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Termoregolatori

Digitali

FHT ...

Manuale d’uso

User Manual Digital Heat Regulators

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Summary of Contents for FHT 1DA

Page 1: ...Termoregolatori Digitali FHT Manuale d uso User Manual Digital Heat Regulators ...

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Page 3: ...ng Page 33 Glossary Page 33 Operation Page 38 Setting regulation parameters Page 38 Parameter menu Page 40 Error messages Page 50 Serial communication Page 50 Reference standards Page 51 Dimensions and wiring diagrams 33x75 mm Page 52 53 Dimensions and wiring diagrams 4 DIN Page 54 55 29 User Manual Thermoregulator FHT ...

Page 4: ...alue 8 Contacts all type 1C EN 60730 1 and variations 9 The device does not require maintenance TECHNICAL SPECIFICATIONS This series of digital temperature thermoregulators satisfies the basic requirements of thermoregulation They may be used as heating or cooling controllers or as maximum minimum alarms Two models designed for probe input PTC temperature probes Positive Temperature Coefficent Ni1...

Page 5: ...V AC DC 4 20 mA Optoisolated serial communication output RS 485 MODBUS communication protocol Digital input 1 with configurable function external consent external alarm ON OFF regulation selection of probe to be displayed set point switching Direct Reverse switching Acoustic and visual alarm system for external alarm from digital input probe alarm malfuction minimum or maximum alarm Infrared recei...

Page 6: ... DC 10 DEVICE DESCRIPTION Display 3 digit with decimal point LED display Reading range for all models is minimum reading 99 C or 9 9 C maximum reading 999 C or 99 9 C Note reading resolution is 0 1 C in 9 9 99 9 C range and 1 C in 99 10 C and 10 99 C Relay on signalling LED Out 1 LED remains off if relay one is OFF and on if relay one is ON flashing if relay one in OFF position is about to turn ON...

Page 7: ...increase it operates in a direct way As in a refrigerating system for example as temperature increases the heat extraction rate produced also increases in order to lower the temperature Reverse action When a regulator tends to restrict parameter decrease it operates in reverse For example a decrease in temperature in a heating system corresponds to an increase of heat production Neutral zone or De...

Page 8: ...ulse settable timing see Output menu The PWM mode modulates the power based on the position of the parameter within the differential power increases as deviation from set point increases Warning Not recommended for use with compressors as this would cause short start stop periods Direct operating mode PRO 0 When in this mode all outputs operate in direct Set point 1 ST1 and differential 1 DF1 must...

Page 9: ...gulator will tend to keep the parameter within the dead band Outside the dead band output 2 will turn on if the parameter tends to increase conversely output 1 will turn on if the parameter tends to decrease If only one output is present it will operate in reverse with the hysteresis to the left of the value DBN PWM operating mode PRO 5 The regulation logic of this operating mode is the same as th...

Page 10: ...oth in reverse with set point 2 and differential 2 depending on digital input status More precisely in direct if the digital output is open and in reverse if it is closed Operating functions are the same as in modes 0 and 1 Therefore both set points ST1 and ST2 and both differentials DF1 and DF2 must be configured Direct operating mode with set point and differential change over from digital input...

Page 11: ... the digital input is open and set point 2 differential 2 if it is closed Operating functions are the same as in mode 1 Therefore both set points ST1 and ST2 and both differentials DF1 and DF2 must be configured Operating mode with outputs 1 and 2 respectively in reverse with set point 1 and diff 1 and direct with set point 2 and diff 2 PRO 9 When in this mode output 1 operates in reverse and outp...

Page 12: ...e temperature measured and the parameters set The information displayed is Temperature measured by the sensor Status of output OUT1 and in devices with two outputs OUT 2 SETTING REGULATION PARAMETERS There are two types of programming for regulation parameters Simple programming Advanced programming Note to restore default factory set values turn on the device while pressing the OK key Simple prog...

Page 13: ...ceed with parameter configuration enter the previously set password a numeric value from 0 to 255 using the up and down keys and then press OK to confirm If the password entered is correct the regulation menu will appear otherwise normal status will return Advanced programming To enter advanced programming from normal status press the up and down keys simultaneously for at least 3 seconds Note to ...

Page 14: ... will be displayed It is possible to return to normal operation at any time by pressing the down key or not pressing any key for at least 40 seconds Note if when configuring parameters no key is pressed within 40 seconds the parameter label will be displayed again and none of the changes entered will be saved Note During the display and change of parameters the device will continue operating with ...

Page 15: ... 100 2 0 2 DBN neutral zone dead band degrees 0 100 2 0 2 I O regulation on off on 3 HIO maximum value measured by sensor 0 degrees 4 LOO minimum value measured by sensor 0 degrees 4 HI1 maximum value measured by sensor 1 degrees 4 LO1 minimum value measured by sensor 1 degrees 4 Note 1 for values LO1 2 and HI1 2 see display menu DSP 2 parameter is active only if it applies to the operating mode 3...

Page 16: ...2 output 3 timing enabled for both relay 1 and 2 outputs 6 this parameter restricts the number of starts per hour for the equipment connected to the device parameter frequently used e g for compressors 7 minimum time in which output must remain ON 8 minimum time in which output must remain OFF 9 output activation delay time from reset of the device 10 the period that can be set for PWM regulation ...

Page 17: ...lays OFF 1 relay 1 ON and relay 2 OFF 2 relay 1 OFF and relay 2 ON 3 both relays ON ALR alarm menu Configurable Parameter parameter Description unit value default notes labels min max SUA output status in probe alarm condition 0 3 0 14 LOA minimum alarm shift degrees 0 1 100 50 15 HIA maximum alarm shift degrees 0 1 100 50 15 DFA alarm differential degrees 0 1 100 2 TRA alarm activation delay time...

Page 18: ...s 99 HI1 99 HI1 upper limit of set point 1 degrees LO1 999 999 LO2 lower limit of set point 2 degrees 99 HI2 99 21 HI2 upper limit of set point 2 degrees LO2 999 999 21 SOF probe 1 calibration offset degrees 50 50 0 0 22 SIF probe 2 calibration offset degrees 50 50 0 0 22 RIS reading resolution HI LO HI 23 UNI temperature measurement unit C F C 24 FIL measurement filter no yes yes 25 Note 21 param...

Page 19: ...1 S0 27 Note 26 default parameter and sensor values depend on device model All sensors available are listed as follows Temperature probes NiPt sensor type display reading Pt100 PtE Ni100 nI Device default setting Thermocouples JK sensor type display reading J J K C L L T t E E N n R r S s Linear probes sensor type display reading 0 20mA 020 4 20mA 420 0 1V 0 1 45 User Manual Thermoregulator FHT ...

Page 20: ...it value default notes labels min max PS1 password 1 0 255 0 28 PS2 password 2 0 255 0 28 NEN enables parameter changing yes no no 29 PRO operating mode 0 12 0 30 ADR serial address 1 247 1 COM serial communication parameters 0 11 0 31 Note 28 password is enabled if setting is other than 000 29 if setting is yes all other parameters can be viewed but not changed 30 the following operating modes ar...

Page 21: ... outputs in direct with change over between set point 1 differential 1 and set point 2 differential 2 from digital input 8 outputs in reverse with change over between set point 1 differential 1 and set point 2 differential 2 from digital input 9 relay output 1 in reverse with set point 1 and differential 1 and output relay 2 in direct with set point 2 and differential 2 10 if one relay output alar...

Page 22: ...ion unit value default notes labels min max DP0 output 1 dependency 0 10 34 TI0 on off type or PWM 1 0 1 35 DB0 dead band 1 0 1 36 IN0 cut in 1 100 100 37 DF0 logic 1 differential 100 100 38 DP1 output 2 dependency 0 10 34 TI1 on off type or PWM 2 0 1 35 DB1 dead band 2 0 1 36 IN1 cut in 2 100 100 37 DF1 logic 2 differential 100 100 38 Note 34 the parameter establishes in what way an output depend...

Page 23: ... minimum alarm 9 output related to set point 1 maximum minimum alarm 10 output related to set point 2 maximum minimum alarm 35 establishes whether the type of regulation is ON OFF value 0 or PWM value 1 36 indicates if dead band is present value 1 or not value 0 37 indicates change over point ON of relay compared to set point set by dependency parameter the change over point is calculated adding a...

Page 24: ...utput RS 485 The data communication system is based on MODBUS protocol and can be connected to a Master system PC PLC on a multipoint line RS 485 up to 32 FHT s slaves without signal amplifiers from a maximum distance of 1000m up to 247 FHT s slaves in groups of 32 separated by proper signal amplifiers Communication occurs in half duplex and only the Master PC PLC can initiate Query Response type ...

Page 25: ...English REFERENCE STANDARDS For safety EN 60730 2 9 For electromagnetic compatibility EN 55014 1 EN 55014 2 EN 61000 6 2 EN 61000 6 3 51 User Manual Thermoregulator FHT ...

Page 26: ...n a i l a t I FHT 1P3D FHT 2P3D FHT NTC 2P3D 75 3 3 OK 81 3 3 70 8 2 o English DIMENSIONS OF BACKBOARD MODEL 33x75 mm 52 User Manual Thermoregulator FHT ...

Page 27: ...tive probe supply output Input probe Sensor 3 wires to be powered Sensor 2 wires to be powered 9 VDC max 30 mA Self powered sensor 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 6 7 8 9 5 2 3 4 6 1 7 8 9 14 11 12 13 15 10 16 17 18 Probe input PTC 2 wires Jumper Relay output 1 8 5 A 250 V Output relay 2 8 5 A 250 V Analog output 0 10 V 4 20 mA RS 485 Serial Probe input TC Probe input PTC 3 wires A l i mentazio n ...

Page 28: ...o n a i l a t I FHT 1DA FHT 2DA FHT NTC 2DA 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 OK 7 8 70 5 4 65 English DIMENSIONS OF 4 DIN MODULAR MODEL 54 User Manual Thermoregulator FHT ...

Page 29: ...1 8 5 A 250 V Relay output 2 8 5 A 250 V Serial RS 485 Analog output 0 10 V 4 20 mA Probe input PTC 3 wires Probe input PTC 2 wires Jumper Probe input 0 1 V 4 20 mA 0 20 mA Active probe supply output Active probe supply output 9 VDC max 30 mA Sensor 3 wire to be povered Probe input 4 20 mA 0 20 mA 9 VDC max 30 mA Sensor 2 wire to be povered Probe input 0 1 V 4 20 mA 0 20 mA Self powered sensor 16 ...

Page 30: ...V3ISO0330 010 072007 Vemer S p A I 32032 Feltre BL Via Camp Lonc 16 Tel 39 0439 80638 Fax 39 0439 80619 e mail info vemer it web site www vemer it ...

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