Aim-TTI CPX400D Page 31 Instruction Manual Download | Manualshive

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CONFIG?

Reports the operating mode. The response is <

NR

1><

RMT

>, where <

NR

1> is 2 for

outputs operating independently and 0 for voltage tracking mode.

RATIO <

NRF

>

Set the ratio of output 2 (slave) to output 1 (master) in tracking mode to <

NRF

>,

where <

NRF

> is the ratio in percent (0 to 100). Ratio can set at any time but will

not have any effect until voltage tracking mode is set (by using CONFIG <0>).

RATIO?

Query the ratio of output 2 (slave) to output 1 (master) in tracking mode. The
response is <

NRF

><

RMT

>, where <

NRF

> is the ratio in percent (0 to 100).

System and Status Commands

*CLS

Clear Status. Clears the Status structure. This indirectly clears the Status Byte
Register.

EER?

Query and clear Execution Error Register. The response format is nr1<

RMT

>.

*ESE <

NRF

>

Set the Standard Event Status Enable Register to the value of <

NRF

>

*ESE?

Returns the value in the Standard Event Status Enable Register in <

NR

1>

numeric format. The syntax of the response is <

NR

1><

RMT

>

*ESR?

Returns the value in the Standard Event Status Register in <

NR

1> numeric

format. The register is then cleared. The response is <

NR

1><

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 Standard Event Status Register.
This will happen immediately the command is executed because of the
sequential nature of all operations.

*OPC?

Query Operation Complete status. The response is always 1<

RMT

> and will be

available immediately the command is executed because all commands are
sequential.

*PRE <

NRF

>

Set the Parallel Poll Enable Register to the value <

NRF

>.

*PRE?

Returns the value in the Parallel Poll Enable Register in <

NR

1> numeric format.

The syntax of the response is <

NR

1><

RMT

>

QER?

Query and clear Query Error Register. The response format is nr1<

RMT

>

*RST

Resets the instrument to the remote control default settings with the exception of
all remote interface settings and Output state at power-on setting. (see Remote
Operation Defaults paragraph in the Remote Interface Operation section)

*SRE <

NRF

>

Set the Service Request Enable Register to <

NRF

>.

*SRE?

Returns the value of the Service Request Enable Register in <

NR

1> numeric

format. The syntax of the response is<

NR

1><

RMT

>

*STB?

Returns the value of the Status Byte Register in <

NR

1> numeric format. The

syntax of the response is<

NR

1><

RMT

>

*WAI

Wait for Operation Complete true. As all commands are completely executed
before the next is started this command takes no additional action.

Interface Management Commands

LOCAL

Go to local. This does not release any active interface lock so that the lock
remains with the selected interface when the next remote command is
received.

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Summary of Contents for CPX400D

Page 1: ...CPX400D DP PowerFlex Dual DC Power Supply ...

Page 2: ...s 9 Manual Operation 11 Remote Interface Operation CPX400DP only 17 Remote Commands CPX400DP only 27 Maintenance 32 Note The latest revisions of this manual device drivers and software tools can be downloaded from http www tti test com go csx This manual is 48511 1480 Issue 10 ...

Page 3: ...gle 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 CPX400DP only Output Sensing Switchable between local and remote Remote connection by spring loaded push terminals on front pan...

Page 4: ...on Output ON lamp Constant voltage mode lamp Constant current mode lamp Unregulated power limit lamp Remote lamp CPX400DP 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 Current 0 3 of reading 2 digits ADDITIONAL SPECIFICATIONS Independent Mo...

Page 5: ...rnet 100 10base T hardware connection 1 4 LXI Core 2011 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 1250VA max Operating Range 5ºC to 40ºC 20 to 80 RH Storage Range 40ºC to 70ºC Environm...

Page 6: ...on 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 for...

Page 7: ...e European Communities EMC Emissions a EN61326 1 2013 Radiated Class B b EN61326 1 2013 Conducted Class A c EN61326 1 2013 Harmonics referring to EN61000 3 2 2006 Immunity EN61326 1 2013 Immunity Table 1 referring to a EN61000 4 2 2009 Electrostatic Discharge b EN61000 4 3 2006 Electromagnetic Field c EN61000 4 11 2004 Voltage Interrupt d EN61000 4 4 2012 Fast Transient e EN61000 4 5 2006 Surge f ...

Page 8: ...ine only DC Output connections 3m therefore not tested Performance A A Signal lines were not tested on the basis that typical use will be with connections 3m for which there is no test requirement Immunity performance with connections 3m is not guaranteed According to EN61326 1 the definitions of performance criteria are Performance criterion A During test normal performance within the specificati...

Page 9: ...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 10: ... 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 CPX400DP only ...

Page 11: ...nected to instrument ground USB CPX400DP 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 CPX4...

Page 12: ... down press and hold down the OUTPUT key the display will first show the present setting for 1 second OP OFF if the factory default is still selected before flashing the new setting for 2 seconds LASt Set in this instance After 2 seconds the new setting is shown continuously in the display and the change is implemented release the OUTPUT and VIEW keys Repeating the procedure will change the settin...

Page 13: ...OM LIMITS remains selected until another range key is pressed Reselecting CUSTOM LIMITS with a short key press recalls the same custom limits as last set When CUSTOM LIMITS is selected the limit of the MAIN VOLTAGE control is exactly as set by the above procedure when the FINE control is set at its mid point marked on the panel with a The FINE control itself can be usefully used to give an additio...

Page 14: ...short thick connecting leads but where necessary it can be completely overcome by using the remote sense facility This requires the sense terminals to be connected to the output at the load instead of at the source insert wires into the spring loaded SENSE terminals and connect directly to the load Switch the LOCAL REMOTE switch to REMOTE To avoid instability and transient response problems care m...

Page 15: ...placed with the normal preset V and I readings When the cause of the trip has been removed 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 ...

Page 16: ...p is also flashed If the output is also on when these actions are attempted the message 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 ...

Page 17: ... necessary for both outputs to be in the same state i e both on or both off before the key is used Pressing the key with one output on and one output off will have no effect It is possible to switch from VTRACK back to Independent with LOCK still set on the Master The Master settings stay locked but the settings of the Slave are not locked The VTRACK status at power on is the same as at last power...

Page 18: ... 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 19: ...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 20: ...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 21: ...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 22: ... 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 23: ...g the 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 S...

Page 24: ...ers 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 se...

Page 25: ... 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 26: ...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 27: ... 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 28: ...urn CR followed by 0AH Line Feed LF WHITE 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...

Page 29: ...number with no fractional part i e an integer NR2 A number in fixed point format e g 11 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 ...

Page 30: ...e step size set for output N DECV N V Decrement 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...

Page 31: ...rue OPC Sets the Operation Complete bit bit 0 in the Standard Event Status Register This will happen immediately the command is executed because of the sequential nature of all operations OPC Query Operation Complete status The response is always 1 RMT and will be available immediately the command is executed because all commands are sequential PRE NRF Set the Parallel Poll Enable Register to the ...

Page 32: ...NETCONFIG Returns the first means by which an IP address will be sought The response is CRD RMT where CRD is DHCP AUTO or STATIC The following commands specify the parameters to be used by the LAN interface Note a power cycle is required after these commands are sent before the new settings are used or returned in response to the queries listed above The instrument does not attempt to check the va...

Page 33: ...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 cover Replace the fuse with one of the correct type and refit the cover Note that the main function of the fuse is to make the instrument safe and limit damage in th...

Page 34: ...Book Part No 48511 1480 Issue 10 ...

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