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INSTRUCTION MANUAL

TECSYSTEM S.r.l.

Via Cristoforo Colombo, 5/C

20094 Corsico (Milan)

phone +39-0248601011 / 024581861

Fax: +39-0248600783

NT538 P8 V4-R1.4 protection relays

TECSYSTEM S.r.l ®

R.1 08/09/05

NT538

Cross Reference RA Part Number PP8704

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Summary of Contents for NT538

Page 1: ...ION MANUAL TECSYSTEM S r l Via Cristoforo Colombo 5 C 20094 Corsico Milan phone 39 0248601011 024581861 Fax 39 0248600783 NT538 P8 V4 R1 4 protection relays TECSYSTEM S r l R 1 08 09 05 NT538 Cross Re...

Page 2: ...etecting in case of wrong programming with specific indication of the wrong value couple 7 Possibility to return to previous programming step for a faster value modification 8 Safer programming block...

Page 3: ...C Humidity 90 no condensing ABS self extinguishing housing NORYL 94VO Frontal in polycarbonate IP65 Absorption 3VA Data storage 10 years minimum Digital linearity of sensor signal Self diagnosis circu...

Page 4: ...capacitor battery to phase the transformer itself 4 ELECTRICAL CONNECTIONS FOR ALARMS AND FAN Carry out the electrical connections on the removable rear terminals after having removed them from the d...

Page 5: ...ppears Ech indication with the relevant reporting of the Fault contact In this case for safety reasons the default parameters NCH 8 Alarm Ch1 2 3 4 5 6 7 8 90 C Trip Ch1 2 3 4 5 6 7 8 119 C Fan YES Fa...

Page 6: ...evice automatically displays the hottest channel MAN channel temperature manual reading of channel through cursor keys T MAX monitoring unit displays the highest temperature reached by the sensors and...

Page 7: ...te keyboard no operation RELAYS TEST procedure will be automatically left To end RELAYS TEST procedure press TEST key 16 ALARM RELAY EXCLUSION If you want to exclude the ALARM signal press RESET key r...

Page 8: ...the number of channels chosen at step 2 6 PRG SET Fan led blinks 7 Set YES or NO NO disabled fan YES enabled fan 8 PRG SET Display shows ON FAN turning on 9 PRG SET It appears ON threshold for FAN 10...

Page 9: ...by supply voltages beyond the highest working limits 20 270 Vac dc The war ranty is not valid if the device would be burnt out by too many transient voltage peaks In this case TECSYSTEM S r l do not...

Page 10: ...e of its own resistance and therefore of the temperature recorded by the monitoring device It s obvious that this increase is not directly resulting from the power increase of the machine to be protec...

Page 11: ...2 3 4 5 6 7 8 9 10 11 Pt100 INPUTS ALARM RELAY OUTPUTS 40 41 42 POWER SUPPLY 24 240 VAC VDC WHITE RED RED Pt100 FIG 1 ALARM TRIP FAULT FAN 25 26 27 28 29 30 31 32 33 34 35 36 CH 5 CH 6 CH 7 CH 8 ESPA...

Page 12: ...N Description 1 Mounting card check 2 Input working check 3 Relay contacts and output check 4 Push button working check 5 Check lamp 6 Calibration at 0 and 200 C 7 Software working check 8 Burn in min...

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