Aim-TTI CPX200D, Instruction Manual

Page 1: ...CPX200D DP PowerFlex Dual DC Power Supply INSTRUCTION MANUAL ...

Page 2: ... 7 Manual Operation 9 Remote Interface Operation CPX200DP only 15 Remote Commands CPX200DP only 25 Maintenance 30 Note The latest revisions of this manual device drivers and software tools can be downloaded from http www aimtti com support This manual is 48511 1720 Issue 8 ...

Page 3: ... current settings can be locked by a single button press Lock accuracy is equal to meter accuracy see Meter Specification Output Switch Electronic Preset voltage and current displayed when off Output Terminals Front panel Universal 4mm safety binding posts on 19mm 0 75 pitch Rear Panel Barrier strip connections CPX200DP only Output Sensing Switchable between local and remote Remote connection by s...

Page 4: ...ms 2s 1 5s Temperature Coefficient Typically 100ppm C Status Indication Output ON lamp Constant voltage mode lamp Constant current mode lamp Unregulated power limit lamp Remote lamp CPX200DP only LAN lamp Trip message on display METER SPECIFICATIONS Meter Types Dual 4 digit meters with 10mm 0 39 LEDs Reading rate 4 Hz Meter Resolutions 10mV 10mA Meter Accuracies Voltage 0 1 of reading 2 digits Cur...

Page 5: ...1 Remote Command Processing Time Typically 25ms between receiving the command terminator for a step voltage change at the instrument and the output voltage beginning to change GENERAL AC Input 110V 240V AC 10 50 60Hz Installation Category II Power Consumption 600VA max Operating Range 5ºC to 40ºC 20 to 80 RH Storage Range 40ºC to 70ºC Environmental Indoor use at altitudes up to 2000m Pollution Deg...

Page 6: ...ption is 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 ...

Page 7: ...ation on the equipment or in the Specification WARNING THIS INSTRUMENT MUST BE EARTHED Any interruption of the mains earth conductor inside or outside the instrument will make the instrument dangerous Intentional interruption is prohibited Ventilation The power supply is cooled by an intelligent multi speed fan which vents at the rear Take care not to restrict the air inlets at top bottom and side...

Page 8: ... rated at 30A Remote sense connections to the load if required are made from the positive and negative SENSE terminals Switch the LOCAL REMOTE switch to REMOTE when remote sensing is required Switch back to LOCAL when remote sensing is not in use The terminal marked is connected to the chassis and safety earth ground Rear Panel Connections CPX200DP only ...

Page 9: ...d to instrument ground USB CPX200DP only The USB port is connected to instrument 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 CPX200DP ...

Page 10: ...will change the setting back to the previous state Note that the power on status of the two outputs needs to be set individually Setting Up the Output With the POWER switch on l and the OUTPUT switch off the output voltage and current limit can be accurately preset using the VOLTAGE and CURRENT controls the upper meter shows the set voltage and the lower meter shows the set maximum current When th...

Page 11: ...ine adjustment of 1 of the range maximum Constant Voltage The output voltage is adjusted using the MAIN and FINE VOLTAGE controls the CURRENT control sets the maximum current that can be supplied The CV lamp lights to show constant voltage mode Constant Current If the load resistance is low enough such that at the output voltage set a current greater than the current limit setting would flow the p...

Page 12: ...by using coaxially screened cable sense through the inner Instability and poor regulation caused by noise on the sense leads when connected to complex loads can be minimised by fitting a suitable capacitor directly between each Sense terminal and its associated Output terminal at the PSU front panel A polyester or low ESR electrolytic with a value between 10uF and 100uF will generally be adequate ...

Page 13: ... the output can be switched on again Even with the output off the load is still connected to the power supply output stage Do not apply external voltages in excess of 70V to the power supply terminals or damage may result 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 Over temperature Protection ...

Page 14: ...age turn oFF is first shown in the display accompanied by the output lamp flashing followed by the message Unloc with the LOCK lamp flashing The LOCK status at power on is the same as at last power off Voltage Tracking Mode VTRACK can only be enabled or disabled with Output 2 the Slave off If an attempt is made to set VTRACK with the Slave output on then the message turn oFF is shown in the displa...

Page 15: ...that for CPX200D an OVP over voltage protection trip on one output in Voltage Tracking mode will only trip that output off leaving the other output on this is also the default mode for CPX200DP However for CPX200DP it is possible to configure both the OVP and OCP over current protection trip by remote commands such that both outputs are switched off when either output experiences an OVP or OCP tri...

Page 16: ... currently has the lock and may be queried from 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 bi...

Page 17: ...n or by the use of the LOCAL command will keep the V I settings at their last remotely set values with LOCK on and will leave the outputs in their present state VTRACK if set in remote mode will stay set when returning to Local Output 1 is LOCKed but not Output 2 however it effectively stays locked because it is tracking Output 1 RS232 Interface RS232 Interface Connector The 9 way D type serial in...

Page 18: ...oking for the unique Vendor ID and Product ID in which case the instrument will show in Device Manager as not working properly If this happens select this device right click and choose update driver software 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 thi...

Page 19: ...t any time the LAN lamp will go off see LAN Error section for details Web Server Configuration Password Protection The unit contains a basic web server This provides information on the instrument and allows it to be configured The Configure page can be password protected to deter unauthorised changes to the remote operation configuration the default configuration is no password The Configure page ...

Page 20: ... uses 2 sockets on TCP port 9221 for instrument control and monitoring Text commands are sent to this port as defined in Remote Commands and any replies are returned via the same port Any string must be one or more complete commands Commands may be separated with either semicolons or line feeds No terminator is required since the TCP frame contains complete commands though commands may be sent wit...

Page 21: ...e next PROGRAM MESSAGE UNIT from the input queue See the Status Reporting section for further information The IEEE 488 2 DEADLOCK error is handled as follows If the response formatter is waiting to send a response message and the input queue becomes full then the instrument enters the DEADLOCK state and an error is generated This will cause the Query Error bit to be set in the Standard Event Statu...

Page 22: ...these are described in the following paragraphs and shown on the Status Model at the end of this section Standard Event Status and Standard Event Status Enable Registers These two registers are implemented as required by the IEEE Std 488 2 Any bits set in the Standard Event Status Register which correspond to bits set in the Standard Event Status Enable Register will cause the ESB bit to be set in...

Page 23: ... Interface Locking section Limit Event Status and Limit Event Status Enable Registers For single output power supplies there is one Limit Event Status Register for dual power supplies except if operating in parallel mode there are two These are read and cleared using LSR1 and LSR2 respectively On power up these registers are set to 0 then immediately set to show new limit status Any bits set in a ...

Page 24: ...vent Status Enable Register Bit 4 MAV The Message Available Bit This will be set when the instrument has a response message formatted and ready to send to the controller The bit will be cleared after the Response Message Terminator has been sent Bit 3 Not used Bit 2 Not used Bit 1 LIM2 This will be set if any bits in Limit Event Status Register 2 are set and corresponding bits are set in Limit Eve...

Page 25: ... front panel controls 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 from the front panel to the same at power on as at switch off see Switching On paragraph in the Manual Operation section The RST reset interface command resets the instrument to the Remot...

Page 26: ...SPACE is defined as character codes 00H to 20H inclusive WHITE SPACE is ignored 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 opera...

Page 27: ... 52 0 78 etc N The number of the output 1 or 2 or associated status register to which the command relates 1 is the Master left hand output and 2 is the Slave right hand output CPD CHARACTER PROGRAM DATA CRD CHARACTER RESPONSE DATA The commands which begin with a are implemented as specified by IEEE Std 488 2 as Common commands All will function when used on the other interfaces but some may be of ...

Page 28: ...nt the output N voltage by the step size set for output N and verify INCI N Increment the output N current limit by the step size set for output N DECI N decrement the output N current limit by the step size set for output N OP N NRF set output N on off where NRF has the following meaning 0 OFF 1 ON OPALL NRF Simultaneously sets all outputs on off where NRF has the following meaning 0 ALL OFF 1 AL...

Page 29: ...NR1 RMT ESR Returns the value in the Standard Event Status Register in NR1 numeric format The register is then cleared The response is NR1 RMT See Status Reporting section for details IST Returns ist local message as defined by IEEE Std 488 2 The syntax of the response is 0 RMT if the local message is false or 1 RMT if the local message is true OPC Sets the Operation Complete bit bit 0 in the Stan...

Page 30: ... the static IP if configured to always use that static IP otherwise it will be 0 0 0 0 if waiting for DHCP or Auto IP The response is nnn nnn nnn nnn RMT where each nnn is 0 to 255 NETMASK Returns the present netmask of the LAN interface provided it is connected The response is nnn nnn nnn nnn RMT where each nnn is 0 to 255 NETCONFIG Returns the first means by which an IP address will be sought Th...

Page 31: ...rs or their agents overseas Fuse The correct fuse type is 10 Amp 250V HBC time lag T 5 x 20mm Make sure that only fuses of the required rated current and specified type are used for replacement The use of makeshift fuses and the short circuiting of fuse holders is prohibited To replace the fuse first disconnect the instrument from the AC supply Remove the 6 cover securing screws and lift off the c...

Page 32: ... 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 ...