ABB Comem DTI, Instruction Manual

Page 1: ...fety 1 1 Safety instructions 3 1 2 Specified applications 4 1 3 Safety notes on the equipment operation 4 2 Comem DTI and eDTI 5 2 1 Operating principle 5 2 2 Installation 6 2 3 Connection of the temperature sensors 7 2 4 Output relays 7 3 Electrical diagram 8 4 Wiring connection 9 5 Front panel description 10 ...

Page 2: ...Selection of the baud rate 14 6 8 Selection data bit and stop bit 15 6 9 Selection of the linked channel with the analogue output 16 6 10 Configuration output signal 17 6 11 Configuration diagnostic probes 18 6 12 Exit from the programming phase 18 7 Modality of tripping and restore 19 7 1 Alarm 19 7 2 Trip 19 7 3 To silence alarm 19 8 Diagnostic 20 9 Visualization of the maximum measured temperat...

Page 3: ...ING SUCH A WARNING CAN LEAD TO SERIOUS OR FATAL INJURY ALL RELEVANT FIRE PROTECTION REGULA TION MUST BE STRICTLY OBSERVED THIS INFORMATION INDICATES PARTICU LAR DANGER TO EQUIPMENT OR OTHER PROPERTY OF THE USER SERIOUS OR FA TAL INJURY CANNOT BE EXCLUDED THE TEMPERATURE CONTROL UNIT COMEM DTI EDTI MUST NOT BE INSTALLED NEAR SOURCES OF ELECTROMAGNETIC INTERFERENCE INSTALLATION ELECTRICAL CONNECTION...

Page 4: ...ransformers The Comem DTI eDTI uses PT100 temperature probes for a constant monitoring of transformer temperatures The device generates two intervention levels of electric signals alarm and trip 1 3 Safety notes on the equipment operation The electrical installation must conform to the national safety regulations The Temperature monitoring device Comem DTI eDTI has double insulation Earthing is no...

Page 5: ...LC SCADA etc Modbus RTU is the protocol used see specific manual for instruction A Windows software is available for a management of the device with complete function of control storing data and recording alarm In addition it is available an analogue settable output 0 20 mA or 4 20 mA with scale FROM 30 C to 200 C The devices type Comem DTI and Comem eDTI allow the control and the visualization of...

Page 6: ... is intact and it hasn t damages due to transportation or handling The power supply must be compatible with the device range The instrument installation must be done in total absence of voltage and observing the security norm in force All operation of maintenance and reparation executed by not authorized persons are forbidden If during the functioning the device becomes unsafe it s necessary to pu...

Page 7: ... external noises it s necessary to use the following indication for the wires use probes with shielded wire connected at earth and wires twisted separate the wires of the probes from wires of power supply use wires with section at least of 0 5 mm2 use wires with conductor with tin or silver plated 2 4 Output relays For the connection of the output contacts it s necessary to follow the indication i...

Page 8: ...8 TEMPERATURE MONITORING DEVICE COMEM DTI AND COMEM EDTI INSTRUCTION MANUAL 3 Electrical diagram ...

Page 9: ...9 TRANSFORMER COMPONENTS 4 Wiring connection View rear panel of the instrument with terminals for the connections ...

Page 10: ...or the Trip status in the related channels 1 to 4 5 LED FAULT failure indication device or PT100 probes 6 LED HOLD the manual reset is active 7 LED FAN the ventilation output is active 8 Push button HOT T MAX to display the measured channel with higher temperature LED indication activated and to display maximum temperatures achieved 9 Push button ENTER RESET to confirm programming set and the manu...

Page 11: ...The pressure of the ENTER key move automatically the programming at the successive function or value 6 1 Selection of the HOLD function This is the first function in the set menu In this programming phase the HOLD LED switches on The Hold function allows to store the alarm condition that can be rearmed only manually with the RESET button when the temperature is lower than the threshold set If this...

Page 12: ...sible to select the number of activated inputs It s possible to choose between 3 and 4 inputs enabled if there are 3 inputs enabled the T4 display remain off Select 3 or 4 inputs with and keys Confirm with ENTER 6 3 Control ventilation The FAN led will switch on indicating the programming of the ventilation control If 3 inputs are selected the following setting are available ventilation control in...

Page 13: ...ght indicates this phase of programming With and keys select the value of temperature indicated on display Interval of programming from disabling threshold 1 C up to 200 C Confirm with ENTER 6 5 Selection of the alarm and trip threshold The FAN This setting starts to program from the channel number 1 The ALARM LED ON indicates the programming of the alarm With and keys select the value of temperat...

Page 14: ...SIGNIFICANT ONLY FOR COMEM EDTI MODEL THIS SETTING IS SIGNIFICANT ONLY FOR COMEM EDTI MODEL NOTE NOTE This setting is indicated on displays with value to set on T1 T2 display ID on T3 T4 display With and keys select the number choice The range for accepted value is from 1 to 247 Confirm with ENTER This setting is indicated on displays with BDR on T1 T2 display value to set on T3 T4 display With an...

Page 15: ...n parity 8 data bit 1 stop bit EVE 8 1 Odd parity 8 data bit 1 stop bit ODD 8 1 6 8 Selection data bit and stop bit THIS SETTING IS SIGNIFICANT ONLY FOR COMEM EDTI MODEL NOTE This setting is indicated on displays with the type of parity on T1 T2 display the number of data bit and stop bit on T3 T4 display With and keys select the options Confirm with ENTER ...

Page 16: ...T1 T2 display the linked measure channel on T3 T4 display CH 1 2 3 4 for the 1 2 3 4 measure channel ALL to link the measure channel with the higher temperature With and keys to select the options Confirm with ENTER Link channel setting T1 T2 display T3 T4 display Channel with higher temperature AN ALL Measure channel CH 1 AN Ch 1 Measure channel CH 2 AN Ch 2 Measure channel CH 3 AN Ch 3 Measure c...

Page 17: ... as 0 20 mA or 4 20 mA This setting is indicated on displays with AN0 20 to set the output as 0 20mA or 0 mA 30 C 20 mA 200 C AN4 20 to set the output as 4 20 mA or 4 mA 30 C 20 mA 200 C With and keys select the options Confirm with ENTER 4 20 signal setting T1 T2 display T3 T4 display Output proportional 0 20 mA AN 0 20 Output proportional 4 20 mA AN 4 20 Measure channel CH 2 AN Ch 2 Measure chan...

Page 18: ...r wait for about 8 seconds without to press any key to come out of the programming phase It s necessary to indicate the maximum variation temperature FDC min 5 C or max 30 C and after the time in which to do the control FDC min 10 or max 90 time in seconds The key is used to increase the values while the key to decrease Confirm with ENTER FDC setting T1 T2 display T3 T4 display FDC mode disabled F...

Page 19: ...rm relay de energized and the involved LED off occurs when the temperature goes down of 2 C respect at the threshold value set 7 3 To silence alarm If the Hold function is disabled it s possible to silence the alarm condition During the alarm condition the ALARM relay and the ALARM optical signalling are enabled Pressing the Reset button the relay will be de energized while the optical signalling ...

Page 20: ...absent The anomaly conditions are signalled also by the FAULT led on Every time that a probe is out of order because it is interrupted OPE or in short circuit SHR or the delta of temperature is too elevated FDC the corresponding channel LED flashes until the anomaly stop The alarm of interrupted probe SHR or open probe OPE will be reset automatically while the alarm for the delta of temperature FD...

Page 21: ...e On the relative channel if the threshold value set is exceeded of 1 C after 5 seconds the ALARM relay is energized and the ALARM led is The alarm rearm relay de energized and the involved LED off occurs when the temperature goes down of 2 C respect at the threshold value set ...

Page 22: ...ear On the T3 T4 display the hotter temperature among the inputs 3 and 4 will appear To come back in the standard visualization mode press the HOT key for some second up to switch off the relative signalling led 12 Exclusion of the input probes not used If one or more inputs are not used it s necessary to connect a resistance of value included between 100 and 200 Ω or 0 25W The input 4 can be disa...

Page 23: ...larm trip fan auto diagnostic programmable functions ALARM TRIP HOLD FAN T MAX HOT FDC Connection Extractible terminal with screws section wires max 2 5 mm2 Insulation 2500 Vrms 50 Hz per 60 s U aux input PT100 U aux relay outputs inputs PT100 relay outputs Protection degree IP52 front panel IP20 rear panel as CEI EN 60529 Dimensions enclosure Flash mounting DIN 96x96 mm depth 120 mm Enclosure the...

Page 24: ...24 TEMPERATURE MONITORING DEVICE COMEM DTI AND COMEM EDTI INSTRUCTION MANUAL 14 Dimensions ...

Page 25: ...itoring device Comem DTI is received the customer must perform the following operations examine the outer packaging surface to be sure that it is intact check that there are no breakages If damage is found please contact ABB and provide the shipping data together with the serial number of the unit The temperature monitoring device Comem DTI eDTI must be stored in a dry place at temperatures as ind...

Page 26: ...x289 R CH2 Maximum Temperature C 0x28A R CH3 Maximum Temperature C 0x28B R CH4 Maximum Temperature C 0x290 R CH1 Diagnostic 0x0000 Input is right connected 0x0001 Input is shorted 0x0002 Input is open 0x0003 Input is failure 0x291 R CH2 Diagnostic 0x292 R CH3 Diagnostic 0x293 R CH4 Diagnostic 0x258 R CH1 Instantaneous Temperature Diagnostic C 0x0000 Input is shorted 0x0001 Input is open 0x259 R CH...

Page 27: ...2 Alarm Setting C 0x302 R W CH3 Alarm Setting C 0x303 R W CH4 Alarm Setting C 0x310 R W CH1 Trip Setting C 0x311 R W CH2 Trip Setting C 0x312 R W CH3 Trip Setting C 0x313 R W CH4 Trip Setting C 0x272 R W Fan OFF Temperature Setting C 0x273 R W Fan ON Temperature Setting C 0x27F W Reset Maximum Temperature Write 0xA55A to reset Unsigned int ...

Page 28: ...perating Unit Strada Regionale 11 Signolo 22 36054 Montebello Vicentino VI ITALY www abb com transformercomponents The data and illustrations are not binding We reserve the right to modify the contents of this document without prior notice following technical and product developments Copyright 2019 ABB All rights reserved ...