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EN Supply-control system of electric heaters

1. 5 4 1 5 INIHI EOD io PINO E 7 5 Description of control system s 2 4 2 nnn nnn 8 5 1 Connecting signal and control 8 p2 One CHG SUPDIY cet M dE NU RUIN 8 sS MI Regured Brelgrell COGS ara ER EAEE E REE NRE EEE EENET 9 UICE ee PUN 9 VTS reserves the right to implement changes without prior notice User s manual 1 User s manual 1 Description of controls 1 1 Supply control system Application Power supply protection and smooth power control of multistage electric heaters with rated supply voltage 3x400V 50Hz Range of operation Electric heaters having from 1 to 6 heating levels with 18 kW each dedicated to use in VS type Air Handling Units Elements 1 Contactors 2 HE module 3 Installation switches 4 Mains switch 5 Heaters 1 2 Main Power Switch 1 3 Control module Confirmation Entering parameter value LED display edit mode Change confirmation Navi buttons Switching between parameters and changing parameter s value Cancel abort Aborting parameter value edit mode without saving changes PWM output status indication The LED lighting up indicates Fu n cti i
2. l INMd NO NO INEM IN A NO WZM WzZ3 NO WLIM WVI3 MAZZ WMd NO IN X IN 3 NO WeM INCA NO WLM WI3 NelvS DO HE 5 NO gt 1 1 DH gag 5 I 1 WMd i 09X NO NLM WL3 MA8L o 4 1 8 148 1 4 Advanced instructions 12 VTS reserves the right to implement changes without prior notice vid ing uni INMd zn in JL JL JL NO IN9M IN93 NN ME BN BN m NN ZY UN NO INSM INS3 INCM Y INIM zn n WEM zn NO INTM WtJ LM LM NO IN M IWE J NO INCM WZ3 NO INLM WL3 M4801 WMd 20710 ee NO INSM INS cE s DE VATI VAZ NO INTM WtJ NO IN M IN NO INCM WcA NO INLM INLA3 M106 ir handl su Ive a NIS t WMd NO IWtM Wt3 NO INEX IN 3 NO INCM Wec3 NO NLM WVI3 NelcZ Innova
3. WNMd NO INEM IN A NO WZM WzJ NO IWLM WNLA MAYS L WMd zn in NO INCM IWc3 NO WLW MADE d M SE j o INMd NO INVM WVI3 MA84 NCC ETERNI a 92 089 00 SA HXI dNS ATdWIS 92 0S4 OF SA 92 00 081 SA dNS FIdWIS 92 08 OF SA HXI dNS 2df 92 081 OF SA YWILdO 92 8 0L SA 5 2 a VNd31SM VOINMAZYOYN ONLLVIH3Md 606 8 2c 9 Sc 04 amp ec 6 00 VTS reserves the right to implement changes without prior notice 13 Advanced instructions
4. eT Oe operation of the first heater s section not available in the current owitching on the heater version Alarm status indication 1 4 List of available parameters Parameter Function Range Factory setting 10h Upper signal limit at analog input 0 0 100V 100 Wrieandread NUNC HENES 28 12h Signal value at dod control one o 0 10 OV Ress 15h PWM output limit 1 0 10 1 Writeandread 36h Digitalinputs Read 7h jDigtalotputs Read 18h Current percentage value of PWM output setting 00 100 Read Heater operation mode selection 0 100 00 read VTS reserves the right to implement changes without prior notice 2 User s manual innovative air handling units 2 Technical specification 2 1 Construction The control panel is built in a side wall of the electric heater Type series of supp contol systems 18 36 54 72 90 108 phase contactors the switch cross assembled on the feeding cable outside the heater s casing 2 2 Operation parameters 3x400 V 400 V 25kV rated short time withstand current for respective circuits effective value Oo x gt of alternating current component withstood during 1 s i e short circuit current expected at connecting voltage of rated peak withstand current i at cos 0 5 10 2 kA i Amou
5. 55 DI 1 FAN S PRESSURE CONTROL UNIT It protects the heater against operation 7 Users element or device allowing to 1 wihout airflow Stop operation of the heater 01 2 OVERHEATING THERMOSTAT Protects the heater against overheating 17h Digital output 2 state The parameter contains information on six available digital inputs designed for switching on next contactors through which the next heater s levels are fed l DO 1 first heating level DO 4 fourth heating level Heater power output 0 18kW Heater power output 54 72kW DO 2 second heating level DO 5 fifth heating level Heater power output 18 36kW Heater power output 72 90kW DO 3 third heating level DO 6 sixth heating level Heater power output 36 54kW Heater power output 90 108 kW CAUTION The parameter does not contain info on the status of alarm output EE EM Current percentage value of PWM output setting Range 0 100596 Only reading option available The parameter defines information on a percentage value of the set PWM output The information should be consider as a percentage value of the max power output of the first heating level in standard VTS 18kW heater VTS reserves the right to implement changes without prior notice User s manual 4 2 Alarm output Vc US The moment an alarm state is raised all heatin
6. off Average output 5096 Average output 7596 Average output 10096 14h impulsing duration 2 14h 14h Time Extension of the impulsing time is recommended if the max heater output power is defined below 18kW and also when the heater power consumption causes interferences of other electric devices e g lighting flickering Shortening of impulsing time is recommended in order to improve the control accuracy i e when first heating level impulsing causes periodic fluctuation of supply air temperature measurement of a heated room VTS reserves the right to implement changes without prior notice 6 User s manual innovative air handling units Range 0 100 Record and read options are available Default value 100 The parameter defines in a percentage value the max output power in which the first heating level with smooth power control is able to work Its value should be determined basing on power consumption defined in the ventilation system design EXAMPLE 1 POWER consumption Pn 6 7kW 15h E 1 134 100 CALLA E 100 37 18kW 18kW EXAMPLE 1 POWER consumption Pn 100 kW 1sh aaa on 18kW 18kW Pmax max output of the heater s first level mE NM Digital input 2 state Range 000 111 binary value Only reading option available The parameter contains information on status of three available 2 state inputs 0 indicates lack of input signal 1 indicates that the 24VDC signal is present 1 6 100
7. 0 operation in the initial heater mode The heater s power increases or decreases smoothly depending on the state of DL3 digital input The analogue input remains inactive DI1 and DI2 digital inputs playsecurity functions EXAMPLE the heater s power 35kW 19h parameter 5 depending on the state of the heater and DI3 input the heater s power will increase or decrease smoothly at the speed of 1 8kW per minute Upper signal limit at analog input Hange 0 0 10 0V Record and read options are available Default value 10 The parameter defines a value of the control signal at which the control module sets the max power output of the heater CAUTION The max power output depends on the 13h and 15h parameters Lower signal limit at analog input Range 0 0 10 0V Record and read options are available Default value 0 2 The parameter defines a value of the control signal at which the control module switches on the first heating level and set the min power output of the heater This value should be higher than zero Some voltage may induce in the control cable due to interference of other electric devices noises Setting too low value of the 11h parameter may result in an unintended switch on of the electric heater Signal value at analog input control one Range 0 0 10 0V Only reading option is available The parameter contains some information on current signal value at the analog input control one The parameter has got an informati
8. S 3 IdWIS DO 0SL 0 SA VNILdO 9267 04 SA c 5 6H E NO IN9M W9 I NO INSM WG I NO Wer c NO WEN NEJ L NO WeM Wz NO INLM WL3 74801 2 WMd zn n NO INSM INSA TU VAV gt NO Wer NO INEM W c NO WeM Wz NO 2 06 WMd NO WtM IWNTJ3 NO IN M IN 3 NO INCM WcA NO NLM WI3 NelcZ WMd en in NO IN X INE 3 NO WeM Wec3 NO WLM WVI3 NelvS WMd NO INCM Wc3 NO INLM WL3 MA9E WMd zen in NO NLM WVI3 MA8L 608 S 8 J 242 9 8S F 2e 1 0 11 VTS reserves the right to implement changes without prior notice Advanced instructions Vct US Odf1 DO 049 00 SA Odf1 DO 00 08 SA dNS dN 99 OGL OF SA dNS dN QO 0S1 OF SA dN 99 GZ OL SA WMd NO W9M IN9A NO INSM INSA NO WtM WrA 24 NO IN X IN 3 NO INCM Wec3 NO MA80L WMd 1 NO INSM INS3 NO WtM WtA NO IN X INE 3 NO Wem INCA NO WLM IWVI3 MY06 OVAvC
9. dergoes deformation and switches off casing plastic Measuring element appropriate capillary 2 or 6m long filled with fast boiling agent thermostat equipped with adjusting screws enabling change of limiting temperature temperature and system reconnection temperature hystheresis VTS reserves the right to implement changes without prior notice activation temperature 65 3 C hysteresis 17 3 C parameters of bimetallic element voltage 30VDC permissible loadA measurement 20 300 Pa 30VDC output signal voltage free switching contact rated operational voltage number of cycles 109 cycles operation conditions 30 85 C IP44 Recommended pressure control operating position horizontal In case of vertical alignment the set point value is 11 Pa higher than the real one protection class Measurement 18 15 hystheresis value 1 7 12 operation rated voltage 30V DC or 230 VAC output signal no voltage switchable contact protection class 44 User s manual innovative air handling units Digital inputs 3x1 The system feeding cable should be connected in accordance with the electric diagram The wire cross sections has been selected for long term current capacity according to the Picture for three load conductors Due to the protection selectivity length cable placement method and short circuit curre
10. f the HE control module signal high level Even if one of the inputs signals a low level the control module enters the alarm state till all signals at the 2 state inputs are present The alarms do not require manual cancellation Initial heater operation mode 19h 1 100 Operating voltage of heaters can only be supplied when the DI1 and DI2 switching inputs of the HE control module indicate high state If at least one of the inputs indicates low state the control module switches the heater off and in the case the DI2 input indicates low state it goes into an alarm state DI3 is the conrol input If it is active the module increases the heater s power and if it is not active the heater s power decreases The rate of increasing and decreasing the heater s power is set in 19h parameter in 1 100 range of full heater s power per minute min 2 gt 6 2 5 55 7 8 5 10 Uster V lt Q 013 0 VTS reserves the right to implement changes without prior notice 4 User s manual innovative air handling units Il Advanced instructions 4 Details of control module s functions 4 1 Description of parameters EE EM Heater operation mode selection Range 0 100 read write possible The parameter determines the heater operation algorithm O operation in the typical electric heater mode The heater s power is proportional to the signal on the analogue input digital inputs play security functions 1 10
11. g stages are switched off the PWM signal is zero the three pole alarm transmitter contact is switched Alarm state is indicated on the display with the symbol presented below Heater operation mode 19h20 ALT It is caused by disappearance of at least one digital input whose current state is displayed under the 16h parameter The alarm state is automatically deactivated when three signals on digital inputs appear Initial heater operation mode 19h 1 100 Itis caused by disappearance of signal on DI2 input only The alarm state is autpmatically deactivated when signal on DI2 input appears ATTENTION If the state of DI2 input changes three times within an hour the system is blocked and it needs manual restart by switching the module off and on again or bysetting the 19h parameter to 0 and then setting it back to a value from the 1 100 range 5 Description of control system s elements Functions and Construction Operation parameters application Protection module of the electric heater protecting it against overheating OVERHEATING THERMOSTAT Fan s pile up control DIFFERENTIAL PRESSURE CONTROL Controlling the electric heater operation in the initial heater mode THERMOSTAT Metal casing Two screw terminals bimetallic element with a function of a normally closed contact Membrane coupled with mechanical module If the acceptable pressures difference is exceeded the membrane un
12. innovative air handling units oupply control system of electric heaters Operation and Maintenance Manual Vct 271 5 DTR HE ver 3 4 12 2012 The control gear complies with European Standard IEC EN 60439 1 AC Standard Switchboards and low voltage control gears www vtsgroup com innovative air handling units Table of Contents RUNE 2 1 Description of 02 0 00 2 1 1 Supply control system 2 1 2 Main Power euntis tad Rss M SII E NIMES 2 ko o 2 1 4 List of available parameters 0 00000100 2 2 3 Zk CONSU O 3 2 2 Operation Dar aee S 3 2 3 Parameters or HE control THOGILHIO o 3 RI TT 4 3 1 Working with display and lt 4067872 PERRO Oo 4 Ja Ba CS OL CO MUON RTT m 4 Advanced 0 2222 1 5 4 Details of control module s
13. nt 6 pcs Digital output Open collector Voltage 24 VDC Pr d max 0 5A PWM output Open collector piste Digital inputs Vice DC Alarm output 3 pole relay CAUTION 1 Connection and start up of the heater should by done by qualified staff only 2 The control system is designed for use with the VTS heaters built in the VTS AHUS only VTS reserves the right to implement changes without prior notice User s manual 3 Vct US 3 Operation CAUTION AA Start up of the heater is strictly blocked by the overheating thermostat and the signal of the fan s pressure control unit 3 1 Working with display and keyboard 3 2 Basics of control Power output of the heater is controlled by the PWM signal Pulse Width Modulation through alternate switching on and off the first heating level equipped with solid state relays SSR Depending on chosen mode of operation duration of the switch on phase is directly proportional to the control signal supplied to the analog input or for time of activation of digital input DI3 Next heating levels are switched on by the contactors when the first heating level reaches the max power output Once the successive heater s level is switched on the power of the first one goes down to the min value Heater operation mode 19h20 The heaters operational voltage is supplied only then if all three 2 state inputs o
14. nts revise the feeders cross sections in the table below Pe EON UMEN raveocunnenr svetem FEEDING CABLE ren No POWER PROTECTION RATED CURRENT SYSTEM FEEDING CABLE TYPE 2 OUTPUT ELEMENT Control cables single or multi Rated voltage 300 500 V Operating conductor PCV insulated temperature 40 up to 70 Multi conductor cables with single or multi wire copper conductors PCV insulated In case of conductor s cross section exceeding 25 it is recommended to use multi conductor cable in jacket flexible Rated voltage 450 750V Operating temperature 40 up to 70 VTS reserves the right to implement changes without prior notice Advanced instructions 9 Vct UsS 6 Electric schemes 43O0 NO 4jIO NO INMd LG LLY LOM ZOH Inn lr E LEES 1L E 1r 1n T x E 8 E E E E TEE i 3d 21 21 TE CE LOW T me gs 2 lt 7 uT 1 aT a 20 47 6 S g 27 i l p 4 1 j f I I 1 f O Dod I l I I 6 8 J 2 9 S J e j 1 0 VTS reserves the right to implement changes without prior notice Advanced instructions 10 dNS 3 IdWIS 99 OGL SA df1
15. onal function and is designed mainly for checking the system EXAMPLE If against expectations the heater does not work and no alarm message is displayed please check the 12h parameter value If this value is lower than the value provided in the 12h parameter it means that there has been no condition to switch the heater on VTS reserves the right to implement changes without prior notice Advanced instructions 5 7717 gt Number of available heating levels Range 1 6 Record and read options are available Default value 2 The parameter defines the max available number of heating levels Thanks to this parameter the max output power of the heater can be limited by the level listed below EXAMPLE 1 Number of heating levels for the power consumption at Pn 6 7kW Pn 6 TKW 13A Pmax 18kW z 0 37 The chosen number of heating levels is 1 EXAMPLE 2 Number of heating levels for the power consumption at Pn 100 kW Pn 13A Pmax 18kW 5 56 The chosen number of heating levels is 6 Pmax max output of the heater s first level CAUTION The max power output of the whole heater depends also on the 15h parameter Range 1 0 10 0s Record and read options are available Default value 10 0 The parameter defines the full cycle duration of the impulse width The full cycle consists of the switch on time of first level of heating grey rectangle and of the time when the first level of heating is switched

EN Supply-control system of electric heaters

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