DRM 3~ - Selpro
Contents
1. M M 10 1 7 Electric MOtOrS 1insesesisasev ceo save veco vas cvk ka sas ev va va ve v cusa vuva c avaveva V evav vu v ava v av eV ava vuv eR a vav val eau du Rav EN Ev EE auina d cvx V EVE E vYV VUE E IVEE CVV E VV E Ev LEVE EvY V VEL LIVE TEE Pew VUE 11 1 8 MagnetotHermAL utis vito NN 11 2 0 ELECTRICAL CONNEC LIONS E 12 2 1 Connection OF power supply and eege 12 2 2 Available options for Multi FANs TE ln CN 13 2 3 Control signals amp auxiliary contacts GOMES 14 2 4 I WIENER EN ER rj 14 2 5 Remote controls signals 0 10Vdc 4 20mA PWM M3 1e eere rere een n nene n nnn nnn hahahaha RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR RR Ra Rana aaa 15 2 6 Auxiliary DIEA IICI EQUIS icu ssis 16 2 7 REI Alarm relay terminal block M4 iiuuseia sas rni pv rim ern ov ni POOR ENEE 16 3 0 ACAR WA vro P 17 3 1 Alarm DOLEO Po cC ses sesis 17 4 0 FUNCTION DIAGRAM t 18 4 1 SLAVE power unit Function diagrams 52e rtr rena eta ace Ede d Y YER R PERRA Y EY EXC E REA EN RYE avanti adenine IE RIT IHR da dE ada 18 5 0 LiB BILLET UO sauiisiecbsvasnsacavesn2. ZC RGF PB1035 20000 with 100 points 30 knob ZC RGF PB1040 20000 with 100 points 30 knob www selproweb com P S e O e sistemi elettronici professionali 5 2 SPR Pressure Transducer for 4 20 mA amp 0 5 V Description Trasducer Control signal 0 5 4 5 V Power supply 5 V 0 25V Range bar 0 30 45 Linearity 0 5 FS max Temperature 25 80 C Electrical connection 3 wires Connection Male or Female Mechanical connection 7 16 20 UNF Protection IP 65 5 3 STE Temperature probe NTC 10 kohm 25 C Sensor NTC probe with resinated terminal Connection Silicon light blue 3 0 mt cable Terminal INOX AISI 304 6 x 40 mm Work range C 50 T 110 5 3 1 STP housing for NTC Housing Protection box for NTC probe Screw 1 4 GAS Component INOX AISI 304 da 8 5 x 75 mm 5 4 RGF MEI 4 UNIVERSAL input Expansion Module Electronic All Round unit for the connection of 4 additional control and regulation inputs for all applications with Control inputs 4 20mA NTC 10k 0 5Vdc 0 10Vdc 0 20mA Regulation output 0 10 Vdc 0 20 mA Selectable MASTER SLAV E function for NTC Temperature Pressure Remote signals etc Automatic selection between the MAX MIN values ENS OUTPUT connection to other MEI units max 3 K LEDs for the visualization of active inputs E Power supply protection with fuse Power supply surge protection INPUT total protection against short
3. Industry environment ATTENTION In presence of a protection with DIFFERENTIAL system use switches with leakage current to ground gt 60 mA Available case IP55 IP 20 PO GW Plast 120 C max temperature 120 C and aluminium Case Visualisation Leds f ES E Mains monitoring Protections 20 T 50 from 20 C to 50 C for temperatures lt 10 C use S2 Work environment Electrical Connections Power connections 2006 42CE 2006 95CE 2004 108CE User Manual DRM300 rev 4 1 30 11 09 9 www selproweb com S O i e e sistemi elettronici professionali 1 6 Mechanical Dimensions Nominal Current RMS Ampere DRM312 DRM318 DRM320 User Manual DRM300 rev 4 1 30 11 09 DIMENSIONS mm Lc E r uerger so 35 3 25 eomm Del 210 29 25 60mm ioo 15 255 32 Lues 10 1 260 32 60mm Taso 15 255 38 Lite o 19 173 255s 45 L8 1p 28 43 G mm 81 r3 r3 r3 t3 SISON gt Ui not t3 r32 r3 i9 ele Ga p Fe d 1 db N QO Un nN e Ge 162 260 45 6 0mm EU NE RE NEN EE 7 141 173 320 73 60mm 235 204 173 320 7 5 60mm N tt ma wiele nN LA kk Un Uni bX LD DIE Un Un vS Uu vS Un Wi Wi ININ N Gi Ui Ui Oo oO Ge e u uuuu Uu 10 www selproweb com e S e EA j Q O a sistemi elettronici prof
4. the regulator selects automatically the signal with the higher value User Manual DRM300 rev 4 1 30 11 09 14 www selproweb com e e sistemi et tronici professionali 2 5 Remote controls signals 0 10 Vdc 4 20 mA PWM Below are represented the connections for the remote control regulations 0 10Vdc 4 20 mA e PWM coming from remote control unit for Automatic regulation or Manual regulation with Potentiometer with DSw2 ON the controller work on Reverse mode 10 0Vdc or 20 4mA for rS selection Led BLU CODE RANGE rS 420 4 20mA T K Oe T K LX GND Q gt 2 GND gt 2 START STOP LA 3 Bc isles START STOP EA i o5 0 10 L g VR 5 10V OH Vdc too VR 540V LX mA 36 4 V 20V O i V 20V O gt Gnd Li Gnd Li zu oper Comando Comando IN1 mA Vdc 1 C o Comando Comando IN1 mA Vdc 1 C o 4 20mA 20 4 mA ge 0 10Vdc 10 0Vdc IN2 mA Vdc 2 IN2 mA Vdc 2 E ATTENTION The controller is configured to receive N 2 remote control signal 0 10Vdc or 4 20mA and N 1 PWM signal the regulator selects automatically the signal with the higher value with rS010 Vdc rS420 mA it s possible to connect directly the command for remote manual regulation on terminal M3 are available the stabilized supply Voltage for REVERSE mode input 10 0V or 20 4mA shift DSw 2 to ON position and set So at 95 of the selected scale max 9 5 Vdc or 19 mA because it s the Cut Off value Vac f
5. the system Controller Fan s is guaranteed for all PDS applications As a consequence the digital DRM300 controller is SIMPLE what concerns electrical connections and programming FLEXIBLE and ready to be used as it is already preprogrammed for all SLAVE applications COMPLIANT in conformity to the strictest standards concerning power drive systems with special attention to the EMC Directive Electromagnetic Compatibility since it refers to NON tangible protection requirements the relative Standards are only partially followed by many manufacturers of electronic power devices and they are ignored especially by final users which are the contact persons responsible for the EC certification and compliance of the System Controller Fan s Like all SELPRO products the DRM300 series has been built to the very highest quality standards using electronic components of the utmost reliability which have undergone functional tests that guarantee the use of the product for at least 60 000 hours of continuous operation without problem Thanks to the specialized software for applications on fan motors it is possible to avoid typical problems with the modulation of oscillation to reduce the mains current distortion and to limit the magnetic noise of the regulated motor by means of the Soft Power technology which manages power regulated in 0 cross mode The extended range microprocessor which performs every control function is also respons
6. 06 11 14 all 2 1Hz SCR regulator with HWF filter Vout 250Vac Tek TL Trig d M Fos 0 0005 CH2 sde Accopp 1 Limite Banda OFF TO0MH z Volt Diw ATTENUAZONE E Ten CHI Z00V CH2 200 Mme Rete AL d ow 08 15 23 v0 0010Hz User Manual DRM300 rev 4 1 30 11 09 22 www selproweb com e S O e e sistemi elettronici professionali 6 0 DRM 300 Electrical TESTS Electrical connection for the following tests A Voltage check electric strength test according to CEI EN 60204 1 The electrical equipment must support a test voltage applied for at least 1 seconds to all circuit conductors except for equipotential protection circuits and PELV Protective Extra Low Voltage circuits The test voltage must 1 be the double of the rated supply voltage of the equipment or be at least of 1000 Vdc it is recommended to choose the higher value between the two options 2 have a frequency of 50Hz and 3 be equipped with a transformer with minimum rated current of 500VA The components which cannot support these voltages must be disconnected during the test The test voltage must be applied between the points 1 and 2 as shown in figure B Insulation resistance test according to CEI EN 60204 1 The insulation resistance measured at 500 Vdc between the power and the equipotential bonding conductors must NOT be lower than 1 Mohm The test must be performed between the points 1 and 2
7. all safety measures in force Always keep the present documentation close to the control device The purchaser must previously ascertain the suitability of the product for the use it is intended for and assume all consequent risks and responsibility This product has been designed to be used only as an operational control device In the event delicate or great value products should be held within specific working limits it is recommended to install a separated control device equipped with alarm contacts The commissioning start up and operation of the present device must be performed by qualified technicians with knowledge of the technical regulations in force in compliance with all the safety standards and able to understand the indications of danger 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 DRV300 voltage regulator or the fan connected to it may cause damage to objects or people Before supplying power to the unit make sure that the regulator is correctly connected to the power supply and to earth The information provided in the present manual consent to install and control correctly the fan speed regulator DRM300 Do NOT tamper with or disassemble the regulator internal components doing so will INVALIDATE THE GUARANTEE and may cause unnecessary damage The regulator does not contain component
8. contact for the connection of the thermal motor protection RLI GENERAL alarm relay with programmable Dip Switch activation modes e Analog output 0 10Vdc used in order to control o Upto ten Slave DRIVER POWER UNITS rS with control signal 0 10Vdc Once the desired regulation mode have been selected the controller is ready to operate and control the fan speed so as to maintain the system constantly stable within the preset operating range 1 2 Operating modes Phase cutting regulation totally controlled over the three phases in order to vary the active voltage applied to the load no neutral connection required It is possible to use the device in one of the following SLAVE modes e SLAVE POWER UNIT the VAC output varies according to the Vdc mA signal received at the input INI amp IN2 or to the PWM input and increases decreases as the control signal increases The number of regulation signals sensors transducers can be increased by connecting the control unit to the Universal Input Expansion Module RGFMEI 4 which allows to connect up to 4 mA Vdc NTC sensors signals to each controller input it is always possible to select the signal with Highest Lowest value as a reference point for the regulation the controller allows the cascade connection of up to 6 RGFMEI 4 units Expansion Modules MEI 4 have been designed to be connected to diverse regulation and control devices such as inverters or PLC which accept a 0 10 V
9. 2 12 P with amp without NTF filter 90 00 80 00 70 00 60 00 50 00 9B r gf 300 R dB withNTF300 B raf 300 40 00 E dBwithNTF300 40 00 30 00 20 00 10 00 Connect only 1 or 2 MAX fans to the NTF filter The given UF value refers to the 3 condensers connected to the three phase lines 1 for each phase Do NOT use the NTF filter in absence of a connected fan by doing so the SCRs thyristor of the DRM300 regulator will be damaged WARNING MAX connection N 2 VENTILATOR EN NTF PHASE CUTTING NOISE SUPPRESSOR N ee NIN 25 25 FAN 2 FAN 1 MAX connection 0 VENTILATOREN N 2 VENTILATEUR S VENTILATOR EN O Se O CU CH v3 wW Wi MAX ti n PHASE VENTILATOR EN CONTROLLER S User Manual DRM300 rev 4 1 30 11 09 21 www selproweb com A sistemi ronici professionali 5 6 HWF300 Filter for the suppression of Harmonic Distortions IEC 61000 3 2 amp 61000 3 12 By applying the HWF300 filter between the regulator and t
10. DRM300 data plate The speeds of the motors vary at the same time variances 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 motor speeds have to be different motors with different rated speeds must be used Bear in mind that motors with very different characteristics create heterogeneous electrical situations which may show problems on start up and at low speeds because of different resistances of the stators which require different voltages on start up and at low speeds 2 2 1 Magnetothermal protection The DRM300 devices must be protected 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 magneto thermal protection with a C intervention curve having the following capacity Specialized Protection FUSE for SCR Ss 2 MM EE ESI 10 x 38 E52 E 690 V mm o Made in France To prevent the short circuits to the controllers SCR it s very important the application of the referenced fuses into the table to protect SCR Power Semiconductor of the DRM controller use Ferraz Shawmut specialized fuse for electronic power applications User Manual DRM300 rev 4 1 30 11 09 H www selproweb com e S e ELA j Q O e sistemi elettronici profession
11. H Power supply ON e Regulation O K blinking DC 50 freq 2 Hz e Regulation CosPhi ON blinking DC 50 freq 2 Hz 1 blink Over max C control card 85 C 2 blinks VAC power supply phase loss Alarm FAIL DL3 3 blinks Thermal protection open Over range signal 4 blinks e Slave 4 20mA 2mA gt 24mA e Slave 0 10Vdc gt 11 0Vdc PWR OUT DRM run VAC output on work PWM IN PWM on input M3 8 9 RL1 relay NO relay ON Predispositions RE M p Cut Off The regulation is setted at the 2596 of the VAC power supply Verify the input signal range Input command 0 10 Vdc max value under 11Vdc 4 20 mAdc gt min value 2mA and max value 24mA Alarms Remb Phase loss Power supply under range less 20 Vac supply Power supply Verify the phase loss the low VAC limit max 20 Alarm ON with Led DL4 red amp relay RL1 OFF Verify the working C with internal probe max 85 C Overvoltage protection Complying with EN 61000 4 5 Overvoltage Category II 4 KV With PTC for short circuits Controller Internal thermal protection It checks the simultaneous presence of all the three mains phases in case of lack of one phase or insufficient power supply the device is stopped and the situation is displayed by Led FAIL ON and ALARM OFF relay RLIZOFF Suitable for the installation in PDS systems Power Drive System Controller with connected fan s for Residential Commercial and Light Mains filter EMC
12. Input INI Potentiometer Supply 10Vdc 5mA INPUT 0 10 Vdc Input IN2 RLI i1i J2 3 Electrical data VAC Start Amp Motor data Electrical connection star delta phase R S Traction direct _ belt driven phase S T V Mechanics helical _ centrifugal phase TR d Operator name Company stamp User Manual DRM300 rev 4 1 30 11 09 26 www selproweb com SAY IG ici professionali Soluzioni per la regolazione dei ventilatori Fan speed control solutions Soluciones para la regulaci n de ventiladores Des solutions pour la r gulation des ventilateurs ns di CH JW e E D LR Turic ut 3 a ee o e BNITTIIIR L sungen f r die Regelung der L fter Peureug 19 perv IHDoBKH BeHTHJISTODOB SELPRO Via Padre Giovanni Piamarta 5 11 25021 Bagnolo Mella Brescia Italia tel 39 0 306821611 r a fax 39 0 30622274 www selproweb com info selproweb com Selpro reserve the right to modify the features of its products without prior notice User Manual DRM300 rev 4 1 30 11 09 27 www selproweb com
13. RLI Alarm relay with programmable function for different level of warning With the factory selection RL1 switch from NC position 1 amp 2 to NO position 1 amp 3 Different alarm levels are selectable with the DSw 4 amp 5 selection N B Aftyer the DSw selection to confirm the change press the RESET SB1 button With DSw 5 amp 6 on position ON ON the alarm relay switch from NC position only with the Power Supply OFF Available Alarm relay setting functions see the table and watch on the display DIP Switch positions DSw selection P With gt STOP TC COMNC COMNC With gt STAND BY COMNC Vj With gt ALARM COMNC COM C COM NC COM NO ALARM selection table for relay RL1 function D QW 5 amp 6 Power Supply OFF Power Supply OFF Power Supply OFF Power S under range Power S under range Power S under range E Controller K O Controller K O Controller K O RLI COM NC Phase loss ALARM m Phaseloss ode Remote STOP active Remote STOP active only with Selection for H P on work 0 H P on work 0 RLI function Power Supply OFF ON N INOS ON ON ON ON OFF OFF OFF OFF 12345678 12345678 12345678 12345678 User Manual DRM300 rev 4 1 30 11 09 16 www selproweb com S O e i e sistemi e ronici professionali 3 0 Alarm 3 1 Alarm Led DL3 The alarms are displayed also by DL3 Alarm LED according to the priority indicated in the table above the pr
14. TROMECHANICAL equipment for the ON OFF activation of fans 2 ELECTROMECHANICAL equipment for the ON OFF STAR DELTA activation of fans motors MIXED mode Later also the following modes have been discovered and used 3 ELECTRONIC equipment with STEP VOLTAGE control AUTOTRANSFORMER 4 ELECTRONIC equipment with FREQUENCY variation inverter or electronic motor 5 ELECTRONIC equipment with AC voltage PHASE CUTTING The activation of an ON OFF group of fans allows the modulation of the Air System but the result is very unstable and it never meets the real requirements of the system Only thanks to the electronic equipment it has been possible to obtain a steady balanced Air System Electronic solutions also bring many advantages Reduction of the operating noise the dBs are proportional to the fan speed with a consequent general noise decrease dB in the Air System and the possibility to set a NIGHT operation mode that allows a further reduction of power consumption and meets the requirements of low noise dB ENERGY saving thanks to the gradual absorption of power from the mains it eliminates current peaks due to a frequent ON OFF of the group of fans A Longer electrical and mechanical life of the equipment which is preserved from thermal and electrical stresses typical of an ON OFF regulation Elimination of fluid hammers caused by pressure surge due to the ON OFF modulation of the heat exchanger Constant operating parameters
15. This series is manufactured for the employment into the industrial environments and responds the following communitarian directives e Machine Directive 2006 42 EC and following amendments Low Voltage Directive LVD 2006 95 EC e EMC Directive 2004 108 EC ELECTRONIC FANS REGULATION FULL ENVIRONMENTAL RESPECT Thanks to the electronic solutions used the device responds totally to the emission limits required from the European Directives for Residential Commercial and Light Industrial environments EMC and PDS applications and can therefore be installed without particular precautions ex shielded cables The equipment does NOT contain filters for the suppression of harmonic distortions N It is not allowed to commission our equipment when installed in machines that do not comply with the legislation in force User Manual DRM300 rev 4 1 30 11 09 2 www selproweb com sistemi elettronici professionali Contents 1 0 Lid 4 Us 3 DEVELOP 4 1 1 Introduction e M RH 4 1 2 Operating MODES isi D E pr DII duin EE d duin dd dd n dS 5 1 3 General functions DRM 300 E e 6 1 4 EC Directives e Technical standard E 7 1 5 DRM300 Technical et 8 1 6 leeft Dim Sa DOCTRINA R
16. ali 2 0 Electrical connection 2 1 Connection of Power Supply and Load Connect the power supply and the load as shown in the figure below being careful to employ conductors with a cross section suitable to the connected load The power cables power supply and load must be installed separately from the control cables analog inputs and ON OFF input outputs keeping the maximum possible distance between the power and signal conductors Do not place power cables with signal cables in the same raceway In case the cables cross one another ensure it is at 90 N SURGE ARRESTER electric protection placed between the regulator supply and the earth meant to protect the device from transient overvoltage WARNING disconnect the faston contact from the PE earth reference before making the ELECTRIC STRENGTH TEST N WARNING In presence of a protection with DIFFERENTIAL SYSTEM use switches with leakage current to earth gt 60 mA The DRM300 regulators allow the connection of three phase loads without requiring the connection of the neutral This simplifies installation and facilitates the STAR or DELTA load configuration It is advisable to provide a Bypass Switch to allow the load activation even when the cutting regulator is faulty emergency by pass When connecting the Bypass the following precautions should be taken into consideration Y The connection through the Bypass Switch must keep the phase correspondence unalte
17. as shown in figure VENTILATORE ALIMENTAZIONE FAN SUPPLY VENTILATEUR ALIMENTATION VENTILATOR EINSPEISUNG User Manual DRM300 rev 4 1 30 11 09 23 www selproweb com e S e ELA Q O e sistemi elettronici professionali Identification of the sources of OVERVOLTAGE hazards potenziale potenziale Y i elevato basso linea alimentazione sovratensione A MK PY cavi trasmissione re dati 4 User Manual DRM300 rev 4 1 30 11 09 DIRECT ATMOSPHERIC DISCHARGE When a lightning strikes directly a building equipped with a common protection system the components connected to the system supplementary system reach a significant electric potential This event determines such potential differences between the components connected to earth and the active components that the insulation protection is not strong enough to stand it As a result the discharge causes irreparable damages to the electric equipment INDIRECT ATMOSPHERIC DISCHARGE When a lightning strikes directly an electricity supplier even if remarkably distant from the building or when it reaches a mains supply cable or the earthing system by flowing through the roots of a tree the generate overvoltage also in this case may cause severe damages to the electric equipment CLOUD TO CLOUD DISCHARGE When the discharge does not take place between a cloud and the earth s surface but within two different clouds intercloud or cloud to cloud
18. ated Allarms With ONE or more activated Allarms ER With remote contact STOP ON S2 Stop Start With ONE or more activated Allarms OFF ON RL1 OFF With remote contact STOP ON S2 Stop Start With VAC output 0 Fans OFF N RL1 L1 OFF With Power Supply OFF Activation of the Cos Phi setting modification only factory procedure Normal function factory Cos Phi Available custom function on request OFF N B After the Dip Swicht DSw selection press RESET SB1 the 1 2 3 controller restart with the new selected function With DSw 5 amp 6 ON ON the alarm relay change to COM NC DSw orr sth 12345678 SB1 2345678 ESET position only with the OFF of the Power Supply 2 4 CONTROL SIGNALS amp AUXILIARY CONTACTS Connection The figure below shows the label placed inside the regulator which reproduces the electrical connections of control sensors signals and of the available auxiliary contacts e PWM digital signal from 3V to 30V insulated and not polarized M 3 PWM 9 9 TK Connection of the thermal contact NC 8 Gnd Ground Referenced GND Start Stop NO NC contact Sw4 selection for regulation Stop Start E 6 OUT 0 10V 0 10Vdc 20mA output for SLAVE extra power unit START STOP M E pur o 10v Al VQ0V 20V 20 max 40mA not stabilized protected from short circuit VR 10V Ole V 20V i Gnd LX IN1 mA Vdc Eis IN2 mA Vdc gt with two 2 signals working
19. circuit Protection filters against input signal surge User Manual DRM300 rev 4 1 30 11 09 20 www selproweb com P e S E Q sistemi elettronici professionali 5 5 Noise Extra dB Suppression Filter for Phase Cutting Regulators By applying the NTF filter between the regulator and the fan motor it is possible to reduce the extra dB noise generated by the electronic regulation The NTF noise filter can be used only with fans controlled by SCR phase cutting AC voltage controllers The noise filter consists of a choke and condensers one for each phase for reactive current compensation The choke is directly connected to the controller output The filter MUST NOT be OPERATED nor SUPPLIED in absence of a connected fan A Protection with IP 55 Box Power Supply 3 230 420 500 V ac 10 50 60 Hz standard The size of the condensers combined with the filter MAX 2 condensers per filter depends on the power Ampere of the connected fans PHASE CUTTING NOISE SUPPRESSOR The following tables show the typical noise transfer functions extra dB value for the RGF300 Three phase cutting regulator with and without NTF filter The values refer to the regulation with NTF noise filter in red and without NTF noise filter in blue FE080 SDA 6N 2NV 6 6 P FE080 NDA 6K 2NV 12 12 P RGF300 Regulation noise verification for FE080 6 6 P with amp without NTF filter RGF300 Regulation noise verification for FE080 1
20. ctive EU 2002 96 EC User Manual DRM300 rev 4 1 30 11 09 3 www selproweb com e S SS O e sistemi elettronici professionali 1 0 Presentation 1 1 Introduction Fans represent the essential part of Air Handling equipments and systems and the development of machinery for the variation of speed and consequently of air flow rate in the different types of systems has emphasized their importance The variation of volumetric flow rate in a system may be required according to several needs NOISE operation proportional to appropriate speed values according to environmental conditions CONVENIENCE the energy consumption is always in line with the actual ventilation needs FUNCTIONALITY elimination of heavy and bulky electromechanical components and easier electrical assembly CONFORMITY in full respect for European directives about electrical power drive systems MECHANICAL WEAR mechanical stress in structures due to an ON OFF operation ELECTRICAL WEAR stress of the electromechanical components and of the connected devices In order to fulfill such requirements it is necessary to use regulation equipment able to adjust the rotational speed of fans so as to make the system more suitable for the variations of contextual operating conditions There are several types of equipment that allow to control and regulate fans driven by asynchronous motors Since a long time the following solutions have been used ELEC
21. dc or 0 20mA control signal WARNING Before installing the DRM300 regulator you are invited to read this manual which describes the necessary procedures for correct installation and commissioning of the controller DRM300 User Manual DRM300 rev 4 1 30 11 09 5 www selproweb com Le S l O SS e sistemi elettronici professionali 1 3 General functions DRM 300 series The DRM300 series designed amp created by the SELPRO Research amp Development Department has been specifically developed to offer a digital UNIVERSAL controller for the regulation of three phase asynchronous motors with dedicated software for applications on Air cooled Heat Exchangers used in Air Conditioning and Refrigeration Systems Such kind of digital regulation optimizes the application specific performance of ventilation control it is based on a simple and yet innovative technology one hundred percent ITALIAN as it has been conceived and developed in SELPRO labs and it fully satisfies the following requirements o SIMPLICITY USER FRIENDLY NO need of special cables for the installation NO need of trained operators for the startup procedure FUNCTIONALITY PLUG amp PLAY all regulation parameters are already default preset COMPLETENESS ALL in ONE all regulation modes with mA Vdc PWM signals are already default preset SAFETY ALL ROUND PROTECTION the software supervises the operation of regulator and connected fans CONFORMITY COMPLIANCE
22. discharge the generated overvoltage may even indirectly cause severe damages to the electric equipment OVERVOLTAGES DUE TO ON OFF SWITCHING Also the operation of power drives in electricity supply networks and in low voltage networks may cause overvoltage Overvoltage may arise for instance by switching off high voltage lines by no load operation or by switching on and off transformers condensers heavy inductive loads etc 24 www selproweb com m S O e A e sistemi elettronici professionali Connecting Conductors and their Cross Section For the connection of an overvoltage protector to the mains network L1 L2 L3 N the cross section of the conductor must be of the same size as the cross section of the existing conductor Otherwise in case the cable has a smaller rated section it 1s necessary to provide a surge protection by means of a 100A fuse gL type For the connection of the overvoltage protector to the ground the rated cross section of the conductor must measure the 50 of the main equipotential bonding conductor cross section in any case it doesn t have to be smaller than 6 mm nor larger than 25 mm The connector between overvoltage protector and earth must be installed so as to be as shorter as possible 2 10m 25m J The figure below shows the circuit diagram of a three phase surge filter for the connection of a controller DRM9300 to the supply line The filter has a small
23. esence of an alarm with higher priority prevents from displaying alarms with lower priority 1 blink Over C Control card gt 85 C DLI en PWR 2 blinks Phase loss on power supply DLZ en CPU RUN 3 blinks T K contact OPEN DL3 ini FAIL KO 4blinks Input signal IN over range DLA e PWR OUT DLS a PWM In this cases LED blinking intermittently and RL1 Without alarm conditions LED DL3 FAIL is OFF DL6 ON DL6 OFF 1 3 OFF 2 3 ON 1 3 ON 2 3 OFF The alarms are not memorized if the alarm disappear the controller come back to the normal operation of regulation User Manual DRM300 rev 4 1 30 11 09 17 www selproweb com e S O e e sistemi elettronici professionali 4 0 Function diagrams 4 1 SLAVE Power Unit Function Diagrams Control Proportional Remote input mA Vdc PWM Characteristic Direct DSw2 OFF Analog Output 0 10Vdc Vac Ouput 0 10V e N 100 96 10 0V hi 90V Jh 50V JL o Lo E 1 0 V 0 0 V in 4 mA 19 2 mA 20 mA mA Vdc PWM 0Vdc So 9 6 Vdc 10 Vdc 0 PWM 95 100 PWM in Signal value at the selected input Vdc mA PWM Jh Upper limit of the AC voltage jump zone JL Lower limit of the AC voltage jump zone So Input signal value forcing the output down to 0 _ e Factory predisposition 10 Hysteresis of the input signal value So hi Maximum RPM limit Lo Minimum RPM limit User Manual DRM300 rev 4 1 30 11 09 18 ww
24. essionali 1 7 Electric motors The regulator DRM300 allows the connection of three phase asynchronous motors in applications whose motor torque speed characteristic IS quadratic Thus it is especially suitable with axial fans while centrifugal fans can be connected only if purposely specialized for the phase cutting regulation The correct electrical connection and the supply voltage are reported on the motor data plate the direction of rotation of the motor can be changed by swapping two of the three supply cables It is important to keep the power supply cable as short as possible so as to minimize interferences and leakage 10 15 mt otherwise it is recommended to install an auxiliary three phase filter on the controller s output The figure below shows the DELTA High speed amp STAR Low speed connections respectively DELTA for High speed connection STAR for Low speed connection WE SS u1 1 Li i Li 1 Li LI LI LI U2 V2 2 LI LI LI Ss SE a d AM H Wi R T For the connection of the cables for supply amp load watch at the table Max Ampere In If the total ampere are equal to the nominal current use the 6A 10A upper size cable For the right connection see the figure 10A 16 wn w MER geg mp c a wm 25A OK NO NO The DRM300 regulator can control several motors connected in parallel assuming that the absorption of their total current does not exceed the rated current indicated on the
25. he supply line the harmonic distortions generated by the electronic regulation with SCR can be reduced by 98 WAVE FILTER plianc ompliance 1EC61000 3 2 compliance 1EC61000 3 12 e e z GG X T The filter is directly connected to the Vac input of the controller and must be properly installed in order to ensure the declared performance Protection degree IP 20 standard IP 55 on request Power supply t 3 400Vac 10 50 Hz f KH E 3 460Vac 10 60 Hz The size of the filter combined with the controller depends on the power Ampere of the connected fans The following tables show the transfer functions relating to the electric noises generated by the AC voltage regulation of the fan motor with and without HWF300 filter On working the regulator DRM300 can create a max of 30 of the noises produced by the inverter the report is 1 to 3 Moreover the VAC controller don t produce noises at 0 amp 100 of the VAC output The indicated working point refers to the peak noise level caused by the phase cutting regulators It s also available the ACTIVE filter for all the applications until 90A SCR regulator without HWF filter Vout 250Vac da0 lak JL mg I Pos AHUUms LHI prox s Lm E Accopp Urmes 395 133 Ge 1 Limite Banda 1OOMH z Volt Ov Attenuazione sonda zt UE V i CH1 2 00 CH2 2 00 M S 00rns Rete ac i MES ee es a f 4 Giu
26. ible for monitoring the safety conditions of the regulator by checking its proper operation the lack of one phase toward the power supply the connection of sensors and all other possible electrical situations that could damage the connected air cooled system or the controller and by simultaneously informing the operator about the regulation status and operating conditions through the LEDs The controllers are preprogrammed for operation with SLAVE 3 modes configurations The controller in SLAVE mode operates as a power unit driven by a remote controller through a mA or Vde or PWM control signals The DRM300 series offers 5 standard rated current values eo A 12A 18 A 20 A 28 A with standard power supply 400Vac 20 10 50 60Hz the controller recognizes and manages automatically the frequency variation further voltage 230 Vac 500 Vac and current values are available on request Electronic regulations of motors phase cutting regulation of AC voltage SCR and TRIAC power drive systems they all have collateral effects which require the use of additional technical protection measures especially with applications in residential environments or technological plants the acoustic noise generated by the fan because of the magnetization of the motor itself arises discontinuously within the main speed ranges of the fan speed regulation and can be only partially reduced by means of expensive and bulky acoustic screens installed around the
27. into operation carefully according to the rules in force and following the information provided by the present manual Sch The device must be disposed of separately according to the local authority advice PRODUCT end of life EU 2002 96 EC User Manual DRM300 rev 4 1 30 11 09 7 www selproweb com e S O e e sistemi elettronici professionali 1 5 DRM300 Technical Characteristics Voltage 420VAC 10 Three phase on request 230VAC 500 VAC Power supply i 50 60 Hz automatic selection Overvoltage Protection For Installation Category II 4 KV Operating Electronic three phase voltage regulators for the phase cutting regulation through SCR total control on the principle three phases of the active voltage applied to the load compensation for inductive loads and motors DRM 308 08 A up to 50 C environment if over decrease 0 6 A C DRM 312 12 A up to 50 C environment if over decrease 0 6 A C Current C Rated Overload Control circuits 5VA Control circuits DRM 308 32 W 8A DRM 320 80 W 20A Power Thermally dissipated DRM 312 48 W 12A DRM 328 112 W 28A DRM318 wem 0 0 The output voltage varies according to the value of the remote control signal Operating SLAVE CONTROLLERS DIRECT the output increases as the input increases characteristics rS REVERSE the output decreases as the input increases Default the VAC output increases as the controlled variable i
28. machinery The DRM300 controller helps solving issues brought about by the acoustic noise thanks to its dedicated software which allows with the action of the NTF300 filters specifically designed for the Extra dB Noise applications it is possible to suppress up to the 80 of noise emissions generated by the fan motors The fans can therefore operate at the different required speeds without causing the typical noise arising from a phase cutting regulation the physical geometry and heat exchange capacity of the finned coil are enhanced by the clean regulation obtained which at the same time consents to save energy Unlike INVERTERS thanks to the application of NTF300 filters on our devices it is also possible to dramatically lower and almost eliminate harmonic distortions generated by electronic control The regulator does NOT have any internal filter for the suppression of harmonic distortions EN 61000 3 2 amp 3 12 User Manual DRM300 rev 4 1 30 11 09 6 www selproweb com e S E Q sistemi i professionati 1 4 EC Directives amp Technical Standards Like all of our products the DRM300 series has obtained the CE mark in compliance with the EMC Electromagnetic Compatibility directive 2004 108 EC The essential requirements of the directive are satisfied by the conformity to the generic standards for industrial environments Standard code Description 2006 42 EC EN 60204 1 Safety of machinery Electrical equipmen
29. may causes a severe deterioration of the motor windings and even short circuit in NOT suitable motors In general it is suggested to use motors with resistive high slipping rotor in silumin defluxed tropicalized CLASS H motors since they give better performances in speed variation are quieter and need lower inrush currents When choosing the motor it is always recommended to contact your equipment supplier and order a motor suitable for voltage variation ADJUSTABLE and perform practical tests of the motors or prototype machines in order to verify their proper operation WARNING Before installing the DRM300 regulator you are invited to read this manual which describes the necessary procedures for correct installation and commissioning of the controller DRM300 User Manual DRM300 rev 4 1 30 11 09 4 www selproweb com e S SS O e sistemi elettronici professionali The digital DRM300 series dedicated to applications for Air cooled Heat Exchangers consist of e Configurable controller in n 03 numbers of available SLAVE modes simply by selecting with DIP Switch and connecting to the controls signals terminal block e Two 2 inputs for the connection and the management of one or two signals through mA Vdc signals e The following regulation functions are also available DIRECT REVERSE operating mode Start Stop contact for remote OFF or Heat Pump mode active by closing the contact TK NO NC
30. ncreases The controller can be preset through the keypad on board Any combination of the following operating modes is available Analog control signals 0 10 Vdc rS 010 4 20mA Ri I00Ohm Code rS 420 INPUT Signals amp Contacts l l PWM digital signal from 3V to 30V insulated and not polarized Logic control signal zen Code rs PWM Start Stop Heat Pump Programmable free potential On Off contact with Sw4 for NO or NC Free potential On Off contact NC Analog control signal Slave Unit control signal 0 10 Vdc max 30mA INPUT D 20V 20 max 40mA not stabilized protected from short circuit Auxiliary Supply Signals amp 5V max 20mA stabilized and protected from short circuit Contacts Potentiometer supply 10V 5mA stabilized amp protected for external manual command RL1 Relay Contact COM NC NA for Alarm relay RL1 Select the regulation 0 10Vdc or 4 20mA for IN1 amp IN2 Dip Swicht Select the regulation mode Direct Reverse Available DSw Select the regulation Linear Quadratic f ti DSw 4 Select the NO NC function mode of the Start Stop une ni ON i i i i Select the RLI alarm mode selections OFF DSw 6 Select the RLI alarm mode e To active the CosPhi adjust DSw 8 Available for CUSTOMER custom on request User Manual DRM300 rev 4 1 30 11 09 8 www selproweb com S O e A e sistemi elettronici professionali PWR CPU RUN DL2 E ES G
31. or FANs OFF in 3V PWM QSF PWM max 30v SIGNAL NOT POLARIZED DIRECT mode REVERSE mode Vac in 9o Vac in Lim Lime hi MAX RPM limit VAC Upper jump point VAC Lower jump point VAC Cut Off Bypass MIN RPM limit io HystereisonSo For REVERSE mode set the So value at MAX scale Es with rS010for 0 10 Vdc So 0 Vdc for DIRECT mode So 9 5 Vdc for REVERSE mode DIP Switch DIP Switch rabbi a ld 12345678 12345678 DIRECT Mode REVERSE Mode User Manual DRM300 rev 4 1 30 11 09 15 www selproweb com e S e EA j Q O e sistemi elettronici professionali 2 6 AUXILIARY CONTACTS amp SIGNALS terminal block M3 On the MG signals connections there are available M3 START STOP S2 contact NO NC Dsw4 selection T K contact NC for thermal protection T K Contact 0 10Vdc output for extra power SLAVE units START STOP OUT 0 10V thi 1 1 Auxiliary OUTPUT 0 10V max 20mA this output is available for the regulation of other SLAVE unit for extra power SIGNAL OUT 8 6 0 10Vdc output signal for SLAVE unit amp Start Stop g _7 Remote DSw4 OFF S2 OFF O K for working S2 ON ON OFF S2 contact DSw4 ON S2 ON O K for working S2 OFF TK ra contacts Thermal contact TK ON O K for working TK OFF Thermal Alarm 2 7 RL1 Alarm relay terminal block M4 On the upper side of the controller card there is the
32. rale latal 2 USCITE OUTPUT SORTIE AUSGANG USCITE OUTPUT 8 SORTIE AUSGANG Ay ATTENTION A The fan motor can be connected star and delta without neutral connection the direction of rotation of the motor can be changed by swapping two of the three supply cables gt The DRM300 regulator can control several motors connected in parallel assuming that the absorption of their total current does not exceed the rated current indicated on the DRM300 data plate The speeds of the motors vary at the same time variances in behavior during start up and at low speeds are due to slight differences between the motors even if they are of the same type User Manual DRM300 rev 4 1 30 11 09 13 www selproweb com S O SS e sistemi elettronici professionali 2 3 DIP Switch DSw1 DSw8 On the upper side of the card the is a eight position DIP Switch DSw1 a DSw 8 to change the regulations functions Dip Swicht DSw Selection for 4 20 mA control signal on inputs INI amp IN 2 Selection for 0 10Vdc control signal on inputs INI amp IN 2 Reverse mode the V AC output increases as the input command increases Direct mode the VAC output decreases as the input command increases Quadratic function mode Linear function mode Start Stop Tor NC external contact ON run OFF Stop Start Stop for NO external contact OFF run ON Stop O RL1 OFF With ONE or more activ
33. red so as to avoid destructive short circuits and maintain the sense of rotation of the motor Y Before supplying the load with maximum voltage the supply should be disconnected from the Regulator Therefore o Itis advisable to use a three position manual switch as a commutation device o If automatic commutation is performed by means of contactors make sure there is some delay at least 2 seconds between regulator disconnection and load activation PE faston UVW PE RST BY PASS SAM SEM PE ALIMENTAZIONE L1 POWER SUPPLY ALIMENTATION L2 EINSPEISUNG L3 VENTILATORI FANS VENTILATEURES VENTILATOREN User Manual DRM300 rev 4 1 30 11 09 12 www selproweb com e e sistemi et tronici professionali 2 2 Available options for multi fans connections On request it s possible order the DRM300 regulators with the terminals for the connection of more than one fan the figures represent the available options from 8A to 20A single exit standard or four 4 exit connection cables MAX 1 5 mq 8A UVW PE RST 42A SOAS DIDI T1T2T3 L1L2L3 18A LL 20A ss de USCITE T1T2 T3 USCITA OUTPUT SORTIE AUSGANG from 20A to 28A with double exit standard or eight 8 exits connection cables MAX 1 5 mq SS geo T1 T2 T3 vi
34. s that can be repaired by the user The regulator must be suitably and effectively earthed by the installer according to the standards in force Earth 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 external protection cover DO NOT touch any electrical parts of the circuit when the power supply is connected under any circumstances Before supplying power to the unit make sure that the regulator is correctly connected to the power supply and to earth 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 connecting 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 M3 S2 ON OFF The S2 ON OFF contact on the terminal card M3 does not cut the mains supply and therefore cannot be used as a safety switch Install the regulator out of direct sunlight in order to protect the case from overheating The appliance can operate at environmen
35. sicesnersastesnnstaveriuncavesvcrsevnassastersistevmeenncnnsssnceremesinerestemavsncennsiveraniissenstuaateensin nines nnceneeiies 19 5 1 Manual remote En Kr CN 19 52 pressure transducer for 4 20 mA amp 0 5 VHG usuteeisziieconeteevidsdeFeepsstssediedezsebbdbds vd Psdezvi past uei da L aree ped E Pe ei absiadei besten eU E uL eT vU LE Devi E HL HE VORM EE dud 0a 20 5 3 temperature probe NTC 10 Kobi 257 ssissisasisssnnsatscsvetvensssnewcssavntviinsansewsssanidwanmeanawsacanibwaisuannsiedacasintwainuaninswdadannbiniwanasweudanilwnmuaninswnudawnbinnwaunanite 20 6 3 1 NTC housing 20 5 4 RGF MEI 4 Universale input Expansion Module ccce eee ee eee eee eee esee ee eee eee eee eee eee eee eee eese eee eee sees eee eee ee eee eee esee eee tease eee eene 20 5 5 Noise extra db suppression FILTER for phase cutting regulators cccccccccccscscscccsssccssscssssssssssssssssssssssssssssssssssssssssssssssssssssssssssses 21 5 6 Filter for suppression of Harmonic Distortions IEC 61000 3 2 amp 61000 3 12 cccssssscssscssccssccscscsscssccsscscccsssssccscsssssscscsscssscssscssecs 22 6 0 DRM300 Electrical TESIS EE 23 Description of symbols used in the present manual Attention Information Compliance with CE mark Electromagnetic Emissions Low Voltage Directives PRODUCT end of life WEEE dire
36. t of machines EN 60204 1 Safety of machinery Electrical equipment of machines 2006 95 EC EN 50178 Electronic equipment for use in power installations Adjustable speed electrical power drive systems Part 3 EMC 2004 108 EC EN 61800 3 product standard including specific test methods All products have been tested in accordance with the procedures and test conditions laid down in the standards specified in the product technical file Since these products are destined to be used not only as stand alone systems but also as components of other machines or plants all compatibility tests to the standards have been performed under typical conditions of use In particular the tests have been performed in a system consisting of a voltage controller DRM300 a control cable and relative commands a supply cable a motor cable and a group of fans with an equivalent power to the value of the nominal current of the controller With reference to EMC Compatibility according to the Marking C Zei LVD with CDM System with PDS System solo Regolatore Regolatore Ventilatore All SELPRO controllers are suitable for the installation in PDS systems Power Drive System Controller with connected fan s which guarantee the EMC compliance of the System Controller Fan s The final specifications of the system or plant in compliance with the EMC directive are in any case the responsibility of the installer who must put the system
37. tal temperatures up to 50 C Do not install it where this temperature may exceed otherwise the integrity of the regulator will be compromised since the controller may make the user appliance operate at full load 100 with all consequent effects The equipment must be placed vertically in order to encourage heat dissipation and to ensure sufficient air circulation in a free space measuring at least 150 mm above and below the regulator If several regulators are to be grouped together on a single electric board please provide forced air circulation with a fan or with a sufficiently powerful cooling unit 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 the external protection panel is properly closed DO NOT alter or damage the identification stickers on the equipment rms of use The DRM 300 series devices are designed to vary the three phase AC voltage thanks to the phase cutting principle in order to regulate the rotational speed of three phase asynchronous high slip motors to be used with axial and centrifugal fans in Air Conditioning Refrigeration Ventilation and Air Treatment Systems Any different use of the equipment is strictly FORBIDDEN 3 Manufacturer Declaration
38. temperature pressure air flow rate etc for the whole Air System with a sensible increase of mechanical and electrical lifetime of the components of the system Furthermore the proportional regulation allows to Utilize equally the whole surface of the constantly operating heat exchanger Manage the heat exchanger s power in a more rational and balanced way by operating gradually at low speeds and consequently optimizing the exchange power through a better use of fins Regulate the operating efficiency of the heat exchanger according to the actual cooling needs Reduce the total amount of coolant Reduce dirt and dust accumulation on the heat exchanger fins Make the mechanical structure of the heat exchanger easier by eliminating the internal partition walls Among the different type of equipment that allow to perform a proportional regulation of the rotational speed of fans driven by synchronous and asynchronous motors there are also the FAN SPEED CONTROLLERS with AC voltage PHASE CUTTING With these controllers the active voltage given to the motor varies proportionally from a minimum up to a maximum value which corresponds to the AC voltage supply the required frequency is the mains frequency 50 or 60 Hz This kind of regulation requires the use of motors suitable for phase cutting control class F or H and defluxed since they must be able to stand an increase of the internal temperature at low operating voltages which
39. ur n v gt cas C dw j HES Ee p5 H WE mo er Vac stepless controllers for Three phase asynchronous Motors of Axial amp Centrifugal Fans FAN speed Control Solutions e S e ELA Q O e sistemi elettronici professionali DRM300 series Code Selection The following table shows how order codes are created and which versions are available for each Characteristic or Function Q Number of Phases 08 8 Ampere eee peri Ampere RMS at50 c A0 400Vac MIN limit 380Vac MAX limit 440Vac 10 XX Voltage supply 230Vac 10 48 480 Vac MIN limit 460Vac MAX limit 500Vac 10 Operating 0 Controlled Power Unit characteristics Step Starter Version for textile ducts on request Control inputs Control Signals Standard Configuration r C configuration 0 10Vdc amp 4 20mA amp PWM 3 30V not polarized d Protection CASE P For intemal instalation Freie 0 Sandara connection teephase frt n EE 8 ConecionioN S tors 20K 28A mofe ierphae Growd Revision E Last SELPRO revision niit the most recent revision of the product will be delivered The given current values RMS are at full load at an environmental temperature of 50 C O wes IP 55 User Manual DRM300 rev 4 1 30 11 09 1 www selproweb com sistemi elettronici professionali WARNING Safety warnings Or Follow the instructions in this manual exactly and observe
40. w selproweb com S O e e sistemi elettronici professionali 5 0 Accessories 5 1 Manual Remote Control Units ZC RGF PB1034 00000 ZC RGF PB1035 10000 with 22 knob ZC RGF PB1040 10000 with 22 knob User Manual DRM300 rev 4 1 30 Series of potentiometers for manual remote control Potentiometer for external remote control Manual speed setting with 0 10 Vdc Available 1 amp 10 turn versions with standard knob 2 22 and silk screen label Available 10 turn version with knob 30 with 100 Set points Mounting in switch cabinet doors shaft length 15 mm 6 3 mm Complete with front plate 50 x 50 mm Linear potentiometer for 0 10 Vdc remote manual control 1 turn 10kohm 1 W in Cermet Front plate with silk screen label 50 x 50 mm and knob diameter 2 22 Linear potentiometer for 0 10 Vdc remote manual control 10 turns 10kohm 3 W wire Front plate with silk screen label 50 x 50 mm AC voltage converter for manual control Input 24Vdc gt gt gt Output 0 10Vdc with adjustable MAX Vdc Out LIMIT for the regulation of Fan motors Geared motors for shutters J Geared motors for motorized valves Front plate with silk screen label 50 x 50 mm AC voltage converter for manual control Input 24Vdc gt gt gt Output 4 20mA for the regulation of Fan motors Geared motors for shutters Geared motors for motorized valves Front plate with silk screen label 50 x 50 mm 11 09 19
41. window situated on the interchangeable cartridge which shows the status of the overvoltage protector OK green KO red TEST rosso red rouge mmm mmm mmm mmm mmm mmm mmm mmm mmm mm mmm mm mm mm mm mm mm mm mmm mmm mmm mmm mmm mm mmm l User Manual DRM300 rev 4 1 30 11 09 25 www selproweb com m 3 TECHNICAL ASSISTANCE FORM 1 All DRM300 equipments are guaranteed for 36 months from the date of testing 2 The guarantee will be rendered invalid under these circumstances e evidence of tampering with the mechanical or electrical parts e improper use e incorrect installation e external electrical causes Please keep this sheet close to the DRM300 regulator To improve the assistance service and quick 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 Date of installation Date of breakdown Description of the anomaly Noisy motor Burnt motor Burnt fuse Unbalanced phases Protection interrupt phaseR _ phase S _ phase T Blocked motor Differential interrupt Description Control and contacts check card Soft Start dE INPUT NTC Contact DIR REV Prop Band Pb Lim Max Out Contact Stop Set point SP Lim Min Out Contact SP1 SP2 Cut off Thermal contact INPUT 4 20 mA Transducer Supply 24 Vdc 40mA INPUT 0 5 Vdc
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