Operating Instructions EN Direkt driven
Contents
1. Intermediate circuit connection EN 9 16 5 4 7 Wiring instructions for type MM420 frequency inverter To ensure that the directives of the IEC TS 60034 17 2002 corrigendum 2003 maximum stress limit of the permitted pulse voltage are complied with the following instructions must be adhered to under all circumstances Keep the cables short Apply cable screening over a large surface area Keep the number of contact points between the inverter and fan to a minimum preferably direct from the frequency inverter to the motor terminal box Caution when using bypass operation Dynamic transient phenomena may arise here If absolutely necessary only switch off if currentless i e first revoke the release of the inverter and then open the motor cables See also point 4 relays are also additional connecting points Also be sure to observe the following wiring requirements screened cables in accordance with EMC guidelines must be used between the filter and frequency inverter and between the frequency inverter and motor e The protective earth conductors must be fitted in addition to the screened cables Cables longer than 20m require a motor inductor between the frequency inverter and motor available on request Control cables and motor cables must be installed separately and where necessary be crossed at 90 The screened cables must be applied on both sides e A large area of the screened motor cable is to be attached to t2. NICOTRA Gebhardt Operating Instructions EN Direkt driven centrifugal fans Translation of the Original BA RZA 6 3 09 2010 RZA EN 2 16 Contents 1 Important information 2 safety notes 3 Technical description 4 Transport 5 Mounting Installation 6 Commissioning 7 Upkeep Maintenance 8 Faults 9 Service EC Declaration of incorporation EC declaration of conformity Further languages on request Important information Nicotra Gebhardt Fans are state of the art design and comply with the requirements for health and safety of the EU Machinery Directive Nicotra Gebhardt fans offer a high level of operational safety and a high standard of quality which is guaranteed through a certified Quality Management System EN ISO 9001 All fans are tested before leaving the factory and are provided with a test seal However all fans can be dangerous e if they are not installed operated and maintained by trained personnel e if they are not used for approved applications this can endanger the life and limbs of personnel cause material damage to buildings and equipment and affect the life of the product Attention These Operating Instructions must be read and observed by all personnel engaged in works involving fans The Operating Instructions e describe the approved applications for the fans and protect against misuse e contain safety notes which must be closely observed e warn o
3. f ej Q1 Q1 Ean e The electrical installation of the fan and components must only be carried out by trained specialists in accordance with these Operating Instructions and with regard to the effective regulations as well as the Operating Instructions of the frequency inverter e The following Standards and guidelines are to be observed o IEC 60364 1 DIN VDE 0100 DIN EN 60204 1 o EMC guidelines o the regulations of the local Electricity Supply Company e Equipment in accordance with EN 60204 1 is to be installed as protection during unexpected events e g an isolation switch for inspections Motors The specially developed low slip integral motors are designated as having protection class IP54 and heat class F They are optimised to a high rate of efficiency with speed that can be adjusted between 0 and 100 via the frequency inverter The motors are fitted with an easily accessible metal clamping box The motors meet the interference immunity requirements of EN 50082 2 Operation with a frequency inverter can depending on the inverter design different types feature different interference suppression measures result in varying interference emissions When operating with motor frequency inverter the EMC instructions of the frequency inverter manufacturer see Operating Instructions must be observed in order to meet the permissible limit as per EN 50081 1 The motors are designed for S1 continual operation With more
4. 80 70 90 87 1120 Start Lookup Time sec gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 1121 Response Time sec gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 gt 30 3900 End Commissioning 1 1 1 1 1 1 1 1 1 3 Access Level 2 2 23 2 8 2 2 Ee 2 S E Motor Protection after connecting 5 6 or 7 the parameter of P0701 P0702 or P0703 must be 29 4300 Voltage Frequency 9 9 7 9 9 9 9 9 9 Curve Square 2000 Reference Frequency 110 110 100 95 90 80 70 90 87 1 For secure operation of our RZA Fans with Micromaster there are following Settings required after quick start Also note next pages EN 8 16 Connection diagram for frequency inverter 1 3 AC 200V 240V 3 AC 380V 480V PE Tnn es EF a ee PE L N L1 L2 i EZ ES I I I I L la a lt m m e e e e e e G a o a a a a G a a a a a mG _ 5 i i l i 24V i ee 8 1 124V max 100mA I i Ls oV VA E VA RL1 potential separation 1 Power supply and analogue input Input voltage OV to 10V scalable 2 Power supply 3 Output relay contact AC 250V max 2A inductive load DC 30V max 5A ohmic load 4 Analogue output OmA to 20 mA 5 Ifa communications module is connected then the serial interface is ineffective 6 To get an additional digital input DIN4 the circuit must be changed as shown in fig 6 7 Control panel accessory
5. and or material damage resulting from any deviations from the above Wherever control engineering devices featuring electronic components e g frequency inverters are used the recommendations of the device manufacturer as well as our wiring instructions and recommendations for cables and connections see Section 5 4 must be observed in order to prevent electromagnetic faults EMC Improper use Examples of an improper installation include e media with unacceptably high or low temperatures e aggressive media e very dusty media The results would be bearing and corrosion damage loss of balance vibration deformation abrasion damage Unauthorised operation e No operation above the indicated rom see type plate data sheet e No operation at rom ranges with increased vibration resonance e No operation at rom ranges out of permitted fan curve area stability of flow pattern e No operation if fan becomes polluted Danger points Injury to personnel and material damage can result from impeller breakage shaft breakage fatigue failure and fire from spark creation 4 3 Transport Transport damage Deliveries are to be immediately checked as being intact and complete in the presence of the carrier In the event of transport damage the attached instruction leaflet is to be observed Fans must be carefully transported Improper transport e g unsupported tilted positioning can lead to e the impeller becomin
6. limits to be met Non observance of this can lead to destruction of the motor EN 7 16 o1 ep ej A Parameters of the MM420 frequency inverter When operating with a frequency inverter with rated voltage of 400V the effective cut off frequency must be set to 87Hz The motor must then be in a delta connection The output voltage of the frequency inverter in relation to the frequency is illustrated for a quadratic voltage frequency specification in the diagram opposite V 400 Motor voltage 79 50 87 Hz Frequency _ RZA 11 0225 0250 0280 0315 0355 0400 0450 0500 0560 z 8 2 2 z l3 Re Se Bo o SES B Bo Ba Zo SSE 2 co Ng THB OH No NG FD Be 9 2 las aao oala anaa ao S S Sr Sr Se Sr Br Br Br Foco Te THe Fei FSB FH Te Te Te O47 04 094 04 OF Of O04 04 04 SQ Sa Sa Sa SF SG SG SG SG S2 22 22 22 22 22 Z z 2 Nr Funktion Se 6 S Sj Sa Sa S 10 Quick Start a e E a a 304 Nominal Motor Voltage 400 400 400 400 400 400 400 400 400 305 Current A 1 6 2 0 3 7 59 7 9 120 15 8 15 9 212 307 Nom Motor PowerkW 0 60 095 1 50 2 20 360 440 520 590 11 00 310 om Molorrrequeny g7 e7 e7 sis 311 Speed 1 min 2510 2520 2540 2530 2530 2540 2520 1700 1660 100 Command Source _ 1 Console 2 Jumperboard Source of Nominal _ 1 Keyboard set point 2 Analog input 3 Fixed frequency 12 Analog 1000 Ez Frequency _ Input Keyboard 1080 Min Frequency Hz 0 0 0 0 0 0 0 0 0 1082 Max Frequency Hz 110 110 100 95 90
7. of the IEC TS 60034 17 2002 corrigendum 2003 maximum stress limit of the permitted pulse voltage The fan may only be commissioned if all the safety devices have been fitted Ensure that the impeller has been secured acc to DIN EN ISO 13857 The suitability of protection devices and their fixtures to the fan have to be evaluated within the complete security concept of the installation Test run The fan should be switched on briefly to check that the direction of rotation of the impeller agrees with that indicated by the arrow In the event of the motor running in the wrong direction the poles are to be changed over whilst observing the electrical safety instructions Check the current consumption Upon reaching the operating speed of the fan immediately measure the current consumption and compare it with the nominal current on the motor or fan type plate In the event of a substantial overcurrent switch off immediately Check for quiet operation Check for quiet operation of the fan There should be no unusual rocking or vibration Check for untypical bearing noises gt N N gt Servicing maintenance Safety notes Before working on the fan it is imperative to ensure e The drive motor is separated from the mains on all poles In the case of trouble the rotor could be under current e The impeller has come to rest e The surface temperature has been checked to prevent burning e There is no possibility
8. speed in radial direction must not exceed 4 5 mm s to monitored at the bearing or bearing housing of the fan or motor For fans of a impeller diameter up to 315 mm a vibration speed of up to 7 1 mm s is acceptable A deposit of dust and solids can cause unbalancing and consecutive damages In order to prevent this danger regular inspection and cleaning operations are to be scheduled If due to the type of media conveyed one can expect wear or dirt accumulation on the housing corrosion abrasion caked material then regular inspection and cleaning must be carried out The intervals will vary according to operating conditions and should be set by the operator EN 13 16 N Go f EN 14 16 No high pressure cleaners steam rod cleaners are to be used Inlet and discharge accessories Flexible sleeving compensators between the fan and plant parts are to be checked at regular intervals Unsealed sleeving leads to breakdowns and danger from escaping transported medium and must be replaced Spare parts The RZA centrifugal fan is a proven maintenance free and long lasting product of the highest quality In the unlikely event of appliance failure please contact our Customer Service Department or return the complete fan to us For economic reasons only complete fans can be replaced Nicotra Gebhardt accepts no responsibility for damage resulting from the use of non Nicotra Gebhardt parts Faults Deviations
9. 0 CY pf 100 CY OLFLEX is a registered trademark of Lapp Kabel Stuttgart The connection box has 2 cable passage holes provided with a thread M 20x1 5 They are provided for the main and the PTC lead both shielded The union pieces have to be provided with enough contact surface for the cable shielding EN 11 16 Ele ep N ep co e e EN 12 16 Commissioning Safety checking e Check that all mechanical and electrical safety devices have been fitted and connected e According to the type of installation of the fan the inlet and discharge openings as well as the drive shafts must be fitted with protection devices in accordance with DIN EN ISO 13857 The appropriate protection guards are available and should be ordered as extras e lf the surface temperature of accessible fan parts exceeds 70 C DIN EN ISO 13732 1 isolating protection devices must be fitted Before commissioning the following checks must be carried out e The ducts and the fan must be checked for foreign bodies tools small components building debris etc e The free running of the impeller must be checked by hand e The power setting voltage and frequency for the mains connections must be checked against the fan or motor type plate e Connected control devices must be checked for functioning e Inspection openings if they exist must be closed Operation with a frequency inverter is only permissible in compliance with the directives
10. erms general design principles Part 1 Basic terminology methods DIN EN ISO 12100 2 safety of machines Fundamental terms general design priciples Part 2 Technical principles and specifications DIN EN ISO 13857 safety of machinery Safety distances to prevent hazard zones being reached by upper and lower limbs EN 60204 1 Safety of machines Electrical equipment of machines Part 1 General requirements Applied national standards and technical specifications particularly VDMA 24167 Fans Safety requirements The manufacturer is committing himself to make the special documents of partly completed machine available to any state authority if required Waldenburg 22 09 2010 VM horwtas AV Makd Head of Production Head of Research and Development I V W Weckler I V Dr J Anschutz 1 The complete listing of applied standards and technical specifications see manufacturer s documentation 2 As far as harmonised standards are not existing EN 15 16 EC Declaration of conformity to EC Directive of Electromagnetic Compatibility 2004 108 EG Herewith we declare that the machinery designated below on the basis of its design and construction in the form brought onto the market by us is in accordance with the relevant safety and health requirements of the EC Council Directive as mentioned below lf alterations are made to the machinery without prior consultations with us this declaration becomes invalid Productdesig
11. f dangers which can exist even with correct applications e give important information on safety and the economic use of the fan whilst ensuring the full benefits of the product are available e are to be complemented with the trade and national Standards Regulations and Directives e Dn 3 1 Nicotra Gebhardt accepts no responsibility for damage or breakdowns that can be traced back to non compliance with the Operating Instructions The manufacturer s guarantee does not apply following unauthorised conversions and alterations to the fan No responsibility is accepted for resultant damage Safety Notes This symbol identifies all safety information concerning danger to life and limbs of personnel This symbol draws attention to the information in the Operating Instructions which must be complied with in order to ensure correct working procedures as well as preventing fan damage and destruction Technical description Product description RZA The rotavent series of centrifugal fans with double inlet and low slip direct drive integral motors in the fan airstream are suitable for the transport of dust free air and other non aggressive gases or vapours The scroll casing which is not gas tight is made of galvanised sheet steel and is provided with flange connections at the outlet The powder coated centrifugal impeller with backward curved hollow profile blades is attached directly to the rotor of the integral motor The in
12. from normal operating conditions always lead to functional breakdowns and should be looked for immediately by maintenance personnel Recurring faults can result in the destruction of the fan and give rise to damage in plant parts and injuries to personnel In the event that maintenance personnel cannot eliminate the fault please contact our Customer Service Department Service We offer to all our partners the following services e Mobile Customer Service e Spare Parts Service Telephone 49 0 7942 101 384 Telefax 49 0 7942 101 385 E Mail info nicotra gebhardt com www nicotra gebhardt com EC Declaration of incorporation The manufacturer Nicotra Gebhardt Gebhardtstrasse 19 25 D 74638 Waldenburg Germany herewith declares that the following product Productdesignation Centrifugal fan direct driven Type nomination RZA Serial n see type plate Year of production see type plate ll mI qualifies as a partly completed machine according to Article 2 clause g and does comply to the following basic requirements of the Machine Directive 2006 42 EC Annex Article 1 1 2 1 3 7 1 5 1 This partly completed machine must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the provisions of the Machine Directive 2006 42 EC The following harmonised standards 1 have been applied DIN EN ISO 12100 1 Safety of machines Fundamental t
13. g jammed e the shaft becoming deformed e bearing damage Transport safety e The transport material is to be selected according to the weight and packaging of the fan type plate data sheet e Ensure that loading is carried out in accordance with the instructions e Four point lifting is to be provided when transporting by crane 2 slings The attachment points are e packaging e fan casing slings The attachment points are not e motor supports e inlet and outlet flanges Intermediate storage For intermediate storage of the fans the following points must be observed e The fan should be stored in its transport packaging this can be added to in accordance with external influences e The place of storage must be dry and dust free and must not have high humidity lt 70 e max permissible storage temperature 25 C to 40 C EN 5 16 mm Q1 By iat Q1 Go fa P gt EN 6 16 Mounting Installation Safety notes e Mounting may only be carried out by trained personnel in accordance with these Operating Instructions and with regard to the regulations in force e Safety devices that have been removed for mounting work must be replaced immediately afterwards and before the electrical connection is made e The fans must be mounted such that secure fixing is guaranteed at all times during operation e Fans must be fixed to plinths or base frames Supporting the weight at ot
14. he motor s terminal box using a metal connection 5 4 8 Motor protection with frequency inverter For operation with the motor protection function using PTC it is necessary to install a 1kQ resistor on site This is to be connected in accordance with the wiring diagram and together with the PTC serves as a voltage distributor Control Clamps Motor PTC 1 KQ 8 5 6or 9 5 4 9 Connection diagram Power fuse Circuit breaker Power inductor Filter class B only Screen Frequency inverter Motor EN 10 16 Recommendation for cable and PG connection Recommended minimum cable and gland size in the following table on the basis of the delivery range from Lapp Kabel company Stuttgart Necessary cable size has to be finally determined in consideration of different factors it side i e Cable lengt way of laying Connecting cable Connecting cable Connecting cable RZA 11 FI Motor Mains FI FI PTC OLFLEX Min dia OLFLEX O CY AG tuer l l e l 0225 4D 7 100 CY po 100 CY 2 x 0 5 mm M00CY CY Ay a a 0250 4D 7 100 CY po 100 CY aooe CY Ay tuer l l e l 0280 4D 7 100 CY po 100 CY M00CY CY Ay or or 0345 4D 7 100 CY Po 100 CY M00CY CY ass a we l 0355 4D 7 100 CY Po 100 CY aoocY 00K iy tae l a l 0400 4D zy 100 CY Po 100 CY 4x _ 100 cY pf 100 0 0450 4D 7 100 CY po 100 CY 4x ICY Pf ow 0500 6D 7 100 CY Pf 100 0 4x 1oocy po 100 0560 6D 7 10
15. her points leads to fan damage and is dangerous Installation site e The installation site must be suitable for each fan with regard to type composition ambient temperature and ambient medium points 3 2 3 3 and 3 4 should be observed e The supporting construction must be level and have sufficient bearing strength e When installing outdoors or if very damp air is to be moved a condensation drain plug available as an accessory should be inserted in the lowest point in the casing Installing Fixing e The fan or base frame must be fixed without stresses to the supporting structure e n the case of the RZA series and for packaging reasons the feet are mounted as Standard with the 90 casing position e Setup the feet in the desired position before final fixing Stresses can lead to bearing damage and fatigue failures They also affect the functioning of the fan e No forces should be transferred from other parts of the plant e Use flexible connecting supports for duct connection e Ensure even spring of the vibration dampers Electrical connections Safety notes Attention The rotor is fitted under electrically isolated conditions i e without earthing Before coming into contact with the impeller the fan has to be switched off the power or from the inverter The spiral casing has not been earthed at the factory The customer must take appropriate steps in accordance with DIN VDE 0100 Q1 f INO or P oo Q1 f
16. nation Centrifugal fan direct driven Type nomination RZA Serial n see type plate Year of production see type plate Relevant EC Council Directive EC Directive of Electromagnetic Compatibility 2004 108 EG Applied harmonized standards in particular EN 6020 1 EN 6100064 Waldenburg 22 09 2010 4 M brett AV Pout Head of Production Head of Research and Development I V W Weckler I V Dr J Anschutz For the complete List of applied standards and technical specifications see the manufacturer s documentation Nicotra Gebhardt GmbH Gebhardtstrasse 19 25 74638 Waldenburg Germany Telephon 49 0 7942 1010 Telefax 49 0 7942 101170 E Mail info nicotra gebhardt com www nicotra gebhardt com EN 16 16
17. of an uncontrolled running of the fan during the maintenance work e g through an isolating switch e Any debris or dangerous materials which have arrived in the fan with the transported medium must be removed using a suitable method e Fan operation may resume after the safety checks of Section 6 Commissioning Safety checks have been carried out e Only limited work may be carried out whilst in the operating condition and in observance of the safety and accident prevention regulations e g measurement of vibration Non observance of these points endangers life and limb for the maintenance personnel If the state of the fan does not allow adapted action for repair it has to be put out of order immediately and to be replaced if required Maintenance intervals After having passed the period during which the grease keeps it s lubrication capacity 30 000 h for standard applications bearing are to changed During periods of longer lasting stand stills the fan may be operated shortly in regular intervals This is to prevent the bearings from mechanical load and the avoid ingress of humidity If fans have been hold on stock for a longer period the bearings of fan and motor have to be checked prior to installation The maintenance instructions of the motor supplier as well as the instructions for the switches and control units have to respected The fan has be checked regularly whether vibrations may occur The maximum vibration
18. tegral motors are designated as having protection class IP 54 and heat class F To prevent overloading Positive Temperature Coefficient PTC are inserted in the windings of the motors In conjunction with PTC release equipment or a frequency inverter with PTC connection effective motor protection is guaranteed lf the motor is to be set up outdoors or if very damp air is to be moved then a condensation drain plug available as an accessory should be inserted in the lowest point of the casing 1 Fan Important accessories 2 Inspection cover 3 Condensation drain plug 4 Inlet guard The fans are intended for incorporation into equipment and do not have either their own contact protection nor an earthed metal casing fitted as standard The appropriate protective measures against contact must be taken in accordance with DIN EN ISO 12100 and earthing in accordance with DIN VDE 0100 EN 3 16 EN 4 16 Go INO oo e Q A Technical Data Technical data and the permissible limits are to be taken from the type plate the technical datasheets or the appropriate technical catalogue and must be adhered to Authorised use The fans are intended for the transport of dust free air and other non aggressive gases or vapours Permissible transport media temperatures 20 C 40 C Any installation deviating from the above will be considered unauthorised Nicotra Gebhardt will not be responsible for any injury to personnel
19. than three starts per hour the suitability of the motor is to be confirmed by Nicotra Gebhardt Motor protection To prevent overloading PTC are inserted in the windings of the motors In conjunction with PTC release equipment or a frequency inverter with PTC connection effective motor protection is guaranteed Motor connections Attention The motors ex works are in star connection Y When operating with a frequency inverter the links must be placed in delta connection A See wiring diagram The fans are supplied in a ready to install state and are fitted with an easily accessible metal terminal box Each fan comes supplied with a terminal board wiring diagram in the lid of the terminal box showing the correct connection The following information must be observed when operating with a frequency inverter Operation with frequency inverter Attention When connecting the frequency inverter please observe the Operating Instructions of the frequency inverter which is being used If frequency inverters are used on site it must be ensured that the voltage steepness complies with the directives of the IEC TS 60034 17 2002 corrigendum 2003 maximum stress limit of the permitted pulse voltage Depending on the frequency inverter being used and the line length between the frequency inverter and integral motor additional devices e g motor throttle active sinus filter must be provided to enable the specified permissible
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