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CONTROLLING LASER POWER

PAGE

Assist Gas

Typical Purpose

Specification

Air

Cutting/ Drilling

Breathing Grade > 99.9996% purity; filtered to ISO Class 1

particulate level

Air

Cutting/Drilling

Compressed Instrument-grade air filtered and dried to ISO 8573-

1:2010 Class 1, 2, 1 (< 10 1.0–

5.0 μm particles/m3; <

–40 °F dew

point; < 0.01 mg/m3 oil vapor)

Argon

Welding

High Purity Grade > 99.998% purity; filtered to ISO Class 1

particulate level

Helium

Welding

High Purity Grade > 99.997% purity; filtered to ISO Class 1

particulate level

Nitrogen

Cutting/Drilling

High Purity Grade > 99.9500% purity; filtered to ISO Class 1

particulate level

Oxygen

Cutting/Drilling

Ultra-Pure Grade > 99.9998% purity; filtered to ISO Class 1

particulate level

Controlling laser power

The control signals section includes subsections:

•

Control signals

•

Operating modes

Control signals

Much of the information provided in this section describes the use of a NOVANTA UC-2000 Universal

Laser Controller to provide PWM Command signals to the f201 laser. If using an alternate method of laser

control, thoroughly review this section, as well as the following section, User I/O connections, for an

understanding of the signal requirements necessary to control f201 lasers. For more information about the

UC-2000, please consult the UC-2000 Laser Controller Operator’s Manual.

Tickle pulse

Tickle pulses pre-ionize the laser gas to just below the lasing threshold so that a further increase in pulse

width adds enough energy to the plasma to cause laser emission. Tickle pulses cause the laser to respond

predictably and almost instantaneously to PWM Command signals, even when there is considerable delay

(laser off time) between applied Command signals. All F201 laser f201 lasers incorporate a built-in tickle

generator, freeing customers from the need to supply tickle pulses between lasing commands.
Internal circuitry monitors the incoming PWM signal and determines the amount of time the laser was on

(lasing) during the last 200 microsecond (

s) interval. If the lasers on time was greater than the preset

tickle value, then no tickle pulse is generated because the PWM signal was sufficient to maintain a plasma

state. If no PWM signal was applied during the 200-

s measurement period (or was shorter than the preset

tickle value), internal circuitry generates a tickle pulse such that the laser always receives a pre-set amount

of RF drive averaged over any 200-

s interval.

Содержание f201

Страница 1: ...ENGINEERED BY SYNRAD f201 Laser User Manual...

Страница 2: ...ting Started 10 Introduction 11 f201 Nomenclature 11 Unpacking 12 Incoming inspection 12 Packaging guidelines 12 Removing the lifting handles 14 Inventory 15 Nomenclature Continued 16 Mounting 17 Conn...

Страница 3: ...Technical Reference Summary 51 Technical overview 52 Laser tube 52 Optical resonator 53 Internal RF power supply 54 Optical setup 54 Controlling laser power 56 Operating modes 59 User I O connections...

Страница 4: ...e 2 4 Fastening the f201 from below 18 Figure 2 5 Detail of fastening into mounting surface 18 Figure 2 6 Fastening f201 from below 19 Table 2 Dew point temperatures 22 Figure 2 7 F201 cooling connect...

Страница 5: ...t specifications 67 Figure 4 8 Customer supplied interlock 68 Figure 4 9 Customer supplied interlock negative voltage 68 Figure 4 10 PLC driven interlock signal 69 Figure 4 11 Multiple PLC driven inpu...

Страница 6: ...Safety Labels DANGER Laser radiation can cause severe retinal and corneal burns burns on the skin and may pose a fire risk To avoid injury and reduce risk of fire please follow the control measures an...

Страница 7: ...nsulting this manual please contact one of our worldwide offices between 9 AM and 5 PM local time Americas Asia Pacific Novanta Headquarters Bedford USA Phone 1 781 266 5700 Email photonics novanta co...

Страница 8: ...failed parts back to NOVANTA for evaluation unless otherwise instructed If your f Series laser fails within the first 45 days after shipment NOVANTA will pay all shipping charges to and from NOVANTA...

Страница 9: ...liaison between you and our Applications Lab in processing material samples per your specifications To speak to the Regional Sales Manager in your area call NOVANTA at 1 800 NOVANTA1 Customer Service...

Страница 10: ...ong PRC 518057 Phone 86 755 8280 5395 Fax 86 755 8672 1125 E mail sales china Novanta com web www Novanta com Getting Started Use information in this section to prepare your f201 laser for operation T...

Страница 11: ...onsibility for meeting the appropriate laser safety requirements for Class 4 laser systems Single tube F201 laser f201 lasers contain a single tube optical resonator within the laser chassis These las...

Страница 12: ...s including covers and plugs Use these special ized packing materials when shipping the laser to another location When packing a laser for shipment be sure to remove all accessory items not originally...

Страница 13: ...e foam blocks cradling the top of the laser To remove the center block first slide it forward several inches and then lift 6 The laser is shipped with three lifting handles bolted to the mounting feet...

Страница 14: ...attachments Figure 2 2 Removing lifting handles 1 Locate the 8 mm hex wrench included with the accessory items 2 Remove the M10 1 5 metric cap screws from the three locations shown in the above figur...

Страница 15: ...INVENTORY PAGE 15 Inventory F201 Lasers Figure 2 3 f201 shipping box contents...

Страница 16: ...laser and back This black polyethylene tubing is 1 2 inch O D by 30 feet and must be cut to length Mounting Bolts Fasten our laser to your mounting surface F201 laser f201 lasers include three metric...

Страница 17: ...18 f201 2 Assemble three spherical washer sets as detailed in the Outline and Mounting drawing 3 Place the spherical washer sets over the threaded holes in your mounting surface 4 Carefully position t...

Страница 18: ...nting surface For SAE installations drill three 0 332 f201 holes into your mounting surface 2 Assemble three spherical washer sets as detailed in the outline and mounting drawing 3 Place the spherical...

Страница 19: ...PS 96 power supply connections Control connections Other connections Cooling connections Read Guidelines for cutting and installing tubing before installing any cooling tubing and then make sure to co...

Страница 20: ...ing tubing to your chiller s Inlet and Outlet ports Because F201 laser s cooling tubing is supplied in inch sizes do not use metric tubing fittings unless you have installed the appropriate inch to me...

Страница 21: ...e dew point of the surrounding air or when the system is shut down but coolant continues to flow through the laser for extended periods of time The chiller s temperature setpoint must always be set ab...

Страница 22: ...ir temperature and relative humidity values Remember that the laser s coolant temperature must be set above the dew point temperatures given in the chart however for best results and performance use a...

Страница 23: ...e no leaks 5 Locate the 1 2 inch O D cooling tubing in the Ship Kit and cut four lengths 12 18 inches long to fit partway between your chiller and the rear of the laser 6 Select two lengths of tubing...

Страница 24: ...DJUST THESE FITTINGS Each laser is shipped with a cooling kit that includes 90 push on tubing connectors to adapt the brass fittings to your choice of standard 1 2 inch or metric 12 mm cooling tubing...

Страница 25: ...t terminal block 4 4 On the lug end of the cable attach the two black wires with the 0 VDC marker to the negative 96 VDC output terminal on the DC power supply Tighten the terminal nut to a maximum to...

Страница 26: ...amage Do not plug and unplug the DC Power cable on the rear of the laser to switch DC power to the laser Switching power under load causes arcing that will damage the connector and control board To pr...

Страница 27: ...ingle phase input wiring and fusing Single phase operation Table 2 5 Single phase AC electrical recommendations Parameter Recommendation Input voltage 208 264 VAC 1 Input current max 20 Amperes Wire g...

Страница 28: ...k to the input terminal labeled L2 L 6 Connect the return neutral wire from circuit 2 typically white to the input terminal labeled Control connections All control connections to F201 laser f201 laser...

Страница 29: ...Quick Start Plug included in the ship kit has factory installed shorting jumpers wired into it to enable these inputs Connect the Quick Start Plug to the User I O connector when performing initial st...

Страница 30: ...t a flow rate of 0 85 1 7 m3 hr 30 60 SCFH Standard Cubic Feet per Hour at a pressure not to exceed 34 5 kPa 5 PSI The Gas Purge connector on your f201 laser must be connected to a source of nitrogen...

Страница 31: ...arning Serious Personal Injury is Class 4 CO2 laser product emits invisible infrared laser radiation in the 9 3 10 6 m wavelength band Because direct or diffuse laser radiation can inflict severe corn...

Страница 32: ...ollowing are descriptions of general hazards and unsafe practices that could result in death severe injury or product damage Specific warnings and cautions not appearing in this section are found thro...

Страница 33: ...or potentially explosive atmospheres Materials processing with a laser can generate air contaminants such as vapors fumes and or particles that may be noxious toxic or even fatal Material Safety Data...

Страница 34: ...ifting or moving the unit B risk of exposure to hazardous laser energy through unauthorized removal of access panels doors or protective barriers C risk of exposure to hazardous laser energy and injur...

Страница 35: ...that each lens or mirror does not contain more than 10 percent by weight thorium or uranium or for lenses manufactured before August 27 2013 30 percent by weight of thorium and that the exemption con...

Страница 36: ...F201 LABEL LOCATIONS PAGE 36 f201 label locations Figure 3 1 100 hazard label locations...

Страница 37: ...F201 LABEL LOCATIONS CONTINUED PAGE 37 f201 label locations continued Figure 3 2 F 200 hazard label locations...

Страница 38: ...F201 LABEL LOCATIONS CONTINUED PAGE 38 f201 label locations continued Figure 3 3 F 201 hazard label locations...

Страница 39: ...the compliance of the system into which OEM laser products are integrated Center for Devices and Radiological Health CDRH requirements Product features incorporated into the design of f201 lasers to...

Страница 40: ...e user Important Note The following FCC information to the user is provided to comply with the requirements of 47 CFR Part 18 Section 213 Interference Potential In our testing NOVANTA has not discover...

Страница 41: ...e the final product will itself be subject to the Standard This means that Buyers of OEM laser components are solely responsible for the assurance that the laser processing system sold to an end user...

Страница 42: ...wer applied and is capable of lasing Yes Yes Yes Laser Indicator Rear panel indicator Red Indicates that p100 150 is actively lasing Lase LED illuminates when the duty cycle of the command cycle is lo...

Страница 43: ...obtain the CE mark To aid this compliance process NOVANTA testing program has demonstrated that f201 lasers comply with the relevant requirements of 2014 30 EU the Electromagnetic Compatibility Direc...

Страница 44: ...COMPLIANCE PAGE 44 Figure 3 4 f201 Declaration Document...

Страница 45: ...COMPLIANCE PAGE 45 Figure 3 5 continued F201 Declaration Document...

Страница 46: ...tissue Always be aware of the beam s path and always use a beam block while testing Warning Serious Personal Injury On f201 OEM lasers remote interlock faults are not latched Clearing the fault condi...

Страница 47: ...mounting optional beam delivery components available from NOVANTA Because excessive weight may damage the laser consult NOVANTA before mounting components not specifically designed as F201 laser op ti...

Страница 48: ...ture rises above safe operating limits 9 Ready Indicator illuminates yellow when the laser is enabled indicating that after a five second delay lasing will begin when a PWM Command signal is applied 1...

Страница 49: ...the work area 4 Turn on the chiller and set the temperature setpoint between 18 C 22 C Verify that the chiller is delivering the recommended flow rate for your laser at less than 414 kPa 60 PSI of pr...

Страница 50: ...as purge flow to the laser In dirty or dusty environments however it may be necessary to purge the laser continuously to prevent contamination of internal optics Important Note If your f201 laser fail...

Страница 51: ...low at a rate of 0 85 1 7 m3 hr 30 60 SCFH Standard Cubic Feet per Hour at a pressure not to exceed 34 5 kPa 5 PSI If a flowmeter is not available set a purge pressure be tween 13 8 34 5 kPa 2 5 PSI 7...

Страница 52: ...laser capable of operating for many years with virtually no maintenance F201 laser s unique extruded aluminum envelope offers excellent heat transfer long gas life and low operating costs in contrast...

Страница 53: ...put beam roughly square as it exits the telescope transitions to Gaussian like in mid and far fields three meters and beyond The internal structure and optics of the resonator combine to produce a Gau...

Страница 54: ...Start Request input Optical setup After selecting a CO2 laser for your processing system the two most important elements to consider are 1 delivery optics to transmit the beam to the work area and 2...

Страница 55: ...consideration should be material thickness and any vertical tolerances that occur during final part positioning rather than selecting based only on minimum spot size The chosen focal length should cre...

Страница 56: ...ection User I O connections for an understanding of the signal requirements necessary to control f201 lasers For more information about the UC 2000 please consult the UC 2000 Laser Controller Operator...

Страница 57: ...F201 laser f201 waveforms f201 lasers are designed to operate at Command signal base frequencies up to 100 kHz however the choice of PWM frequency depends on the user s specific application In the ma...

Страница 58: ...200 s Maximum PWM frequency is 100 kHz The third Command signal parameter PWM duty cycle is the percentage of the period that the Command signal is high If the Command signal s amplitude at 5 kHz is h...

Страница 59: ...n control both laser gating and power To generate the correct analog voltage from a computer or PLC a Digital to Analog D A or DAC card capable of generating 0 V laser off to 10 V maximum laser power...

Страница 60: ...oseconds less than or equal to 5 kHz F201 laser s on board tickle generator sends a tickle pulse to maintain plasma ionization in the tube Because the on board tickle generator cannot anticipate when...

Страница 61: ...ions section includes subsections User I O connection summary Input output signals Sample I O circuits I O connections User I O connection summary Table below provides a quick reference summary to F20...

Страница 62: ...ser I O 15 pin female D type subminiature connector on F201 laser s rear panel Auxiliary DC power F201 laser s User I O connector provides auxiliary DC power for driving external inputs or outputs con...

Страница 63: ...f resetting fuse The return ground path must be through Pin 12 Auxiliary DC Power Ground Pin 12 Auxiliary DC Power Ground This connection provides a ground earth connection for 5 and 24 VDC auxiliary...

Страница 64: ...et action initiates a five second delay after which lasing is enabled To prevent operator injury when using Keyswitch equipped lasers the Remote Reset Start Request signal is ignored when the Keyswitc...

Страница 65: ...wer supply has stabilized approximately 200 ms after DC power up Figure 4 8 Input equivalent schematic Warning Serious Personal Injury The use of the Quick Start Plug bypasses the laser s safety inter...

Страница 66: ...s denote separate control functions The Laser Ready output Ready LED On may close while the Shutter Open output is open Shutter LED Off but the RF driver is disabled until both Laser Ready and Shutter...

Страница 67: ...t signal is present Shutter LED blue indicating that lasing may be enabled if other operating conditions are met The output is open high impedance when the Shutter Switch is Closed or the Shutter Open...

Страница 68: ...uit Note that Pin 4 5 VDC Auxiliary Power could have been used instead depending on circuit voltage requirements Figure 4 8 Customer supplied interlock Figure below shows another variation for supplyi...

Страница 69: ...when only one F201 laser input is used Figure 4 10 PLC driven interlock signal When multiple PLC outputs are used connect F201 laser inputs to the PLC as shown in Figure below By supplying voltage VDC...

Страница 70: ...ary Power output Remember to size current limiting resistor R1 so that the current draw does not exceed 50 mA Figure 4 12 F201 laser output driving warning lamp Figure below illustrates a method for c...

Страница 71: ...s outputs can drive the DC Input Module of a Programmable Logic Controller PLC By supplying voltage VDC to Pin 13 Output Common each F201 laser output is inde pendently switched to activate individua...

Страница 72: ...h 12 AWG wire however DC input current is split between two positive and two negative conductors F201 laser f201 DC Power cables are available in 5 meter 16 4 ft and 7 m 23 ft lengths The standard len...

Страница 73: ...are reset by removing and then re applying DC power after the laser has cooled Re mote interlock faults are not latched the Ready LED illuminates yellow as soon as the interlock circuit is closed when...

Страница 74: ...input signal on Pin 3 of the User I O connector To use F201 laser s remote interlock feature apply a voltage in the range of 5 24 VDC to Pin 3 Remote Interlock Applying an interlock signal causes the...

Страница 75: ...6 and 7 on the DB 9 Connector To use this remote reset functionality open and then close a dry circuit zero voltage switch or relay contact between Pin 6 Remote Keyswitch Input and Pin 7 Remote Keysw...

Страница 76: ...INTEGRATING F201 SAFETY FEATURES PAGE 76 Figure 4 15 F201 packaging diagram...

Страница 77: ...F201 GENERAL SPECIFICATIONS PAGE 77 f201 general specifications Table 4 8 f201 general specifications...

Страница 78: ...F201 GENERAL SPECIFICATIONS PAGE 78 Table 4 9 f201 general specifications continued...

Страница 79: ...set below the dew point temperature Condensation will damage electrical and optical components inside the laser See Setting coolant temperature in the Getting Started chapter for details on preventing...

Страница 80: ...A Customer Service about purchasing replacement packaging Refer to Packaging instructions in the Technical Reference chapter for detailed instructions on properly packaging the laser for shipment Impo...

Страница 81: ...d Material Safety Data Sheets MSDS and observe all necessary safety precautions Caution Possible Equipment Damage Because of their smaller beam diameter F201 laser lasers have significantly higher pow...

Страница 82: ...ing Acetone moderately aggressive is best for oily residue or minor baked on vapors and debris 5 Gently and without applying pressure drag the damp lens wipe across the optical surface in a single pas...

Страница 83: ...Before you attempt to perform any service we advise you to read the entire troubleshooting guide and review the relevant schematic diagrams Symptoms and possible causes are highlighted by dark print a...

Страница 84: ...onal Injury This Class 4 laser product emits invisible infrared laser radiation in the 10 6 m CO2 wavelength band Because exposure to direct or diffuse laser radiation can inflict severe corneal injur...

Страница 85: ...OPERATIONAL FLOW CHART PAGE 85 Operational flow chart The flowchart in the figure below illustrates f201 s start up sequence Figure 5 1 Operational flowchart...

Страница 86: ...FUNCTIONAL BLOCK DIAGRAM PAGE 86 Functional block diagram Figure below is a functional block diagram illustrating the f201 s control architecture Figure 5 2 f201 functional block diagram...

Страница 87: ...duce laser output the Lase LED illuminates red On OEM lasers the Ready lamp illuminates on DC power up when Remote Interlock and Temp indicators illuminate green After the Ready indicator illuminates...

Страница 88: ...hanges when remote interlock over temperature or shutter closed conditions occur fault conditions are shown in bold type Table 5 3 Normal operating condition Table 5 4 Quick Start Plug or interlock sh...

Страница 89: ...STATUS LEDS PAGE 89 Table 5 6 Over Temperature fault Table 5 7 Shutter closed condition Table 5 8 VSWR fault...

Страница 90: ...asers re establish the Remote Interlock signal input Remote Interlock LED changes from red to green and cycle the Keyswitch from OFF RESET to ON or apply a 5 24 VDC Remote Reset Start Request pulse wi...

Страница 91: ...t lower coolant temperature below 28 C f201 to cool the laser and then cycle DC power to the laser Once the Temp indicator is green and the Ready lamp is lit lasing is possible after the five second d...

Страница 92: ...his fault is annunciated by the Shutter LED flashing continuously until the fault disappears If a VSWR fault occurs the VSWR circuit limits the maximum PWM pulse length to 12 microseconds s This equat...

Страница 93: ...w meter is not available is to disconnect the cooling tubing from the chiller inlet or the drain and run the cooling water for one minute into a five gallon bucket you should have close to the number...

Страница 94: ...f an over temperature condition occurs the Temp indicator will turn red the Over Temperature output will Close the Ready light goes out and lasing is disabled Because of its latched condition the Temp...

Страница 95: ...es The 20 A fast acting fuse has blown Remove DC power from the laser and then check each fuse on the rear panel Replace as required using only a Bussman ABC 20 or equivalent Symptom There is no outpu...

Страница 96: ...Gas Purge connector Purging the laser creates a positive pressure inside the laser housing that prevents dirt and debris from accumulating on optical surfaces including beam combiner telescope and tur...

Страница 97: ...Refer to Table 4 1 Assist gas purity specifications in the Technical Reference chapter for a list of common assist gases and their corresponding filtering and drying specifications Danger Serious Per...

Страница 98: ...108 pin description 74 B Beam block 55 58 Beam characteristics 65 Beam delivery optics troubleshooting 109 110 111 Block diagram 100 BNC Control cable 31 C Caution condensation 57 59 condensation dam...

Страница 99: ...ection 44 specifications 44 46 DC Power cable 31 44 94 connecting 42 44 disconnecting 44 DC Power connector 43 44 53 DC power supply 41 requirements 41 Delivery optics 66 Dew point chart 38 Diode Poin...

Страница 100: ...terlock Open output 101 106 107 108 109 Inventory f100 f201 lasers 29 f100 f201 ship kit contents 31 K Keyswitch 55 58 59 108 Keyswitch functions integrating 87 Keyswitch 101 L Label locations 15 16 1...

Страница 101: ...ignals 79 Interlock Open 80 106 107 108 109 Laser Active 106 107 108 109 Laser Ready 79 106 107 108 109 Output Common 80 Over Temperature 79 106 107 108 109 Shutter Open 80 106 107 108 109 Over Temper...

Страница 102: ...dicator 56 58 101 Shutter Open 80 pin description 80 Shutter Open output 101 106 107 108 109 Shutter Open Request 77 Shutter Open request input 65 Shutter Open Request input 49 55 57 87 101 Shutter Op...

Страница 103: ...tions 73 74 input output signals 73 sample input circuits 81 sample I O circuits 81 sample output circuits 83 User I O connector 48 49 54 55 57 70 87 101 108 W Warning laser output 49 50 56 58 60 68 6...

Страница 104: ...INDEX PAGE 1 This page is intentionally left blank...

Страница 105: ...Engineered by Synrad part of Novanta Novanta Headquarters Bedford USA Phone 1 781 266 5700 Email photonics novanta com Revision X August 2022 2022 Novanta Corporation All rights reserved...

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