ZIEHL TR250, Operating Manual

Page 1: ...g Transducers Grid and Plant Protection Operating Manual TR250 updated 2016 12 19 Sc TR250 12410 0701 03 Page 1 18 www ziehl de Temperature Relay TR 250 New from firmware 01 Program Pr5 for protection of transformers with 2 PTC circuits sensor alarm pre alarm and tripping Program Pr6 for Protection of transformers with 3 PTC circuits forced cooling pre alarm and tripping Display of firmware versio...

Page 2: ... Installation 10 9 Putting into operation 10 9 1 Display Mode 10 9 2 Programming Mode 10 10 Operation 13 11 Trouble shooting and remedies 14 11 1 Pre Set ex works WE 14 11 2 Display 14 11 3 Relay cannot be programmed Code Lock 14 11 4 Displayed Temperature is different from Sensor Temperature 14 11 5 Display Error Er1 or Er2 14 11 6 Relay trips regularly without limit exceeded 14 11 7 Firmware ver...

Page 3: ...ture Appropriate LED Sensor is alight Display alarm AL1 AL2 AL3 appropriate LED Alarm is alight Display error massages Er1 short circuit in sensor or line Er2 break of sensor or line Er3 4 internal error of device Err common error EEE measured values too high EE measured values too low In programming mode Display of values and functions see 10 Operation 5 7 button or button Press short Switch to m...

Page 4: ...solution 0 1 C F Resolution 1 F With press Set the device reboots For a new selection this must be repeated Press for 2 s Reset Relay locked switching Press for 4 s Display program number from firmware 01 Press for 10 s Display firmware version 8 9 10 LEDs Sensor ON Temperature value of this sensor is being displayed Flash Error of displayed sensor associated alarm LED lights 2 or more LEDs Sensor...

Page 5: ...alarm all sensors Pr2 Protection of transformers with 3 sensors Pt 100 AL1 forced cooling with a periodically test 1 week AL2 pre alarm and sensor alarm all sensors AL3 tripping Pr3 Protection of transformers with 1 sensor Pt 100 and 2 PTC circuits AL1 forced cooling with a periodically test 1 week Pt 100 AL2 pre alarm and sensor alarm all sensors PTC AL3 tripping PTC Pr4 Single association S1 AL1...

Page 6: ...elay time s 0 0 0 0 0 0 doF Switching back delay s 0 999 999 0 0 999 rEL Function of Relay r A A r r a Err Error from sensor 1 2 3 AL2 Temperature C 130 140 PTC 50 PTC PTC H Hysteresis C 5 5 2 dAL Switching delay time s 0 0 0 0 0 0 doF Switching back delay s 0 0 0 0 0 0 rEL Function of Relay r r r r a r Err Error from sensor 1 2 3 1 2 3 2 1 2 3 AL3 Temperature C 250 155 PTC 50 PTC PTC H Hysteresis...

Page 7: ...ators against overload also with simultaneous monitoring of temperatures in bearings Protection of dry transformers against overload also with control of a forced cooling General protection of motors and machines against over temperatures Temperature controller also for refrigerating systems Monitoring of differences in temperature Resolution 0 1 C for measuring range 19 9 99 9 selectable 4 Functi...

Page 8: ...s when simulating temperatures with a potentiometer measuring time t M is app 4 6 s Relay locked switching In this mode relay will only switch back when switching back temperature has been reached switching back delay time has passed and a reset has been made button contact Y1 Y2 or switching off and on of the TR 250 Readiness is displayed by flashing 1 1 of appropriate alarm LED sensor LED Alarm ...

Page 9: ...tself and of other apparatus and equipment If in any case the information in the instructions manual is not sufficient please contact our company or the responsible representative Instead of the industrial norms and regulations written in this instructions manual valid for Europe you must observe out of their geographical scope the valid and relevant regulations of the corresponding country Attent...

Page 10: ...s Sensor ON warmest of those sensors in display Alternating illumination All sensor values are displayed for 2s each consecutively LEDs Alarm in Display Mode OFF Switching point not exceeded ON Switching point exceeded relay switches Flash Switching delay time dAL runs Flash Switching back delay time doF runs Flash Ready for Reset switching interlocked Reset by button RESET or closing of a contact...

Page 11: ...m is being suppressed for this time Short exceeding of the limit does not result in an alarm Switch back delay doF An alarm is switched off this time after the temperature is below the limit e g a cooling fan can cool down a transformer for this additional time to ensure that it needn t be started again after a short time Function of relays o r closed circuit current mode relay is picked up in GOO...

Page 12: ... can be selected write down When code lock is activated all parameters can be seen but not be changed anymore In case of problems with the code lock forgotten Pin the lock can be switched off and the Pin can be set back to 504 by pushing button Set while connecting the device to supply voltage until Code oF is indicated in the display Hints With programs Pr1 to Pr4 from firmware 01 Pr1 to Pr6 the ...

Page 13: ...on doF both in hours don no test Error reports Er 1 short circuit in sensor or line Er 2 break of sensor or line Er 3 4 internal error of device Err common error EEE measured values too high EE measured values too low 1 Change of sensor type Temp PTC clears association sensors alarms 2 Monitoring of difference in temperature selectable for sensor 3 only when type of sensor 1 and 2 are identical di...

Page 14: ...re is different from Sensor Temperature 1 Unit C F correct When switching on power supply C 0 1C F is displayed for a short moment Change of unit see Factory reset 2 Check connected types of sensors and programmed types 11 5 Display Error Er1 or Er2 Er1 Short circuit in sensor or line Er2 Break of sensor or line Er3 and Er4 are internal errors Switch off and on the device and if necessary reset to...

Page 15: ...pected contact life mechanical 3 x 107 operations Expected contact life electrical 1 x 105 operations with AC 250 V 6 A Test conditions EN 61010 1 Rated impulse voltage 4000 V Overvoltage category III Contamination level 2 Rated insulation voltage Ui 300 V On time 100 EMC tests EN 61326 1 emitted interference EN 61000 6 3 Burst EN 61000 4 4 4 kV Pulse 5 50 ns f 5 kHz t 15 ms T 300 ms SURGE IEC 610...

Page 16: ... before Accuracy 0 5 of value 1 K KTY 5 K Sensor current 1 mA Measuring time t M 2 5 s depending on number and type of connected sensors Housing type V 4 Mounting height 55 mm Width 4 TE Dimensions W x H x D 70 x 90 x 58 mm Line connection solid wire each 1 x 1 5 mm2 Stranded wire with insulated ferrules each 1 x 1 0 mm2 Torque 0 5 Nm 3 6 lb in Protection class housing IP 30 Protection class termi...

Page 17: ...ase 3 Riegel bar for snap mounting 4 Plomben Lasche latch for sealing 5 Frontplatteneinsatz front panel 6 Kennzeichen für unten position downward 7 Riegel bei Wandbefestigung mit Schrauben Riegelbohrung Ø 4 2 mm for fixing to wall with screws Ø 4 2 mm 48 58 45 3 61 8 16 5 90 Option 70 98 116 6 1 2 3 4 5 7 ...

Page 18: ...TR250 12410 0701 03 Page 18 18 www ziehl de You ll find this and other user manuals also in English written in the internet under www ziehl com ...