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User Manual eDrive/eDrive Nitro/eDrive Aero Laser Diode Driver

1. Channel 1 16 actively driving the array output in either CW or QCW modes See Standby Active Current Current below Units amps A Range 0 to 1 000 LSB value 0 1A Channel 1 This value represents the current level for channel 1 when the eDrive is in Standby Current 17 standby CW or QCW mode or during the inactive portion of the QCW pulse Units amps A Range 0 to 1 000 LSB value 0 1A Channel 1P ulse This value represents the width of a current pulse for channel 1 Itis only Width High 18 used when the channel is in QCW mode Range 10 to 100 000 limited by the system frequency to prevent the pulse width from exceeding the period LSB value 0 115 Channel 1 Pulse 19 For this value to be properly written write to the high word first followed by Width Low he low word This value represents the delay of the current pulse of channel 1 relative to Channel 1 Pulse 20 he trigger Itis only used when the channel is in QCW mode Delay High Range 1to 100 000 LSB value 1s When using internal triggering the range is limited by the system frequency So the pulse ends before the start of the nexttrigger When using external Channel 1 Pulse 21 riggering all external trigger events are ignored during an active pulse Delay Low Forthis value to be properly written write to the high word first followed by he low word Channel 1 Slew 2 This value represents the slew rate for channel 1 Rate Range
2. 202 10us div 34 eDrive User Manual Operating Basics In the second figure the eDrive has been set to slew rate limit control This feature limits the rise time to 40 6 for configurations where special wiring or routing are not options Note that the current waveform overshoots the target of 70A but the amount of overshoot has been significantly reduced 204 0 10usidiv eDrive User Manual 35 Operating Basics 36 Waveform Characteristics and Controlled Hookup Wire The figure below is an oscillogram montage showing the characteristics of a current pulse waveform with varying supply voltages The load is 14 bar array The eDrive is specially configured at the factory for very fast rise time operation Consult factory for ordering information It is set to deliver a 70A pulse to the load 204 div Sus div The oscilloscope is set for 20A div vertically and 5 0us div horizontally The hookup wire connecting the eDrive to the array is eDrive User Manual Operating Basics over 6m long and consists of very low inductance Litz wire The external loop area of the current path is well controlled and estimated to be approximately 0 002 m Note the change in the waveform characteristics as the voltage is increased At the final setting the voltage is 14 16V over the array voltage but the rise time is only approximately 4us These oscillograms demonstrate the importance of properly adjusting
3. r cooled r cooled Duty Cycle 01 20 eDrive User Manual Understanding Driver Functions eDrive 300A In this configuration the typical minimum rise time is approximately 35us Its current vs duty cycle operating regions are shown in the figure below Note that these numbers are maximum recommended operating limits Your eDrive may achieve better performance but damage may occur WARNING These charts provides the maximum operating limits of the eDrive Do not operate the eDrive outside of these limits or damage may occur eDrive Duty Cycle Current A Duty Cycle Duty Cycle 001 eDrive User Manual 21 Understanding Driver Functions 22 eDrive User Manual Operating Basics This chapter describes basic operation of your eDrive laser system controller In this chapter you will learn how to Power your eDrive on and off Use the selection knob Navigate the menu systems Connect and test proper chiller operation Set your eDrive to CW or QCW operation Use your eDrive Aero fiber pump source Set operating limits of array current amplitude and duty cycle Set your array power supply Control and improve pulse waveform characteristics Maximize output operating limits Configure the integrated AO Q switch RF driver Connect an external Q switch driver Powering the eDrive on and off Be sure
4. Firmware lUerzion 1 2 8 Warrants Timer 25 H 52 Hin Channel 1 Status Current 15 Temp 2C FS Voltage 25 51 Channel 1 Status Run Time 18 14 Power Cycles 13 Hore Channel 1 Status Pulsed Shot Count Electronic 4329 eDrive User Manual 117 User Interface Quick Menus 118 The eDrive has a feature called Quick Menus that allow most of the functions to be disabled but provides access to the key features of the eDrive To switch Quick Menus on and off press and hold MENU for three seconds until the display changes In Quick Menus the configuration of the eDrive is not available If the eDrive was configured for CW operation then the CW Quick Menus will be displayed If the eDrive was configured for QCW or pulsed operation then the pulsed Quick Menus will be displayed In Quick Menus the gt 4 symbols indicate the parameter that will be modified with the selection knob To switch between fine and course adjustment of the selected parameter press and hold the selection knob until the selection symbols change Fine adjustment is indicated by gt 4 coarse adjustment is indicated by gt gt 44 Some parameters may have three levels eDrive User Manual User Interface CW Quick Menus This is display 1 of the CW mode Quick Menus Use the selection knob to adjust the current amplitude
5. a a ne eese bee hE 76 Current asec PG ae eh Eile Ee TH Shutter Button and Indicator eese nnn TT Emission Button and Indicator seen TT Selection eR 78 Uii eR 78 Emergency Stop S with iioi He eroe 79 STANDARD MENUS trn 80 B nnetr o ee Re e eee re er etsium 80 Siete neret 80 eDrive User Manual lii Table of Contents Channel Set p c ee bep P tenerte eee 81 Tnggering Gating a econtra ERR eerie th 104 Communications 105 Interface Setup etit PIDE rre ERR SER ehe 111 Utility Functions neo enne eee 112 QUICK MENUS 55 5 eet eti toe RR Ore P ee 118 CW Quick Menus ensi eee MR 119 Pulse mode Quick Menus 120 CURRENT MONITOR 2 4 0 400000 0000000000000000000800 rennen nene 122 ERROR DISPLAYS e nete de e rtt rece Eee repetir 123 APPENDIX A SPECIFICATIONS eee eee ee ee eee 125 OPERATIONAL SPECIFICATIONS 9 125 MISCELLANEOUS 8 0 126 ELECTRICAL SPECIFICATIONS 127 EDRIVE ME
6. 36 Waveform Characteristics and Standby Current 2222212 37 CONFIGURING THE INTEGRATED AO Q SWITCH RF DRIVER 38 38 FES Parameters eros trei te verre 39 FPS Power Control esee nennen nemen nene ene 41 FPS Modulation Type ettet retten egenis 41 CONNECTING AN EXTERNAL Q SWITCH 42 APPLICATION EXAMPLES eee ee eren ee 43 CONTROLLING AN EDRIVE WITH A COMPUTER eee eene 44 Port ooo ee etii ee to hs 44 Using the Ethernet Interface 44 CONFIGURING A LASER TO WORK WITH EDRIVE 46 eDEING 46 ii eDrive User Manual Table of Contents eDrive Nitro and nemen nene 46 COMMUNICATIONS 2555050 47 COMMUNICATIONS OVERVIEW 2 2 4 2 01 0000000000000000000000000000000 47 SERIAL PORT CONFIGURATION 1 49 SERIAL MESSAGE FRAMING ccce nennen 49 SERIAL FRAMING ERRORS 4000 0 1 eene nnns sees 50 ETHERNET PORT 2 1 2022000000000 0000000000000000000 en 52 DHGB zr eae instet etm t e lav bv ak
7. Present Walue Eun Rotate Dial to Select Baud Rate ione eDrive User Manual 105 User Interface Press Set Bit Frame 252 Channel Setur Menu Set Set Set Set Baud Rate Bit Frame Function Address Use the selection knob to set the value Select from 8N1 801 8 8N2 Refer to the chapter Communications for details on bit frame Press Done to enter the value Set 5 252 Channel amp Bit Frame Present Rotate Dial to Select Bit Frame ione Press Set Function 252 Channel Setur Meru Set Set Set Set Baud Rate Bit Frame Function Address Use the selection knob to set the value Select from None Modbus Loopback Press Done to enter the value Set 5 252 Channel 8 Function Present Walue Rotate Dial to Select Function ione 106 eDrive User Manual User Interface Press Set Address 252 Channel Setur Menu Set Set Set Set Baud Rate Bit Frame Function Address Use the selection knob to set the value Refer to the chapter Communications for details on port address Press Done to enter the value Set RE Z32 Channel amp Port Address Present 15 Rotate Dial to Select Baud Rate ione eDrive User Manual 107 User Interface Press Ethernet Setup to configure the Ethernet interface parameters Ask your network system administrator
8. Isense gt Tl set 4 17 58 17 58 Active State Hore Press the selection knob to change adjustment sensitivity Press More to switch to CW mode display 2 Chi Isense Izet 17 58 17 58 Active State This is display 2 of the CW mode Quick Menus Note that there are settable parameters on this display Press More to switch to CW mode display 3 Chi Lserze Active Time TZ 47 zur Active State Hore This is display 3 of the CW mode Quick Menus This display may not be present if the Q switch has been disabled Press or gt to switch between parameters Press More to switch to return to display 1 i 5uitch Frea 56 Active State amp gt Hore eDrive User Manual 119 User Interface Pulse mode Quick Menus This is display 1 of the pulse mode Quick Menus Use the selection knob to adjust the current amplitude Chit Isense Izet Frea 17 58 58 18 Gus Active Stabe gt Hore Press the selection knob to change adjustment sensitivity Chi Isense Iset Frea 17 58 17 58 18 Gus Active State gt Hore Press lt or gt to switch between parameters Chi Isense Iset gt Frea 17 58 17 58 16 Gu Active State
9. Press to access additional options Channel 1 Pulsed Setur enu Set Set Set Pulse Duta Freauenca Width Limit Press Set Standby Current to set the standby current eDrive User Manual 87 User Interface 88 Channel 1 Pulsed Setur Menu Set Set Set Stande Current Pulse Current Limit Delas Hore eDrive User Manual User Interface Use the selection knob to set the value Press Done to enter the value Set Channel 1 Standby Current Present Walue 5 Rotate Dial to Change 1 Press Set Current Limit to set the current limit value Channel 1 Pulsed Setur Menu Set Set Set Stande Current Pulse Current Limit Delas Hore A Use the selection knob to set the value Press Done to enter the value Set Channel 1 Current Limit Present 28 Rotate Dial to Change 1 Press Set Pulse Delay to set the delay from the trigger to the pulse Channel 1 Pulsed Setup enu Set Set Set Stand Current Pulse Current Limit Delas Use the selection knob to set the value Press Done to enter the value Set Channel 1 Pulse Delays Present Walue ous Rotate Dial to Change 1 ione eDrive User Manual 89 User Interface Press More to access additional options Channel 1 Pul
10. Set Channel 1 Present Rotate Dial to Change Value Fresuercs 1 66 kHz 1 Press Set Pulse Width to set the pulse width of the current pulse Channel 1 Pulsed Setur Meru Set Set Set Pulse Duta Fresuerncs Width Limit Hore 86 eDrive User Manual User Interface Use the selection knob to set the value Press Done to enter the value Set Channel 1 Pulse Width Present 280 8 uz Rotate Dial to Change 1 CEO recommends the use of a current probe and current monitor output to verify the output pulse width matches the commanded value Some difference is normal depending on the load The current monitor output is located on the back panel See section Getting Started page 4 Use the PW offset menu option to match the actual PW to the commanded value if desired See menu options on page 89 Press Set Duty Cycle Limit to set a limit on the duty cycle of the pulse rate frequency PRF of the current pulse The duty cycle is the ratio of on time to off time of the pulse train Channel 1 Pulsed Setur Meru Set Set Set Pulse Duta Freauenca Width Limit More Use the selection knob to set the value Press Done to enter the value Set Channel 1 Duta Limit Present zu Rotate lal to Change 1 1
11. H E NENNEN B EH mum HE 122 eDrive User Manual User Interface Error Displays The eDrive will display error messages when a fault occurs This section outlines those displays This display appears when the emergency stop switch or user interlock is activated Correct the fault and then press Clear XXX HARDWARE FAULT DETECTED PLEASE EMERGEHCY STOP OF HARDWARE INTERLOCK Clear This display appears when the chiller interface connector coolant flow interlock faults Correct the fault and then press Clear CHILLER FAULT DETECTED FLOW IHTERLOCE FAULT Clear This display appears when the chiller interface connector coolant level interlock faults Correct the fault and then press Clear CHILLER FAULT DETECTED Xxx LEVEL INTERLOCK FAULT Clear eDrive User Manual 123 User Interface 124 This display appears when the Q switch interface connector fault signal is asserted eDrive only The state of the signal that triggers the fault is set by the menus Correct the fault and then press Clear If you cannot clear the fault at the connector interface power the eDrive off and then on to restore normal operation FAULT DETECTED Clear This display appears when one of the internal Q switch fault s
12. When in contrast adjustment mode use the rotary encoder to change the contrast and press any key to exit Note that the system may 112 eDrive User Manual User Interface prompt you to exit standby or active mode in order to enter contrast adjust mode Press Done when adjustment is complete Contrast Bdiustment Rotate Dial to Change Contrast Level Select whether the eDrive should produce a periodic audible beep when current is flowing to the laser as a safety reminder System Menu Audible Restore Click Adjust Warning Factora Enabled Contrast Enabled Defaults Select Restore Factory Defaults to return your eDrive to its factory configuration NOTE Selecting this option will cause the eDrive to lose all of the setup parameters previously set Be sure to record your configuration before restoring factory defaults System Orbions Menu Audible Restore Click Adjust Factora Enabled Contrast Enabled Defaults Return to the Utility Functions Menu and press System Status Utilita Functions Meru System Sys Ler rtiorns Status Press Sys Ctrl Note Only eDrive Nitro drivers have expansion modules eDrive User Manual 113 User Interface System Status Meru Sus Ctrl Exranzion Channel 1 The eDrive will present consecutive screens of system information Press More rep
13. 4 gt Press More to switch to pulse mode display 2 Chi Isense Izet 4 58 58 18 Gus Active State gt Hore 120 eDrive User Manual User Interface This is display 2 of the pulse mode Quick Menus Note that there are no settable parameters on this display Press More to switch to pulse mode display 3 Chi Pulses TZ Sac Active State This is display 3 of the pulse mode Quick Menus This display may not be present if the Q switch has been disabled Press More to switch to return to display 1 eDrive User Manual Q Switch OFF Set 4 156 Bus 58 Active State gt Hore 121 User Interface Current Monitor Menu This convenient menu brings the quick access feature of the Quick Menus to the Standard Menus system This mode is accessed by pressing CURRENT and is only accessible while in Standard Menus mode Refer to the Quick Menus section for operation of these menus Current I sense Izet Frea Chi 5A 5A Sua Hz Active State lt gt Press MENU to return to the standard menus or press CURRENT again to enter the large current display This mode assists in viewing the driver current from a distance Current Iset NEN Chi 17 5 a Eum
14. Appendix B Connector Interfaces Ethernet This connector provides an Ethernet interface to connect the eDrive to a network This interface is only supported when the network support option is purchased Use a standard straight through Ethernet cable EIA TIA 568A for connection to a hub or a standard cross over cable EIA TIA 568B for connection directly to a PC 12345678 Connector type RJ 45 Pin Name Type 1 Transmit Data 4 10 2 Transmit Data 10 3 Receive Data 10 4 Unused 5 Unused 6 Receive Data 10 1 Unused 8 Unused eDrive User Manual 147 Appendix B Connector Interfaces Power Lugs select models only 148 The power lugs are used to connect the eDrive to the external power supply and the laser diode array To connect leads to these lugs use 0 25 inch mounting hardware with either ring tongue terminals or two hole compression lugs See Getting Started for tips on using these lugs CAUTION Electrical shock hazard These power lugs can expose dangerous levels of electrical power Do not touch these terminals unless the eDrive is removed from its power source Damage to equipment may result Damage to personnel may result including death eDrive User Manual Appendix B Connector Interfaces Array Output Connector select models only The eDrive may be ordered with an optional circular array power output connector This connector provides an alternate mea
15. Channel 2 Temp 58 OFF Channel 2 does not have a temperature fault Fault ON Channel 2 has a temperature fault Channel 3 Off 64 OFF Channel 3 is not in the Off State State ON Channel 3 is in the Off State Channel 3 65 OFF Channel 3 is not in the Standby State Standby ON Channel 3 is in the Standby State Channel 3 66 OFF Channel 3 is not in the Active State Active ON Channel 3 is in the Active State Channel 3 Fault 67 OFF Channel 3 is not in the Fault State State ON Channel 3 is in the Fault State Channel 3 State 68 OFF Channel 3 state does not have a fault Mismatch Faul ON Channel 3 state has a fault Channel 3 69 OFF Channel 3 processor communication is good Comm Fault ON Channel 3 processor stopped communicating with the system Channel 3 70 OFF Channel 3 does not have a hardware fault Hardware Faul ON Channel 3 has a hardware fault Channel 3 n OFF Channel 3 is not on the emergency stop state E Stop Fault ON Channel 3 is on the emergency stop state OFF Channel 3 processor communication is good ue ON Channel 3 has a fault due to slow communications Fault Channel 3 n OFF Channel 3 does not have an interlock fault Interlock Fault ON Channel 3 has an interlock fault Channel 3 Temp 7 OFF Channel 3 does not have a temperature fault Fault ON 3 has a temperature fault eDrive User Manual 67 Communications Read Write Registers The
16. For details on the protocol refer to the chapter Communications For details on setting the serial port configuration refer to the chapter User Interface Reference When setting up the system you may want to use the loop back mode of the eDrive serial port to verify proper hardware setup In this mode the eDrive serial port simply echoes all data it receives This can be helpful in determining that you have a properly connected serial link and eliminates the added layer of complexity that the communications protocol requires Using the Ethernet Interface To set up an automated control system with a networked PC using the Ethernet interface connect the eDrive to the same network the PC is on using a standard Ethernet cable type EIA TIA 568A see 88 019 10 in Accessories Connect the eDrive to the network just as you would a PC using a hub or switch Note that it is possible to connect the eDrive to a PC directly using Ethernet but you will require a special cross over cable For details on setting the Ethernet interface configuration refer to the chapter User Interface Reference When using Ethernet you must have an IP address available for the eDrive This can be assigned automatically by a DHCP server on the network or you may assign one manually You will need to have an IP address and subnet mask for the eDrive and a gateway address Check with your network administrator for help with these parameters 44 eDrive User Man
17. cep T 147 POWER LUGS SELECT MODELS ONLY eese enne enne enn 148 ARRAY OUTPUT CONNECTOR SELECT MODELS 149 AC POWER 150 APPENDIX C ACCESSORIES eee ee ee ee eee teet eee ee 151 STANDARD ACCESSORIES 0 3 74 6 8 4840 151 OPTIONAL 55 6 2 152 APPENDIX D GENERAL CARE AND CLEANING ee eeennee 155 GENERAL 155 CEEANING eee ee e 155 APPENDIX CALCULATIONS eese eee eene eese eno 157 OVERVIEW eee eet ere eot ee eere eee ee eed dre ete 157 PROCEDURAL 0 0 158 159 CODE EXAMPLE 160 224644845456 065666 0006106 656 OEE AAA 161 eDrive User Manual V Table of Contents vi eDrive User Manual General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it To avoid potential hazards use this product only as specified If the Equipment is used in a manner not specified by Northrop Grumman Cutting Edge Optronics the protection provided by the eDrive equipm
18. panels vii parameters triggering and gating 15 performance 31 ping 45 plastic adjustment tool 30 power dissipation 19 modulation 97 165 Index source 7 power control button 76 power cord vii 7 power lugs 148 power output 149 power supply external 27 internal 29 setting 27 varying voltage 36 power supply voltage 19 27 varying 36 power train 17 powering the eDrive on and off 23 PRF 18 protocol identifier 52 pulse shot count 118 pulse capacitor 33 pulse rate 125 126 128 pulse rate frequency 18 pulse suppression 38 pulse waveform characteristics 31 pulse waveform quality 10 pulse width 18 125 126 128 PW 18 Python 160 Q q switch driver interface 141 external driver 42 fault menu 125 interlock interface 142 RF driver 38 RF power 39 signals 42 trigger frequency 39 window width 39 q switch thermal interlock 9 quick menus 77 119 166 R rack mounting 7 rails 8 range 125 126 128 read write bits 63 read write registers 68 read only bits 65 read only registers 71 rear panel eDrive 4 eDrive Aero 6 eDrive Nitro 6 rear panel power control switch 23 recycling xi remote control 44 RF driver 38 RF output interface 142 ring tongue terminals 148 rising edge 34 RoHS xi RS 232 47 135 RS 485 47 137 S safety vii sales support xii scale changing 24 selection knob 24 78 changing scale 78 serial cable 44 serial framing e
19. The following table lists all read only bits defined in the eDrive Any bit addresses that are not in the list are reserved and should not be used These data elements are accessible using function 02 Name Addr Description OFF z The eDrive is notin the Faulted State Fault State 0 ON The eDrive is in the Faulted State OFF The eDrive is notin the Off State Off State 1 ON The eDrive is in the Off State OFF z The eDrive is not in the Standby State Standby State 2 ON The eDrive is in the Standby State Pre Fire State 3 OFF The eDrive is not in the Pre Fire state ON The eDrive is in the Pre Fire state 5 OFF eDrive is the Active state Active State 1 ON eDrive is the Active state Channel 1 5 OFF Current Control hardware for channel 1 is not present Present ON Current Control hardware for channel 1 is present Channel 2 6 OFF Current Control hardware for channel 2 is not present Present ON Current Control hardware for channel 2 is present Channel 3 OFF Current Control hardware for channel 3 is not present Present ON Current Control hardware for channel 3 is present Chiller Flow 8 OFF The chiller does not have a flow fault Fault ON The chiller has flow fault Chiller Level 9 OFF The chiller does not have a level fault Fault ON The chiller has a Level fault Emergency Stop 10 OFF z The emergency stop button is not pressed
20. Q SWITCH TRIGGER Jl eDrive User Manual Understanding Driver Functions Power Train The heart of the eDrive is a high performance current regulator This regulator provides stable current levels during operation and also switches the current on and off during pulsed mode operation The power provided to the current regulator can be an external source as in the case of a 2U eDrive and some 4U eDrives or an internal source as in the case of some 4U eDrives When the power is provided internally it is sourced from one or two power modules that together provide the needed levels of voltage and current This raw power is delivered to the output through the Array Interface Module AIM of the eDrive When the eDrive model includes integral power supplies the power input terminals typically are removed See figure Array Interface o Module Power Module 1 Input Bulk Output Terminals Capacitor Terminals Power Module 2 In order to provide current regulation some voltage must be dropped across the AIM This necessitates that the power supply voltage be marginally higher than the expected output voltage The magnitude of that margin depends upon the expected current load of the output Refer to the section Operating Basics for details on properly setting the power supply voltage When operating a pulsed mode eDrive the average current delivered from t
21. 152 eDrive User Manual Appendix C Accessories 88 014 10 Bypass Connector Kit eDrive Nitro Use to bypass unused laser interface connector interlocks Includes one laser interface interlock bypass connector 88 016 10 Rack Mounting Kit Recommended for mounting the eDrive series drivers into a standard EIA 310D equipment rack Includes two mounting rails and mounting hardware 88 019 10 Cable Kit 1 Includes one 10 foot long BNC interlock cable e one 10 foot long 2 pin interlock cable e 10 foot long 10AWG array attachment cable with two hole compression lugs on the driver end ring tongue terminals on the laser end e 6 foot long RS 232 communications cable e 10 foot long standard Ethernet EIA TIA 568A cable e 10 foot long chassis grounding cable e mounting hardware 88 020 10 Cable Kit 2 Includes one 10 foot long high performance Litz wire array attachment cable with two hole compression lugs on the driver end with mounting hardware 88 024 Umbilical Conduit Use this 1 5 inch ID conduitto safely and neatly contain the cabling from the eDrive to your laser system Specify the length in feet for xx For example 88 024 25 specifies a 25 foot long conduit Includes two ferrules and nuts 88 025 10 Plumbing Kit Includes two 10 foot long coolant hoses two 1 foot long coolant hoses two quick disconnect fitting pairs and 8 hose clamps 8
22. 1to 3000 LSB value 1 amp second This value represents the current level for channel 2 when the eDrive is Channel 2 32 actively driving the array output in either CW or QCW modes See Standby Active Current Current below Units amps A Range 0 to 1 000 LSB value 0 1A Channel 2 This value represents the current level for channel 2 when the eDrive is in Standby Current 33 standby CW or QCW mode or during the inactive portion of the QCW pulse Units amps A Range 0 to 1 000 LSB value 0 1A This value represents the width of a current pulse for channel 2 It is only 112 34 used when the channel is in QCW mode Range 10 to 100 000 limited by the system frequency to prevent the pulse Ch width from exceeding the period LSB value 0 1 5 annel2 Pulse 35 Fortis value to be properly written write to the high word first followed b Width Low or this value to be properly written write to the high word first followed by he low word This value represents the delay of the current pulse of channel 2 relative to Channel 2 Pulse 36 the trigger Itis only used when the channel is in QCW mode Delay High Range 1to 100 000 LSB value lus When using internal triggering the range is limited by the system frequency 50 the pulse ends before the start of the nexttrigger When using external Channel 2 Pulse 37 triggering all external trigger events are ignored during an active pulse Delay Low For this value to be properly written write to the
23. 42 The eDrive provides an interface to support connection of an external Q switch driver This external driver may be an acousto optical driver an electro optical driver or other a driver or controller of another type There are five signals in this interface Please refer to the section Q switch Driver in the chapter Connector Interfaces for a signal description This interface provides the enable trigger first pulse suppression and reset signals that are needed by a typical external device in order to q switch a laser Consult the factory for details on connecting your specific q switch device eDrive User Manual Application Examples This chapter describes applications demonstrating how to use your eDrive in various laser system configurations You will learn how to implement these functions in your laser system Controlling an eDrive with a computer Configuring your laser system to connect to the eDrive eDrive User Manual 43 Application Examples Controlling an eDrive with a Computer The eDrive has built in remote control capability using the serial ports or Ethernet interface Custom software LabView drivers or Active X and DCOM Modbus drivers can be used to communicate with the eDrive Using the Serial Port To set up an automated control system with a local PC using the serial port connect the eDrive to the serial port on the PC using a standard M F 9 pin serial cable see 88 019 10 in Accessories
24. 5 5 8 power input Exhaust Ethernet port Power switch 1 0 connectors Fiber ferrule Aero only t _ 59595959090 0 2 3i ofo i gt eDrive User Manual Getting Started Installation Input Power Use only power cords suitable for your driver The power cord must be connected to a properly grounded wall outlet socket Use a power source that delivers power according to the tables shown below Power switching is done automatically there are no configuration switches to set for high or low power ranging Observe recommended fuse selection for each voltage range Note that there are no user replaceable fuses in the eDrive Base Unit Use type 3AB Ceramic Body Slo Blo fuses Input Power Specifications eDrive Base AC Input Frequenc 100 240 4A max 50 60 Hz Input Power Specifications eDrive Nitro Aero AC Input Frequency brc 120V 10 15A 50 60 Hz T 15A 250V 240V 10 8A 50 60 Hz T 8A 250V Fuse Dimensions 0 25 x 1 25 inches Rack Mounting The eDrive was designed to be mounted and used in an EIA 310D compliant rack When installing the eDrive or eDrive Nitro into the rack always install rack mounting screws into the two bottom holes of the front panel flanges first and then install screws into the top holes This will help to minimize any potential damage that might occur to the eDrive front panel if the dr
25. CRC field can be discarded the Address field is inserted into the Unit Identifier byte which is the last byte of the MBAP the Function field is inserted into the Function field and remaining portion of the message is inserted into the Data field as described in Ethernet Message Framing For details on the Modbus TCP query response please refer to the Modbus Specification and the Modbus Messaging Implementation Guide available from http www modbus org eDrive User Manual Communications Function 01 Read Output Bits Reads the ON OFF status of discrete outputs in the eDrive Broadcast is not supported This function accesses read write bits described later in this chapter Query The format of the query is Address Function Bit Start Bit Count CRC Address 1 byte 0x01 2 bytes 2 bytes 2 bytes The query message specifies the starting bit and number of bits to be read The bit start address is the address of the first bit to be read The bit count is the total number of bits to be read The bit address and bit count are transmitted MSB first Response The format of the response is Address Function Byte Count Bit Data CRC 1 byte 0x01 1 byte n bytes 2 bytes The response contains the bit status of the requested bits packed into bytes The byte count indicated how many packed bytes are being returned The packed bits are transmitted as n 7 n n 15 n 8 n 23 n 16 etc whe
26. Channel 1 Geswitch Enabled When the display is as shown below all trigger events are generated externally using a signal input on the trigger gate input connector Channel Setur External Trigger Channel 1 Geswitch Enabled When the display is as shown below all trigger events are generated internally using the Timing Engine and may be interrupted using a signal input on the trigger gate input connector Channel Setur Meru External Gate Channel 1 G switch Enabled eDrive User Manual User Interface Communications Setup This is the main menu display Press Comm Setup to select the communications setup menus Main Meru Channel Lamm Interface Utility Setur Setur Setur Functions A This is the Communications Setup Menu It is used to configure the various serial interfaces in the eDrive Press RS 232 Channel 0 Setup to configure the serial port for your application Note that RS 232 Channel 1 and RS 485 setup are essentially identical and will not be described separately Communications Setar EA 2352 Channel amp Channel 1 Rz 485 Ethernet Setur tetur tetur Setur Press Set Baud Rate Channel Setur Meru Set Set Set Set Baud Rate Bit Frame Function Address Use the selection knob to set the value Select from 1200 2400 4800 9600 19200 38400 Press Done to enter the value Set 5 252 Channel amp Baud Rate
27. Examples 138 eDrive User Manual Chiller Appendix B Connector Interfaces This connector provides a chiller control interface Chillers purchased with the eDrive may be connected to this interface for integrated control The dedicated RS 485 interface provides a communications channel for temperature control Power control and operational interlocks are also available Consult factory for options Connector type 9 position D sub plug Pin Name 1 Chiller Flow Interlock Function This ground open input indicates to the eDrive that the there is a coolant flow fault Short to ground for normal operation 2 Ground Signal reference 3 Chiller Power Control 1 his signal along with Chiller Power Control 2 is used to control the power of the external chiller This signal along with P ower Control 2 provides a dry contact relay output Max currentis 1A Applied voltage should not exceed 28 VDC 4 Ground Signal reference 5 Chiller Power Control 2 This signal along with Chiller Power Control 1 is used to control the power of the external chiller This signal along with P ower Control 1 provides a dry contact relay output Max currentis 1A Applied voltage should not exceed 28 VDC 6 Data 1 0 Serial data bus for chiller 7 Data 1 0 communications 8 Chiller Level Interlock This ground open input indicates to the eDrive thatthe there is
28. LCW 6A has flowed through the AIM OnTi 2 Range 0 to 4 294 967 295 LSB value 1 second nTime Low Channel 1 CW EE 8 E This value represents the CW power cycle count for channel 1 that indicates gh Channel LCW how many times current flow has been turned on and off in CW mode Range 0 to 4 294 967 295 Power Cycle 29 Count Low Channel 1 Pulsed Mode 30 Shot C ounter High This value represents the channel 1 shot counter Channel 1 Range 0 to 4 294 967 295 Pulsed Mode 31 Shot C ounter Low Channel 2 Firmware Version 48 X Channe 2 This value represents the firmware version of the channel 2 Array Interface Firmware Version 49 Modul h ber 4 odule AIM The version number is represented as x y z Channel 2 Firmware Version 50 7 Channel 2 This value represents the amount of current presently flowing through Sensed Current 51 channel 2 If the eDrive is in pulsed mode and active the current reading during the active pulse will be returned Flow 9 Range 0 to 1 000 LSB value 0 1A Channel 2 Power 52 This value represents the power supply voltage reading for channel 2 Supply Voltage Range 0 to 3500 LSB value 0 1V Channel 2 53 This value represents the temperature reading for channel 2 Temperature Range Oto 1000 LSB value 0 1C Channel 2 54 This value represents the current limit setting for channel 2 Current Limit Range 0 to 1 000 LSB value 0 1A Channel 2 Duty 55 This value represents the duty cycle limit for chan
29. LSB value 1 second Timer Low Channel 1 Firmware Version 16 X S ars 17 This value represents the firmware version ofthe channel 1 Array Interface Y Module AIM The version number is represented as 2 Channel 1 Firmware Version 18 7 Channel 1 This value represents the amount of current presently flowing through Sensed Current 19 1 If the eDrive is in pulsed mode and active the current reading Flow during the active pulse will be returned Range 0 to 1 000 LSB value 0 1A Channel 1 Power 2 This value represents the power supply voltage reading for channel 1 Supply Voltage Range 0 to 3500 LSB value 0 1V Channel 1 21 This value represents the temperature reading for channel 1 Temperature Range Oto 1000 LSB value 0 1C Channel 1 2 This value represents the current limit setting for channel 1 Current Limit Range 0 to 1 000 LSB value 0 1A Channel 1 Duty 3 This value represents the duty cycle limit for channel 1 Cycle Range 0 to 1000 LSB value 0 1 percent Channel 1 This value represents the number of hours accumulated on the warranty Warranty Timer 24 timer of the channel 1 AIM High Range 0 to 4 294 967 295 LSB value 1 second eDrive User Manual 71 Communications 72 Channel 1 Warranty Timer 25 Low c nenne 1 eM 26 This value represents the CW on time for channel 1 that current levels above nTime High Channel
30. Ote INIRE ets ds 52 TCP IP Address Subnet Mask and Gateway Address 52 ETHERNET MESSAGE FRAMING 2 2 2 2040200200000 000000000000000000000000 52 FUNCTION DESCRIPTION 2 21 42 2 0000000010000000000000000000000000000 54 FUNCTION 01 READ OUTPUT BITS 55 FUNCTION 02 READ INPUT 56 FUNCTION 03 READ HOLDING REGISTERS eee 57 FUNCTION 04 READ INPUT REGISTERS eese enne 58 FUNCTION 05 WRITE OUTPUT essen eene enne nennen 59 FUNCTION 06 WRITE SINGLE HOLDING REGISTER eee 60 FUNCTION 11 READ COMMUNICATIONS 5 08 61 FUNCTION 16 WRITE MULTIPLE HOLDING REGISTERS eee 62 READ WRITE Or eee ute it 63 REABD ONEY BTIS iiec Ree aer o RC D RERO NP eris 65 READ WRITE REGISTERS csesesseccceceesessececeeceessaececececeesssececeeeceesenseaeeeeeees 68 READ ONLY REGISTERS ccsesssccececeessssececececsessuececececseneneaeceesesesenssaeeeeeees 71 USER INTERFACE 75 FRONT PANEL CONTROLS 5 cocecos cob 76 EOD REA 76 Power Control aveo 76 Soft BUMONS eee en 76 Meni
31. Press Set Current Tolerance to set the current tolerance Channel 1 Fault Setur Set Current Set Joltase Tolerance Current Droroat Diabled Tolerance Use selection knob to set value Press Done to enter value Set Channel 1 Current Tolerance Present B ie Rotate Dial to Change value 1 ione eDrive User Manual 91 User Interface CW Q Switch Setup Menu eDrive 92 This menu supports configuration of the Q switch operation NOTE The Q switch menu will display either CW or Pulsed mode depending on the mode selected for Channel 1 This is the channel setup menu Press Q Switch to select Q Switch setup menus Channel Setur Internal Trigger Channel 1 Geswitch Enabled Press Q switch Enabled to toggle the Q switch enable Make sure that it is enabled Setur Meru Set Window Width Ch Switch Set Freauenca Switch Enabled Press Set Frequency to set the Q switch repetition frequency G 5uitch Setur Menu Set Switch Set Enabled Freauenca Width More Use the selection knob to set the value Press Done to enter the value Set Switch Present Freauenca 1 66 kHz Rotate Dial to Change lalue 1 Press Set Window Width to set the width of the Q switch window eDrive User Manual User Interface GS
32. Specifications eDrive Mechanical Outline 1 17 65 448 4 1 64 141 11 Dl kil SS m Do o o oO o 0 gr 24 5 am s 4 128 eDrive User Manual Appendix Specifications 9 287 00761 UL 00 o eDrive Nitro and Aero Mechanical Outline e e G e 1277861 8 1 e e e e e T meg D EXT 114191 T ba ET H y9 l IA 0811 129 eDrive User Manual Appendix Specifications Model Numbers 130 eDrive Base Model Number Build an eDrive model number using the following guide Note that this guideline may become outdated as new features are added Model 1 2 Model 3 Model 4 Model 5 7 Model 8 These characters of the model number are always indicates that this is an eDrive This character indicates the chassis size 2 2U 4 4U This character indicates the operational modes of the driver C CW operation only P CW or QCW pulsed operation L fiber laser product see Aero part number extension These characters are always for the standard product This character indicates the cooling method used A air cooled W water cool
33. User Manual Getting Started This chapter provides a brief overview of the features of your eDrive product and describes how to do the following tasks Install your product Connect your product General Features eDrive is a next generation laser system controller It manages all critical diode pumped solid state DPSS laser parameters including diode drive current Q switch and system interlocks It is capable of driving diodes in either continuous wave CW or quasi continuous wave QCW operating mode eDrive is equipped with multiple control options easy to use local front panel interface along with a host of digital remote control options including compatibility with Labview are included The eDrive has been designed for maximum reliability All system components are conservatively rated High power circuits are physically separated from low power circuits Minimal internal interconnect wiring reduces the risk of failure eDrive can be expanded to operate multiple additional diode current drive channels simultaneously by adding optional Array Interface Modules AIMs The eDrive Nitro includes an integrated power supply with up to 1500W capacity and related laser system accessories The eDrive Aero includes an integrated power supply and a fiber pump source LabView is the property of National Instruments Corporation eDrive User Manual 1 Getting Started The following list highlights key featu
34. are present Banner This display is presented at boot up time The model name and firmware version will be displayed Note that the actual firmware version number may differ for your system e rive Laser System Controller Firmware lerzion 1 5 2 When your eDrive is first powered on the next display will be the main menu If you change to a different menu mode that mode will be the first displayed after the banner Main This is the main menu display The eDrive displays this by default Main Meru Channel Lamm Interface Utility Setur Setur Functions For a description of the communications setup menus refer to the section Communications Setup later in this chapter For a description of the interface setup menus refer to the section Interface Setup later in this chapter For a description of the utility functions setup menus refer to the section Utility Functions Setup later in this chapter eDrive User Manual User Interface Channel Setup This is the channel setup menu For systems with more than one AIM channel additional channel selections will be available Channel 2 Channel 3 Channel Setur Internal Trigger Channel 1 Grswitch Enabled For a discussion of the triggering gating functions see Triggering Gating Setup later in this chapter eDrive User Manual 81 User Interface 82 Channel CW Setup This menu supports configuration of the cha
35. following table lists all read write registers defined in the eDrive Any register addresses that are not in the list are reserved and should not be used These data elements are accessible using functions 03 06 and 16 Name Addr Description This value represents the frequency of the internal timing engine If channel System lis in CW mode this frequency is only used for Q switch pulse generation Frequency 0 If channel 1 is in QCW mode this frequency is used for pulsing of channel 1 and the Q switch pulses are tied to the current pulse Range 2to 50 000 LSB value 1Hz Q switch Pulse This value represents the width of the Q switch pulse in 0 0145 increments Width 1 The eDrive rounds the value to the nearest 0 04 us value Range 1to 25 000 LSB value 0 01 5 This value represents the timing offset of the Q switch pulse relative to the end ofthe current pulse This value is only valid when channel 1 is in QCW Q switch P ulse 2 mode Offset High When the offset is zero the Q switch pulse will end the same time the current pulse ends A negative value moves the Q switch pulse before the end of the current pulse A positive number moves the Q switch pulse after he end of current pulse The eDrive rounds the value to the nearest 0 04us value Q switch P ulse 3 Range 2 147 483 648 to 2 147 483 647 limited by system frequency and Offset Low pulse width LSB value 0 01us This value is a signe
36. number of registers to be read The register address and register count are transmitted MSB first Response The format of the response is Address Function Byte Count Reg Data CRC 1 byte 0x04 1 byte 2n bytes 2 bytes Each register is a two byte word For each register the first byte contains the high order bits and the second byte contains the low order bits If the value stored in the register is represented by less than 16 bits the data is right justified within the 16 bits of the register The data for each 2 byte register is transmitted high byte first and low byte second 58 eDrive User Manual Communications Function 05 Write Output Bit Writes the status of an output bit in the eDrive to ON or OFF Broadcast is supported When broadcast the function writes the same addressed bit in all attached eDrives This function accesses read write bits described later in this chapter Query The format of the query is Address Function BitAddress Value CRC 1 byte 0x05 2 bytes 2 bytes 2 bytes The query message specifies the bit address and the value to be written to that bit address Transmitting a value of 0x0000 will set the bit to OFF and transmitting a value of will set the bit to ON The bit address and value are transmitted MSB first Response The response is a duplicate of the query message which will be transmitted after the command has been successfully exec
37. proper ventilation Do Not Operate in Wet Damp Conditions eDrive User Manual Vil General Safety Summary Do Not Operate in an Explosive Atmosphere Keep Product Surfaces Clean and Dry Safety Terms and Symbols Terms in This Manual These terms may appear in this manual A WARNING Warning statements identify conditions or practices that could result in injury or loss of life A CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Productor in the Manual These symbols may appear on the product or in this user manual kes ESD Laser Emission Handle Appropriately Use Caution gt Caution Risk of Chassis Ground Danger Refer to Manual viii Shock Hazard Use Caution Power Switch Position Symbols On O Off eDrive User Manual Preface This manual contains operating information for the eDrive series laser system controllers The manual consists of the following chapters Getting Started briefly describes features of the driver and provides installation instructions Understanding Dri
38. the full menu system and the restricted menu system called Quick Menus Quick Menus offers the user the most basic system options while preventing 76 eDrive User Manual User Interface access to system configuration and setup features The full menus might be considered useful for the experienced laser scientist engineer or technician The Quick Menus are useful for the most basic operations and may also be used to restrict access to advanced features for operators with little expertise See the sections below for Standard Menus and Quick Menus Current Button Pressing the CURRENT button the first time causes the menu system to jump directly to the current control menu of the Quick menus without leaving the Standard menus system Pressing the CURRENT button while already in the current control menu causes the menu system to jump to the large format display Refer to the section Current Monitor Menu later in this chapter Shutter Button and Indicator The SHUTTER button provides control over the shutter enable signal This is not a direct control of the shutter output only an enable In order for the shutter to open the shutter enable must be active and the eDrive must be in the active state While in the standby or inactive states the eDrive will not actuate the shutter While in the active state the shutter button will open and close the shutter The state of the shutter enable signal is provided with the green shutter
39. to properly connect your eDrive to a suitable power source The eDrive Nitro and similar 40 models have a rear panel power control switch This switch is marked with the universal switch position legends and I Press the switch on the I side This enables the power to be controlled from the front panel To power on your eDrive from the front panel turn the key lock switch to the ON position and press the POWER switch momentarily The eDrive will boot up and display the user interface menus eDrive User Manual 23 Operating Basics To power off your eDrive either turn the key lock switch to the OFF position or press and hold the POWER switch for three seconds Using the Selection Knob The selection knob provides the means for quickly selecting wide range values in the eDrive Operation is straightforward When the display indicates use the selection knob to make adjustment to the parameter selected In some cases where it is impractical to make adjustments to the values with normal selection knob behavior the display will indicate to press the selection knob to change the scale Press and hold the selection knob for a brief period until the scale changes to 10x or 100x This will facilitate quick excursions in the selected value Press the selection knob again to return to 1x mode for fine adjustments Navigating the Menu Systems 24 The eDrive series controllers provide extensive control of laser system and array parameter
40. your power supply to meet the conditions of your laser or diode array for optimal performance The voltage should be set high enough to obtain proper pulse waveform characteristics The voltage should be set low enough to allow for the broadest operating envelope without overheating the eDrive Waveform Characteristics and Standby Current Normally the current between pulses is zero In some cases however it is desirable to continue to pass some current through the laser To achieve this the eDrive can deliver a stand by current to the laser This might be used to minimize thermal shock or to achieve the fastest possible turn on times To set a stand by current from the main menu select Channel 1 Set Standby Current Enter a value that is below optical threshold so that the laser does not lase but stays warm A value between 3A and 8A is typical The oscillogram below shows the stand by current that follows the first current pulse after EMISSION is pressed Note that the current before the pulse is OA Standby Curr nt 5 100us div eDrive User Manual 37 Operating Basics Configuring the Integrated AO Q switch RF Driver The eDrive Nitro and Aero have a built in RF driver for AO Q switching with proprietary first pulse suppression FPS control Overview The figure below shows a typical Q switching function The top trace is the trigger signal the middle trace is the optical output pulse measured with a photo detec
41. 5 100 5 Transition Time 5us typ 5 us typ Current Monitor 100A Output Voltage 10A V 0 10 0 10V 0 10V 0 10V Accuracy 2 2 2 2 Current Monitor 300A Output Voltage 20A V 0 15V 0 15V 0 15V 0 15V Accuracy 2 2 2 2 Water Cooling Pressure Drop 0 5 PSI 0 5 PSI Maximum Pressure 60 PSI 60 PSI 126 eDrive User Manual Appendix Specifications Minimum Coolant FlowRate 529477017 1GPM 1GPM Compliance voltage is defined as the maximum voltage a current source will go to in order to source the programmed current In the case of the eDrive the compliance voltage is the maximum voltage which can be applied to the diode array in order to achieve the desired current flow 2 The eDrive has been tested to comply with the requirements for CE marking for compliance voltages up to 60 Volts For compliance voltages in excess of 60 Volts contact the factory for more information NOTE User must minimize overload voltage Refer to section on Operating Basics pages 23 41 Electrical Specifications Input Power Specifications eDrive Base AC Input Frequenc 100 240 4A max 50 60 Hz Input Power Specifications eDrive Nitro Aero AC Input Frequency 120V 10 15A 50 60 Hz T 15A 250V 240V 10 8A 50 60 Hz T 8A 250V Fuse Dimensions 0 25 x 1 25 inches eDrive User Manual 127 Appendix
42. 7 control 44 interfacing 43 configuration retention 13 configuring a laser to work with eDrive 46 configuring safety settings 13 connector interfaces 133 contacting Cutting Edge Optronics xii contrast 113 control and Active X 44 and DCOM 44 and LabView drivers 44 and Modbus 44 and serial port 44 computer 44 remote 44 controls front panel 76 coolant interlock 8 9 count pulse shot 118 cover interlock 9 covers vii CRC calculations 157 code example 160 flowchart 159 overview 157 procedural description 158 cross over cable 44 current 19 and controlled hookup wire 36 and overshoot 34 and pulse width 33 and standard hookup wire 34 and supply voltage 32 large format display 77 123 long pulse 33 menu 77 monitor 142 pulse amplitude 33 162 regulation stability 10 regulator 17 setting maximum amplitude 27 standby 37 weak pulse 33 current button 77 current loop 10 current monitor interface 142 cyclic redundancy check See CRC D damage vii data field 50 DCOM 44 device address 49 DHCP 52 server 44 display resolution 125 126 128 disposal xi dropout voltage 28 duty cycle 18 setting maximum 27 E eDrive block diagram 12 front panel 3 mechanical outline 129 rear panel 4 eDrive Aero block diagram 13 front panel 5 mechanical outline 130 rear panel 6 edrive network name 45 eDrive Nitro block diagram 12 front panel 5 mechanical outlin
43. 8 026 10 External hold up capacitor kit Includes 4700uF electrolytic capacitor one bleed resistor one capacitor attachment cable two capacitor brackets and mounting hardware Use this kit to extend the duration of high current pulses or stabilize undersized or slow power supplies 88 021 10 Emergency Stop button red Use this button to replace a damaged eDrive button eDrive User Manual 153 Appendix Accessories 154 eDrive User Manual Appendix D General Care and Cleaning General Care Do not store or leave the instrument where it will be exposed to direct sunlight for long periods of time CAUTION To avoid damage to the instrument do not expose the driver to sprays liquids or solvents Cleaning Inspect the instrument as often as operating conditions require To clean the exterior surfaces perform the following steps Turn the system off and disconnect power 2 Remove loose dust or dirt on the outside of the instrument with a lint free cloth Use care to avoid scratching the clear plastic display cover 3 Disconnect power to the equipment and clean the exterior of the equipment as needed Use a soft cloth dampened with water to clean the instrument Use an aqueous solution of 75 isopropyl alcohol for more efficient cleaning CAUTION To avoid damage to the surface of the instrument do not use any abrasive or chemical cleaning agents eDrive User Manua
44. Address Reg Count CRC 1 byte 0x03 2 bytes 2 bytes 2 bytes The query message specifies the starting register and number of registers to be read The register start address is the address of the first register to be read The register count is the total number of registers to be read The register address and register count are transmitted MSB first Response The format of the response is Address Function Byte Count Reg Data CRC 1 byte 0x03 1 byte 2n bytes 2 bytes Each register is a two byte word For each register the first byte contains the high order bits and the second byte contains the low order bits If the value stored in the register is represented by less than 16 bits the data is right justified within the 16 bits of the register The data for each 2 byte register is transmitted high byte first and low byte second eDrive User Manual 57 Communications Function 04 Read Input Registers Reads the contents of input registers in the eDrive Broadcast is not supported This function accesses read only registers described later in this chapter Query The format of the query is 5 Reg Start Address Function Address Reg Count CRC 1 byte 0x04 2 bytes 2 bytes 2 bytes The query message specifies the starting register and number of registers to be read The register start address is the address of the first register to be read The register count is the total
45. CHANICAL OUTLINE 128 EDRIVE NITRO AND AERO MECHANICAL OUTLINE eee 129 MODEL NUMBERS 5 m uate ee 130 eDrive Base Model nennen 130 eDrive Nitro Model 130 eDrive Aero Model 8 131 Model Number Examples essen 132 APPENDIX B CONNECTOR INTERFACES 2 4 9 eren eene 133 RS 232 CHANNBE 0 l rice te ates m i E ROT 135 RS 232 CHANNEBE32 eA Te e ee 136 RS 485 ceno ESTE OT eM I 137 EXTERNAL SENSORS EDRIVE enne enne 138 M 139 CAN BUS ure ette E NIS 140 Q SWITCH DRIVER EDRIVE ONLY isses ener enne 141 TRIGGER GATETN 55 ane una GR Reus 142 TRIGGER OUT 5 ot SG Ah ERR 142 CURRENT MONITOR eee Dn E ERES 142 Q SWITCH INTERLOCK EDRIVE NITRO AERO 142 RF OUT 1 amp 2 EDRIVE NITRO AERO 142 143 INTERLOCK PLASTIC HOUSING EDRIVE NITRO AERO ONLY 143 LASER INTERFACE EDRIVE NITRO AERO 144 FIBER LASER OUTPUT EDRIVE AERO 146 iv eDrive User Manual Table of Contents ETHERNET eene en
46. CW Mode d Select Channel Disabled to toggle back to the enabled state A WARNING When switching between operating modes be sure to adjust the power supply according to the instructions in this section to avoid overheating the eDrive Using the eDrive Aero Fiber Pump Source Safety The eDrive Aero is a standard eDrive with an integral fiber pump source as the power output device Since it is a laser power source it is important to observe safety precautions at all times during the installation operation and maintenance of your system WARNING Do not attempt to place the eDrive Aero into active emission with no fiber optic cable attached to this connector Damage to equipment or personnel may result DANGER This connector emits visible and invisible laser radiation Avoid indirect scattered exposure to eyes or skin Damage to equipment personnel may result This is a Class IV laser product When attaching a fiber optic cable to the eDrive Aero use proper handling to prevent damage to the delicate fiber components Configuration It is important to properly set the operating parameters for the eDrive Aero before beginning active emission The eDrive Aero has been configured with the proper internal power supply The user interface will limit the supply current to levels appropriate for the integral fiber pump source Please refer to the section User Interface for details on 26 eDriv
47. Channel 3 Pulse 53 triggering all external trigger events are ignored during an active pulse Delay Low For this value to be properly written write to the high word first followed by the low word Channel 3 Slew 54 This value represents the slew rate for channel 3 Rate Range 110 3000 LSB value 1 amp second eDrive User Manual Read Only Registers Communications The following table lists all read only registers defined in the eDrive Any register addresses that are not in the list are reserved and should not be used These data elements are accessible using function 04 Name Addr Description SC Firmware 0 Version X SC Firmware 1 This value represents the firmware version of the system controller SC Version Y The version number is represented as 2 SC Firmware 2 Version Z Front Panel 3 The firmware version of the front panel Firmware Version 4 This value represents the number of hours accumulated on the warranty SC Warranty timer of the SC 5 Range 0 to 4 294 967 295 LSB value 1 second Timer Low EM Firmware 6 Version X EM Firmware This value represents the firmware version of the expansion module EM Version Y The version number is represented as 2 EM Firmware 8 Version Z ia 9 This value represents the number of hours accumulated on the warranty EM Warranty timer of the EM 10 Range 0 to 4 294 967 295
48. Communications 74 eDrive User Manual User Interface Reference This chapter contains a reference of the front panel user interface including Front panel controls Standard menus displays Quick menus displays Current monitor menu display Error fault displays eDrive User Manual 75 User Interface Front Panel Controls This section provides a brief description of the front panel controls A MENU CURRENT SHUTTER EMISSION O O sia EMERGENCY O OF C Q The front panel has the following features LCD The LCD is a four line by 40 character display with backlight Power Control Button The power control button under the LCD is used in conjunction with the keylock switch to power the eDrive on and off To power on simply press the POWER button while the keylock switch is in the ON position To power off hold the POWER button in for three seconds Soft Buttons The four soft buttons under the LCD are used in conjunction with the text on the LCD The functions of these buttons are determined by the text displayed over them Menu Button The MENU button has several functions It navigates toward the main menu If you have navigated to sub menus within the menu system pressing MENU will take you upward in the menu structure until you return to the main menu It switches between menu modes Press and hold MENU for three seconds to switch between
49. ENU gt Channel Setup Pulse Width means that you push the MENU button then push the Channel Setup soft key and then push the Pulse Width soft key X eDrive User Manual Preface Product End of Life Handling Cutting Edge Optronics is committed to protecting the environment Although the driver is not included in the list of devices governed by the WEEE and RoHS EU directives Cutting Edge Optronics will W attempt to provide return service and disposal of your used equipment When you are ready to reclaim the instrument you must properly transfer it according to local regulations concerning WEEE equipment or ship the instrument to the Cutting Edge Optronics recycling center You may contact Cutting Edge Optronics for the recycling center shipping address and instructions eDrive User Manual xi Preface Contacting Cutting Edge Optronics Phone Address Web site Sales support Service support Technical support 1 636 916 4900 Cutting Edge Optronics 20 Point West Blvd St Charles MO 63301 USA www northropgrumman com Search ceolaser 1 636 916 4900 x561 1 636 916 4900 x562 Email ssc30 edrive ngc com 1 636 916 4900 x563 8 00 a m to 5 00 p m Central time After office hours please leave a voice mail message Outside North America contact a Cutting Edge Optronics sales office or distributor see the Cutting Edge Optronics web site for a list of offices xii eDrive
50. FF The internal q switch RF driver does not have an HVSWR fault Q switch 1 ON The internal q switch RF driver has an HVSWR fault HVSWR Fault HVSWR high voltage standing wave ratio eDrive Nitro only Q switch High internal q switch RF driver does not have a high power fault Power Fault 22 ON The internal q switch RF driver has a high power fault eDrive Nitro only Laser Shutter 3 OFF The shutter output is not energized State ON The shutter output is energized Channel 1 Off 32 OFF Channel 1 is not in the Off State State ON Channel 1 is in the Off State Channel 1 3 OFF Channel 1 is not in the Standby State Standby ON Channel 1 is in the Standby State Channel 1 3 OFF Channel 1 is not in the Active State Active ON Channel 1 is in the Active State Channel 1 Fault 35 OFF Channel 1 is not in the Fault State State ON Channel 1 is in the Fault State Channel 1 State 36 OFF Channel 1 state does not have a fault Mismatch Faul ON Channel 1 state has a fault Channel 1 y OFF Channel 1 processor communication is good Comm Fault ON Channel 1 processor stopped communicating with the system Channel 1 38 OFF Channel 1 does not have a hardware fault Hardware Faul ON Channel 1 has a hardware fault Channel 1 39 OFF Channel 1 is not on the emergency stop state E Stop Fault ON Channel 1 is on the emergency stop state namei OFF Channel 1 processor communication is good omm Timeou 40 POE Fault ON Channel 1 has a faul
51. Fault ON The emergency stop button is pressed OFF The QSW fault is not active Q switch Fault 11 ON The QSW faultis active OFF Channel 1 does not have a fault Channel 1 Fault 12 Channel 1 has fault OFF Channel 2 does not have a fault Channel 2 Fault 13 ON 2 has a fault OFF Channel 3 does not have a fault Channel 3 Fault 14 ON Channel 3 has a fault Front Panel 15 OFF The Front Panel does not have fault Fault ON The Front Panel has fault aser Cover OFF The laser cover interlock is grounded gt 16 ON The laser cover interlock is open nterlock eDrive Nitro only Laser Coolant OFF The laser system coolant flow interlock is grounded Flow Interlock 17 ON he laser system coolant flow interlock is open eDrive Nitro only Q switch OFF z The q switch thermal interlock is grounded Thermal 18 ON The q switch thermal interlock is open nterlock eDrive Nitro only OFF internal q switch RF driver is operating within safe temperature Q switch Driver 19 range Thermal Fault ON z The internal q switch RF driver has an over temperature fault eDrive Nitro only eDrive User Manual 65 Communications Q switch Crystal OFF z The q switch thermal BNC interlock is shorted safe Thermal 20 ON The q switch thermal BNC interlock is open faulted Interlock eDrive Nitro only O
52. User Manual Getting Started Front Panel eDrive uoissiui3 ieunus Ske peipoipeg Sho HOS Jamad N p Oog 155 GLS 151 NH N 1 330 N diis V 7 A3NDN3H3 N X NE NE pams po Aey qouy 10 5 a91 0 eDrive User Manual Getting Started Rear Panel eDrive uod s1opeuuo O I isnpuxo 19Auq pnus 6 sisspu o er e GP GP cc o 80d q D o o lt gt AVUY u3MOd LNANI 83 Ne T SX d s o indiao indui indjao indui 19681 19581 ndu amod DY s puruue jadjno sjouwe 19 od jnduj eDrive User Manual Getting Started Front Panel eDrive Nitro and Aero p 510jD3Ipul UoIssItu3 ums dois AxueB1eu ieunus soporte ooog MQSSIAS LINKS 19990 ON 5493 peipoipeq shox HOS 19 0d u3M0d 1opejes eDrive User Manual Getting Started Rear Panel eDrive Nitro and Aero RF outputs Array power Interlock Laser interface Trigger Current Array output terminals 2 S 5 52 52 PE 2 5 _ 8 5 2 2 8 Says P T ae BC 8 18 2 p 4
53. User Manual eDrive eDrive Nitro eDrive Aero Laser Diode Driver and Laser System Controller NORTHROP GRUMMAN User Manual eDrive and eDrive Nitro Laser Diode Driver and Laser System Controller CEO UMAN 0001D This document supports firmware version 1 6 0 and later NORTHROP GRUMMAN Copyright 2006 2010 Cutting Edge Optronics a division of Northrop Grumman Corporation rights reserved Northrop Grumman Corporation products are covered by U S and foreign patents issued and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved Cutting Edge Optronics 20 Point West Boulevard St Charles MO 63301 eDrive eDrive Nitro and Timing Engine are registered trademarks of Northrop Grumman Corporation Updated 8 18 2010 WARRANTY SUMMARY eDrive eDrive Nitro and eDrive Aero series Laser System Controller Cutting Edge Optronics warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment from an authorized Cutting Edge Optronics distributor If a product proves defective within the respective period Cutting Edge Optronics will provide repair or replacement as described in the complete warranty statement To arrange for service or obtain a copy of the complete warranty statement please contact your nearest Cutting Ed
54. Water Cooled 100A QCW QCW Amplitude 30 096 D C 70 096 D C Output Current 50A 8 100A 70A 100A Display Resolution 100mA 100mA 100mA 100mA Accuracy 296 296 29 296 Noise 200mA 200mA lt 200mA lt 200mA peak Pulse Rate 2 Hz 50 2 Hz 50 eaa ee ees wb 21 kHz O kHz Display Resolution H o e 0 10082 0 100 Hz 100 1 2 100 1kHz 10082 l 50kHz 1 50 2 eDrive User Manual 125 Appendix Specifications Accuracy 2 Pulse Width Rage 10us 500 10 us 500 ms ms Display Resolution 100ns 100 ns Transition Time 5us yp 5 us typ Trigger In Positive Positive Type e ede triggered triggered 2 TTL or 5V TTL or 5V Signal input cmos 77 CMOS Minimum Width 50ps 50 us Input Impedance 1 2 500 50 Compliance Voltage Compliance 0 350V 0 350V 0 350V 0 350V Display Resolution 0 1V 0 1V 0 1V 0 1V Accuracy 296 2 2 2 Miscellaneous Specifications Air Cooled Water Cooled QCW QCW operaung 0 40 C 0 40 C 0 40 C 0 40 C Temperature Operating 0 80 Non 0 80 Non 0 80 Non 0 80 Non Humidity Condensing Condensing Condensing Condensing Pulse Width Rage e 10us 500ms 0 jan 900 Display Resolution 1000
55. a coolant level fault on the chiller Shortto ground for normal operation 9 Ground Signal reference eDrive User Manual 139 Appendix B Connector Interfaces CAN Bus This connector provides a general purpose CAN bus serial port but is supported for custom applications only Consult factory for options 140 Connector type 9 position D sub plug Pin Name Type Function 1 No connection 2 Data 10 Serial data bus 3 Signal Ground G Signal reference 4 No connection 5 No connection 6 Signal Ground G Signal reference 7 Data 10 Serial data bus 8 No connection 9 Fused 5V 0 Provides 5V outat up to 1A eDrive User Manual Q switch Driver eDrive only Appendix B Connector Interfaces This connector provides an interface to support an external Q switch RF driver module Connector type 9 position D sub receptacle Pin Name 1 Trigger This signal trigg external RF modu pass through the Function ers enables the le to inhibit its RF output in order to allow light to Q switch Active high or low set by menu 2 Enable low set b This signal enables external RF module operation Active high or y menu 3 First Pulse Suppression IT his signal trigger ramp function high or low s s the RF driver to begin an amplitude modulated 0 reduce the effective power of the first pulses of a new firing sequence A
56. able from the chiller Be sure to observe correct pinout Refer to Appendix B for connector pinout User Interlocks The user interlock is a general purpose interlock It may be used to connect to a facility door switch an optics bench mounted emergency stop switch or other appropriate interlock device There is one user interlock connector on the rear panel of the eDrive and there are two user interlock connectors on the rear panel of the eDrive Nitro and Aero One type is a BNC connector and the other is a plastic two position connector The BNC type connector is provided for convenience in wiring A WARNING The BNC connector may carry a low voltage necessary for energizing the coil of the internal interlock relay This connector is to remain isolated from other conduction paths Do not allow either the BNC pin or connector barrel to touch other conductive elements other than the user interlock switch 8 eDrive User Manual Getting Started Laser Interface Interlocks The eDrive Nitro Aero laser interface connector provides several system interlocks that are helpful in operating a laser system safely These include a cover interlock a coolant interlock and a q switch thermal interlock You may route these signals to components inside your laser system such as a cover switch a flow rate switch and a q switch thermal sensor switch Refer to Appendix B for signal and connector details Array Power Connections Proper applicatio
57. able terminal Also the two hole feature prevents rotation of the terminal during installation and in the event that the cable is pulled which might cause the connection to loosen Signal Connections Signal connections to the eDrive are made with common connector types insuring ease of obtaining necessary parts Custom cables can be ordered from the factory to meet your specific installation requirements Contact the factory for a quote Refer to Appendix B Connector Interfaces for details on the signals connectors of the eDrive series eDrive Coolant Connections If using a water cooled eDrive the coolant water tubing must be connected to the stainless steel water connections on the back panel of the unit Use clear 3 8 tubing with a minimum pressure rating of 180 PSI to carry the coolant water to and from the eDrive unit These hoses should be secured onto the eDrive connections using hose clamps to ensure that they do not become loose and leak During operation a minimum coolant flow rate of 1 gallon per minute should be maintained To prevent damage to the unit do not exceed a maximum pressure of 60 PSI It is recommended that these water connections be inspected regularly to check for leaks or loose fittings and any damaged or leaking components replaced Also check for any discoloration of the tubing which might indicate contamination or degradation which could lead to clogging or leakage 10 eDrive User Manual Understandi
58. ameter selected In some cases where it is impractical to make adjustments to the values with normal selection knob behavior the display will indicate to press the selection knob to change the scale Press and hold the selection knob for a brief period until the scale changes to 10x or 100x This will facilitate quick excursions in the selected value Press the selection knob again to return to 1x mode for fine adjustments See the section Quick Menus below for more details on this control Keylock Switch The keylock switch is intended to prevent the eDrive from being powered on Turning the key to the OFF position will power the eDrive off The key may be removed while in the OFF position only eDrive User Manual User Interface Emergency Stop Switch The emergency stop switch is designed to be used in emergencies only It is not intended to be used for stopping laser emission or powering off the eDrive When the Emergency Stop switch is pressed the eDrive clamps the commanded current to zero and notifies the user on the front panel To return the switch to the safe state rotate the red actuator button in the direction indicated by the arrows eDrive User Manual 79 User Interface Standard Menus 80 This section outlines all of the displays used in the eDrive product line Some of the eDrive menus depend on the related functionality being present The menus for optional features will only be present if those options
59. ange 1 Press Set Window Width to set the width of the Q switch window Pulsed GeSwitch Setur Meru Set Set Q Swi tch Switch Wirda Enabled rfzet Width Hore Use the selection knob to set the value Press Done to enter the value Set Ceewitch Window Width Present 1 68 uz Rotate ial to Change 1 1 Press More to access additional options Pulsed GeSwitch Setur Menu Set Set Switch GeSwitch Wirda Enabled Offset Width More Press Set Q Switch Power to access the Q switch power modulation feature Refer to the chapter Operating Basics for a description of this feature Pulsed G Suitch Setur Menu Set i 5uitch More eDrive User Manual User Interface Use the selection knob to set the value Press Done to enter the value Set Switch Oubeut Power Present 21 X Rotate Dial to Change 1 eDrive User Manual 103 User Interface 104 Triggering Gating Refer to Understanding Driver Functions for an explanation of the various triggering and gating modes This is the channel setup menu Press button 3 to select the various triggering gating options When the display is as shown below all trigger events are generated internally using the Timing Engine Channel Setup Internal Trigger
60. ase at approximately 300us from the leading edge This results when the internal capacitor inside the eDrive is drained below the minimum charge to maintain the current amplitude The power supply cannot respond quickly enough to the change in current If this waveform characteristic is unacceptable it may be necessary to add another capacitor external to the eDrive Contact the factory for ordering information 100us div Waveform Characteristics and Standard Hookup Wire The figures below show the rising edge characteristics of a current pulse waveform The load is a 25 bar array and the eDrive is set to deliver a 70A pulse to the load The oscilloscope is set for 20A div vertically and 10 0us div horizontally The hookup wire connecting the eDrive to the array is over 5m long and consists of two 6AWG wires The external loop area of the current path is not well controlled and is estimated at approximately 0 1m eDrive User Manual 33 Operating Basics In the first figure the eDrive is not set to use slew rate limit control but rather is switching as fast as possible Note that the current waveform overshoots the target of 70A by 20A resulting in a peak of 90A The eDrive quickly compensates by regulating the current to the commanded 70A amplitude but the violation has already occurred This type of waveform characteristic typically occurs with high current amplitudes and poorly controlled inductance on the array hookup wire
61. ctive etby menu 4 Fault This signal indica or Q switch Ac es to the eDrive that there is an operational fault with the external RF driver module tive high or low set by menu 5 Q switch Reset switch RF driver This signal is used to reset Q conditions Active high or low set by menu Ground Signal reference Ground Signal re erence Ground Signal re erence Ground Signal re erence eDrive User Manual 141 Appendix B Connector Interfaces Trigger Gate In This connector provides an interface to support an external pulse trigger input function or gate input function Refer to Understanding Driver Functions for information about using this connector This signal is active high Connector type BNC Input impedance 500 Trigger Out This connector provides an interface to support an external pulse trigger output function Refer to Understanding Driver Functions for information about using this connector This signal is active high Connector type BNC Current Monitor This connector provides an interface to facilitate measuring the amplitude of the current output Refer to Understanding Driver Functions for information about using this connector Scale factor for this signal is 10A per volt for 100A eDrives and 20A per volt for 300A eDrives Connector type BNC Q
62. d 32 bit number For this value to be properly written write to the high word first followed by the low word This value represents the amount of RF attenuation imposed on the Q switch Q switch P ower 4 driving signal during a Q switch window Output Range 0 to 1000 LSB value 0 1 percent eDrive Nitro only This value represents the amount of RF attenuation imposed on the Q switch Q switch FPS 5 driving signal at the beginning of a First Pulse Suppression FPS event Start P ower Range 0 to 1000 LSB value 0 1 percent eDrive Nitro only This value represents the duration of the Q switch window 6 Range 10 to 1000 5 LSB value 1us eDrive Nitro only This value represents the type of attenuation function imposed on the Q Q switch FPS aiten arving signal during a Q switch window Refer to Operating Basics or details Window Type Functions 0 Linear 1 Exponential 2 Sine 3 Sine Squared eDrive Nitro only Q switch FPS This value represents the FPS delay setting This value determines the Delay High 8 of inactivity before an FPS eventis triggered upon restart of the pulses Range 10 5 to 500 ms LSB value lps Du m 9 For this value to be properly written write to the high word first followed by the low word 68 eDrive User Manual Communications This value represents the current level for channel 1 when the eDrive is
63. d in the Quick Menus Configuring and Testing Chiller Operation This section will step you through the operation of the eDrive and laser system 1 Verify that your chiller is connected properly turned on and that the flow rate is correct 2 Connect the coolant flow switch to the Chiller connector on the rear panel of the eDrive See Appendix B Connector Interfaces for pin designations If your laser system includes an internal flow switch verify that the signal connector is connected properly 3 Power on the eDrive If any errors are indicated on the display isolate and correct the problem before continuing 4 Verify the coolant flow interlock To do this turn off your chiller and verify that the eDrive displays a coolant flow fault Turn on the chiller press Clear and verify that the error display is no longer present Setting the eDrive Operating Mode To set your eDrive mode for your system configuration follow these steps 1 Make sure the eDrive is powered on 2 From the main menu select Channel Setup Notice whether the channel is in CW mode or QCW mode If you wish to change modes a Make sure emission is off If not press EMISSION eDrive User Manual 25 Operating Basics b Toggle the channel status to disabled If the display does not show Channel Disabled press Channel Enabled to toggle to the disabled state Select the desired operation mode by pressing Enable Pulsed Mode or Enable
64. d loop area 34 poorly controlled 34 inductive loading 10 injury vii input power 7 installation 7 interface and computer 43 interface setup 112 interfaces array output 149 CAN bus 140 chiller control 139 connector 133 current monitor 142 Ethernet 147 external sensors 138 fiber optic SMA 146 interlock 2 pin 143 interlock BNC 143 laser 144 laser on light 138 power lugs 148 power output 149 q switch driver 141 q switch interlock 142 q switch thermal interlock 145 RF output 142 RJ 45 147 RS 232 135 RS 485 137 shutter enable 138 trigger output 142 trigger gate input 142 interlock 2 pin 143 BNC 143 connections 8 coolant 145 cover 145 isolation 9 switches 46 internal capacitor 33 internal power supply 29 internal trigger gating 15 164 IP address 44 and DHCP 44 K key removal 78 keylock switch 23 78 L LabView drivers 44 large format display 77 123 laser and eDrive interface 46 emission viii interface 144 interlocks 9 laser on light 46 145 LCD 76 contrast 113 viewing angle 113 Litz wire 10 37 local area network 47 long current pulse 33 loop area 34 37 loop back mode 44 low inductance wiring 9 margin power supply 17 maximum current amplitude 27 maximum duty cycle 27 MBAP 52 mechanical outline eDrive 129 eDrive Nitro and Aero 130 menu banner 80 channel setup 81 channel setup CW 82 channel setup QCW 85 c
65. d to indicate to K Q switch Thermal the eDrive that the Q switch crystal is too hot to Interlock continue operation Short to ground for normal operation See Application Examples L Sensor Bus 10 This signal is reserved for future use M No connect N No connect No connect R Ground G Signal reference 5 Ground G Signal reference T HAV P 24V power supply output This signal can U 424V P supply up to 2A per contact 35V power supply output This signal can supply to 2A W Ground G Signal reference X Ground G Signal reference Y 415 15 power supply output This signal can supply up to 100 mA Z 15 15V power supply output This signal supply up to 100 mA a Ground G Signal reference b No connect No connect eDrive User Manual 145 Appendix B Connector Interfaces Fiber Laser Output eDrive Aero only This connector provides the output from the fiber pump source A fiber optic cable should be connected from this Fiber SMA to your laser module A WARNING Do not attempt to place the eDrive Aero into active emission with no fiber optic cable attached to this connector Damage to equipment or personnel may result direct indirect or scattered exposure to eyes or skin Damage to equipment or DANGER This connector emits visible and invisible laser radiation Avoid personnel may result This is a Class IV laser product Connector type Fiber SMA 146 eDrive User Manual
66. data output 3 Receive Data Serial data input 4 Data Terminal Ready Reserved 5 Signal Ground G Signal reference 6 Data Set Ready 0 Reserved 1 No connection 8 No connection 9 No connection eDrive User Manual 135 Appendix B Connector Interfaces RS 232 Channel 2 This connector provides a general purpose RS 232 serial port but is supported for maintenance and custom applications only Consult factory for options For RS 232 communications with a standard PC serial port use a straight through male to female serial cable See the appendix Accessories for ordering information 136 Connector type 9 position D sub receptacle Pin Name Type Function 1 No connection 2 Transmit Data 0 Serial data output 3 Receive Data Serial data input 4 Reset Reserved for factory test 5 Signal Ground G Signal reference 6 No connection 7 No connection 8 No connection 9 No connection eDrive User Manual RS 485 Appendix B Connector Interfaces This connector provides a general purpose RS 485 serial port It may be used for serial port remote control or in custom applications In addition to the serial port function there are two trigger outputs which may be used to trigger external Array Interface Modules AIM Consult factory for options Connector type 9 position D sub plug Pin Name Type Function 1 Trigger 1 0 Trigger Econ ae AM 2 Trigge
67. e 130 rear panel 6 electrical specifications 125 emergency stop switch 79 eDrive User Manual emission button 77 emission indicator 77 end of life handling xi error displays 124 errorsserial framing 50 ESD viii Ethernet 44 147 and reformatting 54 cable 44 gateway address 44 hub 44 IP address 44 message framing 52 parameters 109 port configuration 52 subnet mask 44 switch 44 testing 45 EU directives xi excess power 19 exposed circuitry vii external power supply 27 external sensors 138 external trigger 15 F factory defaults 114 failures vii fiber optic cable 26 output 146 fiber pump source 26 fine adjustments 24 first pulse suppression See FPS forward voltage drop 28 FPS 38 delay 39 modulation type 39 41 parameters 39 power control 41 settings 98 start power 39 window length 39 eDrive User Manual Index framing errors 50 front panel eDrive 3 eDrive Aero 5 eDrive Nitro 5 front panel controls 76 function number 50 functions Modbus 54 fuse rating vii fuse selection 7 fuses vii G gate input 15 gateway address 44 gating 15 menu 105 options 105 general features 1 ground vii building 8 chassis viii earth vii H hardware faults 124 hazards vii hookup wire 34 host network card 47 hub Ethernet 44 ID channel 118 electronic 115 expansion module 117 front panel 115 processor 115 inductance 163 Index an
68. e User Manual Operating Basics the menu system and parameter options Refer to the user guide of the laser for specific settings required for operation Setting the eDrive Operating Limits To set your eDrive to help prevent accidental overdrive follow these steps 1 Make sure the eDrive is powered on 2 From the main menu select Channel Setup gt Channel 1 gt Set Current Limit Use the selection knob to set your maximum current amplitude to a value considered safe for the intended array The eDrive will not allow the current amplitude to be set higher than the limit 3 Ifthe driver is in pulsed mode from the main menu select Channel Setup gt Channel 1 Set Duty Cycle Limit Use the selection knob to set your maximum duty cycle to a value considered safe for the intended array The eDrive will not allow the duty cycle to be set higher than the limit Setting the Power Supply This section describes how to properly set the power supply When selecting a power supply to use with eDrive models with no integral supply you should select a power supply that provides a regulated voltage output with less than 0 5V ripple Additionally it is essential that the power supply chosen provide both overcurrent protection and short circuit protection For pulsed applications be sure your supply can provide the required average power for the pulse characteristics External Supply This procedure assumes that there is a load connec
69. e e 4 FRONT PANEL EDRIVE NITRO AND AERO cesses enne enne 5 REAR PANEL EDRIVE NITRO AND 111 eene 6 INSTA ATTON 223 cs cove cui ve tee bv eie eei eee E T ees T Input POWER USt be Rete PRESE ees 7 ier sini 7 BASIG oet ecd eee eese ee ete eere ero or ee Pee e E e Ped e ee ee c 8 Chassis Ground Connection cccceseeseesccccccessesceccccsessesescecccceseeeaeeceeeees 8 Interlock 5 1 8 Array Power Connections n ete te e eed 9 Signal Connections eese et ee e RE RR redes 10 eDrive Coolant 5 00000 0 00 eene 10 UNDERSTANDING DRIVER FUNCTIONS 4 ee 11 EDRIVE BLOCK 12 EDRIVE NITRO BLOCK 002 0 4 00 12 EDRIVE AERO BLOCK DIAGRAM eee eee 13 EDRIVE 13 Configuration 220 13 Configuring Safety Settings 13 TIMING ENGINE Moin 20 eee eee ette eae evene eet eaae te oe 14 eDrive User Manual 1 Tabl
70. e lists all read write bits defined in the eDrive Any bit addresses that are not in the list are reserved and should not be used These data elements are accessible using functions 01 and 05 Name Addr Description OFF Laser Emission Off Emission 0 ON Laser Emission On OFF The standby state is inactive Enable Standby 1 ON The standby state is active Commanding Emission to OFF will resetthis bit External Trigger 2 OFF The eDrive will run on internal triggering from the Timing Engine ON The eDrive will run on external triggering using the Trigger G ate input Internal Trigger OFF The internal trigger is free running Galing 3 ON The Trigger Gate input will be used to gate the internally generated trigger pulses OFF z The shutter is always closed ON The shutter opens when emission is active Clear Fault 5 Setthis bitto clear existing eDrive faults OFF RF AO Q switch driver is disabled Shutter 4 Q5W Enable ON RF AO Q switch driver is enabled OFF Q switch First Pulse Suppression is disabled FPS Enable 4 ON Q switch First Pulse Suppression is enabled Channel 1 16 OFF Channel 1 Array Interface Module is disabled Enable ON Channel 1 Array Interface Module is enabled OFF QCW pulsed operation is selected ON operation is selected Note This bit can only be changed when the eDrive is not Active and channel 1 is disabled QCW equipped models only OFF Disable current ramping fo
71. e of Contents TRIGGERING AND 8 15 Modes 15 temet etiem elle 15 POWER 17 UNDERSTANDING EDRIVE OPERATING LIMITS eee 19 1 eT 20 eDrive esaet a VIR UM UE 21 OPERATING BASICS 23 POWERING THE EDRIVE ON AND 23 USING THE SELECTION 24 NAVIGATING THE MENU 5 5 5 24 CONFIGURING AND TESTING CHILLER OPERATION ee 25 SETTING THE EDRIVE OPERATING 4 44 4442 2 25 USING THE EDRIVE AERO FIBER PUMP SOURCE 000 00000 26 SAIety tret p eta ee Uem tn bbs 26 Config uratlon een iUic p oe tese bs tentat 26 SETTING THE EDRIVE OPERATING LIMITS eee 27 SETTING THE POWER SUPPLY 0 44 27 External Supply eot igs sentences teu re aoo 27 Internal Supply idet te tee ts 29 PULSE WAVEFORM 5 5 31 Waveform Characteristics and Supply 32 Waveform Characteristics and Pulse Width esee 33 Waveform Characteristics and Standard Hookup Wire 33 Waveform Characteristics and Controlled Hookup Wire
72. eDrive and to terminate the umbilical conduit from the laser system Includes mounting hardware CEO UMAN 0001 User Manual This user manual d me A CEO UMAN 0013 CD ROM The CD ROM includes the user manual and LabView drivers Additional documentation will be added as itis released A 88 015 10 Keys These keys required to power on the eDrive eDrive User Manual 151 Appendix C Accessories Optional Accessories The following accessories are not included with your eDrive but can be purchased separately Picture Item Number Description 88 004 10 AC Power Kit Argentina IRAM 2073 1982 250V 10A 50Hz Includes new fuses 5 88 005 10 AC Power Kit Australian AS NZS 3112 2000 250V 10A 50Hz Includes new fuses 88 006 10 AC Power Kit China 250V 10A 50Hz Includes new fuses 88 007 10 AC Power Kit Continental European CEE 7 7 250V 10A 50Hz Includes new fuses 88 08 10 AC Power Kit Denmark Danish Standard DK 2 1A 250V 10A 50Hz Includes new fuses 88 009 10 AC Power Kit India South Africa BS 546 250V 10A 50Hz Includes new fuses 88 010 10 AC Power Kit Israel S116A3 250V 10A 50Hz Includes new fuses 88 01 10 AC Power Kit Italy CEI 23 16 VII 250V 10A 50Hz Includes new fuses e AC Power Kit J J 15 8303 125V 15A 50Hz 501210 Includes new fuses
73. eatedly System Controller Status Firmware Wersion 1 5 2 Warrants Timer 2 H 52 System Controller Status Electronic ID BAZIE TASES EZA MAC ID z9BE System Controller Status Processor 2 System Controller Status Address 132 168 1 14624 132 128 1 254 114 eDrive User Manual User Interface System Controller Status Front Fanel Firmware Wer amp Front Panel SCF PPL Hore eDrive User Manual 115 User Interface Press MENU to return to System Status Menu Press Expansion Note Only eDrive Nitro drivers have expansion modules System Status Meru Sus Ctrl Exranzion Channel 1 The eDrive will present consecutive screens of system information Press More repeatedly ExrFariion Module Status Firmware Wersion 1 8 8 Warrants Timer 2 He 52 Hore System Controller Status Module p SSEPSSESIS6Z21 Count 3 Fault Press MENU to return to System Status Menu Press Channel 1 System Status Meru Sus Ctrl Channel 1 116 eDrive User Manual User Interface The eDrive will present consecutive screens of channel 1 information Press More repeatedly Channel 1 Status
74. ect the laser system control and monitor signals to the eDrive Refer to Understanding Driver Functions for information about using this connector Connector type MS3472L16 26S Use mating connector MS3476L16 26P 144 eDrive User Manual Appendix B Connector Interfaces Pin Name Type Function This signal is used to drive an external laser on taser On Eamp 9 lamp on the laser housing Output is 24V Keep isolated from other circuits See Laser On Lamp 0 Application Examples This signal is used to drive an external shutter C Shutter 4 0 solenoid in the laser Output is 24V pulse width modulated to an average of 12V It is intended to drive a 12 15V actuator Outputis 24V for a brief energize period and drops to D Shutter 0 12 avg for continuous duty See Application Examples E Ground G Signal reference RS 485 Data 10 Serial data bus Consult factory for details G RS 485 Data 10 This ground open signal is used to indicate to the eDrive thatthe laser enclosure has been H Cover Interlock opened Shortto ground for normal operation See Application Examples This ground open signal is used to indicate to the eDrive that the coolant flow inside the laser Coolant Interlock system is insufficient to continue safe operation Short to ground for norma operation See Application Examples This ground open signal is use
75. ed If the driver is an eDrive 2U the model number ends at this point eDrive Nitro Model Number If the driver is an eDrive Nitro continue the base model number above with these characters Model 9 Model 10 12 Model 13 14 This character is always a These characters indicate the rated voltage of the internal power supply in volts The range of this field will typically be 3 to 25 volts over the expected output voltage depending on delivered current If the value is less than 100 only two digits will be utilized These characters indicate the maximum rated current of the internal power supply in amps The range of this field will typically be 20 to 100 amps eDrive User Manual Model 15 Model 16 Model 17 20 Appendix A Specifications This character indicates the number of Q switch RF outputs provided a single output RF output is provided 27MHz 50W D a dual output RF output is provided 27MHz 100 X no RF driver is utilized 99 This character is always a These characters are for factory use only The model number ends at this point eDrive Aero Model Number If the driver is an eDrive Aero continue the base model number above with these characters Model 9 Model 10 12 13 Model 14 17 Model 18 Model 19 Model 20 22 Model 23 Model 24 27 eDrive User Manual This character is always a These characters
76. eld consists of two bytes It is always set to 0x0000 eDrive User Manual Communications Length This field is used to indicate the length of the message It is a byte count of all of the following fields including the Unit Identifier Function Code and Data This field consists of two bytes Unit Identifier This byte is the eDrive device address Valid slave device addresses are in the range 0 247 decimal The individual slave devices are assigned addresses in the range of 1 247 This field must match the eDrive address assigned with the front panel See Comm Setup gt Ethernet Setup Set Address Function Number This field is the function number Valid codes are in the range 1 255 decimal but not all function numbers are used This field consists of one byte Data This field contains all the data for the message The length of this field is dependant on the function number A message frame is shown in the figure below MBAP r 1 Transaction Protocol ni Identifier Identifier Length Identifier Fue uu Data 2 bytes 2 byte 2 bytes 1 byte 1 byte n bytes T gt eDrive User Manual 53 Communications Function Description 54 The following functions are identified in the Modbus standard for communications between the master and slave devices In each case the query and response is shown for the serial communications method In general to reformat for Ethernet communications the
77. elope that occurs during a first pulse suppression event eDrive User Manual 39 Operating Basics Some of these parameters are identified graphically in the figures below 40 eDrive User Manual Operating Basics FPS Power Control Utilizing the advanced Q switch power control feature the eDrive can control the optical power of the laser system without changing the array current It does this using the Q switch as a continuously variable optical gate rather than just an on off switch Patent pending Notice the difference between the RF amplitude in the two oscillograms below and the previous one The image below shows a significant amount of RF energy in the Q switch windows even after FPS has completed This extra RF energy will hold off part of the laser power resulting in reduced optical output By manipulating the various parameters you can achieve a configuration that is particularly tuned to your application FPS Modulation Type The FPS modulation type or envelope see item 7 above defines a decay function that is one of the following function types e Linear e Exponential e Sine e Sine Squared These function types may be helpful in fine tuning the FPS operation of your laser system For most applications the linear function is recommended linear ipe ta EE exponential NES TER sine 2 T gt eDrive User Manual 41 Operating Basics Connecting an External Q switch Driver
78. ent may be impaired Only qualified personnel should perform service procedures To Avoid Fire or Personal Injury Use Proper Power Cord Use only the power cord specified for this product and certified for the country of use Connect and Disconnect Properly Do not connect or disconnect cables when they are connected to a voltage source Ground the Product This product is grounded through the grounding conductor of the power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded The power cord must be connected to a properly grounded wall outlet socket Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and marking on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers Do not operate this product with covers or panels removed Use Proper Fuses Use only the fuse type and rating specified for this product Avoid Exposed Circuitry Do not touch exposed connections and components when power is present Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Provide Proper Ventilation Refer to the manual s installation instructions for details on installing the product so it has
79. enu select Channel Setup Channel 1 Set Current Use the selector knob to select a nominal current level for your array or laser 3 Press EMISSION After a pre fire state the eDrive begins to drive the array 4 Monitor the set and sensed current displayed on the eDrive front panel They should track each other to within 2 or less If the eDrive fails to reach the commanded current amplitude level it may be necessary to increase the supply voltage slightly The eDrive models with internal power supplies are adjustable by approximately 44 Adjust the supply voltage by continuing with the steps below 5 Carefully position the eDrive to allow easy access to the rear panel 6 Locate the voltage control access ports on the rear panel as shown in the figure Voltage adjust ports 7 Using a plastic adjustment tool turn one or both of the controls clockwise to achieve higher supply voltage Note that some eDrives may have only one power module and only one control may be operational Monitor the sensed current on the eDrive front panel As the power supply voltage is increased the sensed current should continue to rise until it reaches the set current level When this occurs turn the setting one more turn to provide a small additional margin 30 eDrive User Manual Operating Basics CAUTION Using an electrically conductive adjustment tool could result in 2 personal injury or equipment damage Do not i
80. er gate input 15 142 triggering 15 menu 105 options 105 two hole compression lugs 10 148 U unit identifier 52 used equipment xi user interface reference 75 user interlock 9 using the Ethernet interface 44 utility functions 113 V validated connection 45 varying supply voltages 36 ventilation vii viewing angle 113 voltage control access ports 30 dropout 28 forward drop 28 power supply 27 167 Index range 7 voltage current product 19 waveform characteristics 31 and controlled hookup wire 36 and pulse width 33 and standard hookup wire 34 168 and standby current 37 and supply voltage 32 weak current pulse 33 WEEE xi wire 34 and loop area 37 Litz 37 wire gauge 9 eDrive User Manual
81. er will dynamically assign IP addresses to machines on the network that request them If you want your eDrive to request an IP address from the DHCP server and configure its own network parameters enable the DHCP function Once the DHCP function has been enabled and an IP address is assigned by the server you can discover the IP address by using the front panel From the main menu select Utility Functions System Status gt Sys Ctrl and press More repeatedly until the IP address is displayed TCP IP Address Subnet Mask and Gateway Address If you wish to set your own TCP IP network parameters contact your system administrator for guidance on selecting the appropriate parameters Ethernet Message Framing 52 This section describes the message framing or encapsulation of the control protocol when using the Ethernet port as the communications channel The first part of the message is referred to as the Modbus Application Protocol Header or MBAP and includes four fields Transaction Identifier Protocol Identifier Length and Unit Identifier Refer to the Modbus Specification for a full description of the protocol Transaction Identifier This field is used for transaction pairing Since the message may be split over several TCP IP packets this field helps to reconstruct the packets into the correct order This field consists of two bytes Protocol Identifier This field is used to identify the protocol as Modbus This fi
82. erlap with the silent interval of the next message A message frame is shown in the figure below Message Start Address Function Data Checksum Message Stop gt 3 5 char times 1 byte 1 byte n bytes 2 bytes gt 3 5 char times T gt Framing Errors The entire message frame must be transmitted as a continuous stream If a silent interval of more than 3 5 character times occurs before completion of the frame the eDrive flushes the incomplete message and assumes that the next byte will be the address field of a new message If a new message begins earlier than 3 5 character times following the previous message the eDrive will consider it a continuation of the previous message This will set an error since the value in the final CRC field will not be valid for the combined messages If the eDrive detects a transmission error the message will not be acted upon The eDrive will not construct a response to the master Thus the timeout will expire and allow the master to handle the error Note that eDrive User Manual Communications a message addressed to a nonexistent slave device will also cause a timeout eDrive User Manual 51 Communications Ethernet Port Configuration The Ethernet communications parameters can be set using the front panel interface Refer to the section User Interface for an explanation of how to set the Ethernet parameters DHCP Most Ethernet network installations include a DHCP server This serv
83. esent 21 amp Rotate Dial to Change 1 96 eDrive User Manual User Interface Press Set FPS Settings to access the Q switch first pulse suppression feature Refer to the chapter Operating Basics for a description of these features GSwitch Setur Menu Set Set Q Switch FFS Settings Hore A Press FPS Disabled Enabled to toggle the state of the FPS function Setur Meru Set Set Set FFS Start Modul atior Disabled Power Length Press Set Start Power to adjust the starting power of the Q switch driver output during first pulse suppression FFS Setur Menu Set Set Set FFS Start Modulation Disabled Power Length Use the selection knob to set the value Press Done to enter the value Set Switch U utrut Power Present zx Rotate Dial to Change 1 eDrive User Manual 97 User Interface Press Set Window Length to adjust the duration of the Q switch first pulse suppression window FFS Setur Meru Set Set Set FFS Start Window Haodulation Disabled Power Use the selection knob to set the value Press Done to enter the value Set FFS Window Length Fresent Rotate Dial to Change 1 us Done Press Set Modulation Type to adjust the type
84. ess Q switch Enabled to toggle the Q switch enable Make sure that it is enabled G 5uitch Setur Set Switch Set Enabled Freauenca Width Press Set Frequency to set the Q switch repetition frequency GSwitch Setur Set G Suitch Set Window Enabled Freauenca Width Use the selection knob to set the value Press Done to enter the value Set G Switch Fresuercy Present Value 1 68 kHz Rotate Dial to Change 1x 1 Dore eDrive User Manual 95 User Interface Press Set Window Width to set the width of the Q switch window G 5uitch Setur Menu Set i 5uitch Set Wirda Enabled Freauenca Width A Use the selection knob to set the value Press Done to enter the value Set Ceswitch Window Width Present S H us Rotate Dial to Change Walue 1 Press More to access additional options GSwitch Setur Menu Set Q Swi tch Set Window Enabled Freauencua Width Hore Press Set Q Switch Power to access the Q switch power modulation feature Refer to the chapter Operating Basics for a description of this feature G 5uitch Setur Menu Set Set i 5uitch FFS Settings Use the selection knob to set the value Press Done to enter the value Set Switch Oubeut Power Pr
85. f data Reply from 192 168 1 34 bytes 32 time 6ms TTL 255 Ping statistics for 192 168 1 34 Packets Sent 1 Received 1 Lost 0 1055 Approximate round trip times in milli seconds mem Eman Masi Ema AAA eDrive User Manual 45 Application Examples Configuring a Laser to Work with eDrive The eDrive provides several interfaces to support a laser eDrive The standard eDrive has a connector labeled External Sensors which includes Laser On Light and Shutter Enable Output signals Both signals can directly drive up to 1A The figure below shows a schematic view of how the external circuit might be configured OSUB SP MATES WITH EDRIUE EXTERNAL SENSORS SOLENOID ORIVER GROUND eDrive Nitro and Aero The eDrive Nitro and Aero have a laser interface connector This interface provides numerous signal features for interfacing with your laser Refer to Connector Interfaces for more details on each signal The figure below shows a schematic representation of how the external circuit might be configured MS3476L16 26P MATES WITH EORIVE LASER INTERFACE SHUTTER SOLENOID INTERLOCK COOLANT SUITCHES COVER Q SHITCH 46 eDrive User Manual Communications This chapter contains information that you need to understand to set up a communications link for remote control of your eDrive To communicate with your eDrive effectively you need to learn about the following functi
86. ge Optronics sales and service office EXCEPT AS PROVIDED IN THIS SUMMARY OR THE APPLICABLE WARRANTY STATEMENT CUTTING EDGE OPTRONICS MAKES NO WARRANTY OF ANY KIND EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PUPOSE IN NO EVENT SHALL CUTTING EDGE OPTRONICS BE LIABLE FOR INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES Table of Contents TABLE OF CONTENTS oe ees ooo eo erano etta re tappa Fe oe rosa aee vea reae ERU I GENERAL SAFETY SUMMARY eee ee ee eee eee enean ee VII TO AVOID FIRE OR PERSONAL VII SAFETY TERMS AND SYMBOLS eee emen eene emen enne ener eene nen VIII M PH IX CONVENTIONS er e e Oe X PRODUCT END OF LIFE XI CONTACTING CUTTING EDGE OPTRONICS eee eene enne XII GETTING STARTED ecco so se eo to o eto ane e eto ae Pe ee E Ern ae ing a ep 1 GENERAL 6 n eee ee eee 1 EDRIVE FAMILY 2 FRONT PANEL 2 02 241 12 0 nennen 3 REAR PANEE EDRIVE esee rer core epe e
87. hange 1x 1 Press Set Window Width to set the width of the Q switch window Pulsed GeSwitch Setur Menu Set Set Q Swi tch Switch Window Enabled Ffset Width Use the selection knob to set the value Press Done to enter the value Set Ceswitch Window Width Present Walue 1 68 us Rotate Dial to Change 1 100 eDrive User Manual User Interface Pulsed Q switch Setup Menu eDrive Nitro and Aero This menu supports configuration of the Q switch operation in QCW pulsed mode A NOTE The Q switch menu will display either CW or Pulsed mode depending on the mode selected for Channel 1 This is the channel setup menu Press Q Switch to select Q Switch setup menus Channel Setur Meru Internal Trigger Channel 1 G switch Enabled Press Q Switch Enabled to toggle the Q switch enable Make sure that it is enabled Pulsed GeSwitch Setur Menu Set Set tck Switch Window Enabled rfzet Width Hore Press Set Q Switch Offset to set the Q switch offset relative to the end of the current pulse Pulsed GeSwitch Setur Menu Set Set Suitch Switch Window Enabled rfzet Width eDrive User Manual 101 User Interface Use the selection knob to set the value Press Done to enter the value Set C Switch Offset Present 390 06 uz Rotate Dial to Ch
88. he supply can be much less than in CW mode The QCW capable eDrive models contain a storage capacitor that delivers most of the actual pulse current to the arrays During the idle phase of the output waveform the supply charges the capacitor in preparation for the next pulse For this operation the average current required from the supply can be estimated from the equation Ipeak D eDrive User Manual 17 Understanding Driver Functions 18 where D is the duty cycle of the output pulse waveform The duty cycle D is the percentage of the period that the signal is actively driving current It can be calculated from the equation D PW PRF where PW is the pulse width and PRF is the pulse rate frequency of the laser When choosing connector contacts and wire sizes calculate the RMS current of the pulsed waveform using equation Tims Ipeak i v D where D is the duty cycle of the output pulse waveform eDrive User Manual Understanding Driver Functions Understanding eDrive Operating Limits The eDrive must dissipate any power provided by the power supply that is not delivered to the array If the power supply voltage level is too high or the delivered current it too high the excess power voltage current product will add heat to the AIM possibly resulting in an overheating condition To help the user understand the limits on these parameters two operating envelope charts for the eDrive have been provided The
89. high word first followed by he low word Channel 2 Slew 38 This value represents the slew rate for channel 2 Rate Range 1to 3000 LSB value 1 amp second This value represents the current level for channel 3 when the eDrive is Channel 3 48 actively driving the array output in either CW or QCW modes See Standby Active Current Current below Units amps A Range 0 to 1 000 LSB value 0 1A Channel 3 This value represents the current level for channel 3 when the eDrive is in Standby Current 49 standby CW or QCW mode or during the inactive portion of the QCW pulse Units amps A Range 0 to 1 000 LSB value 0 1 Channel 3P ulse 50 This value represents the width of a current pulse for channel 3 Itis only Width High used when the channel is in QCW mode eDrive User Manual 69 Communications 70 Channel 3 Pulse Range 10 to 100 000 limited by the system frequency to prevent the pulse width from exceeding the period LSB value 0 1 5 Width Low 1 For this value to be properly written write to the high word first followed by he low word This value represents the delay of the current pulse of channel 3 relative to Channel 3 Pulse 52 the trigger Itis only used when the channel is in QCW mode Delay High Range 1to 100 000 LSB value lys When using internal triggering the range is limited by the system frequency So the pulse ends before the start of the nexttrigger When using external
90. hiller faults 124 eDrive User Manual current monitor 123 errors 124 gating 105 hardware faults 124 main 80 q switch faults 125 q switch setup CW 93 q switch setup QCW 100 quick 77 quick CW 120 quick QCW 121 triggering 105 menu button 24 76 menu system navigating 24 message end 50 message frame 50 message length 52 message start 49 Modbus and MBAP 52 checksum 50 data field 50 device address 49 Function 01 Read Output Bits 55 Function 02 Read Input Bits 56 Function 03 Read Holding Registers 57 Function 04 Read Input Registers 58 Function 05 Write Output Bit 59 Function 06 Write Single Holding Register 60 Function 11 Read Communications Status 61 Function 16 Write Multiple Holding Registers 62 function number 50 message end 50 message length 52 message start 49 protocol identifier 52 read write bits 63 read write registers 68 read only bits 65 eDrive User Manual Index read only registers 71 RTU 48 TCP 48 transaction identifier 52 unit identifier 52 mode operating 25 model numbers 131 modes triggering and gating 15 modulation 39 MOSFET 19 N network connection testing 45 network node naming 45 networked PC 44 noise 125 126 128 operating basics 23 operating envelope 19 operating limits 19 27 operating mode 25 operating point 31 output current 125 126 128 output pulse 18 overheating 19 overshoot 34 P
91. if you need help selecting these parameter values Communications Setur Menu 252 R2 zX Channel amp Channel 1 5 455 Ethernet Setur Setur Se ur Setur Press DHCP Disabled to toggle DHCP to the enabled state When DHCP is enabled the eDrive will obtain its Ethernet parameters from a DHCP server on the network Ethernet Setur Meru DHCP Set Set Set Disabled Static IF Function Address Press Set Static IP to set the static IP parameters Ethernet Setur Meru DHCP Set Set Set Disabled Static IF Function Address Press Set IP Address to set the IP address Static Setur Meru Set Set Set Address Mask 108 eDrive User Manual User Interface Use the selection knob to set each value Press lt or gt to switch between parameters Press Done to enter the values Set Static Address i924 168 1 46 Rotate lal to Change Walue 1 lt gt Press Set Mask to set the IP address mask Static Setur Set Set Set Address Mask Gateway Use the selection knob to set each value Press or gt to switch between parameters Press Done to enter the values Set Mask Value pod 255 259 Rotate Dial to Change Walue a gt Press Set Gateway to set the gateway IP address 1 Static Setur Menu Set Set Se
92. igger input and to each other Control of the gating function eDrive User Manual Understanding Driver Functions Triggering and Gating Modes The eDrive can operate using an internal timing source to provide triggering or can utilize an external trigger source The various triggering scenarios are outlined in the following table Internal External Trigger Trigger Gate Mode Description Trigger Gating Inputt cw No triggering is used since the outputs are on OFF OFF continuously No external triggering is used since the trigger OFF OFF CW with internal requency is internally set q switch triggering The trigger gate input may be configured to operate as a OFF ON Gate gate signal to halt all internal triggering The trigger gate input is configured as an external trigger supplied by the user ON Trigger The eDrive does not control the frequency No external triggering is used since the trigger requency is internally set OFF OFF QCW with internal Q switchi b bled or disabled in this mod triggering Q switching can be enabled or disabled in this mode The trigger gate input may be configured to operate as a OFF ON Gate gate signal to halt all internal triggering Anexternal trigger is supplied by the user n external The eDrive does not control the frequency ON Trigger Q switching can be enabled or disabled in this mode External Trigger and Internal Trigge
93. ignals is asserted eDrive Nitro Aero only Correct the fault and then press Clear If you cannot clear the fault at the connector interface power the eDrive off and then on to restore normal operation Note that the internal Q switch driver has multiple fault modes The specific fault Refer to the chapter Operating Basics for details on this feature Press Q Switch Enabled to toggle the state of the RF driver to disabled if you wish to continue using the driver without correcting the fault y FAULT DETECTED O Switch 77222 Fault Switch Enabled Clear Press Clear to clear the fault display after correcting the fault XXX qu FAULT DETECTED Butch 77222 Fault Switch Enabled Clear eDrive User Manual Appendix A Specifications Operational Specifications Air Cooled 300A Water Cooled 300A CW QCW QCW Amplitude 100 096 100 096 Output Current 50A D C 70A D C 8 504 9 704 15 096 D C lt 50 0 Q 140A Q 100A 12 596 D C 15 096 D C n Q 160A Td Q 200A 10 096 D C 7 096 77 190 UT 9 300A 57 5 D C Eus Q 240A 7 lt 5 0 D C 270 PES n Em 4 096 D C n 9 300A Display Resolution 100mA 100mA 100mA 100mA Accuracy 2 2 2 2 Noise 200mA 200mA 200mA 200mA Air Cooled 100A
94. indicate the rated optical power output in Watts This character indicates the operational modes of the driver C CW operation only P CW or QCW pulsed operation These characters indicate the optical output target wavelength in nanometers 99 This character is always This character indicates the number of Q switch RF outputs provided a single output RF output is provided 80 2 15W B a dual output RF driver is provided 80MHz 30W X no RF driver is utilized These characters indicate the diameter of the output fiber core in microns ee This character is always a These characters are for factory use only 131 Appendix Specifications 132 Model Number Examples The part number ED4P AXW 2037D 0010 indicates that this unit 1 eDrive in a 40 enclosure is capable of both CW and QCW operation 1s water cooled has a power supply rated for 20V 37A and has a dual output RF Q switch driver The part number ED4L AXA 130C0808 A600 0010 indicates that this unit is an eDrive in 40 enclosure contains a fiber pump source eDrive Aero 1s air cooled has a 130W optical power output operates in CW mode only delivers output power at 808nm has a single 80MHz 15W RF output delivers its output into a 600 micron fiber and has a dual output RF Q switch driver eDrive User Manual Appendix B Connector Interfaces This append
95. indicator above the button Emission Button and Indicator The EMISSION button provides control over the state of the current output of the eDrive The state of the output is provided with the white emission indicator above the button Refer to the state table describing the function eDrive User Manual TT User Interface State Functional Behavior Notes Front Panel Laser On Shutter Emission Light Enable Beeper Light Signal Signal Current Output OFF This is the safe state that the unit powers up into off off off Off Off PREFIRE When the output is commanded on the eDrive enters this state for five seconds to alert the users that the output is about to become active Off Blinking Blinking Off Beep Beep ACTIVE This is the state that drives Commanded the laser to emit light current level On On On Off This state can only be entered when it is enabled and STANDBY commanded remotely This Standby Blinking Blinking Off Off state will deliver a standby current if so configured This state is entered upon detection of a fault condition FAULT The fault must be identified Off Off Off Off Off removed and cleared before normal operation may resume Selection Knob The selection knob provides the means for quickly selecting wide range values in the eDrive Operation is straightforward When the display indicates use the selection knob to make adjustment to the par
96. it initiates all messages The eDrive responds by taking the appropriate action and returning the requested data With serial communications the master can address individual slaves or can initiate a broadcast message to all devices on thelink Slaves respond to messages sent directly to them eDrive User Manual Communications Serial Port Configuration The serial communications parameters can be set using the front panel interface Refer to the section User Interface for an explanation of how to set the serial parameters Serial formats allowed for communications include 8N1 8N2 8E1 801 Data is transferred bit wise serial with the following formats 8NI ST DO DI D2 D3 04 05 D6 D7 SP 8N2 ST DO D1 D2 D3 D4 05 06 D7 SP SP 8EI ST DO D1 D2 D3 D4 05 06 D7 EP SP 801 ST DO D1 D2 D3 05 06 07 SP CREER LEE EE ST STart bit Dx Data bit SP StoP bit EP Even Parity bit OP 2 Odd bit Serial Message Framing This section describes the message framing of the protocol when using the serial port as the communications channel Message Start Messages start with a silent interval of at least 3 5 character times This is most easily implemented as a multiple of character times at the baud rate that is being used on the network Device Address The firs
97. iver were to shift during installation For the 2U eDrive it is recommended that two people install the unit into a rack if no supporting rails are used The first person should support the driver while the second installs rack mounting screws Rails are recommended whenever possible for more robust installation For the eDrive Nitro and Aero it is recommended that two people install the unit into a rack Supporting rails should be used Lift the driver into place and then fasten the front panel flanges into place eDrive User Manual 7 Getting Started A WARNING Using the eDrive Nitro or Aero without mounting rails can result in serious damage to the driver or personal injury A rack mounting kit is available as an accessory This kit includes rack mounting rails and mounting hardware Basic Connections Chassis Ground Connection A chassis ground stud is provided to facilitate connection of the eDrive chassis to the rack or building ground The cable kit is available as an optional accessory and includes a grounding cable and hardware Interlock Connections Most laser system failures occur when the system is operated without the benefit of protection features Proper use of the eDrive system interlocks will minimize the possibility of system failure due to overheating Coolant Interlocks To connect a chiller to the eDrive first remove the coolant interlock bypass connector from the chiller connector then attach the c
98. ix contains information on the various connector interfaces present on the eDrive and eDrive Nitro These connector interfaces include RS 232 Channel 0 RS 232 Channel 1 RS 232 Channel 2 RS 485 External Sensors eDrive only Chiller CAN Bus Q switch Driver eDrive only Trigger Gate In Trigger Out Current Monitor Out Q switch Interlock eDrive Nitro Aero only RF Out 1 amp 2 eDrive Nitro Aero only Interlock BNC Interlock Plastic housing eDrive Nitro Aero only Laser Interface eDrive Nitro Aero only Fiber Optic Output eDrive Aero only Ethernet Power Supply Input Lugs some models Array Output Lugs some models Array Output Connector some models AC Power Inlet eDrive User Manual 133 Appendix B Connector Interfaces Key Type Meaning No connection Input 0 Output 10 Input O utput Bidirectional P Power G Ground Signal Reference 134 eDrive User Manual RS 232 Channel 0 1 Appendix B Connector Interfaces This connector provides a general purpose RS 232 serial port It may be used for serial port remote control or in custom applications Consult factory for options For RS 232 communications with a standard PC serial port use a straight through male to female serial cable See the appendix Accessories for ordering information Connector type 9 position D sub receptacle Pin Name Type Function 1 No connection 2 Transmit Data 0 Serial
99. l 155 Appendix D General Care and Cleaning 156 eDrive User Manual Appendix E CRC Calculations This appendix explains the use of a cyclic redundancy check CRC in the serial protocol to ensure the integrity of the transmitted data To help implement this feature in your control software the following have been provided A description of the algorithm used to generate a Aflow chart of the algorithm used to generate a CRC Acode example of the algorithm used to generate a CRC Overview The CRC value is calculated by the master which appends the CRC to the message The eDrive recalculates a CRC when a message is received and compares the calculated value to the value it received from the master If the two values are not equal an error is generated eDrive User Manual 157 Appendix E Calculations Procedural Description A procedure for generating a CRC follows 1 158 Load a 16 bit register with hex value OxFFFF 051111 1111 1111 1111 Call this the CRC register Exclusive OR the first 8 bit byte of the message with the low order byte of the 16 bit CRC register putting the result in the CRC register Check the LSB of the CRC register a Ifthe LSB is 0 shift the CRC register one bit to the right filling the now empty most significant bit MSB with 0 b Ifthe LSB is 1 shift the CRC register one bit to the right filling the now empty most significant bit MSB with 0 Now exclusi
100. load is a 12 bar array and the eDrive is set to deliver a 30A pulse to the load The oscilloscope is set for 5A div vertically and 50 0us div horizontally Set the voltage lower than the expected load voltage Increase the voltage in increments of 1 volt until the waveform looks flat Refer to the oscilloscope graph below Note that when the power supply voltage is set at too low amplitude the current pulse is weak far below its commanded level and longer duration than anticipated As the supply voltage is increased to the array voltage and beyond the current pulse amplitude reaches its commanded level of 30A and the current pulse width reaches its commanded duration The shape of the waveform becomes flat at its maximum amplitude and exhibits good transient characteristics Since the array consists of 12 bars the expected array voltage is approximately 12 1 8V or 21 6V However since the eDrive requires some margin over the array voltage in this case 3 4V the desired waveform characteristics are not realized until the supply voltage reaches 25 0V eDrive User Manual Operating Basics Waveform Characteristics and Pulse Width The figure below shows the current pulse waveform characteristics for a long current pulse The load is a 12 bar array and the eDrive is set to deliver a 30A pulse to the load The oscilloscope is set for 5A div vertically and 100 0us div horizontally Note that the amplitude of the pulse begins to decre
101. n of the power wiring in the laser is critical if high performance is to be achieved Make note of the following issues Use sufficiently heavy gauge wiring or special low inductance wiring to connect your driver to your laser system Recommended wire sizes are shown in the table Average Current Wire Size 0 to 25 10 AWG 25 to 50 8 AWG 50 to 100A 6 AWG Be sure to use wire rated for use at voltages at least as high as the voltages which will be connected to the lug terminals Do not use cables that are any longer than necessary Long cable lengths are undesirable for two reasons resistive losses and inductive effects Be sure to minimize inductive loading on the driver output by keeping the current loop area to a minimum This is very important for pulsed operation since it improves pulse waveform quality and enhances driver current regulation stability For ultimate performance a low inductance Litz wire cable or flat cable can be used on the driver output circuit Both cable types are available as optional accessories The eDrive power terminals are equipped with mounting holes for two hole compression lugs These lug types have two advantages over eDrive User Manual 9 Getting Started standard ring terminals contact quality and mechanical stability Since there are two fasteners per lug and a much larger contact area there will be lower contact resistance between the eDrive output terminal and the c
102. nel 2 Cycle Range 0 to 1000 LSB value 0 1 percent Channel 2 v ad limer 56 This value represents the number of hours accumulated on the warranty Channel timer of the channel 2 AIM Warranty Timer 57 Range 0 to 4 294 967 295 LSB value 1 second Low cnan 2 cw 58 This value represents the CW on time for channel 2 that current levels above nTime High 6A has flowed through the AIM Channel 2 CW as flowed through the AIM j 59 Range 0 to 4 294 967 295 LSB value 1 second On Time Low Channel 2 CW This value represents the CW power cycle count for channel 2 that indicates Power Cycle 60 how many times current flow has been turned on and off in CW mode Count High Range 0 to 4 294 967 295 eDrive User Manual Communications Channel 2 CW Power Cycle 61 Count Low Channel 2 Pulsed Mode 62 Shot Counter High This value represents the channel 2 shot counter Channel 2 Range 0 to 4 294 967 295 Pulsed Mode 63 Shot C ounter Low Channel 3 Firmware Version 80 X Srne 3 This value represents the firmware version of the channel 3 Array Interface irmware Version 81 Modul h ber d Y odule AIM The version number is represented as 2 Channel 3 Firmware Version 82 Z Channel 3 This value represents the amount of current presently flowing through Sensed Current 83 channel 3 If the eDrive is in pulsed mode and active the current reading during the ac
103. ng Driver Functions This chapter contains information on what you should understand about the primary functions of your eDrive in order to use it most effectively You will learn about the following eDrive functions Driver configuration The Timing Engine Triggering and gating The power train Understanding eDrive operating limits eDrive User Manual 11 Understanding Driver Functions eDrive Block Diagram The figure below shows a simple block diagram of the various functions of the standard eDrive and their relationship to each other Interface Connectors System Controller with Timing Engine Front Panel eDrive Nitro Block Diagram The figure below shows a simple block diagram of the various functions of the eDrive Nitro and their relationship to each other Output Terminals to arrays Array Interface Module Input Terminals from power supply Output Interface Terminals To Q switch Connectors to arrays RF System Array Driver Controller Interface with Timing Engine Module Front Power Panel Supply some models 12 eDrive User Manual Understanding Driver Functions eDrive Aero Block Diagram The figure below shows a simple block diagram of the various functions of the eDrive Aero and their relationship to each other Output Interface Fibe
104. nnel 1 output AIM Press Channel Enabled to toggle the channel enable Channel 1 Setur Meru Enable Channel Pulsed Set Enabled Made Current Press Enable Pulsed Mode to toggle between CW to QCW pulsed mode operation This operation is only allowed when the channel is disabled and the drive is inactive Channel 1 Setur Meru Enable Channel Pulsed Set Disabled Made Current Hore To proceed you must acknowledge the prompt Press NO to continue following along in this chapter See the Channel 1 Pulsed Setup Menu section for details Re enable the channel CONFIRM CHRHHEL 1 MODE CHAHGE sou want to continue changing this channel to PULSED MODE oreration YES Press Set Current to set the current amplitude Channel 1 Setur Meru Enable Channel Fulsed Set Enabled Made Current eDrive User Manual User Interface Use the selection knob to set the value Press Done to enter the value Set Channel 1 Current Fresent 28 Rotate Dial to Change J Press More to access additional options Channel 1 Setur Meru Enable Channel Pulsed Set Enabled Hode Current More Press Set Slew Rate to set the rate of the current ramp Set Slew Channel 1 Setur Menu Slew Set Control Stand Disabled Curren
105. ns of connecting lower power laser systems to the eDrive without using the power output lugs described above Connector type MS3472L14 4S Use mating connector MS3476L14 4P Pin Name Type A Array Output 0 Array Output 0 C Array Output 0 D Array Output 0 Function These contacts provide array power output up to 20A per pin eDrive User Manual 149 Appendix B Connector Interfaces AC Power Inlet This connector provides AC input power to the eDrive See Getting Started for input power requirements For 220V 240V operation the neutral N contact becomes a second line contact Connector type IEC 60320 C14 150 eDrive User Manual Appendix C Accessories This appendix describes the various accessories that are available for the eDrive All accessories standard and optional are available by contacting your local Cutting Edge Optronics sales office Standard Accessories Some of the following accessories come standard with your eDrive Picture Item Number Description gt 88 003 10 AC Power Kit North American NEMA 5 15 120V 15A gt 60Hz Includes fuses for both 120V and 240V operation H Bypass Connector Kit Use to bypass unused interface connectors and interlocks Includes three BNC shorting 88 013 10 connectors one interlock shorting connector and one 9 chiller bypass connector Terminal Shroud Use to safely cover the output lugs of 88 023 10 the
106. nsert electrically conductive tools into the openings of the enclosure of any eDrive model 8 Press EMISSION to return the eDrive to the standby state A WARNING Operating the eDrive with the load improperly connected or short circuited can result in damage to the load and the eDrive Whenever a new load connection is made or when there is a possibility that the load connection may have changed it is advisable that a brief test be made operating the driver at a low current setting of less than 1 0 Amp This will allow testing the connections prior to operation at high current levels which could result in excessive power dissipation on the eDrive Pulse Waveform Characteristics Using the power supply adjustment procedures outlined above will assist you in obtaining the best operating point for your eDrive and laser For ultimate performance waveform characteristics of the current pulse should be analyzed to make the final adjustments To monitor the current pulse characteristics connect an external clamp on current probe to the eDrive output or connect a BNC cable to the current monitor output Connect either the current probe or cable to an oscilloscope Follow the procedures outlined above for setting the power supply eDrive User Manual 31 Operating Basics 32 Waveform Characteristics and Supply Voltage The figure below shows the current pulse waveform characteristics for various power supply voltage settings The
107. of modulation used in the Q switch first pulse suppression window FFS Setur Meru Set Set Set FFS Start Window Modul at ior Disabled Power Lerath Tyre Use the selection knob to set the value Select from LINEAR EXPONENTIAL SINE SINE 2 Press Done to enter the value Set FPS Modulation Fresent Rotate Dial to Select Functionl LI HEAR 98 eDrive User Manual User Interface Pulsed Q switch Setup Menu eDrive This menu supports configuration of the Q switch operation in pulsed mode A NOTE The Q switch menu will display either CW or Pulsed mode depending on the mode selected for Channel 1 This is the channel setup menu Press Q Switch to select Q Switch setup menus Channel Setur Meru Internal Trigger Channel 1 G switch Enabled Press Q Switch Enabled to toggle the Q switch enable Make sure that it is enabled Pulsed GeSwitch Setur Menu Set Set tck Switch Window Enabled rfzet Width Press Set Q Switch Offset to set the Q switch offset relative to the end of the current pulse Pulsed GeSwitch Setur Menu Set Set Suitch Switch Window Enabled rfzet Width eDrive User Manual 99 User Interface Use the selection knob to set the value Press Done to enter the value Set C Switch Offset Present uz Rotate Dial to C
108. ons Communications overview Serial port configuration Modbus message framing and framing errors Ethernet port configuration Message function numbers queries and responses Datatypes accessible by each function Description of accessible data elements Using LabView drivers LabView is a Trademark of National Instruments Communications Overview The eDrive can interface with a host computer or controller using serial or Ethernet communications The eDrive acts as a slave in a master slave communications scheme With serial communications the eDrive can connect to the host point to point using an RS 232 serial link or can be part of a multi drop network using an RS 485 serial link For RS 232 communications with a standard PC serial port use a straight through male to female serial cable See the appendix Accessories for ordering information With Ethernet communications the eDrive can connect to a local area network using a standard Ethernet cable and networking equipment like a hub or switch or can connect directly to a host network card using a special network cable The communications protocol supported on the standard eDrive is based on Modbus an industry standard for automated equipment For eDrive User Manual 47 Communications 48 RS 232 or RS 485 interfacing the Modbus RTU format is used For Ethernet interfacing Modbus TCP format is used Since the host is the master in the system
109. otal voltage required for operation is 24 0V 3 2V 27 2V Example 2 You have purchased a CW pump module The datasheet for the module states that it is rated for 18V nominal operation at 30A Set your power supply to 18V 0 08 30 20 4 When operating in pulsed operation monitor the shape of the current waveform to establish your final voltage When testing pulsed system operation always select a low frequency pulse rate initially approximately 10Hz or less This will allow you to evaluate current pulse waveform characteristics before driving significant power into your system See Pulse Waveform Characteristics section on page 31 for more details 3 Setthe current limit on the supply to the lowest level to begin checkout 4 your eDrive eDrive User Manual Operating Basics 5 From the main menu select Channel Setup Channel 1 Set Current Use the selector knob to select a low current level of approximately 10A 6 Press EMISSION After a pre fire state the eDrive begins to drive the array 7 Slowly begin to adjust the power supply current limit until you reach the 10A expected drive level 8 Continue to increase the current amplitude settings on both eDrive and power supply until the desired current level is achieved 9 Press EMISSION to return the eDrive to the standby state WARNING For safety purposes the power supply should incorporate fusing or internal ove
110. ous miscellaneous interfaces in the eDrive other than serial ports Press Q Switch Setup eDrive only Interface Setur Meru Switch Setur Set the logical sense of the various Q Switch interface signals using the signal options to match your Q switch controller Press More for additional options GSwitch Interface Setur Menu Trigger FFS Pulse Ore Active Active Active Lou High Lou Switch Interface Setur Menu Reset Fault Active Active High Herer Hore eDrive User Manual 111 User Interface Utility Functions This is the main menu display Press Utility Functions to select the utility functions menus Main Meru Channel Lamm Interface Utility Setur Setur Setur Functions This is the Utility Functions Menu It is used to set and read the various miscellaneous system level parameters in the eDrive Press System Options Utilita Functions Menu SusLem SusLem rtions Status Select whether the eDrive should produce an audible click when keys are pressed System rtionz Meru Audible Restore Click Adjust Warning Factora Enabled Contrast Enabled Defaults It may be necessary to adjust the LCD contrast if your viewing angle is different than the typical viewing angle Press Adjust Contrast System f rtionzs Meru Audible Restore Click Adjust Warning Factora Enabled Contrast Enabled Defaults
111. r To Q switch Connectors to module RF System Array Fiber Driver Controller 4 Interface Pump with Timing Engine Module Source Front Power Panel Supply eDrive Configuration Configuration Retention The eDrive series uses non volatile memory to save the user settings when the driver is powered off These settings are restored when the driver is powered on minimizing setup time on each use The driver never powers on in the active driving state Configuring Safety Settings The eDrive series has several safety settings that allow you to limit the extent of variability of operating parameters These include a current limit settings and duty cycle limit setting Before you use your eDrive to drive a laser component consider the use of the current and duty cycle limit settings to help prevent accidental overdrive of the laser component Refer to the chapter Operating Basics for details eDrive User Manual 13 Understanding Driver Functions Timing Engine The Timing Engine provides flexible control of all laser system signal timing its like having a pulse generator built into the eDrive The Timing Engine provides the following functions 14 Frequency control of pulsed laser system operation Pulse width control of the q switch enable trigger signal Pulse width control of the current output pulse Control of the timing of the q switch and current pulses relative to the external tr
112. r 2 0 Trigger G AIM 3 No connection 4 Data 1 0 Serial data bus 5 Signal Ground G Signal reference 6 Signal Ground G Signal reference 7 Signal Ground G Signal reference 8 Data 1 0 Serial data bus 9 No connection eDrive User Manual 137 Appendix B Connector Interfaces External Sensors eDrive only This connector provides miscellaneous signals that are used in typical laser systems and that may be employed in custom applications Consult factory for options Connector type 9 position D sub receptacle Pin Name Type Function Provides 5V out at up to 1A for external sensors controls etc 2 Ground G Signal reference 1 Fused 5V P 3 Sensor Bus 4 10 This serial communications bus supports optional sensor and control accessories useful in laser 4 Sensor Bus G Systems This ground open signal is capable ofsinking upto 1A and is used to activate a Laser On safety light 5 Laser On Light 0 This signal mimics the function of the front panel Emission light Active low See chapter Application Examples 6 Debug Transmit Data 0 Reserved for factory use 7 Debug Receive Data Reserved for factory use 8 Ground G Signal reference This ground open signal is capable of sinking up to 1A and is used to activate a shutter control circuit 9 Shutter Control Output 0 This outputis controlled with the front panel SHUTTER switch Active low See chapter Application
113. r Gating refer to the command bits described in the section Communications Trigger Gate Input refers to the connector on the rear panel of the eDrive described in the section Connector Interfaces eDrive User Manual Parameters The eDrive controls the timing of the signals of the laser system Refer to the chapter User Interface Reference for details on setting timing parameters The timing diagram below is representative of internal or external triggering It shows the offset from the trigger signal T1 the pulse width of the current pulse T2 and the offset of the q switch trigger Le T4 Q SWITCH TRIGGER O U i O E SYSTEM TRIGGER Pra T2 CURRENT TRIGGER 15 Understanding Driver Functions 16 T3 These parameters are typically adjusted for pulsed q switched laser systems For CW q switched systems the current pulse timing is irrelevant T4 is the width of the q switch trigger pulse The timing diagram below is representative of internal triggering with external gating It shows the external gating signal preventing internal triggering from occurring The system trigger is in this case the internal timebase The external gate is the signal applied to the Trigger Gate Input When the gate signal is low the internal triggers do not effect the outputs When the gate signal returns high the triggers resume normal operation EXTERNAL SYSTEM TRIGGER Tl JTL Ml CURRENT TRIGGER 1
114. r channel 1 Channel 1 Mode 17 Channel 1 Ramp Control 18 ON Enable current ramping for channel 1 Channel 1 Slew 19 OFF Slew rate control is disabled Rate Control ON Slew rate control is enabled Channel 2 OFF Channel 2 Array Interface Module is disabled Enable ON Channel 2 Array Interface Module is enabled OFF QCW pulsed operation is selected ON CW operation is selected Note This bit can only be changed when the eDrive is not Active and channel 1 is disabled QCW equipped models only Channel 2 Ramp 26 OFF Disable current ramping for channel 2 Channel 2 Mode 25 Control ON Enable current ramping for channel 2 Channel 2 Slew 77 OFF Slew rate control is disabled Rate Control ON Slew rate control is enabled Channel 3 32 OFF Channel 2 Array Interface Module is disabled Enable ON Channel 2 Array Interface Module is enabled OFF QCW pulsed operation is selected ON CW operation is selected Note This bit can only be changed when the eDrive is not Active and channel 1 is disabled QCW equipped models only Channel 3 Ramp 3 OFF Disable current ramping for channel 3 Control ON Enable current ramping for channel 3 Channel 3 Mode 33 eDrive User Manual 63 Communications 64 Channel 3 Slew Rate Control 35 OFF Slew rate control is disabled ON rate control is enabled eDrive User Manual Read Only Bits Communications
115. rcurrent protection circuitry on the DC output voltage to be connected to the input of the eDrive equipment in order to provide protection against faults or short circuits This protection circuitry should be set to disable the output of the power supply if the output current exceeds the eDrive current limit Overcurrent protection circuitry which utilizes a current fold back protection could result in damage to the diode arrays as it prevents the eDrive from properly regulating the diode current Refer to the specifications table for information on the maximum allowable compliance voltage and maximum allowable operating current for the eDrive model being used These limits should be set to agree with the limits provided by the power supply protection circuitry Internal Supply This procedure assumes that there is a load connected to the eDrive output This output may be the actual laser module or a simulated load Some eDrive models are configured with an internal power supply For these models the voltage and current rating of the supply already were configured to be close to the array being driven and therefore the array voltage and AIM dropout voltage have already been accounted for However it may be necessary to adjust the supply for your particular system or to achieve optimal performance To set the internal power supply follow these steps 1 Turnon your eDrive eDrive User Manual 29 Operating Basics 2 From the main m
116. re n is the address of the starting bit address contained in the query eDrive User Manual 55 Communications Function 02 Read Input Bits Reads the ON OFF status of discrete inputs in the eDrive Broadcast is not supported This function accesses read only bits described later in this chapter Query The format of the query is Address Function Bit Start Bit Count CRC Address 1 byte 0x02 2 bytes 2 bytes 2 bytes The query message specifies the starting bit and number of bits to be read The bit start address is the address of the first bit to be read The bit count is the total number of bits to be read The bit address and bit count are transmitted MSB first Response The format of the response is Address Function Byte Count Bit Data CRC 1 byte 0x02 1 byte n bytes 2 bytes The response contains the bit status of the requested bits packed into bytes The byte count indicated how many packed bytes are being returned The packed bits are transmitted as n 7 n n 15 n 8 n 23 n 16 etc where n is the address of the starting bit address contained in the query 56 eDrive User Manual Communications Function 03 Read Holding Registers Reads the contents of holding registers in the eDrive Broadcast is not supported This function accesses read write registers described later in this chapter Query The format of the query is 5 Reg Start Address Function
117. res of the eDrive 40x4 character display four soft keys four dedicated function keys rotary encoder for parameter selection keylock switch and emergency off switch Internal timing generation done by the Timing Engine External trigger input System interlocks user interlock water flow water level High voltage high current array control channel Internal power supply option for eDrive Nitro Internal RF Q switch driver option for eDrive Nitro 5 232 RS 485 and Ethernet connectivity support Remote control capability High power output lugs provide robust electrical and mechanical connection of your laser system to the eDrive eDrive Family At the time of publication of this manual the eDrive family consists of three models They are the eDrive the eDrive Nitro and the eDrive Aero The standard eDrive provides all of the features listed in the previous section and is the baseline product The eDrive Nitro provides the baseline features but also can include an optional internal RF driver for AO Q switching an optional integrated array power supply providing up to 1200W and a laser interface connector for direct connection of your laser system to the eDrive The eDrive Aero provides the baseline features but also includes the RF driver internal power supply fiber pump source and laser interface connector It is designed for integrating with an external fiber pumped gain module 2 eDrive
118. rrors 50 serial link 44 serial message framing 49 serial parameters 49 serial port and loop back mode 44 configuration 49 server DHCP 44 service vii service support xii eDrive User Manual setting the power supply 27 shock hazard viii shot count 118 shutter 46 145 shutter button 77 shutter indicator 77 slew rate limit control 34 slew rate limit control 34 soft buttons 24 76 solenoid 46 specifications 125 accuracy 125 126 128 compliance voltage 125 126 128 display resolution 125 126 128 electrical 125 noise 125 126 128 output current 125 126 128 pulse rate 125 126 128 pulse width 125 126 128 range 125 126 128 transition time 125 126 128 standard menus 80 standby current 37 state table 77 subnet mask 44 supply voltage varying 36 switch current 77 emergency stop 79 Ethernet 44 keylock 78 menu 76 power control 76 selection knob 78 soft 76 switches front panel 76 interlock 46 symbols viii x 119 system options 113 system status 114 eDrive User Manual Index T TCP IP address 52 technical support xii terminal ratings vii terminals ring tongue 148 two hole compression lugs 148 testing the network connection 45 thermal shock 37 timing diagram 15 timing engine 14 tool voltage adjustment 30 transaction identifier 52 transition time 19 125 126 128 trigger input 15 trigger output interface 142 trigg
119. s To realize this capability a set of user menus has been implemented Refer to the section User Interface Reference for a detailed description of the entire menu system The menu system utilizes six buttons and a selection knob on the front panel Four of the buttons are referred to as soft The function of each of these four soft buttons depends on the legend displayed directly over the button The other two buttons MENU and CURRENT have specific functions that are commonly used The MENU button performs the following functions Navigates toward the main menu If you have navigated to sub menus within the menu system pressing MENU will take you upward in the menu structure until you return to the main menu Switches between menu modes Press and hold MENU for three seconds to switch between the full menu system and the restricted menu system called Quick Menus Quick Menus offers the user the most basic system options while preventing access to system configuration and setup features The full eDrive User Manual Operating Basics menus might be considered useful for the experienced laser scientist engineer or technician The Quick Menus are useful for the most basic operations and may also be used to restrict access to advanced features for operators with little expertise The CURRENT button takes the user to a special current control and monitor display and is accessible only in the full menus This button is ignore
120. se charts assume that the power supplies have been properly adjusted To properly adjust your eDrive power supply refer to the section Operating Basics If the cooling air or water is within specification the charts will aid in determining the trade offs between duty cycle and array current for a fixed power supply voltage The eDrive can be configured with two current regulation options One is optimized for speed and the other is optimized for power Larger MOSFET devices can handle more current than smaller MOSFET devices but also require more settling time to stabilize There is a trade off between current capacity and speed The standard eDrive is built optimized for speed If your application requires higher power but does not require the fast transition times of the standard eDrive please specify the higher power configuration when ordering eDrive User Manual 19 Understanding Driver Functions eDrive 100A In this configuration the typical minimum rise time is approximately 35us Its current vs duty cycle operating regions are shown in the figure below This chart was developed with a power supply set to 7V over the array voltage Note that these numbers are maximum recommended operating limits Your eDrive may achieve better performance but damage may occur WARNING These charts provides the maximum operating limits of the eDrive Do not operate the eDrive outside of these limits or damage may occur Current A
121. sed Setur Menu Set Set Set Standbs Current Pulse Current Limit Delas Hore Press Slew Rate Limit Disabled Enabled to toggle the slew rate limit function Refer to the chapter Operating Basics for a description of this function Channel 1 Pulsed Setur Meru Slew Rate Set Limit Fault Disabled OF f set SeLur Press Set PW Offset to set the pulse width offset Channel 1 Pulsed Setur Meru Slew Rate Set Limit Fault Disabled OF f set SeLur A Use the selection knob to set the value Press done to enter the value Set Channel 1 Pulsed Width Offset Present p d us Rotate Dial to Change value 1 ione Press Fault Setup to set the pulse width offset Channel 1 Pulsed Setur Meru Slew Fate Set Limit Fault Disabled Offset tetur eDrive User Manual User Interface Press Fault Setup to set the pulse width offset Channel 1 Fault Setur Set Current Set Tolerance Current ior out liabled Tolerance Use selection knob to set value Press Done to enter value Set Channel 1 Voltage Dropout Limit Present B Rotate Dial to Change value 1 Press Current Tolerance Enable to toggle the current tolerance enable Channel 1 Fault Setur Set Current Set Joltase Tolerance Current Or or out Disabled Tolerance
122. switch Interlock eDrive Nitro Aero only This connector provides an interface to thermally interlock the Q switch crystal with the eDrive Refer to Understanding Driver Functions for information about using this connector The pin and shell must be shorted together for the RF driver to operate Connector type BNC RF Out 1 amp 2 eDrive Nitro Aero only 142 These connectors provide RF modulated outputs to the Q switch crystal s inside the laser Refer to Understanding Driver Functions for information about using this connector Connector type BNC eDrive User Manual Appendix B Connector Interfaces Interlock BNC This connector provides an interface to interlock the laser system or facility with the eDrive Refer to Understanding Driver Functions for information about using this connector The pin and shell must be shorted together for the RF driver to operate Connector type BNC Interlock Plastic housing eDrive Nitro Aero only This connector provides an interface to interlock the laser system or facility with the eDrive Refer to Understanding Driver Functions for information about using this connector The two pins must be shorted together for the RF driver to operate Connector type AMP part 350778 1 Use mating AMP part 350777 and contacts 350689 1 eDrive User Manual 143 Appendix B Connector Interfaces Laser Interface eDrive Nitro Aero only This connector provides an interface to conn
123. t Address Mask jatewaus eDrive User Manual 109 User Interface Use the selection knob to set each value Press lt or gt to switch between parameters Press Done to enter the values Set Gateway Address 1924 166 1 254 Rotate Dial to Change 1 4 gt ione Press Set Function to set the function of the Ethernet interface Ethernet Setur Meru DHCP Set Set Set Disabled Static IF Function Address Use the selection knob to set the value Select from None Modbus Press Done to enter the value Set Ethernet Channel Function Present Malye Modbus Rotate Dial to Select Function ione Press Set Address to set the Modbus address of the Ethernet interface Ethernet Setur Meru DHCP Set Set Set Disabled Static IF Function Address Use the selection knob to set the value Press Done to enter the value Set Ethernet Logical Address Present Walue 1 Rotate Dial to Select Function ione 110 eDrive User Manual User Interface Interface Setup This is the main menu display Press Interface Setup to select the interface setup menus Some eDrive series products will have no additional interfaces to set up and this menu option will not work in those cases Main Meru Channel Lamm Interface Utility Setur Se Lur SeLur Funct iors This is the Interface Setup Menu It is used to configure the vari
124. t Hore Use the selection knob to set the value Press Done to enter the value Set Channel 1 Slew Rate Present Walue 1 amf sec Rotate Dial to Change 1 ione Press Slew Control Enabled to toggle between slew control enabled and disabled Channel 1 Setur Meru Set Slew Set Slew Control Stands Fate Enabled Current eDrive User Manual 83 User Interface Press Set Standby Current to set the standby current Channel 1 Ch Setur Menu Use the selection knob to set the value Press Done to enter the value Set Slew Set Slew Control Stands kate Enabled Current Set Channel 1 Standby Current Present Rotate Dial to Change 1 Dione Press More to access additional options Channel 1 Ch Setur Meru Set Current Limit Press Set Current Limit to set the current limit value Channel 1 Ch Setur Meru Set Current Limit More Use the selection knob to set the value Press Done to enter the value Set Channel 1 Current Limit Present 28 Rotate Dial to Change 1 Dione 84 eDrive User Manual User Interface Channel Pulsed Setup This menu supports configuration of the channel 1 output AIM in pulsed mode operation equipped models only Press Channel Enabled to toggle
125. t byte transmitted is the device address Valid slave device addresses are in the range 0 247 decimal The individual slave devices are assigned addresses in the range of 1 247 When the slave sends its response it places its own address in this address field of the response to let the master know which slave is responding Address 0 is used for the broadcast address which all slave devices recognize This field must match the eDrive address assigned with the front panel See Comm Setup RS 232 Channel 7 Setup Set Address where is either 0 or 1 eDrive User Manual 49 Communications Serial 50 Function Number The second byte transmitted is the function number Valid codes are in the range 1 255 decimal but not all function numbers are used Data The next group of bytes is the data field The length of this field is dependant on the function number Checksum The last two bytes are the checksum of the message The error check value is the result of a Cyclical Redundancy Check calculation performed on the message contents These two bytes contains a 16 bit value transmitted as two 8 61 bytes the least significant byte LSB of the CRC is appended first followed by the most significant byte MSB CRC generation is described in Appendix G CRC Calculations Message End Following the last transmitted character a similar interval of at least 3 5 character times marks the end of the message This interval can ov
126. t count The status word will be OxFFFF if a previously issued command is still being processed by the eDrive a busy condition exists Otherwise the status word will be 0x0000 The count value will indicate how many messages have been processed by the eDrive The counter rolls over to 0 after 65536 messages The data for each 2 byte value is transmitted high byte first and low byte second eDrive User Manual 61 Communications Function 16 Write Multiple Holding Registers 62 Writes the contents of multiple holding registers in the eDrive When broadcast the function writes the same addressed register in all attached eDrives This function accesses read write registers described later in this chapter Query The format of the query is Reg Start Address Function Address Reg Count X Byte Count Reg Data CRC 1 byte 0x10 2 bytes 2 bytes 1 byte 2n bytes 2 bytes The query message specifies the starting register address the register count the byte count which is redundant and the values to be written to each register addressed fields are transmitted MSB first Response The format of the response is Reg Start Address Function Address Reg Count CRC 1 byte 0x10 2 bytes 2 bytes 2 bytes The normal response returns the slave address function code starting address and quantity of registers preset eDrive User Manual Communications Read Write Bits The following tabl
127. t due to slow communications Channel 1 41 OFF Channel 1 does not have an interlock fault Interlock Fault ON Channel 1 has an interlock fault Channel 1 Temp 42 OFF 1 does not have a temperature fault Fault ON Channel 1 has a temperature fault Channel 2 Off 48 OFF Channel 2 is not in the Off State State ON Channel 2 is in the Off State Channel 2 49 OFF Channel 2 is not in the Standby State Standby ON Channel 2 is in the Standby State Channel 2 50 OFF Channel 2 is not in the Active State Active ON Channel 2 is in the Active State Channel 2 Fault 51 OFF Channel 2 is not in the Fault State State ON Channel 2 is in the Fault State Channel 2 State 5 OFF Channel 2 state does not have a fault Mismatch Faul ON Channel 2 state has a fault Channel 2 53 OFF Channel 2 processor communication is good Comm Fault ON Channel 2 processor stopped communicating with the system Channel 2 54 OFF Channel 2 does not have hardware fault Hardware Faul ON Channel 2 has a hardware fault Channel 2 55 OFF Channel 2 is not on the emergency stop state E Stop Fault ON Channel 2 is on the emergency stop state 56 OFF Channel 2 processor communication is good Fault ON Channel 2 has a fault due to slow communications Channel 2 57 OFF Channel 2 does not have interlock fault Interlock F ault ON Channel 2 has an interlock fault 66 eDrive User Manual Communications
128. ted to the eDrive output This output may be the actual laser module or a simulated load Some eDrive series products are configured to operate with an external power supply To set your external power supply follow these steps 1 Turnon the power supply 2 Setthe power supply voltage The required power supply voltage can be approximated by summing the expected s L V eDrive User Manual 27 Operating Basics 28 array voltage and the AIM dropout voltage which is calculated as the product of the expected array current I and the characteristic impedance of the AIM Zam which is typically 0 080 See equation Use the published module or array voltage from the datasheet of your laser product or if you are using packaged diode bars calculate the expected array voltage by multiplying the number of diode bars by the forward voltage drop For Cutting Edge Optronics bars use a forward voltage drop of approximately 1 85V to 2 00V per bar WARNING When switching between operating modes be sure to adjust the power supply according to the instructions in this section to avoid overheating the eDrive Example 1 You are driving a 12 bar array mode expected voltage drop across the array is approximately 12 2 00V or 24 00V The AIM has a characteristic impedance of approximately 0 08 ohms At 40A the voltage drop across the AIM will be approximately 3 2V The approximate t
129. the channel enable Channel 1 Setur Meru Enable Channel Pulsed Set Enabled Current Press Enable Pulsed Mode to toggle from CW to QCW pulsed mode operation This operation is only allowed when the channel is disabled Channel 1 Setur Meru Enable Channel Pulsed Set Disabled Made Current To proceed you must acknowledge the prompt Press YES See the Channel 1 CW Setup Menu section for details Re enable the channel CONFIRM CHANNEL 1 MODE you want to continue changing this channel to PULSED MODE oferation YES Press Set Current to set the channel current Channel 1 Pulsed Setur Meru Enable Channel Chl Set Enabled Made Current More eDrive User Manual 85 User Interface Use the selection knob to set the value Press Done to enter the value Set Channel 1 Current Present Rotate Dial to Change 1 Press More to access additional options Channel 1 Pulsed Setur Meru Enable Channel Set Enabled Hode Current Press Set Frequency to set the pulse rate frequency PRF of the current pulse Channel 1 Pulsed Setur Meru Set Set Set Pulse Duta Freauenca Width Limit More Use the selection knob to set the value Press Done to enter the value
130. tive pulse will be returned Flow 9 Range 0 to 1 000 LSB value 0 1A Channel 3 Power This value represents the power supply voltage reading for channel 3 Supply Voltage Range 0 to 3500 LSB value 0 1V Channel 3 85 This value represents the temperature reading for channel 3 Temperature Range Oto 1000 LSB value 0 1C Channel 3 86 This value represents the current limit setting for channel 3 Current Limit Range 0 to 1 000 LSB value 0 1A Channel 3 Duty 87 This value represents the duty cycle limit for channel 3 Cycle Range 0 to 1000 LSB value 0 1 percent Channel 3 ae ines 8 This value represents the number of hours accumulated on the warranty Channel 3 timer of the channel 3 AIM Warranty Timer 9 Range 0 to 4 294 967 295 LSB value 1 second Low E 3 cw 90 This value represents the CW on time for channel 3 that current levels above n Time High 6A has flowed through the AIM Channel 3 CW as flowed through the AIM 91 Range 0 to 4 294 967 295 LSB value 1 second On Time Low Channel 3 CW 2 This value represents the CW power cycle count for channel 3 that indicates ountHigh h Channel 3 CW ow many times current flow has been turned on and off in CW mode Range 0 to 4 294 967 295 Power Cycle 93 Count Low Channel 3 Pulsed Mode 94 Shot Counter High This value represents the channel 3 shot counter Channel 3 Range 0 to 4 294 967 295 Pulsed Mode 95 Shot Counter Low eDrive User Manual 73
131. tor and the bottom trace is the output from the Q switch RF driver Notice how the optical output power increases Trigger Phoio detecior with each successive pulse as the FPS function opens the Q switch crystal FPS is used to eliminate the first powerful pulse that results from an over energized laser gain medium or cavity when lasing has been held off 38 eDrive User Manual Operating Basics FPS Parameters The eDrive Nitro and Aero Q switch function is very flexible and supports control of the following parameters 1 Q switch trigger frequency This parameter is the frequency at which the q switch trigger occurs 2 Q switch window width This parameter is the width of the gap in the RF modulation envelope 3 FPS delay This parameter is the amount of time without pulse activity that is required in order to trigger a first pulse suppression event 4 Q switch RF power This parameter sets the amount of RF power that is delivered to the q switch during a nominal pulse This level allows for advanced power control without adjusting the current output amplitude 5 FPS start power This parameter sets the amount of RF power that is delivered to the q switch at the start of a first pulse suppression event 6 FPS window length This parameter sets the duration of the RF modulation waveform that occurs during a first pulse suppression event 7 FPS modulation type This parameter sets the shape of the RF env
132. ual Application Examples When the eDrive is setup on the network as a DHCP configured node and if your DHCP server supports network node naming using DHCP Options 12 and 15 then the eDrive will request and use a network name This network name is formed by joining the string edrive with the three digit eDrive address set in the Ethernet Setup Menu For example if you set the Ethernet address with the Set Address option not to be confused with the Set IP Address option to a value of 5 then the network name would be 005 To test the network connection to the eDrive select Utility Functions gt System Status gt Sys Ctrl Press More until the assigned DHCP address is revealed Record this address for reference At the computer command shell type ping a ip addr where ip addr is the DHCP assigned address recorded above If the ping command indicates replies have been received then the connection is validated If your DHCP server provides the network name function support and if you have set the channel address then you also may be able to type ping edrive lt addr gt where addr is the address set as described above The listing below shows an example session As you can see in the listing the DHCP server has assigned a network name of edrive005 domain com to the eDrive l1 o w 20 192 168 1 34 Pinging edrive005 domain com 192 168 1 34 with 32 bytes o
133. uted eDrive User Manual 59 Communications Function 06 Write Single Holding Register 60 Writes the contents of a single holding register in the eDrive When broadcast the function writes the same addressed register in all attached eDrives This function accesses read write registers described later in this chapter Query The format of the query is Address Function Reg Data CRC Reg Address 1 byte 0x06 2 bytes 2 bytes 2 bytes The query message specifies the register address and the value to be written to that register address The register address and value are transmitted MSB first Response The response is a duplicate of the query message which will be transmitted after the command has been successfully executed eDrive User Manual Communications Function 11 Read Communications Status Reads the status of the communications channel in the eDrive The master can determine whether the messages were handled normally by the eDrive by reading the count before and after a series of messages The eDrive s event counter is incremented once for each successful message completion Broadcast is not supported Query The format of the query is Address Function CRC 1 byte 0 0 2 bytes Response The format of the response is Address Function Status Count CRC 1 byte 0x0B 2 byte 2 bytes 2 bytes The normal response contains a two byte status word and a two byte even
134. ve OR the CRC register with the polynomial hex value 0xA001 0b1010 0000 0000 0001 Repeat step 3 until eight shifts have been performed When this is done a complete 8 bit byte will have been processed Repeat steps 2 through 4 for the next 8 bit byte of the message until all bytes have been processed The final contents of the CRC register is the CRC value eDrive User Manual Appendix E Calculations Flowchart Start crc gt crc crc byte Y Y crc gt gt 1 cre crc gt gt 1 crc crc 0 001 1 bytes processed End eDrive User Manual 159 Appendix E Calculations Code Example The following code example demonstrates the implementation of the algorithm The code is written in Python The variable string is an example string for testing the calculation The proper result for this string is 3 8 string x01 x05 x00 x00 xff x00 initilize the cre and the poly crc OxFFFF 16 0 001 for char in string the next byte with the lower 8 bits of the crc crc ord char for bit in range 8 if crc amp 0x0001 If the LSB is 1 shift one to the right and 0 001 with the crc orc gt gt 1 erc pls 15 If the LSB is
135. ver Functions describes basic operations and functions of the driver driver configuration the Timing Engine triggering and gating the power train and operating limits Operating Basics covers basic operating principles of the driver Application Examples provides an overview of how to interface the driver with a computer host and how to interface a laser to the driver Communications provides a detailed description of how to interface the driver to a computer host using the RS 232 RS 485 and Ethernet ports User Interface Reference describes the menu system and available selection parameters Appendix A Specifications includes electrical and physical specifications for the driver and a key to the ordering code Appendix B Connector Interfaces briefly describes connector functions pin outs and signaling Appendix C Accessories briefly describes standard and optional accessories Appendix D General Care and Cleaning describes general care of the driver Appendix E CRC Calculations contains a description of how CRC codes are calculated eDrive User Manual ix Preface Conventions This manual uses the following conventions Front panel buttons knobs and connectors appear in all uppercase letters For example MENU CURRENT Menu options appear with the first letter of each word in upper case For example Phase Delay Pulse Width The symbol separates a sequence of button pushes For example M
136. witch Setur Menu Set i 5uitch Set Wirio Enabled Freauencua Width Hore Use the selection knob to set the value Press Done to enter the value Set Window Width Present 5 ous Rotate Dial to Change 1 Press More access more options G 5uitch Setur Menu Set Switch Set Window Enabled Fr eauenca Width More Press FPS Disabled to toggle the state of the first pulse suppression function Set it to meet your laser system requirements GSwitch Setur Menu Set FFS FFS Disabled Delas Hore Press Set FPS Delay to set the time limit required to activate a first pulse suppression GSwitch Setur Menu Set FFS FFS Disabled Delas Hore eDrive User Manual 93 User Interface Use the selection knob to set the value Press Done to enter the value Set FPS Delas Time Present 2 8 Rotate Dial to Change 1 94 eDrive User Manual User Interface CW Q Switch Setup Menu eDrive Nitro and Aero This menu supports configuration of the Q switch operation NOTE The Q switch menu will display either CW or Pulsed mode depending on the mode selected for Channel 1 This is the channel setup menu Press Q Switch to select Q Switch setup menus Channel Setur Meru Internal Trigger Channel 1 G switch Enabled Pr
137. zero just shift one to the right cre Gro 1 print X kle 160 eDrive User Manual Index A AC input power 150 access ports 30 accessories 151 AC power kit 151 bypass connector kit 151 cable kits 152 capacitor 152 CD ROM 151 emergency stop switch 152 keys 151 optional 151 plumbing kits 152 rack mounting 152 standard 151 terminal shroud 151 user manual 151 accidental overdrive 27 accuracy 125 126 128 Active X 44 adjustment tool 30 adjustments 24 AIM 17 28 application examples 43 array interface module 17 array output 149 array power connections 9 audible beep 114 audible click 113 average current 17 basic connections 8 block diagram eDrive 12 eDrive Aero 13 eDrive Nitro 12 eDrive User Manual building ground 8 button current 77 emission 77 menu 24 76 power control 76 shutter 77 soft 76 bypass connector 8 cable cross over 44 Ethernet 44 fiber optic 26 RS 232 44 CAN bus serial port 140 capacitor internal 33 kit 152 care and cleaning 155 caution viii characteristic impedance 28 chassis ground viii chassis ground stud 8 checksum 50 chiller 8 control interface 139 faults menu 124 operation 25 command shell 45 communications 47 and host computer 47 master 47 multi drop 47 overview 47 point to point 47 setup 106 slave 47 161 Index compliance voltage 125 126 128 computer and network card 4

User Manual eDrive/eDrive Nitro/eDrive Aero Laser Diode Driver

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