RGF 300 Three-phase voltage regulator
Contents
1. The work parameters regulation can be divided into TWO PHASES 1 definition of regulator work limits the values of P4 and P5 P6 are defined in this phase 2 definition of regulator work field the values of P2 and P3 are defined in this phase With SLAVE type regulators the regulator calibration is completed during PHASE 1 With MASTER type regulators PHASE 1 is necessarily followed by PHASE 2 which defines the Work Range and Set point N B itis possible to read the work parameters by connecting the HELP1 portable display unit press the keys as shown in fig 28 to display the readout of the value set with the calibration trimmers e eh c P4 P5 P6 dq z qe E n mu fig 28 RGF 300 35 53 4 1 MAX OUTPUT regulation P4 trimmer PHASE 1 100 80 Vie Vac Kg esc C LC 2 cJ MI P4 100 S P4 80 PAIR 1i Wo i CS Seen setting g e 5 ep fig 29 P4 Limits the maximum operating voltage from 100 to 0 It is useful for limiting the maximum capacity or noise of the fan when turning at max speed It is set in the factory to the max value M which corresponds to the max voltage supplied to the fan and equal to 100 of the control value MAX OUTPUT M 100 0 To regulate the MAX OUTPUT voltage correctly proceed as follows 1 bring the P5 trimmer manual control of minimum voltage to position Mi 2 turn the P4 trimmer starting from position M as far as the desired MAX vol2. Press key 16 again the yellow Led will go out and the regulator will now work with PB legible from key 13 of incoming signal mA Vdc bar C For more information consult the user manual for HELPI 10 display module RGF 300 47 53 6 0 rgf 300 EASY REFERENCE COMMISSIONING GUIDE Having connected the supply and load to the regulator the control system commissioning operation must be divided into two phases in order to separate the definition of the regulator work voltage limits P4 P5 P6 from the surround control values P3 P2 with mA Vdc C in automatic regulation QUESTION ANSWER HOW TO PROCEED Should the fan reach 100 speed in e NO e With PS in position M turn P4 automatic regulation clockwise slowly starting from M until the desired max voltage is reached Turn P4 to position M Should the fan constantly rotate ata e YES Starting from m turn PS fixed speed regardless of the slowly anticlockwise until automatic regulation signal reaching the desired voltage P5 e Turn P5 to position m P4 The fan starts rotating at 100 VAC Starting from m slowly turn P5 Having found the correct value with How can you find this CUT OFF anticlockwise until reaching the P5 starting from m turn P6 rotation start value voltage value that turns the fan slowly anticlockwise until the slowly supply STOP threshold Led P6 e g 100VAC RL1 OFF with J14 3 so as to over
3. 40mA trimmerin position M The current signal is tied to the scale amplitude of the transducer used In the case of pressure control which occurs most frequently the value of the mA Bar ratio changes depending on the pressure transmitter scale Version V for 0 10 Vdc active sensors ranges from 0 30 Vdc trimmer in position m 1 75 Vde trimmer in position c 350 Vdc trimmer in position M For Vdc set physical quantity correspondence refer to the characteristics of the sensor used Versions X and Y for NTC sensors C ranges from 3 0 C trimmer in position m 18 0 C trimmer in position e 30 0 C trimmer in position M 4 4 2 Versions with SLAVE regulator operation In this case the rgf300 is subjected to a control signal automatic or manual generated by a remote controller Trimmer P2 only determines the maximum voltage supplied to the fan corresponding to the maximum control signal received by the regulator from the remote controller 20 mA for the SLAVE M version and 10 Vde for the SLAVE V version Starting with the trimmer in position m and remote control at maximum 20 mA or 10 Vdc check the value of the voltage supplied to the load It is at maximum 100 when the trimmer is roughly in the position shown in fig 33 with the control signal in mA and Vdc In this configuration the DIRECT or REVERSE mode is determined by the external controller N B in t
4. RE P3 P5 E Dj M iP w i8 Wi P1 Soft Start P2 Set 100 output P3 standing P4 max output P5 min output J1 Loly E P6 Cut off E P7 MANUAL mode H P T K AC LINE ALARM ALARM O P7 ju E J14 EE 178 een lo2202229222 DOIDODIDADA 12345678910 12345678910 fig 21 3 5 SLAVE version V 0 10 Vdc for 1 or 2 control INPUTS P1 P2 P3 P4 P5 P6 M mim m m Mim Ml m M P1 Soft Start A P2 Set 100 output 4 A Aa a P3 standing P4 max output 1 1 P5 min output J1 WW J2 P6 Cut off 1 HE P7 MANUAL de H P 12 mode HP IEL J4 Ce J5 T K AC LINE ALARM e Q J10 MS RV re J11 J12 HEAT c 116 fl 170 pump AA 0000000000 0000000000 12345678 9 10 123456789 10 fig 22 RGF 300 32 53 3 6 MASTER version X or Y NTC C for 1 or 2 control INPUTS 5 Ef P5 P6 Bj 9j y ai 0 y IS P1 Soft Start P2 Proportional Band P4 max output P5 min output 1 1 DIE J2 P6 Cut off RE P7 MANUAL mode H P er 1 2 J4 Ce Js ER J6 T K RL 1 AC LINE ALARM ON ur ALARM e J10 X ELI RL1 Ke J11 J12 J14 HEAT E TUUS HE 170 pump 0000000000 uere icu re 0000000000 J 123456789 10 123456789 10 fig 23 The rgf300 version for temperature control inputs with NTC sensors is ava
5. fig 9 RGF 300 17 53 22 ELECTRICAL CONNECTIONS ANALOGUE INPUT SIGNALS The connections for the control analogue inputs are described below They can be connected to the MA terminal board n particular MASTER version Active sensors with control in current mA or voltage Vdc MASTER version NTC sensors with control in C 10 kohm 25 C SLAVE version Control signals in current mA or voltage Vdc By connecting the second sensor it is possible to obtain regulation control on the basis of the GREATER SIGNAL VALUE STANDARD version provided by one of the two sensors Warning when two active type sensors with current or voltage output are connected use the V terminal for supply to 22 Vdc 40mA MA 3 for IN 1 and MA 7 for IN 2 There is also a control output available on the terminal board to pilot the rgf unit single phase or three phase that executes regulation on differentiated loads using the same automatic regulation parameters of the main rgf300 Trailing cable with rated cross section 1 5 sq mm 22 14 AWG Cu TERMINAL BLOCK MA TERMINAL BLOCK MB ANALOG INPUTS OUTPUT AUXILIARY ON OFF IN OUT MASTER VERSION SLAVE VERSION E DEES E 0 o RL1 37090 d Z aN 2 aja s RL1 GENERAL ALARM OFF SELECTIONS ONT ON2 ON3 mm ou e on ee on e e ON2 mm ON2 ee onz da 3 e e ons e e ous mm ONS AAN pem en rgf300 ALARM RELA
6. 2 turn the P6 trimmer starting from position m until the P6 value overlaps the P5 value fix the P6 trimmer position exactly and check the state of the RL1 ON Led which must move from the oft position to the on position only if J14 ON3 3 bring the P5 trimmer to minimum value m the load will now be supplied starting from the minimum voltage selected RGF 300 37 53 44 PROPORTIONAL BAND regulation P2 trimmer PHASE 2 P2 Trimmer P2 takes on different roles depending on the model of rgf300 chosen PROPORTIONAL on Master operation models M V X Y P2 adjusts the proportional band on Slave operation models M and V trimmer P2 is set at the factory to BAND give maximum voltage to the load corresponding to the maximum control signal sent to the regulator 4 4 1 Versions with MASTER regulator operation In MASTER regulator versions the range determines the value in mA V C of the input signal that once set passes the fan from the maximum voltage MAX OUT P4 to the minimum set MIN OUT P5 or P6 The P2 work field is different for different versions ES PB for 0 4mA 2 1mA 4 0 mA MASTER Y iv M m 4 20 mA X YD e for 0 3 Vdc 1 75 Vdc 3 5 Vdc o0 va DOO 0 10 Vdc OX d A me SINT for 3 C 18 C 30 C K Wu AKKUEN UE X Y C yY 2 fig 32 RGF 300 38 53 Version M for 4 20 mA active sensors ranges from 04mA trimmer in position m 2 1mA trimmer in position
7. ov 8 mma 4 3 FS loc ereen cables IN V when AN ek IE connection is made to terminals XSK 2 u A 1 3 and 5 7 as the transducer GND B BA pd may be damaged IN 2 5 FT ee CH ra STANDARD CONDITION ATTENTION AN 3 at standard configuration GND KS XSK 1 IN P3 Set point max output fan ni 1 IM TI fig 11 RGF 300 19 53 2 2 2 Connection of NTC temperature sensors 10kohm 25 C Two versions of NTC temperature sensors are available for rgf300 models e Xforscale 10 C to 60 C e Yforscale 20 C to 20 C The table below lists the information necessary for calibration of the Set point page 34 with the position of P3 referred to the centesimal Commutators Com or Trimmer Trim and for calibration of the Proportional Band with the position of P2 Setting of work point SP Set point P3 with NTC probe Proportional Band PB P2 SP gt Trimmer P3 SP gt Centesimal switch with NTC probe y V START AN SN START S dl START 8 2 8 2 Q2 position position ES position TRIMMER X C Y C CENTESIMAL X C Y C TRIMMER For X amp Y SETTING 10 60 20 20 SETTING N 10 60 20 20 SETTING Skale M mm 6 22 00 10 20 m Mm 3 C CD 10 E ES T wy c 20 20 12 c 30 25 8 M m 40 30 4 m M y
8. w ILD for 0 Vdc 5Vdc 10 Vdc 0 10 vee SIOE 0 10Vde V t A J X 60 C 35 C 10 C for Y 20 OC 20 C Mic ve ule NTC C A X Y H wo fig 34 During the calibration procedure it is advisable to start from position c so as to be positioned halfway through the work field and the connected transducer or sensor scale RGF 300 40 53 4 5 1 Centesimal SET POINT option mod M V X Y P3 FHASE 2 In the MASTER configuration the RGF300 can be chosen with the RGFPB1064 OPTION This plug support the SIMPLY Set point P3 with double digital commutators for DUAL Set Point S3 switch in 99 setting positions So it s possible to set two 2 working Set point ex Night Day Winter Summer etc with S3 switch led SP1 SP2 switch on P3 It is possible to activate the SET POINT the automatic regulation start point by activating the CENTESIMAL P3 centesimal switch 100 positions amp DUAL In the standard configuration the Set Point coincides with the maximum value of supply 100 or value of P4 max output SET POINT The regulation scales are as follows in Master versions e model M Pom 4mA to 20mA e model V from 0 Vde to 10 Vde Se Vdc e model X Pom 10 C to 60 C i e model Y from 20 C to 20 C The direction of regulation goes from 00 low values to 99 high values In SLAVE versions M and V this trimmer is not operative STANDING even if present Note for M
9. SAFETY RULES A This appliance has been designed to give excellent performance provided it is installed and used carefully in a suitable electric environment by qualified personnel The following rules must be obeyed when installing the regulator Follow the instructions in this manual exactly and observe all safety measures in force Do NOT tamper with or disassemble the regulator s internal components doing so will INVALIDATE THE GUARANTEE and may cause unnecessary damage The regulator does not contain components that can be repaired by the user The regulator must be suitably and effectively earthed by the installer according to the standards in force earthing is essential for the EMC filter to operate correctly The user must be protected from the electric supply and the motor must be protected from possible overloads in compliance with the standards in force DO NOT supply the regulator without the internal protection panel made from lexan DO NOT touch the electrical parts of the circuit when the power supply is connected under any circumstances Before supplying power to the unit check carefully that the power and earth are correctly connected If the mains supply is disturbed which may be due to other electrical power components causing irregularities in the supply power contactors it is recommended that supplementary three phase SURGE ARRESTER filters are installed directly on the regulator supply Avoid repeatedly conn
10. connected regulator including units of measurement and scale limits for the following signals SP INI IN2 Also indicates if the scale factor has been modifed from mA to bar Led unit Units of measurement colour function Led Function DIR Direct operation selected for calibration of the proportional band REV Inverse operation selected for calibration of the proportional band Inputs Forcing Forced transducer inputs for calibration of the proportional band RGF 300 44 53 COMMISIONING PROCEDURE Function keys Regulation Trimmer Displays 0 15 0 25 0 30 4 20 0 10 60 20 m v Le 4 OOONOOOO P2 P3 P4 M mm IB e D m ail m IS m M P1 Soft Start r P2 Proportional Band C DIV Dj L Se P4 max output P5 min output P6 Cut off Trimmer starting position P7 MANUAL mode H P T K RL1 AC LINE ae P P3 Set Point 7 SR PB1064 OPZIONAL HEAT el vof 170 pump O EE OIPIPIIIII los DOOOOOOOOO 72345678910 123456789 10 d ES e Pi Sao Dei te EEE ce e RI ENEE NITIA RGF 300 45 53 RGF 300 46 53 How to use the HELPr10 display module Connect the HELPI10 unit to the regulator to calibrate using the supplied cable this can be done with the regulator powered up and operating but without transducers or sensors connected Check the Leds corresponding to the input set up of the regulator are lit
11. lt lill RGF 300 Three phase voltage regulator WARNING A A HIGH LEAKAGE CURRENT first connect to earth The rgf300 is a voltage regulator for three phase motors which operates connected to the three phase mains voltage The regulator must be installed by qualified personnel who will connect the electric supply attach the cables in their permanent positions and commission the plant Incorrect installation of the rgf300 voltage regulator or the fan connected to it may cause damage to objects or people so ensure the instructions in this manual and all required security measures are read and followed carefully When receiving the goods check that the packing is intact in the event of any damage due to transportation notify the forwarding agent according to legal requirements The rgf series of products shown in this manual has been manufactured to the highest standards The manufacturer declines all responsibility for accident loss or damage caused by the use of these appliances These must be correctly installed by qualified personnel in conformity with their destined use and whenever needed must undergo correct maintenance which should be carried out while ensuring the safety of people domestic animals and goods The purchaser must previously ascertain the suitability of the product for the use it is intended for and assume all consequent risks and responsibility The rgf300 is a mains v
12. 0 20 L BAR mA V Leo 00000000 PREDISPOSITION LED INDICATORS 1 scale 0 15 bar 2 scale 0 25 bar 3 scale 0 30 bar 4 current loop Displays the mA values of INPUT signals 4 20 mA DISPLAYS THE STATUS OF WORKING PARAMETERS 5 Set Point 7 input IN2 6 input IN 1 8 Auxiliary 9 displays the output V 11 selection mA mode comand REVERSE 10 selection C mode gt 12 Vdc Power supply DIRECT for transducers INPUTS 13 Proportional Band FORCING 15 DOWN arrow 14 UP arrow 16 push botton for PB setting 10 11 13 14 15 16 push bottons for Proportional Band setting PB fig 39 RGF 300 43 53 SUMMARY TABLES FOR USE OF THE HELPI10 DISPLAY MODULE Technical characteristics Supply voltage 22 V 18 36 V From the connected appliance 0 15 bar 4 20 mA a via the 0 25 bar Input i 0 30 bar Layouts Main Set point C gt Transducerimpar mA Vs bar C RS Frransducer input 7 mA V bar C e output contro sign 7 A Transducer supply voltage e o y e Proportional band mA Vs bar C 225x105x40mm Dimensions 225 x 105 x 40 mm Wem OS kg Screen LCD 3 digit LED unit no Selected input indicates which signal is being displayed at any moment below the display m SBB indicate the set up on the
13. 0082 2 immunity standard and in particular EN 55011 class B for radiated disturbances EN 55011 class A for conducted disturbances ENV 50140 IEC 801 3 for susceptibility on the power supply ENV 50141 for conducted susceptibility on power lines IEC 801 4 for fast transistors bursts high frequency disturbances IEC 801 2 for electrostatic discharge ESD The tests and checks for conformity have been carried out according to the procedures described in the product s technical documentation The system used was formed by an rgf300 voltage regulator a control cable and relative controls a power supply cable a motor cable and a fan fig 2 Responsibility for the final characteristics of the system or plant regarding the EMC directive rests with the installer The equipment must be installed in observance of the regulations in force using the information presented in this manual RGF 300 6 53 Fig 3 represent the rgf300 regulator with the general contents Y QC 909939 P1 P2 P3 P4 P5 P6 bar bar 0 25 0 15 4 20mA 4 20mA SP SP RA407C R1342 e 31 30 e 36 34 40 38 VENTILATORE FAN VENTILATEUR VENTILATOR fig 3 Z r f 300 Regolatore di Tensione Trifase g Three Phase Voltage regulator O P S P2 Banda Prop Prop Band Bande prop P Bereich P3 Temperatura Temperature punto di lavoro set point point de con
14. 10 sq mm 20 6 AWG Cu RGF 360 Trailing cable with rated cross section 10 sq mm 20 6 AWG Cu 89 392 EEC Directive 73 23 EEC Directive CEI EN 60204 1 Safety of machinery 93 68 EN 50081 2 Generic standard for industrial environment emission TECHNICA EN 50082 2 Generic standard for industrial environment immunity TE EN 55011 class B for radiated disturbance 89 336 EEC Directive EN 55011 class B for conducted disturbance ENV 50140 IEC 801 3 for susceptibility on the supply ENV 50141 for conducted susceptibility on the signal lines IEC 801 4 for fast transients burst high frequency disturbance IEC 801 2 for electrostatic discharge ESD Table 3 RGF 300 15 53 2 0 ELECTRICAL CONNECTIONS 2 1 POWER CARD ELECTRICAL CONNECTIONS For supply and load connection reference should be made to the diagrams shown in fig 8 making sure the section of the cables is adequate to the connected load The power cables supply and load must be installed separately from the control cables analogue inputs and ON OFF inputs outputs keeping the maximum distance possible between the conductors Do not place power cables with signal cables in the same raceway If the cables cross one another ensure it is at 90 ATTENTION connect the earth conductor to the screw placed purposely beside the dissipator Use heat resistant cables able to withstand temperatures greater than 90 C SURGE ARRESTER elec
15. 4 selection jumper The RL1 relay is mounted on the control card The relay has a commutation contact for external signalling of the operating status For the operation mode of this output relay configure jumper J14 so that all alarms are enabled as shown in the table below POWER SUPPLY T K STOP FAN SPEED J14 RL1 RST S2 UVW RGF ONI ON ON ON Unable Unable O K OFF OFF OFF Unable Unable K O ON2 ON ON ON OFF Unable O K OFF OFF OFF ON Unable K O ON3 ON ON ON OFF ON O K OFF OFF OFF ON OFF K O Table 6 Besides relay RL in rest conditions fig 17 shows the three positions for J 14 ONI standard factory selection ON2 ON3 RL1 GENERAL ALARMS OFF SELECTIONS ON 1 ON2 ON 3 ON1 ee ON1 ee ON1 posses Je ON2 mm oN2 o el on2 Ed e of ONS mm ON3 M rgf rgf rgf ALARM RELAY ue NA CO dim mein imm Remote ON OFF BH Remote ON OFF fig 17 RGF 300 27 53 3 0 COMMISSIONING PROCEDURE Having carried out the electrical connections to the regulator it is time to perform the configuration regulation and commissioning operations for the rgf300 regulator by following the procedure below It is important to remember that the settings of the jumpers Jn are only to be modified to change the configuration or the operating mode of the regulator set in the factory check the label on the right side of the casing 3 1 Jumpers This paragraph descr
16. F He Zams 06 155 32 96 96 66 260 410 RGF 300 9 53 Table 1 RGF 300 10 53 1 3 PRINCIPLE OF OPERATION The rgf300 series appliances are voltage regulators that use the phase cutting principle totally controlled over three phases The regulators also referred to as speed controls have been designed to change the average voltage on the following types of equipment according to a control signal e asynchronous three phase motors connected to fans pumps agitators mixers e electrical resistor devices with sectioned single three phase Regulation occurs as a result of cutting of the input sinusoid Regulation does not generate any torque knock or pulsation and is particularly quiet Any voltage loss is contained within a maximum limit of 1 Fig 6 shows a block diagram of regulator rgf300 CONTROL CIRCUIT POWER CIRCUIT A Power circuit B Mains filter and EMC protective devices C Power supply and synchronism signals D Insulators for the control signals of the power devices E Regulation and control circuit F Modulator for control of the E power devices TIVA m c zu The speed regulators are sized to withstand a starting current equal to more than twice the rated current therefore when choosing a regulator it is essential to take into consideration both the motor starting current and the type of motor It is actually well known that while the starting current in
17. LTIDRIVER INPUTS OUTPUT 2 3 ELECTRICAL CONNECTIONS ON OFF INPUTS OUTPUT nennen eneen eneen 2 3 1 OPERATING SELECTION ccsssseeeee II essen e e ee e e e e nee COMMISSIONING PROCEDURE ege eege EN ENEE EEN epa cues ed 3 1 JUMPERS 2 heeten b ienie ini A 3 2 MASTER VERSION M 4 20mA FOR 1 OR 2 CONTROL INPUTS ennn 3 3 MASTER VERSION V 0 10VDC FOR 1 OR 2 CONTROL INPUTS 3 4 SLAVE VERSION M 0 20mA FOR 1 OR 2 CONTROL INPUTS esee 3 5 SLAVE VERSION V 0 10VDC FOR 1 OR 2 CONTROL INPUTS onee 3 6 MASTER VERSION X OR Y NTC C FOR 1 OR 2 CONTROL INPUTS cece eee 3 7 OPTIONAL MODULE FOR DOUBLE SET POINT CONFIGURATION SP1 SP2 CONTROL TRIMMER isso re eee kn eno aep pee ede ve eee VER ERR ENNEN NENNEN ENN EEN ENNER d EN eenen 4 1 MAX OUTPUT REGULATION TRIMMER P4 een 4 2 MIN OUTPUT Rice vreden weent TRIMMER PS e 4 3 CUT OFF REGULATION TRIMMER P 4 4 PROPORTIONAL BAND REGULATION TRIMMER RI 4 4 1 VERSIONS WITH MASTER REGULATOR OPERATION ce 4 4 2 VERSIONS WITH SLAVE REGULATOR OPERATION vennen 4 5 SET POINT REGULATION MODELS M V X Y TRIMMER P3 annen 4 5 1 DECADIC SET POINT OPTION MOD M V SvVib cece eee eee 4 6 SOFT START REGULATION annen eenen TRIMMER Pl LL 4 7 MANUAL REGULATION HEAT PU
18. MB 2 MB 3 terminals S1 OPEN operation with variable speed regulation Led heat pump OFF S1 CLOSED MANUAL operation at fixed speed Led heat pump ON The S1 contact allows the regulation to be commutated from AUTOMATIC OPERATION power supplied according to the control signal to MANUAL OPERATION with fixed supply power Activation of this function is displayed by the heat pump Led lighting up Application example WINTER SUMMER OPERATION of heat pumps The fans connected to the regulator can be activated depending on the temperature or pressure detected or by switching S1 CLOSED voltage to the fans can be kept constant equal to the value set with P4 100 0 for the required time CALIBRATION switch the S1 contact to CLOSED Led heat pump ON and regulate the position of the P7 trimmer to the desired voltage then open S1 Led heat pump OFF This will reset the automatic speed regulation on the basis of the control signal The operation described here can be achieved by means of electromechanical devices However it is extremely simple if the cutting regulators is controlled by an external regulator e g Energy Light type Eliwell which can automatically control the S1 contact S2 STOP MB 4 MB 5 terminals S2 OPEN Regulator operational S2 CLOSED Operation stop With S2 CLOSED operation of the cutting regulators is stopped via a remote contact This is useful for example to stop fans during d
19. MP TRIMMER P7_ een HELPI PORTABLE DISPLAY UNIT 41 eee eeesecessevec eneveet veuevaveVesvesouo ee Ese ee e e ao eed voee eT RGF300 EASY REFERENCE COMMISSIONING GUIDE ENEE e TROUBLESHOOTING Fais eee saei ee Aue eH uS COSA soak wesc aee voee en esce ss or ended nta LIABILITY AND RESIDUAL RISKS deefe ees ee estu ee eese esee veeseseVeseeto HEEN DISCLAIMER eee eese ee ss Ness e cose eee sere see eduve ee a eee aee Pe eo LETTIERI de Fe TREES EET deed RGF 300 4 53 1 0 PRESENTATION THANK YOU for choosing an rgf300 series three phase voltage regulator designed specifically to give the maximum yield and greatest ease of use Like all our products it has been built to the very highest quality standards using electronic components of the utmost reliability which have undergone functional tests that guarantee use of the product for at least 30 000 hours of continuous operation without problem The rgf300 regulator is a power unit designed to meet requirements of quality and flexibility of use in plants and machines in which proportional variation of the speed of rotation of the fans is essential The regulator is housed in a GEWISS GW Plast 120 C case fig 1 which guarantees high heat resistance during ordinary use 120 C increased mechanical impact resistance IK 08 and a protection level IP55 that allows the regulator to be installed out of doors Inside the case there is a lexan protection panel d
20. Y pa zE NC NA Com i in z 1 tal TK Prataction ET fe srt i 5 4 AuXiLiARY 4 AuxiiARY FE z INPUT INPUT INPUT INPUT 0 20MA 0 20mA 0 20mA 0 20mA 0 10Vdc 0 10Vdc SEO coum NTC NTC 0 10Vdc 0 10Vdc Fan Speed OFF Go S399 fig 10 RGF 300 18 53 One of the main applications of the rgf300 series regulators is the control of voltage and speed of rotation of fans This is modulated to keep temperature or pressure constant as a work point for one or more refrigerating circuits condensator or evaporator mode In the STANDARD condition the fan reaches maximum voltage in output P4 coinciding with the work Set point Directions are given below for connection or calibration of rgf300 regulators with active pressure sensors NTC temperature sensors and other possible applications for direct or remote regulation 2 2 1 Connection of XSK pressure transducers 4 20 mA The table below lists the information necessary for calibration of the Set point page 34 with the position of P3 referred to the Centesimal Commutators Com or Trimmer Trim and for calibration of the Proportional Band with the position of P2 Set Point SP P3 for 4 20mA setting with Proportional Band PB P2 setting for SP P3 T
21. age depends on the control signal prevailing between the two available at the inputs which is chosen by means of the pre POWER unit established mode according to the specific appliance regulating curve Vers M V The action can be DIRECT with the output increasing as the input increases or REVERSE with the output decreasing as the input increases OPERATING Standard Config output increasing as the controlled variable increases CHARACTERISTIC The output voltage changes to keep set to the target point selected with the Set Point the quantity measured by the transducer prevailing R between the two available at the inputs which is chosen by means of the egulator Vers M V X Y pre established mode greater or lesser in value The action mode either direct or reverse is chosen in consideration of the controlled quantity transducer characteristic and load action Standard output increasing as the controlled variable increases Vers M Two 0 20 mA Ri 100 hom analog inputs priority to the greater std Control Vers V Two 0 10 Vdc Ri 10 khom analog inputs priority to the greater std Vers X Y Two kohm analog inputs for the NTC sensors supplied 10KQ E ers X De INPUT 25 C priority to the hottest sensor std SIGNALS Heat protection ON OFF input motor protection NC thermal contact Start Stop ON OFF input Off Vin 0 Start ON VIN 24V Stop Automatic Manual ON OFF input Off Vin 0 Automatic ON VIN 24V Manual S
22. axial fans is equal to 2 or 3 times the rated current the same current in centrifugal fans can have values around 7 or 8 times the rated current As far as the choice of motor is concerned it is advisable to choose motors suited to the type of regulation As a general rule the best suited are motors with high slipping resistive motors e defluxed motors tropicalised motors CLASS H motors as these allow better performance to be obtained with speed changes they are quieter and start with lower current When choosing a motor it is always advisable to contact your own supplier and order a motor which is suitable for speed control by voltage change Subsequently practical trials should be carried out on the motors or prototype machines in order to check their correct operation After choosing the motor the speed regulator must be ordered according to e the rated voltage e maximum power required load Amperes bearing in mind the starting current RGF 300 11 53 After the motor characteristics have been checked the following should be defined in order to identify the type of operating mode and application 1 3 1 Operating mode The rgf controls allow two different types of operation depending on which type of input is available e operation as REGULATOR also called MASTER the phase cutting regulators is directly connected to one or more sensors the phase cutting is a function of the values selected for O Set Point P3
23. bi setting fig 37 22 m M 10 4 7 MANUAL regulation P7 trimmer P7 Adjusts the operating speed in MANUAL mode MANUAL it allows a constant output voltage value to be set from between 100 and the CUT OFF P6 value using trimmer P7 Once S1 is closed with a 0 V potential contact turn P7 anticlockwise starting from position M until the desired voltage value is reached The standard preset position for P7 is M 100 40 Sie C C MANUAL output P7 Eur setting fig 38 WARNING m 0 o P6 M 100 The position of trimmers marked with a spot of red paint factory calibration must not be altered RGF 300 42 53 5 0 HELPI 10 PORTABLE DISPLAY UNIT All calibration operations described can easily be carried out with the portable module called HELP110 for display of work parameters All three phase regulators in the rgf300 series are fitted with the CN2 connector located between the MA and MB terminal boards After connecting the HELPI10 module the settings made with the regulator work parameter trimmers can be chosen and displayed even if the rgf300 is being supplied on the workbench The portable HELPI10 unit is shown in fig 39 with function keys described CONNECTION CABLE TERMINAL UNIT rgf PIENE MEMMIUS ATA UNITS OF MEASUREMENT LED INDICATORS rgf SIGNALS LED INDICATORS 0 15 0 25 0 30 4 20 0 10 6
24. c 35 0 50 35 00 y c 18 C c 60 40 4 c 70 45 8 un 80 50 12 SEN R 90 55 16 1 Ay c M 64 23 99 60 20 c M 30 C Tab 5 Connection of the two NTC sensors is shown in fig 12 below Also shown is the type of operation standard and operating regulation controls Master X for scale 10 C to 60 C ANALOG INPUTS for NTC PROBE ATTENTION p Pe EEn MENE output fan PAIR GS P2 GEO P3 A o PSE E E fig 12 RGF 300 20 53 2 2 3 Connection of other sensors and control signals Active sensors with 0 20 4 20 mA current output M vers and 0 10 Vdc voltage output V vers Connection can usually be made to the rgf300 regulator with one or two active sensors with current output control signal 0 20 mA or voltage output 0 10 Vde with conductors having two or three wires If the sensors have an earth Gnd as well as a signal IN reference and they accept a 24Vde max 40 mA supply they can be directly connected to and supplied by the rgf300 regulator fig 13 The diagram below shows the connection of two differential pressure transducers used to maintain constant pressure air delivery from a fan in a controlled air flow plant laminar flow also shown is the type of operation standard and the operating regulation controls ANALOG INPUTS for DIFFERENTIAL TRANSDUCER GND DIFFERENTIAL TRANSDUCER CONTROLS PANNEL Refrigerant TE pi Vap
25. cted by a magnetothermal switch fitted upstream of the cutting regulators Installation of magnetothermal protections is the responsibility of the installer It is advisable to fit an automatic magnetothermal protection with a C intervention curve having the following capacity magnetothermal RGF 300 models rgf 312 20 A rgf 320 rgf 325 rgf 340 rgf 360 Table 2 RGF 300 13 53 1 5 rgf300 TECHNICAL CHARACTERISTICS Voltage 420VAC 10 three phase 230 VAC and 500VAC on request SUPPLY Frequency 50 Hz 60 Hz Overvoltage protection for installation Category II 4 KV RGF 312 12 A up to 50 C environment over decrease by 0 6 A C RGF 320 20 A up to 50 C environment over decrease by 1 0 A C CURRENT Rated RGF 325 25 A up to 50 C environment over decrease by 1 2 A C RGF 340 40 A up to 50 C environment over decrease by 1 8 A C RGF 360 60 A up to 50 C environment over decrease by 2 5 A C Overload 200 of the rated current max 10 every 3 Control circuits 10VA RGF 312 72 W 12A POWER a RGF 320 120 W 20A Thermally dissipated RGF 325 150 W 20A RGF 340 240 W 40A RGF 360 360 W O 60A OPERATING Totally controlled three phase cutting with compensation for inductive loads and motors without need for PRINCIPLE connection to NEUTRAL The output volt
26. d if necessary install mains or surge filters upstream of the cutting regulators C3 By pass configuration with short S3 Check input and output phase circuited phases correspondence After correctly operating for a certain C1 Lack of ventilation and or high S1 Check the unit is mounted time cutting regulators supplies the working temperature in the unit vertically check the room temperature maximum voltage load regardless of where the unit is installed control signal C2 Detection transducer faulty or short SZ Check input control voltage MA circuited terminal board Unit regulates load in ON OFF CI Proportional band too narrow S1 Increase the proportional band value operation with respect to system response with trimmer P2 C2 CUT OFF too high 80 S2 Decrease value of P6 Unit has suspended regulation and Led C1 External safety device has S1 Check unit reset type see position TK ALARM is on intervened contact MB 6 7 of jumper J13 S2 Check activation of the safety device and the cause of the intervention Unit has suspended regulation and Led C1 A fuse has burnt out or one of S1 Replace supply line fuse and check AC LINE ALARM is on supply phases is absent beginning of line upstream Output voltage constant even with C1 The MAN contact heat pump is 1 Select correct operating mode NO control signal activated and MANUAL closed contact by activating contacts 2 3 of Heat Pum
27. e appliance and switches on the phase absent alarm signal LED AC LINE ALARM FEDIECTIONS EMC i ER According to EN 55011 CEI 110 6 Class B integrated mains filter i ISM appliances directly connected to low voltage power mains Overvoltage protection According to EN 61000 4 5 overvoltage Category II 4 KV RGF 312 286 x 201 x 130 mm 4 0 kg RGF 320 351 x 237 x 181 mm 5 5 kg Dimensions and Weight RGF 325 351 x 237 x 201 mm 8 0 kg RGF 340 416 x 318 x 178 mm 11 0 kg CASE RGF 360 460 x 318 x 220 mm 17 0 kg Materials GW Plast 120 C and black anodised aluminium Degree of protection IP 55 Environmental pollution Strong pollution Fire resistance Category D INSULATION Case Class I use of earthed protection cable Control circuits 4000V between control input and mains voltage components Working 20 T 50 from 20 C to 50 C DEMEN URN a 30 T 85 from 30 C to 85 C HUMIDITY RH lt 85 INSTALLATION Vertical wall mounting only with N 4 6 mm holes RGF350 with N 4 8 slotted holes SIGNAL Trailing cable with rated cross section 1 5 sq mm 22 14 AWG Cu RGF 312 Trailing cable with rated cross section 2 5 sq mm 20 12 AWG Cu ELECTRICAL RGF 320 Trailing cable with rated cross section 4 0 sq mm 24 10 AWG Cu CONNECTIONS POWER RGF 325 Trailing cable with rated cross section 10 sq mm 20 6 AWG Cu RGF 340 Trailing cable with rated cross section
28. ecting and disconnecting the power supply to the regulator a constant supply keeps the regulator at working temperature and eliminates problems caused by condensate inside the protection case Alternatively use the remote terminal board contact MB S2 ON OFF The S2 ON OFF contact on the MB terminal board does not cut the mains supply and therefore cannot be used as a safety switch Install the regulator out of direct sunlight so that the container cannot get overheated and cause a reduction in the maximum load current The appliance may operate at environmental temperatures up to 50 C Do not install it where this temperature may be exceeded or the integrity of the regulator will be compromised and the appliance may make the user appliance operate at full load 100 with all consequent effects The appliance must be stood vertically to encourage heat dissipation and to ensure there is a sufficient air circulation and free space measuring 150 mm above and below the regulator If several regulators are to be grouped together on a single electric board provide forced air circulation with a fan or cooling unit of sufficient power Use the holes on the lower and power terminal board sides of the appliance for entrance of the connection cables This will prevent water dust etc from getting in and will ensure the IP55 protection level is maintained using adequately sized cables and sheaths of suitable quality Reassemble and check the cover of
29. efrosting or to link fan operation to activation of a central unit e g compressor or an alarm e g max min temperature S3 SP1 SP2 MB 1 MB 3 terminals S3 OPEN Automatic regulator operation with SET POINT 1 S3 CLOSED Automatic regulator operation with SET POINT 2 The S3 contact allows the reference Set point to be commutated from SP1 to SP2 With S3 OPEN the regulator works with SET POINT 1 With S3 CLOSED the regulator works with SET POINT 2 Activation of this function is displayed by the SP1 and SP2 Leds lighting up on the optional RGFPB10640 card This function is useful for example for day night or winter summer operations Selection is made by means of an external contact in automatic or manual commutation mode N B this control is only operative if the optional RGFPB10640 card is present on the regulator TK TK1 TK2 MB 6 MB 7 terminals Regular operation Led TK ALARM OFF Operation stop Led TK ALARM ON Intervention of an external safety device opens a 0 V potential contact and halts operation of the regulator Led TK ALARM ON is lighted up In plants with fans in parallel individual protection devices must be used for each motor connected so as to reduce the risk of a total stop To restore normal conditions RESET see the position of jumper J13 For operation with J15 2 the configuration required is MB 6 7 NC RGF 300 26 53 RL1 ALARM relay MB 8 9 10 terminals with J1
30. electrical connection and the supply voltage are given on the motor s specifications plate The sense of rotation of the motor can be altered by swapping the connections of two of the three supply cables It is important to keep the motor power supply cable as short as possible to reduce the level of interference and leakage currents to a minimum 10 15 mt if the cable has to be long an auxiliary three phase filter of exactly the same power as the regulator must be installed on the regulator output The figure below shows the star and delta connection configurations STAR CONNECTION DELTA CONNECTION fig 8 The rgf300 regulator can control several motors connected in parallel but the absorption of the motors total current must never exceed the rated current as given on the rgf300 s specification plate The speeds of the motors vary at the same time though any differences in behaviour during start up and at low speeds are due to slight differences between the motors even if they are of the same type However if the required speeds of the motors are different motors must be used with different rated speeds Bear in mind though that motors with very different characteristics create different electrical situations and these may cause problems on start up and at low speeds caused by different resistances of the stators which require different voltages on start up and at low speeds 1 4 1 Magnetothermal protection rgf300 devices must be prote
31. et Point 1 Set Point 2 ON OFF input for Set point 1 2 commutation Only with PB1064 Two 22Vde 10 20 40 mA non stabilised outputs protected Transducer supply a from short circuit Potentiometer supply Two 10Vdc 5 mA stabilized outputs oes Auxiliary control 0 10V 1 mA analog output for cascade control of other SLAVE units RLI service relay NO NC relay contact free from potential for separate or joint signalling of alarm signals absent start enabling voltage supply Version amp Input M 0 20 mA V 0 10 Vdc X 10 60 C Y 20 20 C Target value 0 20 mA 0 10 Vdc 10 60 C 20 20 C Proportional range 0 4 4mA 0 3 3 5 Vdc 3 30 C Ro Minimum limit Cut Off Adjustable from 0 to 100 PRESETTINGS Maximum limit Adjustable from 100 to 0 Acceleration ramp Adjustable from 1 to 10 Direct Reverse presetting Action mode of input prevailing over output Direct or Reverse Prevailing input presetting Selection mode for prevailing input greater smaller AC LINE ALARM ON Red Signals locked state due to absence of one supply phase LED T K ALARM ON Red Signals locked state due to motor thermal protection NC contact opening SIGNALLING RL1 ON Green Signals RLI service relay energised state MANUAL MODE ON Yellow Signals MANUAL operation state at fixed speed RGF 300 14 53 Mains surveillance Continually checks presence of the three mains phases when one phase is absent it stops th
32. for the operations indicated on the label on the side of the casing if modifications are required describe and indicate the modifications made on the TECHNICAL ASSISTANCE MODULE WARNING e The configuration with NTC temperature sensors is not compatible with other configurations It is not therefore possible to alter the position of the jumpers to pass from operation with NTC sensors to operation with active sensors or control signals in mA or Vdc nor to change the C work field scale of the rgf regulator RGF 300 30 53 3 2 MASTER version M 4 20 mA for 1 or 2 control INPUTS pa P5 pe P CU VIVI IO MY Je P1 Soft Start P2 Proportional Band P3 Set Point P4 max output P5 min output P6 Cut off P7 MANUAL mode H P T K RL 1 AC LINE ALARM ON ALARM o 7 1 1 Be o J13 fe E J11 J12 fx J14 HEAT pump O J15 M 00009000000 000000028 lera DOODDOOOOO 1234567989 10 12345678910 fig 19 3 3 MASTER version V 0 10 Vdc for 1 or 2 control INPUTS P P4 Di Y p Y Y O I e y Wi P1 Soft Start P2 Proportional Band P4 max output P5 min output iji EE 12 P6 Cutoff Ki P7 MANUAL mode H P er J6 AC LINE ALARM ALARM J11 J12 HEAT Safe pump oO000000000 EE GE 123456789 10 123456789 10 fig 20 RGF 300 31 53 3 4 SLAVE version M 0 20 mA for 1 or 2 control INPUTS
33. he SLAVE configuration the P2 trimmer is already calibrated and varnished to hold its position in the factory and must NOT be altered 100 100 400 Vac 40 100 Setting Max output at max INPUT of mA Vdc fig 33 RGF 300 39 53 4 5 SET POINT regulation models M V X Y P3 trimmer PHASE 2 P3 It is possible to activate the SET POINT the automatic regulation start point by activating the P3 trimmer SET POINT In the standard configuration the Set Point coincides with the maximum value of supply 100 or value of P4 max output The regulation scales are as follows in Master versions e model M from OmA to 20mA e model V from 0 Vde to 10 Vdc e model X from 10 C to 60 C e model Y from 20 C to 20 C The direction of regulation goes from m low values to M high values In SLAVE versions M and V this trimmer is not operative STANDING even if present Note for M versions the regulation refers to the current control signal mA for V versions the regulation refers to the voltage control signal Vdc for X and Y versions the trimmer regulation refers directly to the temperature in C It is therefore necessary to change the range of the sensor being used to work out the corresponding measured quantity control signal Fig 34 shows the values and positions of the trimmers for the different MASTER configurations for 4 mA 12mA 20mA 20mA ll A Al 4 20mA He y A
34. ibes the preset functions of the programming jumpers the jumpers used on the card are of the following types 2 3 6 and 10 contacts see fig 18 The term Jumper refers to the moveable element which connects two 2 contacts 3 contacts 3 contacts 3 contatti 3 contatti 1 2 2 contacts 6 contacts 2 contatti 6 contatti 1 2 3 fig 18 For 2 contact jumpers the function is activated when the jumper is present position ON For 3 contact jumpers there are two selection types e position I i e the middle jumper connected to jumper no 1 e position 2 i e the middle jumper connected to jumper no 2 For 6 contact jumpers J5 and J14 there are 3 selection types pos 1 2 3 fig 18 shows position 1 For 10 contact jumpers J6 there are 5 selection types pos 1 2 3 4 5 The main jumpers on the rgf300 cutting regulators control card are described below Selects the work field of the Set point P3 P3 with control from active sensors for 4 20mA or NTC ohm sensors for C P3 with control from active sensors for 0 10 Vdc Activates the standard Set point or the auxiliary optional double digital Set point this control is only operative if the RGFPB10640 card is present on the regulator Set point P3 with trimmer mounted on the PB 1018 3 basic regulation card Set point P3 with double digital commutators in 99 positions mounted on the RGFPB10640 it also inhibits operation of P3 standing when in
35. ilable in two C scales MASTER X with temperature scale 10 to 60 C MASTER Y with temperature scale 20 to 20 C The scale limit values for the Trimmer with P3 Set point calibration are inverted compared to the current mA and voltage Vdc scales for the active sensors WARNING e The configuration with NTC temperature sensors is not compatible with other configurations It is not therefore possible to alter the position of the jumpers to pass from operation with NTC sensors to operation with active sensors or control signals in mA or Vdc nor to change the C work field scale of the rgf regulator RGF 300 33 53 3 7 Optional module for dual Set point configuration SP1 SP2 The rgf300 regulator can be used in versions MASTER M V X Y with a reference dual Set point by using the optional module card RGFPB10640 for double control Set points Insert the card in the CN3 connector on the rgf300 regulator see the position in fig 25 When the card is positioned with J2 ON2 Trimmer P3 is disabled standing and substituted by two pairs 99 position digital commutators Activating the contact on terminal board MB 1 3 it is possible to change the regulator s work point The commutation is shown by the lighting up of the SP1 and SP2 Leds on the card above the centesimal commutator for setting of the Set points Fig 26 shows the RGFPB10640 card and the reference table for inputs in mA bar C for pressure tra
36. ing Rapid connector to the portable HELPI10 unit for display of the rgf300 s work parameters Terminal board MA for connection of the control analogue input signals Terminal board MB for connection of the ON OFF inputs and outputs The power card contains the following connection components e power supply terminal boards MI for three phase input supply R S T M2 for three phase output U V W M3 for the Earth PE connection RGF 300 8 53 1 2 INSTALLATION AND MECHANICAL DIMENSIONS The rgf300 regulator must always be securely assembled and fixed using the four 4 attachment screws on the side fins before connecting to the power supply The holes provided on the lower part of the regulator are for entry of the electric connection cables e four pole line three phase Earth to power the regulator four pole line three phase Earth to power the load e signal cable lines for the analogue inputs and digital outputs To make installation simpler all regulators are also fitted with stuffing boxes in PA6 polyamide class V2 IP68 for use with the power and signal cables The regulator is cooled by natural convection and so air must be able to pass freely below and above the appliance Therefore ensure there is at least 150 mm of free space above and below the regulator poliamide PA6 classe V2 IP 68 fig 5 MODELS A B D E
37. isplaying instructions for use and commissioning of the rgf300 The 12A rgf300 is shown in fig 1 Control for ALIMENTAZIONE POWER SUPPLY e ea ALIMENTATION pol P2 EE _ 2 EINGANGSSPANNUNG E Q J Vdc mA NTC kohm HBBE a ES HELPI 10 TET Of wus Display RGF MEI Vdc INPUT 1 mA EXTRA INPUT INPUT 2 NTC E ALARM RELAY Protezione termica Thermal contact Contact thermique Thermokontakte REMOTE ON OFF MANUAL mode HEI fig 1 Before installing the device you are invited to read this manual which describes the necessary procedures for correct installation and commissioning of the machine A rgf300 A RGF 300 5 53 3 Motors Set Point 1 gt Set Point 2 Like all our products the rgf300 series bears CE marking as required by directive 89 336 ECC and its subsequent modification EEC 92 31 on electromagnetic compatibility Since all these products are not used as stand alone appliances but incorporated into other plants or machines the standards compatibility test was carried out under typical operating conditions The essential requirements of the directive are satisfied by conformity to generic standards for heavy industry GARANZIA GUARANTEE GARANTIE GARANTIE 89 336 EEC 20 85 50 R lt 85 89 392 EEC EN 50081 2 emission standard EN 5
38. just the corresponding trimmer P6 and see the current value on the display Press key 9 C the C Led of the selected input and the Led of the unit of measurement 26 will light up The current value of the cutting percentage of voltage supplied by the regulator will be displayed P4 P5 P7 trimmer set up Press key 12 V the V Led of the selected input and the Led of the unit of measurement V will light up The value of the supply voltage for transducers connected to the service will be displayed at circa 22 V rated refer to the user manual of the connected regulator for details of the connection to the terminal board Press key 13 PB the PB Led of the selected input and the Led of the unit of measurement mA bar C V corresponding to the regulator input set up will be displayed The last value of the Proportional Band PB set will be displayed differing for each type of input signal mA Vdc bar C modifiable using arrow keys 14 and 15 see the limits shown on fig 32 To increase press key 14 UP up arrow decrease press key 15 DOWN down arrow without connecting the sensors to inputs IN1 and IN2 Press key 13 Set the desired PB value using keys 14 amp 15 Choose the operating mode of the regulator by pressing either DIR or REV Press key 16 Inputs Forcing the corresponding yellow Led will light up Adjust the regulation trimmer of the P2 band to read the 50 0
39. lay it on the P5 value Once the P4 P5 and P6 values have been defined and therefore become fixed reference parameters define the work field values P2 Proportional Band and work point value P3 Set point in the MASTER CONFIGURATION with control in mA Vdc C P3 point where the system reaches maximum supply to the load starting from MIN OUT or CUT OFF P2 point where the system reaches the MIN OUT control value for the fans How can you determine the Use the P2 trimmer Starting from position m turn P2 proportional band First check the trimmers work anticlockwise until the position parameters fig 32 considered as the optimum regulation is reached P2 How can you determine the Set Use the P3 trimmer Starting from position e turn P3 Point First check the scale zone in which clockwise or anticlockwise until the P3 to operate fig 34 position considered as the optimum regulation is reached Once P2 and P3 have been positioned check the modulation system and slowly correct by using P3 if the Set point is not working at the required pressure or temperature and with P2 if the fan voltage variation is too fast or too slow RGF 300 48 53 SLAVE CONFIGURATION with control in mA Vdc With this configuration once the P4 P5 and P6 reference parameters have been defined the regulator carries out speed changes on the basis of the control values which are transmit
40. m M m M 3 ES 3 lt E TRIMMER AUXILIARI ON OFF S2 3 BL CONTACTS Date Operator Name Company RGF 300 53 53 lt lill Eliwell amp Controlli s r l via dell Industria 15 Zona Industriale Paludi 32010 Pieve d Alpago BL ITALY Telephone 39 0437 986111 Facsimile 39 0437 989066 Internet http www eliwell it RGF 300 rel 11 03 eng cod 8MA10033
41. mproper use incorrect installation e external electrical causes e en gt Please keep this sheet near the rgf regulator To improve the assistance service and speed fault diagnosis please fill this sheet in and send it to the Assistance centre together with the regulator in the event of a breakdown Customer Regulator model Serial no Date of installation Date of breakdown Description of the fault Noisy motor TT Burnt out motor Burnt fuse Unbalanced phases Protection interrupt phaseR phaseS _ phase T Blocked motor Differential interrupt Description Controls and contacts check card Soft Start Max Out Lim Manual contact Prop Band Min Out Lim Stop contact S2 Set point Cut off SPI SP2 contact Manual HP Heat contact L INPUT 4 20 mA Transd fd 24 Vdc 40 mA C INPUT 0 10 Vdc Output 1 Potent fd 10 Vde 5 mA _ INPUT NTC Output 2 RLI B109 B 10 8 etails of the connected load Manufacturer Type L fans _ electric resistors Electrical data VAC _ Start amp _ Code J Motor Electrical data Electrical data _ star _ delta Phase R S Traction direct belt driven Phase S T Mechanics _ helical _ centrifugal phase TR Operator name Company stamp RGF 300 52 53 Rgf300 INSTALLATION FEATURES rgf FEATURES FAN FEATURES Serial N Load Amp Power Supply p Pressure Transducer NTC probe WORKING PARAMETERS 8 M 2 2
42. nsducers and C for NTC sensors in the different work ranges 9 0 1 9 0 1 9 0 4 9 0 8 2 8 2 8 DP 2 7 3 7 ais 3 7 3 SCH SC SC z SWI SW2 SW3 SW4 L sp1 l L sp2 LL pay JEE DDI sc CN3 RGFPB10640 OPTIONAL HEEL P3 P4 P5 P6 TITTI SW1 SW2 SW3 SW4 L sp L sp2 Al PB10640 optional 1 1 P7 L 2 2 M m J10J11 J12 y HEAT j178 pump 9 sees j 16 f 0000999900 n ue eea 123456789 10 23456789 10 000090990 fig 25 IS 0 30 bar D GND DID Te a Gin Check kohm IN HAE 5 5 5 5 6 6 7 8 P1 Soft Start P2 Proportional Band P3 standing for J2 2 P4 max output P5 min output P6 Cut off P3 Dual Set point P7 MANUAL mode H P FL T K RL 1 AC LINE ALARM ON ALARM Sal E J 14 PRL1 jis f di O000000900 12345678910 TE 0 30 bar wem ibl re A Ets RGF 300 34 53 4 0 CONTROL TRIMMER WARNING Before starting the regulator calibration phase check the position of the trimmers as shown in figs 26 and 27 The position of the trimmers marked with a spot of red paint factory calibrated trimmers must not be altered fig 26 STARTING configuration for MASTER regulator calibration trimmers P2 P3 P4 P6 P DONDE fig 27 STARTING configuration for SLAVE regulator calibration trimmers
43. oltage regulator which uses the phase cut principle completely controlled over the three phases It has been designed to vary the effective voltage on three phase asynchronous motors for fans following a control signal either mA VDC or Ohm The appliance is manufactured for industrial use and therefore meets the EMC standards that relate to industrial environments Using the appliance for purposes other than the ones described above will be considered incorrect In particular the appliance may NOT be used to supply machine tools or any other machines where the motor torque speed characteristic is not quadratic If the equipment is intended for civil commercial and or light industrial use supplementary components and other types of equipment are required which can be supplied on specific request from the purchaser In this case the purchaser must provide a suitable design of the plant in which the appliance is to be installed compliant with EN 60555 2 3 standards regarding disturbance produced by electrical household appliances and the like e We decline all responsibility for any errors in the catalogues publications or other written documents The information in this manual is not binding and we reserve the right to make changes to the products without prior notice at any time and in any way that we deem convenient for production purposes or useful for increasing functionality and performance RGF 300 2 53 A
44. ontact has been reset AUTOMATIC RESET The standard position is ON2 Selects the operation of the RL relay when selected the relay is active position ON in the absence of alarms Alarm Led OFF when selected the relay is active position ON in the absence of alarms Alarm Led OFF and with open remote STOP control signal when selected the relay is active position ON in the absence of alarms Alarm Led OFF with open remote STOP control signal and with supply of voltage to the load in course The standard position is ON3 Selects the operation of the heat protection when selected the TK heat protection contact is excluded when selected the TK heat protection contact must be connected to the terminal board The standard position is ONT Selects the type of input on the IN 1 channel when selected the input is activated for control signals in mA when selected the input is activated for control signals in Vde and ohms NTC sensor J17 Selects the type of input on the IN 2 channel J17 2 ON when selected the input is activated for control signals in mA J17 ON2 when selected the input is activated for control signals in Vdc and ohms NTC sensor WARNING e Check the position of jumpers Jn during commissioning If the rgf300regulator work mode is altered MASTER SLAVE refer to fig s 19 20 21 22 and 23 which give the standard work configurations of the jumpers e The regulator is already set
45. or Pella pum Em DN Cc General Purpose pa fra sE D P2 IEEE P3 mp fig 13 RGF 300 21 53 2 2 4 Remote connection for a current mA or voltage Vdc control signal Connection of an external control unit for SLAVE M V If regulator control from an external unit is required choose one of the following versions SLAVE M when the external control unit uses a current control signal 0 20 mA or SLAVE V when the external control unit uses a voltage control signal 0 10 Vdc This configuration allows a grid of several regulators to be controlled via a single regulation control signal in either mA or Vdc even if the regulators are a mixture of single phase and three phase It is therefore possible to control totally and automatically several ventilation units and if necessary to release one or more regulators from automatic regulation that using a local manual control signal only with 0 10 Vde control are regulated to the requested voltage The number of inputs available for differentiated control is 2 with priority going to the greater value See fig 14 for the layout of the connections SLAVE M MODE SLAVE V MODE e MANUAL SPEED MANUALE CONTROL 0 10Vdc AUTOMATIC CONTROL 0 10Vdc RGF 300 22 53 fig 14 RGF 300 23 53 2 2 5 Connection of the rof MULTIDRIVER control In this configuration the rgf300 regulator is able to guide other single or three phase rgf regulators
46. output available on the MB terminal board for which the electrical connection is made with 0 POTENTIAL signal cables Also described is the operation of the RL1 ALARM relay and its use based on jumper J14 Trailing cable with rated cross section 1 5 sq mm 22 14 AWG Cu 2 3 1 Operating selection The operating selection is obtained by activating the 1 3 2 3 4 5 and 6 7 terminals on the MB terminal board Fig 16 shows an example of connection using switches and safety devices In particular 1 indicates a normally open NO switch for commutation from AUTOMATIC to MANUAL operation S2 indicates a NO contact for activation inhibition of operation remote ON OFF 3 represents a NO contact to activate commutation from Set point 1 to Set point 2 SP1 SP2 N B this control is only operative if the RGFPB10640 optional card is present on the regulator TK indicates a normally closed NC safety device e g a HEAT PROTECTION positioned on the motor which would halt operation if were open only if J15 0N2 RL1 ON y GENERAL ALARM OFF PROTECTION o TK gt ON o ation REMOTE f OFF ioa CONTACT Po OFF TE ation CONTACT OFF Set point 1 RL1 ON wv GENERAL ALARM ON PROTECTION y TK gt OFF ES REMOTE ON EE CONTACT gt ON Regulation CONTACT E ON Ema RGF 300 25 53 S1 AUT MAN
47. p mode Led is on terminal board MB Table 7 RGF 300 50 53 8 0 LIABILITY AND RESIDUAL RISKS Eliwell amp Controlli s r l shall not be liable for any damages deriving from installation use other than that prescribed and in particular that which does not comply with safety standards anticipated by regulations and or those given herein use on boards which do not guarantee adequate protection against electric shock water or dust under the conditions of assembly applied use on boards which allow access to dangerous parts without the use of tools tampering with and or alteration of the products installation use on boards not complying with the standards and provisions of current legislation 9 0 DISCLAIMER This manual and its contents remain the sole property of Eliwell amp Controlli s r l and shall not be reproduced or distributed without authorization Although great care has been exercised in the preparation of this document Eliwell amp Controlli s r l its employees or its vendors cannot accept any liability whatsoever connected with its use Eliwell amp Controlli s r l reserves the right to make any changes or improvements without prior notice RGF 300 51 53 TECHNICAL ASSISTANCE SHEET All rgf equipment is guaranteed for 36 months from the date of testing The guarantee is rendered invalid under these circumstance evidence of tampering with the mechanics or electrics i
48. rimmer Centesimal Switch 4 20 mA pressure transducers o M 9 0 1 9 0 1 m M y START O O gt START position EN PIT di position Setting 0 15 0 25 0 30 o Set 0 15 0 25 0 30 Trimmer A VO bar bar bar N Trim bar bar bar 0 ui ml 4 0 4 0 00 0 00 0 00 00 m m m 04 0 37 0 62 0 75 m 5 0 5 0 93 01 56 01 87 06 WK Rej 6 0 6 1 87 03 12 03 75 12 E 7 0 7 2 81 04 68 05 62 18 8 0 8 3 75 06 25 07 50 25 9 0 9 4 69 07 81 09 37 31 10 1 0 5 63 09 37 11 25 37 0 M 1 11 65 1094 1312 44 m M UU c 12 12 7 50 12 50 15 00 50 1 y c 2 4 1 94 328 3 93 13 1 3 8 44 14 06 16 87 56 E c 14 1 4 9 38 15 63 18 75 62 15 1 5 10 31 17 19 20 62 68 16 1 6 11 25 18 75 22 50 74 0 M 17 1 7 12 19 20 31 24 37 80 m N 18 1 8 13 13 21 88 26 25 87 m M X j 19 1 9 14 07 23 44 28 12 93 a C M 20 2 0 15 00 25 00 30 00 99 C M 40 3 74 624 7 50 Tab 4 Column V gives the voltage values legible with a multimeter 20Vdc scale limit on the IN Gnd terminals of the analogue inputs corresponding to the mA control signal generated by the 4 20mA transducer in regulation Fig 11 shows the connection of two pressure transducers plus the type of operation standard and the operating regulation controls GND 10 PRESSURE TRANSDUCER CONTROLS PANNEL WARNING out 9 jm Accuracy EN EEN EER do not invert the transducer
49. rol section upper and power section lower soft start Proportional Band Set Point max output min output 0 Ka i Set H P mode SW1 SW2 SW3 SW4 L sp1 lL sp2 LP a RGFPB10640 un Cer ui sta OPTIONAL ug MANUAL nef mb n7 8 J15 db MA 2222092000 SE 2000000000 MB 237 3283 8 eg E e hugo fig 4 The control card contains the following regulation connection and signalling components e trimmers centesimal switch e relay e Leds AC LINE ALARM T K ALARM RL1 ON MANUAL e jumpers e flat cable e CN2 es Inputs output signals terminal boards Marked Pn used to set working parameters Marked SW used for the simply Set Point parameter with 100 working points on the transducer skale only with PB 1064 option Marked RL1 Relay with commutation contact for external signalling of correct operation or stop see selection jumper J14 Marked Din RED Led DLI to signal regulator stop fault RED Led DL2 to signal external heat protection T K GREEN Led DL3 to signal commutation relay RL in the N O position YELLOW Led DLA to signal HEAT PUMP mode Marked Jn used to change preset operational modes Marked FL The flat allows connection to the control and power cards Check the flat is securely fixed during maintenance or commission
50. ses with the decrease in input signal Selection for REVERSE operation with J3 ON1 If J 9 is ON the voltage supplied to the fans increases with the decrease in input signal Selection for DIRECT operation with J3 ON2 If J 9 is ON the voltage supplied to the fans increases with the increase in input signal The selection of one excludes the other In the versions with NTC sensor the operation of J8 and J9 with J3 ON1 ON2 is inverted Selects the MASTER or SLAVE operating mode selects SLA VE mode for the rgf300 selects MASTER mode for the rgf300 Selects the input signal priority selects the LESSER value selects the GREATER value e n the version with NTC sensor selecting JI1 ONI is the equivalent of selecting the sensor with the greater C value Selects the type of input for use of the portable unit displays the voltage signal in V 0 10 Vdc displays the current signal in mA 0 20 and 4 20 mA e Jn the version with NTC sensor selecting JI2 ONI is equivalent to automatic setting of the work field of the sensor X 10 to 60 C and Y 20 to 20 C RGF 300 29 53 Selects the RESET operating mode of the TK contact terminal board MB 6 7 when selected if the TK protection intervenes the regulator must be switched off and on again to reset the system after the cause has been eliminated MANUAL RESET when selected if the TK protection intervenes the system restarts automatically after the c
51. signe SP pi SP Temp rature solwert Temperatur SELPRO code OCANTINT408051T0 MANUAL eat Pump ALIMENTAZIONE SUPPLY ALIMENTATION EINSPEISUNG CONTENTS of rgf300 regulator 1 Control Trimmer for work parameters regulation 2 Double 10 positions rotary switch for Set point optional 3 Reference table for Set point rotary centesimal switch 4 Lexan internal panel for protection against direct contact 5 Terminal block for analog inputs output signals 6 Control card upper 7 Power card lower 8 Terminal block for load connection U V W 9 Terminal block for PE connection 10 Terminal block for threephase power supply R S T 11 SURGE ARRESTER circuit PE faston connection 12 SURGE ARRESTER circuit like EN 61000 4 5 13 CN2 connector for HELPI display unit 14 Terminal block ON OFF auxilary inputs output signals 15 Control Trimmer for Manual mode heat pump regulation 16 Status LED 17 Characteristic with function parameters 18 Cover screws 19 Macrolon cover of the case 20 GEWISS GW Plast 120 C case 21 Black anodized heat sink 22 Screws hole for wall installation RGF 300 7 53 11 DESCRIPTION The rgf300 series three phase cutting regulators comprises two electronic cards on a vetronite support mounted inside the GEWISS IP55 GW Plast 120 C case The two cards represent the cont
52. tage value 3 bring the P5 trimmer to minimum value m the output voltage to the load will have the P4 value as MAX 4 2 MIN OUTPUT regulation P5 trimmer PHASE 1 0 20 409 Vac MI Im P4 T m A P5 20 Min output PS NT setting fig 30 P5 Allows manual regulation of the minimum output voltage from 0 to 100 MIN OUTPUT During the calibration starting phase it is used to check the regulator for correct cutting regulators and the fans for correct rotation It is also used as reference for CUT OFF calibration P6 and calibration of the max output voltage P4 m 0 M 100 Regulation of trimmer PS supplies the fan with a constant minimum voltage when the automatic control is not working or the control input is disconnected Rotate P5 anticlockwise starting from position m until the desired minimum voltage is reached RGF 300 36 53 4 3 CUT OFF regulation P6 trimmer PHASE 1 0 20 300 CUT OFF setting fig 31 Adjusts the minimum voltage being supplied to the fan during automatic operation the fan will not be supplied with voltage lower than the predetermined value this avoids the supply of minimum voltage which would not be sufficient to provide a starting torque for the fan rotation In order to adjust the CUT OFF correctly proceed as follows 1 turn the P5 trimmer manual speed control starting from position m until the desired minimum rotation voltage is obtained
53. ted by the external controller without needing further calibration In the case where you wish to change from MASTER to SLAVE configuration and therefore reprogram the type of regulator control you should check the layout of the configuration jumpers shown and adjust the value of P2 which determines 100 of the fan control QUESTION ANSWER HOW TO PROCEED What should you do to change from First check the jumper layout fig Generate the maximum control the MASTER to SLAVE 19 gt 21 for M amp fig 20 gt 22 for value 20mA or 10Vdc and configuration V starting from position m turn P2 only from MASTER M and V to Then calibrate the scale limit value clockwise until 400 VAC can be SLAVE M for 0 20mA 100 of the supply to the fan readon the output terminals SLAVE V for 0 10 Vdc when the control value is at 10Vde or 20mA e Note for versions X and Y with NTC sensor no changes can be made in regard to configuration from NTC to mA or Vdc control temperature scale from version X to version Y and viceversa In this case too all calibration operations described can be easily carried out using the HELPI portable work parameter display module that allows the operator to see and set values with the calibration trimmers even if the rgf300 is being supplied on the workbench RGF 300 49 53 7 0 TROUBLE SHOOTING Some of the problems which may occur during or after unit commissioning are listed belo
54. the SLAVE configuration J2 ON2 Selects the operation of the regulator at the Set point Set point P3 corresponds to the minimum control value of the fan Il Set point P3 corresponds to the maximum control value of the fan The standard position is ON2 RGF 300 28 53 Selects the operating mode of output MA 9 10 in combination with jumper J6 Selects the work field of the Proportional Band in C mA Vdc P2 scale for control input with NTC ohm sensors for C range 3 30 C P2 scale for control input with active sensors from 4 20 mA range 0 4 4 mA P2 scale for control input with active sensors from 0 10 Vdc range 0 3 3 5 Vdc Selects the type of output control signal from the rgf300 on terminal MA 9 10 0 10 V signal proportional to the power output for J4 2 10 0 V signal proportional to the power output for J4 1 Control signal with OFFSET for J4 1 Signal to indicate the shift of the input signal from the Set point for J4 1 Input signal greater or lesser for J4 1 Selects the size of the value in C of control to display on the portable unit displays control signal C with OFFSET displays control signal C without OFFSET 0 100 Selection for DIRECT operation with J3 ON1 If J 8 is ON the voltage supplied to the fans increases with the increase in input signal Selection for REVERSE operation with J3 ON2 If J 8 is ON the voltage supplied to the fans increa
55. the external protection panel is properly closed DO NOT alter or damage the identification stickers on the equipment DO NOT force the trimmers to rotate beyond their set mechanical travel Only alter the trimmers intended for regulation Under no circumstances alter the trimmers marked with the spot of red paint WARNING A A HIGH LEAKAGE CURRENT first connect to earth RGF 300 3 53 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 CONTENTS PRESENTATION EN 1 1 DESCRIPTION Suen eased aester eten Lee etheen EVI MEE ii INSTALLATION AND MACHANICAL DIMENSIONS eneen eneen ee e e sees eere 1 3 PRINCIPEE OF OPERATION i534 shee RENE a en Ee 1 3 1 OPERATING MODE td 1 3 2 APPLICATION 4 annette ili De E kk dtd 1 4 EFEGTRICMOTOBS auster AR OS fera iena 1 4 1 MAGNETOTHERMAL PROTECTION bce 1 5 RGE300 TECHNICAL DATA salgo EID Pe Ie ED ere e ex vas etes ELECTRICAL CONNECTIONS eege A ee eres ee VER e UN EPIS TR VET E andere eu VETE Ree Zeg 2 1 ELECTRICAL CONNECTIONS POWER CARD 0 ee e Ie e e eme esee seen 2 2 ELECTRICAL CONNECTIONS ANALOGUE INPUT SIGNALS eee emen 22 1 CONNECTION OF XSK PRESSURE TRANSDUCERS 20 een 2 2 2 CONNECTION OF NTC TEMPERATURE SENSORS eee e e nene 2 2 3 CONNECTION OF OTHER SENSORS AND CONTROL SIGNALS c csse 2 2 4 REMOTE CONNECTION FOE A CURRENT MA OR VOLTAGE VDC CONTROL SIGNAL 2 2 5 CONNECTION OF THE RGF MU
56. through the MA 9 OUT and MA 10 GND terminals The control output controlled by jumper J6 allows a signal to be sent to several SLAVE M or V units The signal takes account of the work settings on the main rgf300 Using a single control sensor it is therefore possible to control several single or three phase regulation units that act both simultaneously and proportionally starting from the transmitted regulation control signals Each unit can be used singly with other work limits MIN and MAX OUTPUT The electrical connection and controls available are shown in fig 15 MULTI DRIVER OUTPUT CONTROLS PANNEL VA REGULATION REGULATION IN1 GND IN1 GND 23 se IN1 IN2 NTC NTC jJ NTC L NTC fig 15 Connection of the rgf MEI expansion module is also shown in fig 15 With this module it is also possible to increase the number of sensors max 16 which either use current 0 20mA voltage 0 10Vdc or kohm NTC sensor that can be connected to the regulator Four sensors can be connected to this module the control signal automatically selected is the one with the greatest value and as this module is supplied separately For more information consult the user manual for regulator rgf MEI RGF 300 24 53 2 3 ELECTRICAL CONNECTIONS ON OFF INPUTS OUTPUT This paragraph describes the connections to the auxiliary S1 S2 3 and TK ON OFF inputs
57. tric protection placed between the regulator supply and the earth to protect the device from transitory mains excess voltage ATTENTION disconnect the PE faston contact from the earth reference in the ELECTRIC STRENGTH TEST The rgf300 regulators allows connection of three phase loads without requiring connection of the NEUTRAL This simplifies installation and facilitates the star or delta load configuration It is advisable to provide a by pass switch to allow load activation even when the cutting regulators is faulty emergency by pass When connecting the by pass the following precautions should be taken into consideration i connection made through the by pass switch must keep phase correspondence unaltered so as to avoid destructive shortcircuits and maintain the motor s sense of rotation ii before supplying the load with maximum voltage supply to the regulator should be disconnected therefore e it is advisable to use a three position manual switch as a commutation device e if automatic commutation is carried out by means of contactors make sure there is some delay at least 2 seconds between regulator disconnection and load activation operations Electrical connection of the supply and load for rgf300 regulators is shown in fig 9 PE faston UVW PE RST BY PASS PE ALIMENTAZIONE L1 POWER SUPPLY Lo ALIMENTATION 3 EINSPEISUNG VENTILATORI FANS VENTILATEURES VENTILATOREN RGF 300 16 53
58. trimmer or centesimal switch a Proportional band P2 trimmer e operation as POWER UNIT also called SLAVE In this case the rgf is set up to be controlled by an external Master regulator which decides the phase cutting of the voltage by sending the control signal to the slave The incoming control signal to the rgf300 regulators can be For a MASTER mA Vdc Active sensors with control in current mA or voltage Vdc For a MASTER ohm NTC sensors with control in C ohm 10 kohm 25 C gt ForaSLAVE mA Vdc Control signals in current mA or voltage Vdc 1 3 2 Application It is generally possible to connect one or two sensors control signals to all MASTER and SLAVE models with two 2 sensors signals connected the regulator automatically selects the greater or lesser signal In the case of active sensors this can be directly powered 24Vdc max 40 mA The principal applications are for measuring pressure bar temperature C humidity 7e RH delivery cu m h superpressure mm static pressure Pa supertemperature destratification etc in plants and machines o IN 100 SLAVE RGF 300 12 53 14 ELECTRIC MOTORS Three phase asynchronous motors can be connected to the rgf300 regulator in applications where the torque motor speed characteristic is quadratic This mainly allows phase cutting application with axial and centrifugal fans used for control purposes The correct
59. up correctly If desired for 4 20 mA three choices inputs choose the scale in bar corresponding to the pressure transducer used There are Transducers with range 0 15 bar press key 1 0 15 bar Transducers with range 0 25 bar press key 2 0 25 bar Transducers with range 0 30 bar press key 3 0 30 bar Set point Input 1 Input 2 Cut Off e Cutting percentage Transducer power supply Proportional Band calibration Press key 5 SP the SP Led of the selected input and the Led of the unit of measurement mA bar C V corresponding to the regulator input set up will light up The current value of the Set point will be displayed To alter it adjust the P3 adjustment trimmer Press key 6 IN 1 the In 1 Led of transducer input 1 and the Led of the unit of measurement mA bar C V corresponding to the regulator input set up will light up The current value of the N 1 transducer input will be displayed Press key 7 IN 2 the In 2 Led of transducer input 2 and the Led of the unit of measurement mA bar C V corresponding to the regulator input set up will light up The current value of the N 2 transducer input will be displayed N B Only for regulators with PB1018 4 control card Press key 8 Cut Off the C Led of the selected input and the Led of the unit of measurement o will light up To check the regulator for correct cutting and the fans for correct rotation ad
60. versions the regulation refers to the current control signal mA for V versions the regulation refers to the voltage control signal Vdc for X and Y versions the trimmer regulation refers directly to the temperature in C It is therefore necessary to change the range of the sensor being used to work out the corresponding measured quantity control signal Transducer Transducer SP1 2 NTC NTC pen 4 10 60 C 20 20 C fone a SP PB SP PB Oo S SP 1 SP 2 L P P Transducer Transducer Transducer 0 30 bar 0 25 bar 0 15 bar 4 20 mA 4 20 mA 4 20 mA B SP PB SP PB bar bar bar bar bar bar Su a y Kl DOPPIO punto di lavoro DUAL set point DOUBLE point de consigne ZWEIT solwert RGF 300 41 53 4 6 SOFT START regulation P1 trimmer P1 Adjusts the rapidity with which the fan speed varies slow start and slow stop in practice it makes the system slow or Tast depending on the change in the automatic control Soft Start SE In the M position trimmer completely turned clockwise the variation speed is slowed to the maximum system slow to vary In the m position minimum speed variation is almost instantaneous fast system The cutting regulators is provided with a minimum Soft Start time equal to circa 2 seconds P1 m to avoid possible hunting that might be caused by an excessively slow system 10 2 Cg M i M m y WE LA SOFT START
61. w with their possible solutions Unit supplied but load does not activate C1 Absence of one or two phases Led S1 Check supply connections and input AC LINE on phases C2 The load is not connected S2 Check there are no electrical interruptions between regulator and load C3 No control signal S3 Check sensors for correct operation return voltage and connections to terminal board MA S4 Check P3 trimmer calibration and C4 Incorrect operating mode direct positions of jumpers J8 J9 J2 J3 reverse and Set points not adequate J10 J11 J12 for signal control S5 Check P4 trimmer calibration C5 Maximum voltage supplied to lower load at minimum starting voltage S6 Check STOPS 4 5 control contact C6 Remote STOP ON OFF MB 4 on MB terminal board 5 contacts closed Tension can be read on outlet terminal Cl Load not connected to regulator S1 Check electromagnetic switch or heads to load circa 370 VAC but terminals motor regulator connection sectioner motor does not start S2 Check the motor heat protection Cutting regulators supplies voltage to C1 Minimum voltage supplied to load S1 Check P6 trimmer calibration the load but load does not activate is lower than needed for starting Protection fuses burn out C1 Regulator undersized for load used S1 Check powers involved as well as starting and operating currents C2 Interference on supply lines S2 Check the supply line an
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