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QL Series II

P

recision Power Supplies                               

INSTRUCTION MANUAL

Содержание QL Series II

Страница 1: ...QL Series II Precision Power Supplies INSTRUCTION MANUAL ...

Страница 2: ...models only 23 Remote Operation P models only 24 Interface Locking 24 Address Baud Rate Selection and Interface Status View 24 Remote Local Operation 25 RS232 Interface 25 USB Interface 26 LAN Interface 26 Status Reporting 30 Remote Commands 34 RS232 USB Remote Command Format 34 GPIB Remote Command Formats 34 Command List 35 Maintenance 40 Note The latest revisions of this manual device drivers an...

Страница 3: ...s been carefully designed to provide rapid control whilst guarding against any possibility of error Voltage and current setting can be performed either by direct numeric entry or for applications where the voltage or current must be gradually changed by using the quasi analogue Jog control To enable the current limit to be set before connecting the load the limit setting is displayed when the outp...

Страница 4: ...XI Core 2011 compliant The QL series II uses simple and consistent command structures which make programming particularly easy regardless of which interface is used An IVI driver for Windows is included This provides support for common high level applications such as LabView LabWindows and HP Agilent VEE All power supply settings can be controlled via the bus Voltage and current can be set to a re...

Страница 5: ...e screw terminals on P models Transient Response 50µs to within 15mV of set level for a change in load current from full load to half load or vice versa Voltage Programming Speed Maximum time required for output to settle within 1 of its total excursion for resistive load Excludes command processing time QL355 QL564 Full Load No Load Full Load No Load Up Up Up 15V 5A 35V 3A 35V 500mA 6ms 20ms 200m...

Страница 6: ... 5 10mV Current Limit 3A minimum Output Switch Electronic non isolating Switch illuminated when Output on Output Terminals Universal 4mm safety binding posts on 19mm 0 75 pitch Duplicate screwless terminals on rear panel Output Protection Output will withstand up to 16V forward voltage Diode clamp reverse protection for currents up to 1A Over current trip Ripple Noise 20MHz bandwidth 2mV rms 10mVp...

Страница 7: ...on 0 01mA Accuracy 0 2 0 5mA on 500mA range Readback V I See meter specifications Auxiliary Output T models only Voltage Setting Resolution 10mV accuracy 0 5 10mV Current Setting Resolution 10mA accuracy 0 5 10mA Readback V I See meter specifications GENERAL AC Input 230V AC or 115V AC 10 50 60Hz Installation Category II Power Consumption Single output 250VA max Triple output 500VA max Operating R...

Страница 8: ...prohibited The protective action must not be negated by the use of an extension cord without a protective conductor When the instrument is connected to its supply terminals may be live and opening the covers or removal of parts except those to which access can be gained by hand is likely to expose live parts The apparatus shall be disconnected from all voltage sources before it is opened for any a...

Страница 9: ...se remove the line cord and open the fuse drawer with a suitable tool QL355 QL355P QL564 QL564P The correct mains fuse type is 20 x 5mm 250V HBC time lag with the following rating for 230V operation 1 6A T 250V HBC for 115V operation 3 15A T 250V HBC QL355T QL355TP QL564T QL564TP The correct mains fuse type is 20 x 5mm 250V HBC time lag with the following rating for 230V operation 4A T 250V HBC fo...

Страница 10: ...the air inlets at the side panels or the exit at the rear In rack mounted situations allow adequate space around the instrument and or use a fan tray for forced cooling Connections Front Panel Connections The loads should be connected to the positive red and negative black terminals marked OUTPUT 1 OUTPUT 2 or AUX Remote sense connections to the loads on Outputs 1 or 2 if required are made from th...

Страница 11: ...nt ground It conforms with USB 2 0 Full Speed and accepts a standard USB cable The Windows plug and play functions should automatically recognise that the instrument has been connected If the correct driver is not found follow the Windows on screen prompts and install the required files from the CD supplied LAN P models only The LAN interface is designed to meet 1 4 LXI Lan eXtensions for Instrume...

Страница 12: ...tail in later sections The paramount consideration in designing the user interface has been to make changing settings as safe as possible i e with minimal risk of accidentally applying excessive voltages to a target system whilst achieving ease of use This has been achieved by requiring the user to confirm OK new numeric settings with the option to ESCAPE at any point or even to simply pause until...

Страница 13: ...clockwise increments decrements the selected digit digits to the left of the one being jogged are automatically incremented decremented when the decade overflow underflow point is reached Digits to the right of the one being jogged remain unchanged unless the jog step overflows underflows the range maximum minimum in which case they are set to zero On the QL355 for example 33 65V goes to 34 65V go...

Страница 14: ...ted immediately above them and in the case of the 500mA range the indicator is marked mA to emphasise that the current display is now showing mA The other annunciators above the displays are CI indicating that the instrument is in constant current mode LIM which flashes when the VIEW V I LIMITS key is pressed to show the set voltage set current limit in the display REM which lights when the instru...

Страница 15: ...5 000V 15 000V on the 15V 5A range or 56 000V 25 000V on the 25V 4A range for QL564 Pressing OK at any point will set the voltage entered with any remaining digits set to zero e g 1 2 3 OK will set 12 300V 1 OK will set 1 000V pressing OK immediately after SET V while the display shows 0 000V will set 0 000V Pressing ESCAPE at any time during the sequence or making no further key press within 10 s...

Страница 16: ...the range maximum including trying to enter 2 digits before the decimal point or trying to enter more than 4 digits will cause the buzzer to beep twice the last key entry will be ignored The current limit can also be set using the rotary jog control Pressing JOG SET I will illuminate the key and the JOG indicator under the digit that was last jogged will flash Whilst the I key is lit each further ...

Страница 17: ...tal changes to the output settings in a bench or rack set up front panel control of Range Voltage Current Limit OVP and OCP can be locked and unlocked with alternate uses of the 33 function see Extra Functions section The output ON OFF key remains unlocked as does selection of remote sense Front panel lock still operates in remote control mode P models only but is ignored by the remote commands On...

Страница 18: ...arallel with others to produce higher currents Where several units are connected in parallel the output voltage will be equal to that of the unit with the highest output voltage setting until the current drawn exceeds its current limit setting upon which the output will fall to that of the next highest setting and so on In constant current mode units can be connected in parallel to provide a curre...

Страница 19: ...orward over voltage and over current protection the output is protected from reverse voltages by a diode the continuous reverse current must not exceed 3 Amps although transients can be much higher Output Power V x A If SHIFT V x A is pressed the voltage display shows the product of measured output voltage x measured current and the current display shows UA the output power reading is continuously...

Страница 20: ... SHIFT function is cancelled the light goes off at this point If the store selected is full F the display changes to a flashing preview of the V I values of that store press OK to recall the settings of the store and return the display to showing V I If the store selected is empty E the display flashes to indicate this It is not possible to recall an empty store pressing OK gives a warning beep ei...

Страница 21: ... that the AUX output settings are locked with Output1 40 Jog digit flashes JOG indicator only flashes when jog is hidden 41 JOG indicator always flashes except when hidden factory default 42 JOG indicator doesn t flash except when hidden lazy flash 91 Loads default calibration parameters Refer to Service Guide 92 Shows firmware version number in the display 93 Sets these settings to their factory ...

Страница 22: ...ink mode provides a convenient means for controlling the two outputs when they are series or parallel connected 2 Tracking Voltages or Currents When in Link mode using Numeric Set will set equal voltages and or currents on the two outputs Control of the outputs can also be linked with different voltages and or currents set on the outputs Use of the Jog control will then make equal changes to the t...

Страница 23: ...Voltage Current Limit OVP and OCP Operation in Link mode is exactly as described in the Store Recall and Delete paragraphs of the Main Outputs section the display messages described in these sections appear in both displays when Link mode is selected OVP OCP and Sense OVP OCP and Sense can only be set when either channel is independently selected The settings are maintained when Link mode is selec...

Страница 24: ...d set using the Jog control the current limit is fixed and the preview shows 3 00A With the AUX output turned on the Output 1 display shows actual AUX output voltage and current The AUX output is protected against current overload and momentary short circuit as follows When the load current exceeds 3 00A the ILIMIT lamp lights to show that regulation is no longer maintained If this overload condit...

Страница 25: ...om any interface by sending an IFLOCK command The reply to any of these commands will be 1 if the lock is owned by another interface instance 0 if the interface is free and 1 if the lock is owned by the requesting interface instance Sending any command from an interface without control privileges that attempts to change the instrument status will set bit 4 of the Standard Event Status Register and...

Страница 26: ...l be turned on In this state the keyboard is locked out and remote commands only will be processed The instrument may be returned to the local state by pressing the LOCAL key however the effect of this action will only remain until the instrument is addressed again or receives another character from the interface when the remote state will once again be entered RS232 Interface RS232 Interface Conn...

Страница 27: ...ware and then browse this computer for driver software and then locate the INF file on the CD as described above Once Windows has installed the device driver it will assign a COM port number to this particular unit This number will depend on previous COM port assignments on this PC and it may be necessary to use Device Manager to discover it Each instrument has a unique USB identifier which is rem...

Страница 28: ...ation is no password The Configure page itself explains how to set the password The password can be up to 15 characters long note that the User Name should be left blank The password will however be reset to the default no password if the rear panel LAN RESET switch is used to reset all the LAN parameters to their factory default The web pages also have an Identify function which allows the user t...

Страница 29: ...me contains complete commands though commands may be sent with a terminator if desired it will be ignored Each command over TCP behaves as if it is terminated with a command terminator ASCII character 0AH line feed LAN Error If a LAN connection is made but an error is detected e g the IP address is the same as another device on the network then the instrument s LAN lamp above the Output 2 meters w...

Страница 30: ...nd the response formatter to be reset thus clearing the output queue The parser will then start parsing the next PROGRAM MESSAGE UNIT from the input queue See the Status Reporting section for further information GPIB Parallel Poll Complete parallel poll capabilities are offered on this instrument The Parallel Poll Enable Register is set to specify which bits in the Status Byte Register are to be u...

Страница 31: ...oo big or too small Includes negative numbers where only positive numbers are accepted 123 A recall store of set up data has been requested from to an illegal store number 124 A range change has been requested but the current psu settings make it illegal see Manual Operation instructions for details 200 Read Only An attempt has been made to change the settings of the instrument from an interface w...

Страница 32: ... required by the IEEE Std 488 2 Any bits set in the Status Byte Register which correspond to bits set in the Service Request Enable Register will cause the RQS MSS bit to be set in the Status Byte Register thus generating a Service Request on the bus The Status Byte Register is read either by the STB command which will return MSS in bit 6 or by a Serial Poll which will return RQS in bit 6 The Serv...

Страница 33: ...32 Status Model For single output models ignore LSR2 LSE2 LIM2 ...

Страница 34: ...will be in local state with the keyboard active The instrument parameters at power on are the same as at last switch off with the exception of the output status By default this is always off at power on but the user may change this to the same at power on as at switch off The RST reset command resets the instrument to the Remote Operation Default settings Remote Operation Default settings are Vout...

Страница 35: ...except in command identifiers e g C LS is not equivalent to CLS The high bit of all characters is ignored The commands are case insensitive GPIB Remote Command Formats GPIB input to the instrument is buffered in a 256 byte input queue which is filled under interrupt in a manner transparent to all other instrument operations The queue contains raw un parsed data which is taken by the parser as requ...

Страница 36: ...or clarity the commands where N 3 can be used are explicitly commented elsewhere only N 1 or N 2 can be used CPD CHARACTER PROGRAM DATA CRD CHARACTER RESPONSE DATA The commands which begin with a are those specified by IEEE Std 488 2 as Common commands All will function when used on the other interfaces but some are of little use Instrument Specific Commands For commands specified as WITH VERIFY t...

Страница 37: ...response is R N NR1 RMT where NR1 has the following meaning QL355 Models 0 15V 5A 1 35V 3A 2 35V 500mA QL564 Models 0 25V 4A 1 56V 2A 2 56V 500mA DELTAV N NRF Set the output N voltage step size to NRF Volts For AUX output N 3 DELTAI N NRF Set the output N current step size to NRF Amps DELTAV N Return the output N voltage step size For AUX output N 3 response is DELTAV N NR2 RMT where NR2 is in Vol...

Страница 38: ... Query and clear LSR N limit status register N response is NR1 RMT LSE N NRF Set the value of LSE N limit status enable register N to NRF LSE N Return the value of LSE N limit status enable register N response is NR1 RMT SAV N NRF Save the current set up of output N to the set up store specified by NRF where NRF can be 0 49 for the main outputs or 0 9 for the AUX output on TP models For AUX output...

Страница 39: ...next is started this command takes no additional action Interface Management Commands IFLOCK Request Instrument lock This command requests exclusive access control of the instrument The response is 1 is successful or 1 if the lock is un available either because it is already in use or the user has disabled this interface from taking control using the web interface IFLOCK Query the status of the in...

Страница 40: ...ss with each address part an NR1 in the range 0 to 255 e g 192 168 1 101 NETMASK quad Sets the netmask to accompany the static IP address of the LAN interface The parameter must be strictly a dotted quad for the netmask with each part an NR1 in the range 0 to 255 e g 255 255 255 0 Miscellaneous Commands IDN Returns the instrument identification The exact response is determined by the instrument co...

Страница 41: ...skilled personnel in conjunction with the Service Guide which may be purchased directly from the Manufacturers or their agents overseas Cleaning If the instrument requires cleaning use a cloth that is only lightly dampened with water or a mild detergent WARNING TO AVOID ELECTRIC SHOCK OR DAMAGE TO THE INSTRUMENT NEVER ALLOW WATER TO GET INSIDE THE CASE TO AVOID DAMAGE TO THE CASE NEVER CLEAN WITH ...

Страница 42: ... Huntingdon Cambridgeshire PE29 7DR England United Kingdom Telephone 44 0 1480 412451 Fax 44 0 1480 450409 International web site www aimtti com UK web site www aimtti co uk Email info aimtti com Aim Instruments and Thurlby Thandar Instruments ...

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