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Notes

Содержание PCX-7500

Страница 1: ...PCX 7500 Pulsed Current Source Operation Manual Directed Energy Inc 1609 Oakridge Dr Suite 100 Fort Collins CO 80525 970 493 1901 sales ixyscolorado com www ixyscolorado com ...

Страница 2: ...uide 19 Safety 19 Requirements 19 Controlling the PCX 7500 from the Front Panel 19 Controlling the PCX 7500 from a Computer 20 Operation 21 Setup 21 Power Up 21 Home Help Screen 22 Setting the Output Current 22 Setting the Trigger Source 22 Setting the Frequency 23 Setting the Pulse Width 23 Settings Menu 24 Viewing Information about the PCX 7500 24 Viewing the Communication Settings 24 Saving the...

Страница 3: ... Recalling the Settings 27 Power Down 27 Command Set 28 Warranty and Service 33 Warranty 33 Factory Service and Support 34 ...

Страница 4: ...ing air enters the rear of the chassis and exits the front of the chassis Do not use where liquids are present or in corrosive environments Clean this instrument by wiping with a dry or damp cloth WARNING Risk of lethal electric shock Do not open the cabinet of this device Do not touch the output or laser diode while it is operating This device produces LETHAL levels of electric current both insid...

Страница 5: ...o instrument For example rise and fall times may be slower and droop may be greater than specified Here is an example of how to use the SOA graph to calculate maximum pulse width Assume the laser is rated at 5 V 200 W the pulser is a PCX 7500 5 and the desired pulse is 400 A at 500 Hz According to the PCX 7500 5 SOA graph at 5 V the maximum output power is 100 W In this case the instrument 100 W n...

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Страница 12: ...olatile memory providing instant recall of frequently used configurations The laser diode is connected to the PCX 7500 through a low impedance stripline cable designed to preserve the fidelity of high speed current pulses The output connector is interlocked such that the PCX 7500 is disabled when the connector is removed Conveniently located front panel BNC connectors allow the PCX 7500 to be exte...

Страница 13: ...s whether the PCX 7500 output current is enabled or disabled The ENABLE button is lit when the unit is enabled The unit can only be enabled when the key switch is in the ON position Current Monitor IMon This BNC connector provides a connection to an oscilloscope The signal is a voltage representation of the output current at the output current connector and ranges from 0 V to 1 5 V At 100 A output...

Страница 14: ...on for the system generated current pulses DO NOT TOUCH any part of this cable while the PCX 7500 is powered up Please review the Safety section Note The absence of a properly installed output cable disables the output and creates an output enable fault Rear Enable This connector accepts either an external dry contact closure or the factory supplied shorting BNC plug Closed contacts or the use of ...

Страница 15: ...or USB Connector Use this connector to communicate with an external computer with a USB cable Ethernet Connector Use this connector to communicate with an external computer through an Ethernet network RS232 Connector Use this connector to communicate with an external computer via a RS 232 cable Power Cord Connector The power cord connector accepts type IEC 320 C 19 to NEMA 5 20P grounding equipmen...

Страница 16: ...s the socket on the rear panel of the PCX 7500 a DB 37 female connector is on the user end Shorting BNC Plug The shorting BNC plug attaches to the Rear Enable BNC connector on the rear panel It takes the place of closed contacts and enables the output Keyswitch Keys The keys access the front panel on off keyswitch The output is enabled when the keyswitch is in the ON position AC Power Cord Output ...

Страница 17: ...DEI recommends soldering your laser directly to the interface PCB without any additional cables or wire If wires are absolutely necessary they should be as short as possible and twisted if longer than 3 cm Wires and cabling from an interface board to the laser will increase inductance which increases overshoot DEI can design a custom interface board for you at a nominal cost please contact custome...

Страница 18: ...put pulse The overshoot voltage is defined by the following fundamental equation V L di dt Assume we wish to generate a 450 A pulse with a 1 µs rise time and a voltage overshoot of less than 10 volts What is the maximum allowable inductance in the output path L V di dt 10 V 450 A 0 000001 s 22 nH It is easily seen that with high currents and fast rise times voltages can increase rapidly if inducta...

Страница 19: ...led Press the button to disable The green light goes out 2 Set the output current Press the Output button on the touch screen Press the encoder knob to set the resolution to x0 1 x1 0 or x10 0 Turn the encoder knob to set the output current from 10 0 A to 450 0 A Press the Done button 3 Set the trigger to internal or external Press the Trigger button on the touch screen Press the Internal or Exter...

Страница 20: ...ernal or external Send the command TRIG INTERNAL or TRIG EXTERNAL 3 Set the internal pulse trigger frequency Send the command TRIG INT FREQ n where n 8 to 10000 Units are hertz 4 Set the pulse width Send the command TRIG INT PULSEWIDTH nnnn where n 4000 to 5000000 Pulse width is dependent on the frequency Units are nanoseconds 5 Set the output current Send the command SETPOINT CURRENT n where n 10...

Страница 21: ...er connections as necessary External Trigger Sync Rear Enable or the connection to the computer 4 Connect the power cable Power Up 1 Turn on the power switch The instrument powers up in about 3 seconds 2 The instrument plays a tune and displays DEI information 3 After a few seconds the PCX 7500 displays the Home screen Internal Temperature Keyswitch Rear Enable Output Connector Output Current Puls...

Страница 22: ...ppears 2 Press the encoder knob to select a resolution x0 1 x1 0 or x10 0 3 Turn the encoder knob to change the output current 0 0 A to 450 0 A 4 Press the Done button Set the Trigger Source TRIG INTERNAL TRIG EXTERNAL Note The PCX 7500 will default to Internal Trigger mode during initial power up 1 From the Home screen press the Trigger icon The Select Trigger screen appears 2 Press the icon for ...

Страница 23: ...from 8 Hz to 10000 Hz 4 Press the Done icon The Home screen reappears Set the Pulse Width TRIG INT PULSEWIDTH TRIG INT PULSEWIDTH n 1 On the Home screen press the Pulse Width icon The Set Pulse Width screen appears 2 Press the encoder knob to select a resolution 3 Turn the encoder knob to change the pulse width from 4 µs to 5 ms dependent on frequency Frequency Minimum Resolution 8 Hz to 299 Hz 1 ...

Страница 24: ...reen press the Tools icon The Settings screen appears 2 Press the About icon The About screen appears 3 View the model number serial number calibration date and firmware revision level 4 Press the Home icon to return to the Settings screen 5 Press the Home icon to return to the Home screen View the Communication Settings 1 On the Home screen press the Tools icon The Settings screen appears 2 Press...

Страница 25: ...If USB is selected change the baud rate to appropriate setting The screen reports the number of data bits stop bit and the parity c If Ethernet is selected choose DHCP or STATIC for IP address For DHCP press DHCP then press the Update Hardware icon To reset the DHCP address press the Settings icon Press the Default DHCP Settings then press the Save and Exit icon Press the Update Hardware icon For ...

Страница 26: ...reen appears Press each field setting and use the encoder knob to change settings Press the Save and Exit icon Press the Netmask box to set the Netmask the Netmask Configuration screen appears Press each field setting and use the encoder knob to change settings Press the Save and Exit icon Once all static settings are completed press the Save and Exit icon Then press the Update Hardware icon 6 Pre...

Страница 27: ...ome icon to return to the Home screen Recall Settings RECALL n 1 On the Home screen press the Tools icon The Settings screen appears 2 Press the Recall Settings icon The Recall screen appears 3 Press the icon for one of the four locations from which you want to recall the settings 4 The recall takes 10 seconds Press the Home icon to return to the Home screen Power Down OUTPUT DISABLE 1 Disable the...

Страница 28: ...to avoid an overflow of the PCX 7500 receive buffer NOTE Any change to a command adjustment typically requires less than 200 ms to complete In the examples the command or query is in black the response is in blue italics LIST Lists all commands and queries supported by the PCX 7500 Example LIST IDN SAVE n n 1 4 RECALL n n 1 4 LIST OUTPUT OUTPUT ENABLE OUTPUT DISABLE TRIG TRIG INTERNAL TRIG EXTERNA...

Страница 29: ... Disabled OUTPUT ENABLE Enables the output Performs the same function as pressing the front panel ENABLE icon Example OUTPUT ENABLE OUTPUT ENABLE OUTPUT DISABLE Disables the output Performs the same function as pressing the front panel ENABLE icon Example OUTPUT DISABLE OUTPUT DISABLE TRIG Returns the trigger type Internal or External Example TRIG INTERNAL TRIGGER TRIG INTERNAL or TRIG EXTERNAL Se...

Страница 30: ... between 8 Hz and 10000 Hz Example TRIG INT FREQ 2400 2400 Hz TRIG EXT TERM Returns the external trigger termination value Example TRIG EXT TERM 50 Ohm TRIG EXT TERM n Sets the external trigger termination of 50 ohms or 10k ohms use n value of 50 or 10 Example TRIG EXT TERM 10 TRIG EXT TERM 10000 SETPOINT CURRENT Returns the Output Current in amperes Example SETPOINT CURRENT 100 2 Amps Frequency R...

Страница 31: ...o off while pulses were enabled 2 interlock error output cable was removed while pulses were enabled 4 temperature error instrument s temperature exceeded expected range 8 open load load is open or the required voltage exceeds instrument range 16 24V error internal 24V is outside of normal range 32 Cap voltage error NOT USED 64 over current error Either the PCX 7500 or the load failed Contact DEI ...

Страница 32: ...STATUS KEYSWITCH ENABLED STATUS REAR ENABLE Returns the state of the rear enable connector Enabled or Disabled Example STATUS REAR ENABLE ENABLED ...

Страница 33: ... design or construction of its products at any time without incurring any obligation to make any change whatever in units previously delivered DEI s sole obligation and buyer s sole remedies under this agreement shall be limited to a refund of the purchase price or at DEI s sole discretion to the repair or replacement of products in kind that prove to DEI s satisfaction to be defective when return...

Страница 34: ...on about your instrument or for an operation problem please contact the factory Directed Energy Inc 1609 Oakridge Dr Suite 100 Fort Collins Colorado 80525 970 493 1901 ext 24 sales ixyscolorado com techsupport ixyscolorado com http ixyscolorado com ...

Страница 35: ...p Current n PCX 7500 ve 73 23 EEC o nt designed for u C on the approxi tandards reby declare that e above Directive usse Manager FORMITY ARATION Inc rive Suite 100 t Source on the harmoniza use within certain imation of the law Referenced E EN61326 EN 5501 EN 6100 EN 6100 EN 6100 EN 6100 EN 6100 EN 6100 EN 6100 EN 6100 EN 6100 t the equipment s e s and Standar OF CONF Fort Collins CO ation of the ...

Страница 36: ...Notes ...

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