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TTI QPX600D Instruction Manual

Powerflex + dual dc power supplies
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QPX600D & QPX600DP
PowerFlex+ Dual DC Power Supplies
INSTRUCTION MANUAL

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Summary of Contents for TTI QPX600D

  • Page 1 QPX600D & QPX600DP PowerFlex+ Dual DC Power Supplies INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    Manual Operation – Independent Mode Manual Operation – Link Modes Maintenance Remote Operation Remote Commands (QPX600DP only) Note: The latest revisions of this manual, device drivers and software tools can be downloaded from: http://www.tti-test.com/go/qsx This manual is 48511-1460 Issue 7...

  • Page 3: Specification

    Resolution: 1mV (60V Range), 2mV (80V Range) Accuracy: 0.1% of setting ± 2mV, (± 4mV on 80V range) Current Setting: Resolution 10mA QPX600D & DP Accuracy: 0.3% of setting ± 20mA Power Envelope (per channel) Operating Mode: Constant voltage or constant current...
  • Page 4 METER SPECIFICATIONS (Each Output) Display Type: 5-digit (Volts), 4-digit (Amps), black-on-white backlit LCD. Voltage Resolution 1mV (CI Mode and Unreg): Accuracy: 0.1% of reading ± 2 digits Current Resolution 10mA (CV Mode and Unreg): Accuracy: 0.3% of reading ± 2 digits V x A: Resolution 0·1W Accuracy: 0·5% ±...
  • Page 5 DISPLAY FEATURES The displays (one for each output) are graphic LCDs, backlit by white LEDs; contrast is software- controlled and can be adjusted from the keyboard. The default status displays show the VOLTS (5 digits) and AMPS (4 digits) in 12mm high characters, plus output range and status.

  • Page 6: Ec Declaration Of Conformity

    Cambridgeshire PE29 7DR England declare that the QPX600DP & QPX600D Power Supplies meet the intent of the EMC Directive 2004/108/EC and the Low Voltage Directive 2006/95/EC. Compliance was demonstrated by conformance to the following specifications which have been listed in the Official Journal of the European Communities.

  • Page 7: Emc

    This instrument has been designed to meet the requirements of the EMC Directive 2004/108/EC. Compliance was demonstrated by meeting the test limits of the following standards: Emissions EN61326-1 (2006) EMC product standard for Electrical Equipment for Measurement, Control and Laboratory Use. Test limits used were: Radiated: Class A Conducted: Class A...

  • Page 8: Safety

    Safety This power supply is a Safety Class I instrument according to IEC classification and has been designed to meet the requirements of EN61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use). It is an Installation Category II instrument intended for operation from a normal single phase supply.

  • Page 9: Installation

    Installation Mains Operating Voltage This instrument has a universal input range and will operate from a nominal 115V or 230V mains supply without adjustment. Check that the local supply meets the AC Input requirement given in the Specification. Mains Lead Connect the instrument to the AC supply using the mains lead provided.

  • Page 10: Connections

    Connections Rear Panel Connections Output Terminals (each output) The load should be connected to the positive (red) and negative (black) terminals marked OUTPUT. The terminals accept 4mm plugs into the end (but note that 4mm plugs will only support 30 Amps), 6mm diameter wire or plugs into the cross-hole or 8mm spade connections (with a maximum blade width of 16mm).
  • Page 11 Analogue Monitor (each output) The output terminal voltage and output current may be monitored on V MONITOR and I MONITOR respectively. The output scaling for both is the same as that set for V CONTROL and I CONTROL, see previous section. The Analogue Monitor outputs should be connected to a measuring system with ‘floating’...

  • Page 12: Initial Operation

    Initial Operation This section of the manual is a general introduction to the controls and operation of the instrument and is intended to be read before using the power supply for the first time. In this manual front panel keys, connections and indicators are shown in capitals, e.g. ESCAPE, JOG SET, OUTPUT, ON.
  • Page 13 Pressing SHIFT illuminates the ▲ lamp and gives the numeric keys the functions marked above them, e.g. STR (Store), RCL (Recall), etc. When a shift function is selected SHIFT is cancelled (the ▲ lamp is no longer lit). The further key presses required to complete the selected function are described in detail in the sections that follow;...

  • Page 14: Manual Operation - Independent Mode

    Manual Operation – Independent Mode New users should first read the Initial Operation chapter which describes the operating principles of the keypad and rotary jog control. The default mode at power-up is ‘Tracking Off’, i.e. the two outputs are fully independent. The following sections describe operation of either output in this mode.
  • Page 15 The default position at power-up is under the LSD, i.e. the lowest jog increment is selected. The jog steps that can be selected are 1mV (2mV for the 0-80V range), 10mV and 100mV. With jog enabled the output voltage can be incremented or decremented with the rotary jog control with a step resolution indicated by the position of the JOG indicator.
  • Page 16 Power Limit The maximum current at different voltage settings is limited by the power envelope illustrated below: QPX600D & DP Power Envelope The power envelope is set to give 80V/7.5A and 10V/50A under all supply conditions (both outputs loaded); at lower output voltages the output power is restricted by the 50A current maximum.
  • Page 17 Connection to the Load The load should be connected to the positive (red) and negative (black) OUTPUT terminals. Both are fully floating and either can be connected to ground. Warning! Voltages above 70Vdc are hazardous live according to EN 61010-1 and great care must be taken when using the power supply at voltages above this level.
  • Page 18 It should be noted that the unit can only source current and cannot sink it, thus units cannot be series connected in anti-phase. The unit can be connected in parallel 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.
  • Page 19 Output Protection In addition to OVP and OCP for forward 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. Temperature Trip and Other Faults If the safe internal temperature limit is exceeded because, for example, the fan vents have been blocked, the output is automatically tripped off.
  • Page 20 Store Settings The instrument can store 10 set-ups in non-volatile memory; the parameters stored are voltage, current limit, OVP and OCP. The output state and remote sense setting are not stored. To store a set-up press SHIFT, STORE to show the store locations and the currently saved set-ups on the screen.
  • Page 21 # Code Function Output always off at power-up (factory default) Output status at power-up same as at last power-down LOGIC OUT 'closed' for Output ON, 'open' for Output OFF (factory default) LOGIC OUT ‘closed' for Output OFF, 'open' for Output ON LOGIC OUT ‘closed’...

  • Page 22: Manual Operation - Link Modes

    Manual Operation – Link Modes In addition to independent output operation, described in the Manual Operation – Independent Mode chapter, the instrument is capable of operating in a number of different tracking modes which can be activated from the LINK MENU. If either output is under analogue control then pressing ‘LINK MENU’...

  • Page 23: Maintenance

    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 SOLVENTS. Web link For the latest version of this instruction manual, IVI driver and any applicable firmware updates go to http://www.tti-test.com/go/qsx .

  • Page 24: Remote Operation

    Remote Operation The QPX600DP can be remotely controlled via its RS232, USB, GPIB, LAN or Analogue interfaces; the QPX600D has Analogue interfaces only. USB remote control operates in a similar way to RS232 but via the USB connector. Software supplied with the instrument sets up the controlling computer to treat the USB connection as a virtual COM port.
  • Page 25 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 put 200 into the Execution Error Register to indicate that there are not sufficient privileges for the required action. Note: it is also possible to configure the privileges for a particular interface to either ‘read only’...
  • Page 26 Windows 2000, XP, Vista and Windows 7; the installation wizard will install the driver (32-bit or 64-bit) appropriate to the PC’s operating system. Any updates are available via the TTi website, www.tti-test.com. Installation of the interface driver is achieved by connecting the instrument to a PC via a standard USB cable.
  • Page 27 LAN Status Indication The LAN Status is displayed in the top left hand corner of the display during normal operation. It is not shown on all menus. There are 4 possible indications: No LAN If the unit cannot detect any connection to a LAN e.g. the cable is unplugged then the LAN status indicator is Configuring The unit has detected a LAN connection but is not yet configured, e.g.
  • Page 28 VISA Resource Name Because of the limited support for VXI-11(Discovery Protocol only), the instrument must be referred to by its raw socket information when used in software packages which communicate via a VISA resource name. For example, an instrument at IP address 192.168.1.100 would normally have a VISA resource name of "TCPIP0::192.168.1.100::inst0::INSTR"...
  • Page 29 This will cause the Query Error bit to be set in the Standard Event Status Register, a value of 1 to be placed in the Query Error Register and the response formatter to be reset thus clearing the output queue. The parser will then start parsing the next from the input <PROGRAM MESSAGE UNIT>...
  • Page 30 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 the Status Byte Register. The Standard Event Status Register is read and cleared by the *ESR? command.
  • Page 31 The Limit Event Status Register is read and cleared by the LSR<n>? command. The Limit Event Status Enable Register is set by the LSE<n> <nrf> command and read by the LSE<n>? command. Bit 7 - Reserved for future use Bit 6 - Set when a fault trip has occurred which requires AC power OFF/ON to reset.
  • Page 32 Status Model Power on Settings The following instrument status values are set at power on: Status Byte Register Service Request Enable Register † Standard Event Status Register = 128 (pon bit set) Standard Event Status Enable Register † Execution Error Register Query Error Register Parallel Poll Enable Register †...

  • Page 33: Remote Commands (Qpx600Dp Only)

    Remote Commands (QPX600DP only) Remote Command Format RS232 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 instrument will send XOFF when approximately 200 characters are in the queue.

  • Page 34: Operating Modes

    Operating Modes There are five operating modes for the instrument (listed in the following table) of which four may be selected under digital remote control. Voltage Tracking: Output V2 tracks V1 at a fixed ratio of 5% to 2000%. This mode can only be entered if both V1 and V2 are set to >1 volt. The ratio is automatically set on entry to this mode to match the existing ratio of V2 to V1.
  • Page 35 Instrument Specific Commands For commands specified as 'WITH VERIFY' the operation is completed when the parameter being adjusted reaches the required value to within ±5% or ±10 counts, whichever is the greater. If the value fails to settle within these limits within 5 seconds then the Verify Timeout bit (bit 3) is set in the Standard Event Status Register and the operation is completed at the end of timeout period.
  • Page 36 OPALL <nrf> Simultaneously sets all outputs on/off where <nrf> has the following meaning: 0=ALL OFF, 1=ALL ON. If OPALL sets all outputs ON then any that were already on will remain ON If OPALL sets all outputs OFF then any that were already off will remain OFF SENSE<n>...
  • Page 37 *PRE <nrf> Set the Parallel Poll Enable Register to the value <nrf>. *PRE? Report the value in the Parallel Poll Enable Register. The response is <nr1><rmt>. *SRE <nrf> Sets the Service Request Enable Register to <nrf> *SRE? Report the value in the Service Request Enable Register. Response is <nr1><rmt>.
  • Page 38 Thurlby Thandar Instruments Ltd. Glebe Road • 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 Book Part No.

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Qpx600dp

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