LAM Technologies DS10 Series Скачать руководство пользователя страница 12

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Introduction

DS10xx

3.1.2 Main Features

Microstep resolution up to 25,600 steps/rev in 14 different setting solutions

Decimal and binary resolution

STEP frequency over 300KHz

Wide range of power supply

Single supply voltage

Current setting with increments of 0.1Arms

Accurate current control

Resonance damping

High efficiency, low losses and contained limited

Chopper frequency over 20KHz

Automatic current reduction settable from 0% up to 100% with increments
of 10%

Current reduction time settable from 0,05 up to 10 seconds

Optocoupled and differential inputs independently NPN or PNP usable

Current reset on each input

Wide inputs working range (from 3Vdc up to 30Vdc)

Line driving supported

ENABLE input

BOOST input

Optocoupled and differential outputs independently NPN or PNP usable

Protective diode for inductive loads

Digital signal conditioning for each I/O

Colored and numbered removable terminal blocks for easy and fast wiring

Efficient and complete diagnostics

Over/under voltage protections

Phase to phase short circuit protection both direct and crossed

Phase to ground short circuit protection

Positive supply short circuit protection

Temperature protection

Interrupted phase alarm independent for each phase

Univocal indication for each anomaly

Malfunctioning status LED indicator

Motor qualification LED indicator

STEP input pulse signal indicator

Direction change signal indicator

Power supply LED indicator

Digital realization

PC assisted complete and simple setting

PC assisted diagnostics

Compact size

Simple and fast DIN rail mounting

Low cost

Содержание DS10 Series

Страница 1: ...DS10xx Hardware rev 1 10 Firmware rev 1 13 Microstepping Stepper Motors Driver User s Manual ...

Страница 2: ...ed repaired or substituted will be available to be collected at LAM Technologies During and within the warranty period LAM Technologies can on its judgment repair or substitute the product The cost of material and labor will not be charged within the warranty period The above warranty also does not apply to the software LAM Technologies shall not be liable for any direct or indirect damages such a...

Страница 3: ... 2 4 Inputs and outputs conditioning 42 5 2 5 Alarms and Protections conditioning 44 5 3 Inputs and outputs 45 5 3 1 General description 45 5 3 2 Inputs 45 5 3 3 Outputs 47 5 3 4 Timing relations among control signals 48 5 4 Signal LEDs 49 5 5 Protections 51 5 5 1 General description 51 5 5 2 Under voltage 51 5 5 3 Over voltage 52 5 5 4 Over temperature 54 5 5 5 Phase to phase short circuit 54 5 5...

Страница 4: ......

Страница 5: ...bol can cause serious damages to people animals and things The argument is very wide and could require a deeper examination with the technical support The not observation of what described could damage the products Features and functionalities which cannot be easily found in other products A shortcut to reach a target is shown A change or repairing intervention which can be made directly by the us...

Страница 6: ...x 6 The terms listed below are also used Product The microstepping driver described herein User Who selects and or installs and or uses the product Application The machine the equipment the device etc on which the product is applied ...

Страница 7: ... in force in the Country and or application in which the product is used The user must provide that the product is inaccessible while powered on The user must also consider that because of the capacitors inside the driver it is necessary to wait at least for 30 seconds after the power off before acceding to the driver According to the external capacitors eventually mounted on the power supply circ...

Страница 8: ...t in case of breakdown these lines could reach the same potential as the power supply must be considered to meet safety requirements The product could be permanently damaged by corrosive substances such as gas salts etc liquids or conductive dusts Even a long and constant exposure to strong vibrations could cause the damage On some damage conditions the driver could emit sparks and fire The cabine...

Страница 9: ...he product is used in any manner that does not comply with the instructions given in this manual then the product could be permanently damaged For example the product could be permanently damaged if power supplied with voltage superior to the allowed one if supply polarity is inverted if the motor is connected or disconnected while the driver is operating and so on ...

Страница 10: ......

Страница 11: ...sible to intervene on many more parameters than the minimum ones allowed by the dip switches and to adapt in the best way the driver to the application The bundled driver software guides the user in the product configuration simply and quickly and assists the user in the diagnostic giving in real time indications on the status of driver inputs outputs etc The use of last generation components and ...

Страница 12: ...g supported ENABLE input BOOST input Optocoupled and differential outputs independently NPN or PNP usable Protective diode for inductive loads Digital signal conditioning for each I O Colored and numbered removable terminal blocks for easy and fast wiring Efficient and complete diagnostics Over under voltage protections Phase to phase short circuit protection both direct and crossed Phase to groun...

Страница 13: ...nsisting of 1pc numbered removable terminal block red color 2 poles 1pc numbered removable terminal block grey color 5 poles 1pc numbered removable terminal block grey color 10 poles LSP4004 5pc numbered removable terminal block red color 2 poles LSP4006 5pc numbered removable terminal block grey color 5 poles LSP4008 5pc numbered removable terminal block grey color 10 poles ...

Страница 14: ......

Страница 15: ...ical Installation The driver is designed to be mounted vertically on a 35mm DIN rail To block the driver on the DIN rail insert first the bracket on the top on the back of the driver over the top of the DIN rail keeping the driver slightly inclined as shown in the figure then push the driver downward to engage the lower section of the rail To verify the correct engagement of the driver try and pul...

Страница 16: ... on the bottom on the back of the driver Push the hook downward and pull the driver upward slightly rotating it releasing it from the DIN rail as shown in the figure Insert a small flat bladed screwdriver into the red colored hook Push the screwdriver slightly downward and pull the driver upward releasing it from the DIN rail ...

Страница 17: ...r itself with no obstructions wiring cables are anyway allowed No space needs to be left on the sides and more drivers can be packaged side by side taking a very compact space According to the driver calibration and to the running cycle the space can be also substantially reduced without compromising the correct working of the driver DUP ON EN ST FL DS10xx 50m 50m Driver Space required for an easy...

Страница 18: ... forced ventilation to maintain the driver temperature within the functioning range values The fan can be positioned over or under the driver A lateral position is not recommended Thanks to the compact size of the driver an only and economic fan of 120mm x 120mm can supply air circulation sufficient for 6 drivers simultaneously models of 18mm wide DUP ON EN ST FL DS10xx DUP ON EN ST FL DS10xx DUP ...

Страница 19: ...ion could reduce its effectiveness It is important to avoid the driver is covered with powder dust or other The buildup of such substances inside the driver could cause the malfunctioning or the breaking of the driver Filters and necessary solutions must be got ready to avoid them to occur Not recommended position Correct position Air flow direction 30mm Ã ...

Страница 20: ...rminal blocks makes easier the wiring of the driver Each terminal block does not contain iron and is supplied with mobile truck The clamping screw is slotted head sized for screwdriver of 3 x 0 6mm Terminal n 1 Connector CN1 Terminal n 1 Connector CN2 Terminal n 1 Connector CN3 ...

Страница 21: ...a tightening torque of about 0 8Nm All terminals can tighten correctly cables with section between 0 1mm2 and 2 5mm2 24 14 AWG We recommend to skin off the cable for 7 8mm as shown in the figure below Apply a tightening torque of about 0 8Nm 7 8mm ...

Страница 22: ... Vpp Vprp Allowed ripple voltage DS1098 30 Vpp DS1044 DS1048 0 5 58 Vdc DS1073 DS1076 DS1078 0 5 105 Vdc DS1084 DS1087 0 5 210 Vdc Vpbrk Voltage causing permanent damage DS1098 0 5 265 Vdc DS1044 DS1048 54 56 Vdc DS1073 DS1076 DS1078 96 102 Vdc DS1084 DS1087 170 180 Vdc Vph Over voltage protection intervention threshold DS1098 242 255 Vdc DS1044 DS1048 18 19 5 Vdc DS1073 DS1076 DS1078 21 23 Vdc Vp...

Страница 23: ...nd the eventual local capacitor it is necessary to use a conductor with section adequate to the driver s current calibration for safety s it is better to use the max current supplied by the driver The power supply cable can be installed together with the ones connecting the driver to the motor We recommend not to place the power supply cable nearby the signal ones There are two types of power supp...

Страница 24: ...l load and to assure that the values resulting from these components combination are within the range of max and min voltage values specified for the chosen driver model The potency the power supply must deliver is given by the one absorbed by the load depending from the torque required to the motor as well as the rotating speed and by the motor and driver efficiencies The potency lost on the driv...

Страница 25: ... plus the transformer losses It is obligatory to provide on every phase a fuse able to intervene in case of a short circuit at the supply output or a malfunctioning of its parts The reduction level the filter must guarantee can vary a lot according to the laws applied to the field to which the application and or installation belong The producers of filters SHAFFNER and CORCOM can be a good referen...

Страница 26: ... 8 50 2100 50A 100 6800 1 400 25A 3300 2 800 25A 4700 3 1200 25A 5600 4 5 1800 35A 8200 DS1078 6 8 50 2800 50A 100 10000 1 350 25A 1000 2 700 25A 1500 3 1050 25A 1800 4 5 1600 25A 2200 DS1084 6 8 90 2500 35A 200 3300 1 700 25A 1500 2 1400 25A 2200 3 2000 25A 3300 4 5 2500 35A 4700 DS1087 6 8 90 5000 50A 200 6800 1 1000 25A 1800 2 2000 25A 2200 3 3000 35A 3300 4 5 4500 50A 4700 DS1098 6 8 130 7000 ...

Страница 27: ... the rectifier needs an heat sink able to maintain the temperature within the range defined by the manufacturer The working voltage of the D1 rectifier must be then chosen according to the T1 transformer secondary winding voltage multiplied at least by 2 In a configuration with more than a driver where the drivers have not been all calibrated for the max current and or where the working cycle is n...

Страница 28: ...gnetic emissions arise it is possible to try and connect the shield from the motor side Because of possible ground loops which could start we advise to make this wiring only when strictly necessary The driver regulates the current in the motor phases through the supply voltage modulation by chopper technique The use of a good quality shielded cable and of a correct wiring are essential to better r...

Страница 29: ...For greater cable length the cable size must be increased to counterbalance the voltage drop The cable connecting the driver to the motor can be installed together with the power supply one but it must be kept separate from the signal cables If difficulties are met to pass compatibility tests it is possible to place in series to each phase an inductor with a value included between 10uH and 100uH a...

Страница 30: ...ENABLE current enable torque signal negate input 7 BOOST current boost signal positive input 8 BOOST current boost signal negate input 9 FAULT driver status positive output 10 FAULT driver status negate output The section of the cable does not have much importance as the circulating currents are meager in the order of few mA therefore choose the section according to wiring functionality The contro...

Страница 31: ...requiring excessive current to the control equipment The most part of drivers now on the market of the same category uses to place in series to the input a simple current limitation resistor which reduces the input working voltage setting and causes moreover high current values when the input voltage is high The DS10xx drivers on the contrary maintain an almost constant absorption on the whole wor...

Страница 32: ... them permanently Value Symbol Description Min Typ Max Unit Vdo Digital outputs operating voltage 1 30 Vdc Vdobrk Digital outputs breakdown voltage 0 5 37 Vdc Vdoz Zener diode voltage placed in parallel to each output 37 39 42 Vdc Ido Digital outputs available current 80 mA Idobrk Digital outputs breakdown current 120 mA Pwdo Digital outputs dissipable power 300 mW Value Symbol Description Min Typ...

Страница 33: ...all other components earth must be connected Moreover the filter metallic body must be electrically placed in contact with the case Transformer The transformer must be placed close to the filter and must have a shield between the primary and the secondary windings The shield must be ground connected in the star center obtained inside the case Furthermore the transformer metallic body must be elect...

Страница 34: ...compromised Safety is always of first priority Main supply filter Transformer Power supply Earth connection star center Supply cables Motor connecting cables CNC PLC PC etc Drivers control signals DS10xx drivers Power supply data bus etc Case Shield Shield Main supply Towards protection and command devices ...

Страница 35: ...guard the equipment integrity the connection between the PC and the driver must be of insulated type The UDP30 interface makes use of the power supply on the USB port to feed the driver digital section making possible the setting and the reading of information therein contained even without the power supply For a more detailed description on the features and installation of the UDP interface pleas...

Страница 36: ... Arms value supply greater current than those drivers which characterize the phase current as peak value The current calibration must be mainly executed according to the motor features In particular cases it is possible to use an higher current value than the nominal one declared by the motor manufacturer This could be useful to obtain more torque from the motor but this method leads to an higher ...

Страница 37: ...s a superior inductance towards the driver which penalizes the motor torque at high speeds Therefore this kind of connection is used in applications where motor speed is limited or supply voltage sufficiently high When a series configuration is used it is necessary to calibrate the driver to the motor phase current multiplied by the coefficient 0 71 If for example we are using a motor with plate c...

Страница 38: ... made mostly in accordance with the application requirements considering that a greater resolution offers also a better positioning precision and minor vibrations at low speed but on the other side it requires a greater pulses frequency applied to the STEP input Instead low resolutions permit to obtain high motor rotation speeds even with modest pulses frequencies applied to the STEP input but the...

Страница 39: ...ks at impressed current i e they always supply the motor at the set nominal current independently from the motor giving torque to the load or not In other types of motor as for example in DC or Brushless motors the driver supplies the motor with the current strictly necessary to maintain the required position or rotation speed In these cases the driver is able to obtain the information on the posi...

Страница 40: ...current supplied to the motor while in still position The DS10xx drivers allow to define accurately both the current reduction percentage and the timing from the motor stop to the reduction intervention The regulation dynamics is extraordinarily wide and allows to change the current between 0 and 100 of the nominal current and the timing from few milliseconds up to 10 seconds Such a flexibility ca...

Страница 41: ...nt even while motor is rotating This feature can be useful to reduce the heating when the whole torque supplied by the motor is not required for example when the load moves at constant speed Through the DIRECTION input it is then possible to suspend the automatic current reduction A commutation from the enable to the disable status sets to zero the timer used for the automatic current reduction in...

Страница 42: ...e is ignored Direct The signal applied to the input is elaborated by the driver in direct mode without inversion Negate The signal applied to the input is elaborated by the driver in negate mode reverse When the input is active the driver works as the input is inactive and vice versa Active The driver elaborates the input as it was always active independently from its real status If for example we...

Страница 43: ...tion of how the signal is treated high level active input low level inactive input Available for the signals Input signal Conditioning type Signal seen by the driver STEP DIRECTION ENABLE BOOST FAULT Enabled Yes No No No No Disabled Yes No No No No Direct No Yes Yes Yes Yes Negate No Yes Yes Yes Yes Active No Yes Yes Yes Yes Inactive No Yes Yes Yes Yes ...

Страница 44: ...he operative status Permanent Each alarm condition remains in the driver memory To remove the signal the driver must be switched off and then switched on again Enable The breakdown condition signal remains till the driver is not disabled through the ENABLE input Disable The alarms are disabled and ignored by the driver For security reasons some protections cannot be put in this status In the follo...

Страница 45: ...t reduction active a new pulse applied to the STEP input restores the current to the nominal value again DIRECTION This input is used to reverse the motor rotation direction When the input is active the motor moves in the direction opposite to the one obtained with the inactive set input The effective rotation direction clockwise or counter clockwise cannot be prior determined as it depends on the...

Страница 46: ...nput is inactive to the motor is applied the nominal phase current while if the input is active the current is reduced by the percentage defined by the configuration see chapter 5 2 3 Automatic current reduction To realize the over supply function it is necessary to maintain the BOOST input active and set the driver in order that the set nominal current reduced by the percentage indicated by the V...

Страница 47: ...onditioning has been made Fault When the driver is in the operating status the output is active on the contrary when there is the signaling of one or more alarms the output is inactive Through the configuration it is possible to condition this signal to invert its logic and to adapt it to the application see chapter 5 2 4 Inputs and outputs conditioning ...

Страница 48: ... 1 3 μsec tstepoff Inactive STEP input timing 2 μsec tdirset DIRECTION signal setting respect to STEP 16 μsec tdirhold DIRECTION signal maintaining respect to STEP 16 μsec tdiron Active DIRECTION input timing 300 μsec tdiroff Inactive DIRECTION input timing 300 μsec tenableon Active ENABLE input timing 300 μsec tenableoff Inactive ENABLE input timing 300 μsec tbooston Active BOOST input timing 300...

Страница 49: ...the STEP input and with the ENABLE input active the LED is mostly lighted up with short switching off while with the ENABLE input inactive and pulses to the STEP input the LED remains mostly off with short lighting flashes The LED inverts its position for an instant even in presence of a status change of the DIRECTION input This original working method allows an immediate wiring diagnostics and al...

Страница 50: ... alarm For this reason it is not possible to remove an alarm before the first visualization cycle is finished Note that each error signaling can be removed differently according to how the driver has been set for a close examination see chapter 5 2 5 Alarms and Protections conditioning For a detailed description on the various alarms and protections see chapter 5 5 Protections When in the driver t...

Страница 51: ...bout the various configuration options see chapter 5 2 5 Alarms and Protections conditioning When there is at least an alarm signal the driver is not active and the motor is not supplied consequently the torque is null 5 5 2 Under voltage The under voltage alarm intervenes when the driver supply voltage is inferior to the Vpl value Such value varies according to the driver model as per the followi...

Страница 52: ...the problem reducing the distance between the power supply and the driver increasing the cables section or placing an electrolytic capacitor near the driver itself 5 5 3 Over voltage The over voltage protection intervenes when the supply voltage is superior to the Vph value In this condition the driver protects the power stage turning it off Such value varies according to the driver model as per t...

Страница 53: ...he supply voltage is very near to the driver functioning limit and the over voltage alarm sporadically intervenes it is possible in some cases to solve the problem reducing the distance between the power supply and the driver increasing the cables section or placing an electrolytic capacitor near the driver ATTENTION if the supply voltage increases a lot beyond the maximum functioning value and in...

Страница 54: ...old of thermal protection 64 66 69 C 5 5 5 Phase to phase short circuit In case of a motor wirings short circuit on the same phase or on different ones cross phase short circuit the driver stops working and activates the phase to phase short circuit protection This kind of protection requires a careful survey to find the cause of the short circuit Consider that the short circuit can be apart in th...

Страница 55: ... a short circuit with the positive supply voltage Vp the phase to Vp short circuit protection starts When this condition occurs the driver protects itself switching off the supply to the motor and turning in an inactive status According to the driver configuration see chapter 5 2 5 Alarms and Protections conditioning the protection can be removed through a turning off and on cycle or disabling tem...

Страница 56: ... functionalities are Gate and Oscillator 5 6 2 Gate The Gate function allows to enable or not the execution of the pulses applied to the STEP input through a GATE control signal This characteristic makes possible the use of a single step source to control more drivers when contemporary movements are not required as shown in the following representation In this case the control system sends a step ...

Страница 57: ...gnals applied to the STEP input are ignored It is important to note that the signal defined as GATE continues to carry out its natural function if for example the ENABLE input is used as GATE it will be essential to condition the Enable signal seen by the driver as Active through the drop down list on the Control signals panel inside Driver configuration so that the driver remains always enable wh...

Страница 58: ...nds it is necessary to respect some time relations among the signals In the following table are detailed the limits to be observed Value Symbol Description Min Typ Max Unit Tgateset GATE signal setting in respect to STEP 200 μsec Tgatehold GATE signal holding in respect to STEP 200 μsec Tgateon Active GATE input time 500 μsec Tgateoff Inactive GATE input time 500 μsec Tgatehold tgateset Tgateon Tg...

Страница 59: ...ked Oscillator Then it is possible to choose the input to be used as START STOP signal and to define the SELECT input for the frequency selection using the corresponding drop down list For each signal it is then possible to set the digital conditioning to adapt its behavior to the control system logic levels The motor rotation occurs when the START STOP input is active and the motor is enabled Ins...

Страница 60: ...e to apply a security coefficient equal to 0 7 and use as maximum value for the application the maximum speed decreased by 30 In the Oscillator function it is possible to set up to two different frequencies which produce two different rotation speeds which can be selected in real time also during the motor rotation through the SELECT input The Frequency 1 is selected when the SELECT input is inact...

Страница 61: ...rved Value Symbol Description Min Typ Max Unit Tssset START STOP signal setting in respect to STEP 200 μsec Tsshold START STOP signal holding in respect to STEP 200 μsec Tsson Active START STOP input time 500 μsec Tssoff Inactive START STOP input time 500 μsec Tslcon Active SELECT input time 500 μsec Tslcoff Inactive SELECT input time 500 μsec Tsshold Tsson Tssoff Active Inactive Active Inactive S...

Страница 62: ......

Страница 63: ...2800 25000 25600 Step Rev Ml Motor inductance seen by the driver 0 8 50 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital o...

Страница 64: ...by the driver 0 5 30 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 65: ...by the driver 0 8 50 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 66: ...by the driver 0 6 40 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 67: ...by the driver 0 5 30 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 68: ...by the driver 1 50 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output di...

Страница 69: ...by the driver 0 6 35 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 70: ...by the driver 0 6 30 mH Vdi Digital input voltage range 3 30 Vdc Vdibrk Digital input breakdown voltage 35 35 Vdc Idi Digital input supply current 4 6 8 mA Vdo Digital output voltage range 1 30 Vdc Vdobrk Digital output breakdown voltage 0 5 37 Vdc Vdoz Output zener diode voltage 37 39 42 Vdc Ido Digital output current range 50 mA Idobrk Digital output breakdown current 120 mA Pwdo Digital output ...

Страница 71: ...DS10xx Technical data 71 Dimensions expressed in millimeters Not full scale drawings 119 0 100 4 35 0 17 5 DS1044 DS1073 DS1048 DS1076 DS1078 DS1084 DS1087 DS1098 ...

Страница 72: ...gies Viale Ludovico Ariosto 492 D 50019 Sesto Fiorentino FIRENZE ITALY Tel 055 4207746 Fax 055 4207651 General information info lamtechnologies com Technical support support lamtechnologies com Sales information sales lamtechnologies com ...

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