET the On T° appears17 set up the temperature18 PRG/SET on the display appears OFF19 PRG/SET the OFF T° appears20 set up the temperature21 PRG/SETto set up FAN2 repeat the same procedure as FAN1way of FAN control TEST on the displayappears h0022 set up the number of hours23 PRG/SET on display appears Fcd24 set up Fcd YES or no25 PRG/SET on display appears Hld26 set up Hld YES or no27 PRG/SET Prg appears on displayonly if at the step 12you established YESonly if at the step 12 andyou established YESonly if at the step 12 youestablished YESh00=function disconnectedFcd YES= control of damaged Pt100connectedwith HLd YES function HOLD established28 set up Prg YES or NO Prg NO= the programming is blocked29 ENT out of the programming lamp test30 PRG/SET return to step 18 T-935-FO ANALOGUE protection relays

TECSYSTEM S.r.l ®21) PROGRAMMING REHABILITATION IN CASE OF BLOCK (Prg ! no)If the programming has been blocked (step 28), in order to enter again the programming ofthe unit, it is necessary to carry out the following unblocking procedure :• enter the program vision way pushing PRG• keep TEST pushed until PRG stops to lighten. ( LED PROGRAM alight )During the blocking, pushing PRG for more than two seconds, on the display “noP” appearsto indicate the impossibility to program the data.22) WARRANTYThe “T” series units are under warranty for 12 months from the delivery date marked onthe unit.The warranty is recognised when the unit breaks down due to some production faults orinsufficient calibration.The warranty is not valid when the unit is tampered with or when it has been damaged fora wrong sensors connection or wrong power supply, out of the max working limits (20÷270Vac-dc). The warranty is not valid when the unit has been fulminated by eccessive transitoryvoltages. In this case TECSYSTEM Srl does not answer for damages caused by faultedor defective units. All the delivery expenses (there and back) of the unit must be payedby the Customer.(ANIMA prices, Col. C.).In case of dispute, the qualified FORUM is the one in Milan.The warranty is always EXW our Company in Corsico.23) PT100 EXTENSION CABLE: TECHNICAL SPECIFICATIONSCable 20xAWG 20/19 cu/stgSection 0,55 mm²Antiflame Insulation PVC105In accordance with CEI 20.35 IEC 332.1Max. working temperature: 105°CConformation : 4 terns of the numbered conductors (1-1-1.........4-4-4)RRB twisted and coloured conductorsShield cu/stgPVC Antiflame protecting coveringExternal diameter 9,0 mmSkeins of 100 mT-935-FO ANALOGUE protection relays9

TECSYSTEM S.r.l ®FAULT DIAGNOSTICThe unit doesn’t switch on even if there isvoltage to the terminalsThe CH4 is in FAULT FOC (Only three Pt1-00 sensors are connected)One of the 3/4 channels is in FAULT forFOC/FCCDuring the main switch manoeuvre ON-OFF, the ALARM and TRIP relays energizeAll the Pt100 sensors are in FCC.The temperature indicated by 1 or morechannels is wrong.CAUSES AND REMEDIESConnector not well fit in its place.Connection wires not well closed in theclamp Burnt power supplier.Take away and give voltage again.Wrong programming of the unit.Repete the programming.Check the sensors Pt100 connection.Probable damaged sensor.Subsitute the damaged sensorStrong electrical noises on the powersupply line.Plug in the PT-73.Check if the shield of the signal transportcable is connected to the ground on theside of the panel.If you have no shielded cable, you have toput it. (Mod. CT-ES).If it is not available, twist the three connectingwires of the sensors.Wrong connection of the sensors. Upsidedownterminal board.Check the connections and the terminalboardContact Technical Dept. of TECSYSTEM S.r.l.Sudden release of the main switch with anormanl temperature level.A single channel caused the unhooking.Pt100 sensor defective (Fcd).Substitute the sensor.Check the measuresignal terminal board.Set “Fcd” function (see page 5). Should theFcd Fault signal appear on the display a-gain, change the indicated sensor.10 T-935-FO ANALOGUE protection relays

TECSYSTEM S.r.l ®FIG.1ELECTRICAL CONNECTIONS T-935Pt100 SENSOR CONNECTIONCH 1 CH 2 CH 3 CH 413 14 15 16 17 18 19 20 21 22 23 24ALARM AND FAN RELAYS CONNECTION1 2 3 4 5 6 7 8 9 10 11 50 51ALARM TRIP FAULT FAN 1 FAN 2Pt100+ - Vcc Gnd424140POWER SUPPLY24-240 VCA-VCCWITHEREDRED70 71 72 73OUT 4-20 mAFIG.2IN 24/240VAC/DCAU 4-20/A4-2040 41 42IN 24-240V AC/DCPER AU 4-20IN 220V ACPER A4-2040414272737273T-935 FOANALOGICAA4-20, AU4-20 ELECTRICAL CONNECTIONS70 71OUT 4-20 mA + -T-935-FO ANALOGUE protection relays11

TECSYSTEM S.r.l ®T-935-FO ANALOGUE TEST DESCRIPTIONThe unit was submitted to the following tests during production:N° Description1 PC board test2 Input test3 Test of relay contacts and outputs4 Key test5 Lamp test6 Calibration at 100 and 200°C (for temperature monitoring units)7 Software test8 Burn-in minimum 24hDate of shipment:12 T-935-FO ANALOGUE protection relays