1. Manuals
  2. Brands
  3. Vemer Manuals
  4. Controller
  5. FHT Series
  6. User manual

Vemer FHT Series User Manual

Digital heat regulators
Hide thumbs
Table of Contents

Advertisement

Quick Links

Termoregolatori
Digitali
FHT ...
Manuale d'uso
User Manual Digital Heat Regulators

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the FHT Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Vemer FHT Series

Summary of Contents for Vemer FHT Series

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

  • Page 3: Table Of Contents

    Table of contents ■ Safety instructions Page ■ Technical specifi cations Page ■ Device description Page ■ Wiring Page ■ Glossary Page ■ Operation Page ■ Setting regulation parameters Page ■ Parameter menu Page ■ Error messages Page ■ Serial communication Page ■...

  • Page 4: Safety Instructions

    SAFETY INSTRUCTIONS ■ During the installation and operation of the device observe the following instructions: 1) Device must be installed by a qualifi ed person 2) To install device, carefully respect wiring diagrams 3) Do not power or connect the device if any part of it is damaged 4) Before making contact with terminals, ensure that conductors to be connected to the device are not live 5) Connection wires must be able to resist maximum operating temperature...
  • Page 5 • Display resolution: 0,1 °C (-9,9 ÷ +99,9 ° C) and 1 °C (< -9,9 °C and > +99,9 °C) • Accuracy: ± 0,5 % of scale limit value ±1 digit (at ambient temperature 23 °C) • Sampling time: 0,5 s •...

  • Page 6: Device Description

    Backpanel 33x75 mm Code Model Power (*) Relay n° Analog Digital Infrared output input receiver VM666500 FHT 1P3D 12÷24V AC/DC VM667300 FHT 2P3D 12÷24V AC/DC VM668100 FHT NTC-2P3D 12÷24V AC/DC 4-DIN version Code Model Power (*) Relay n° Analog Digital Infrared output input...

  • Page 7: Wiring

    WIRING • Carefully follow all the information in the Safety instructions and Wiring diagrams sections. GLOSSARY Set-point • The set-point is the reference value where the device cuts in to keep the parameter controlled at the desired value. Differential (or hystheresis) •...
  • Page 8 No output is activated within Dead band Mode the dead band; outside the dead band the device operates by direct action if the parameter controlled increases and by reverse action if it decreases. Set - Diff (R) - ZN Set + Diff (D) + ZN Temperature PWM operating mode (time-controlled proportionate)
  • Page 9 If both outputs are used, the hysteresis of each output is equal to half of the differential. In this case output 1 will turn on when the parameter measured reaches the value [ST1]-[DF1]/2; output 2 will turn off on reaching this value. Dead-band operation mode [PRO=2] •...
  • Page 10 Operating mode with Direct/Reverse change-over from digital input [PRO=6] • When in this mode both outputs operate in direct (with set-point 1 and differential 1) or both 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.
  • Page 11 Reverse operating mode with set-point and differential change-over from digital input [PRO=8] • When in this mode both outputs operate in reverse, with set-point 1 /differential 1 or set-point 2/differential 2, depending on the status of the digital input. More precisely, with set-point 1/differential 1 if the digital input is open and set-point 2/differential 2 if it is closed.

  • Page 12: Operation

    [DF1] and dead band [DB1] for output Mode PRO=10 1, and all parameters on the alarm menu for output 2. The maximum alarm trips Alarm ON when the value [ST1]+[HIA] is reached and is disengaged on reaching value [ST1]+[HIA]-[DFA]. The minimum alarm Alarm OFF trips when the value [ST1]-[LOA] is Set 1...
  • Page 13 (which occurs automatically if no key is pressed for at least 40 s). To switch from parameter label reading to the reading of the relevant numeric value, press the “OK” key. To change a parameter: - from label or value reading, hold the “OK” key pressed for at least three seconds. - the display will begin to fl...

  • Page 14: Parameter Menu

    8) Analog output (indicated by label [ANG]): type of analog output 9) Advanced (indicated by label [ADD]): dependency, type, insertion, differential/logic All the parameters within the nine menus and their corresponding values, are listed in the following section. - To scan the nine menus in sequence use the “up” (▲) key - To enter the selected menu press the “OK”...
  • Page 15 — [ING] external input menu — [ALR] alarm menu — [DSP] view menu — [SNS] sensor menu — [SYS] system menu — [ANG] analog output menu — [ADD] special parameter setting me Parameter description The tables show parameter labels in the same order in which they appear in the various menus of the device.
  • Page 16 [OUT] output menu Confi gurable Parameter parameter Description unit value default notes labels min max relay time- control activation minimum time between 2 starts of same relay minimum ON time of relay minimum OFF time of relay initial delay from device start PWM cycle time (10) Note:...
  • Page 17 1 external alarm (with open contact) with “DID” delay time and automatic reset after alarm goes off.Output status then turns to “SUI” 2 manual-reset external alarm (with open contact). 3 input acts as switch: device is on when contact is closed and off when contact is open 4 input acts as display change-over between probes S0 and S1 (open contact - S0 probe, closed contact - S1 probe)
  • Page 18 (16) if “yes” both key beep and alarm-condition buzzer are enabled. If “no” both are disabled (17) If “yes” the type of alarm is displayed even during timing of the same, if “no” the type of alarm is displayed only after the timing (18) if “yes”, at the end of a min/max alarm it will be necessary to dismiss alarm type reading and reset the relay manually (19) if “yes”, at the end of a min/max alarm it will be necessary to dismiss alarm type...
  • Page 19 [SNS] sensor menu Confi gurable Parameter parameter Description unit value default notes labels min max sensor type 0 (26) sensor type 1 (27) display of sensor 1 or 2 (27) Note: (26) default parameter and sensor values depend on device model. All sensors available are listed as follows: Temperature probes NiPt sensor type...
  • Page 20 Temperature probes NTC sensor type display reading (**) (**) type 4 nt2 (*) (**) Device default setting, which corresponds to the use of temperature probe NTC code VN870200 (see “Red line” in catalogue under the section Thermoregulation - temperature probes) When using sensors other than “type 4”...
  • Page 21 5 PWM regulation with relay output 1 in reverse and relay output 2 in direct, set-point 1 and differential 1 plus dead band if applicable 6 change-over between outputs in direct (with set-point 1 and differential 1) and outputs in reverse (with set-point 2 and differential 2) from digital input 7 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-...
  • Page 22 [ANG] analog output menu Confi gurable Parameter parameter Description unit value default notes labels min max type of analog output (32) value corresponding to lower limit degrees -99 999 00.0 (33) value corresponding to upper limit degrees -99 999 (33) Note: (32) Analog output...
  • Page 23 4 change-over between set-point 1/differential 1 and set-point 2/differential 2 by means of digital input (open – set 1, closed set 2) 5 output related to set-point 2 maximum alarm 6 output related to set-point 2 minimum alarm 7 output related to set-point 1 maximum alarm 8 output related to set-point 1 minimum alarm 9 output related to set-point 1 maximum/minimum alarm 10 output related to set-point 2 maximum/minimum alarm...

  • Page 24: Error Messages

    ERROR MESSAGES • In case of alarm or malfunction, measure reading and alarm type reading may be displayed alternately. Operating alarm/error messages are described in the following table. Message Type of error Output status Sensor 1 disconnected or short-circuted Same as in parameter (SUA) Sensor 2 disconnected or short-circuted Same as in parameter (SUA) Minumim alarm...

  • Page 25: Reference Standards

    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: Dimensions And Wiring Diagrams 33X75 Mm

    DIMENSIONS OF BACKBOARD MODEL 33x75 mm FHT-1P3D FHT-2P3D FHT NTC-2P3D - 52 - User Manual – Thermoregulator FHT...
  • Page 27 DIAGRAMS FOR 33x75mm BACKBOARD Wiring diagram Analog output 0÷10 V RS-485 4÷20 mA Relay output 8(5) A/250 V~ Jumper Probe input Input 0÷1 V Probe input probe 4÷20 mA Probe External Probe input External Probe External 0÷1 V 4÷20 mA External External External...

  • Page 28: Dimensions And Wiring Diagrams 4-Din

    DIMENSIONS OF 4 DIN MODULAR MODEL FHT-1DA FHT-2DA FHT NTC-2DA 10 11 12 13 14 15 16 17 18 - 54 - User Manual – Thermoregulator FHT...
  • Page 29 DIAGRAMS FOR BACKBOARD 4 DIN MODEL Wiring diagram Relay output 8(5) A/250 V~ Jumper Probe input External Probe 0÷1 V RS-485 Analog Probe input consent input 4÷20 mA TC probe Probe input Probe input 0÷1 V output input 4÷20 mA 0÷20 mA 4÷20 mA input...
  • Page 30 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...

This manual is also suitable for:

Fht 1p3dFht 2p3dFht 2daFht ntc-2daFht ntc-2p3dFht 1da

Table of Contents