Operating Instructions SSP KONSTANTER 62 N and 64 N Series SSP 500, SSP 1000, SSP 2000 and SSP 3000 Programmable Power Supplies Series 62 N Series 64 N 3-349-262-03 5/1.
GMC-I Messtechnik GmbH
Contents Page Contents I II Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Warnings and Safety Precautions . . . . . . . . . . . . . . . . . .4 1 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . .5 1.1 Page 4.15 INCR <> and DECR <> Keys . . . . . . . . . . . . . . . . . . .47 4.16 Device RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 4.17 Selecting Remote and Local Control Modes . . . . . . . . . . . . . .
I Initial Inspection Immediately after receipt, unpack the KONSTANTER and all included accessories, and inspect for damage and completeness. Unpacking • • Other than the usual care exercised in handling electronic equipment, no additional precautions are required when unpacking the instrument. The KONSTANTER is delivered in recyclable packaging, which provides for adequate protection during transport as substantiated by testing.
1 Technical Description 1.1 Features and Range of Applications SSP KONSTANTERs (single-output system power supplies) are manual and remote controllable DC power supplies for laboratory and system use. Despite high output power, the power supplies are small and lightweight. The floating output features “safety electrical separation” from the mains input as well as optional computer interfaces, and is classified as a safety extra-low voltage circuit (SELV) in accordance with VDE/IEC.
1.4 Functional Principle the mains power circuit, the control and interface circuit, and the output circuit. 62 N: D 64 N: I+K+M Figure 1.4 shows a schematic diagram of the SSPKONSTANTER. The delineations indicate distribution of the circuit to the individual printed circuit boards, as well as subdivision of Figure 1.
Power Supply Required DC supply power is generated for each respective circuit from mains power which has been fed to the power pack via an interference suppression filter, a wire fuse, the mains switch and inrush current limiting. Series 64 N SSP KONSTANTERs are supplied with power from a 3-phase mains system (relative to the neutral conductor). Central Processing Unit (CPU) Overall control of the SSP-KONSTANTER is accomplished by means of the CPU on PCB A.
1.5 Technical Data Power Supply Line voltage 1.5.1 General Data 64 N: Output Regulator type Operating modes Primary switched-mode regulator Adjustable constant voltage / constant current source with automatic sharp transition Output insulation Floating output with “safe electrical separation” from the mains input and computer interfaces Max. allowable potential, output to ground: 120 V Capacitance, output to ground (housing) Series 62 N: 500 W / 1000 W: typ. 90 nF Series 64 N: 2000 W / 3000 W: typ.
1.5.2 Mechanical Data Module Type Benchtop device, suitable for rack mounting Dimensions (W x H x D) See also dimensional drawings. 62 N: 19" x 2 std. height units x 500 mm 64 N: 19" x 4 std. height units x 500 mm 62 N: 500 W: approx. 12 kg 1000 W : approx. 13 kg 64 N: 2000 W: approx. 22 kg 3000 W : approx. 28 kg Weight IEC 625 – IEEE 488 Interface (option b) 24-pin IEEE 488 socket connector IEC 625.1, IEEE 488.1 Connector Pin Assignments Twist with opposing wires RS 232C interface (optional) approx.
Dimensional Drawings Series 62 N 482.6 465 76.2 449 40 13 88 500 Slot for optional IEEE-488 – RS 232C or RS 232C interface, IEEE-488 – RS 232C interface is shown here (part no. K382A).
Series 64 N 482.6 465 101.6 449 40 13 177 500 Shown with optional RS 232C interface (part no. K383A).
1.5.3 Electrical Data Electrical Data for 52 V Models: xx N 52 RU ... Unless otherwise specified, entries are maximum values and apply within an operating temperature range of 0 to 50° C after a warm-up period of 30 minutes. Article Number Type Nominal output data K344A K345A 62 N 52 RU 25 P 62 N 52 RU 50 P Voltage setting range 0 ... 52 V 0 ... 52 V Current setting range 0 ... 25 A 0 ... 50 A Power max. 500 W max.
Electrical Data for 80 V Models: xx N 80 RU ... Unless otherwise specified, entries are maximum values and apply within an operating temperature range of 0 to 50° C after a warm-up period of 30 minutes. Article Number Type Nominal output data K341A K343A 62 N 80 RU 12.5 P 62 N 80 RU 25 P Voltage setting range 0 ... 80 V 0 ... 80 V Current setting range 0 ... 12.5 A 0 ... 25 A Power max. 500 W max.
2 Initial Start-Up 2.1 Preparing for Operation Note: Numbers in brackets refer to figures in chapter 3. 2.1.1 Installing the Optional IEEE 488 – RS 232C Interface Module Variant 1 or 2, see chapter 1.3. Caution! The device must be switched off when installing the interface module. The interface module may be damaged by electrostatic discharge. Observe guidelines for handling electrostatic sensitive devices. Do not touch electrical contacts or PCB components. 1.
b) RS 232C Interface Only two devices can be connected to each other with this serial interface, namely a controller and the device to be controlled. If you intend to control several devices with a single controller, the controller must be equipped with suitable interfaces. Most controllers include two serial ports which are commonly designated COM1 and COM2, and which are equipped with 25 or 9-pin subminiature plug connectors.
3 Controls, Display Elements and Terminals 6 9 10 13 14 12 15 16 17 24 25 Series 62 N 19" Rack 1 2 3 4 5 8 7 11 18 19 20 22 21 23 1 Series 64 N 19" Rack Slot for installing optional interfaces 26 31 37 36 Series 62 N Rear Panel 32 Shown with optional IEEE 488 – RS 232C interface 26 31 33 34 32 35 35 36 37 Series 64 N Rear Panel 30 16 27 33 34 38 GMC-I Messtechnik GmbH
Note: Numbers in brackets make reference to figures on page 19. [1] Rack mounting tabs (included accessories) for mounting to a 19" rack Assembly: – Unscrew the handles at the front. – Pull out the filler strips at the sides and replace them with the included rack-mount fastening tabs. – Replace the front handles. [2] Front handles For carrying the device or pulling it from the 19" rack The handles can be removed if desired (turn M4 screws with a maximum length of 8 mm into the empty threaded holes).
value for the selected parameter appears at the display. This value can be increased <> or decreased <> within predefined limits with the parameter adjusting keys. Pressing the key briefly results in a single step, and if the key is pressed and held the value is advanced through a series of consecutive steps. The setpoint value is changed simultaneously along with the display value.
3. Acknowledge and execute the selected setting by pressing the key. Both displays return to default values Uout and Iout. If the rotary knobs or other function keys are activated, the function menu is exited and settings remain unchanged. Exceptions:
[32] Analog interface The analog interface facilitates the following functions: – Remote adjustment of output voltage and current with analog control voltages ranging from 0 to 5 V ( chapter 5.3 / chapter 5.4) – External measurement or recording of output voltage and current based on monitor signals 0 to 10 V ( chapter 5.5 / chapter 5.6) – Connection of sensing leads for the compensation of voltage drops within the output leads ( chapter 5.
4 Manual Operation and Device Functions Uout / V Uset / V Ulim / V OVset / V Pout / W Uset SELECT 4.2.1 Direct Selection (rotary knobs and arrow keys) Iout / A Iset / A Ilim / A DELAY / s Pout / W Iset SELECT OUTPUT Uout/ Iout/A Uset/V Iset/A Ulim/ Ilim/A OVset/ Delay/s Pout/ Pout/ Important menu functions can be selected directly with the
Pre-selecting a Setpoint Uset – Selecting a Setpoint for Output Voltage ☞ Press the key [15]. ! Function • • • • Adjustment with the Uset rotary knob [8] is not enabled until 0.4 seconds after the digital display [9] has been switched to the respective function. This delay time prevents inadvertent changes to Uset during selection of the Uset display. The rotary knob must be adjusted after this time period has elapsed in order to change the Uset setting.
4.3 Switching the Power Output On and Off 4.4 Limiting the Allowable Working Range: Ulim, Ilim The
! 4.5 Description of OVP and OCP Protection Functions Protection for the connected power consumer and the KONSTANTER by means of the following functions: OVP – overvoltage protection • • Function • • • • • Protection for the connected power consumer If voltage at the output terminals exceeds the selected OVSET value, the power output is deactivated. Triggering of overvoltage protection causes immediate (< 200 s) deactivation of the output (OUTPUT OFF).
4.7 Operating Menu via the FUNCTION Key FUNCTION The FUNCTION menu consists of the following functions for configuring the KONSTANTER’s parameters: Function group ■ OCP Pon TP: oFF / on TP: rSt / SbY / rcL UI- TP: oFF / on / rSt rnd TP: 0 / -1 / -2 trG tSEt tdEF Strt StoP reP SEq** Addr bAUd dbit Pbit Sbit e.g. Figure 4.7 a * Accessing the Functions Submenu ☞ If the function group menu is currently open, you can access the following function groups: FUNCTION NP: 0 / 1 / ... / 13 /...
4.7.1 SET – “Setup” Function Group FUNCTION OCP – Activate Overcurrent Protection Functions Press once See functions description on page 24. ENTER Setting Parameters Jump to last edited setup function FUNCTION + Press repeatedly if necessary ☞ OFF (default setting after RESET (*RST)) OCP function inactive Continuous current limiting (current regulation) ☞ ON OCP function activated The output is deactivated as soon as current limiting has been active for the specified DELAY time.
Pon – Output Switching Status, Response After Power On UI_ – Configure U/I Min-Max Measured Value Memory (MINMAX) Functions Functions • • Automatically determines KONSTANTER configuration after power on. • Setting Parameters: ☞ rSt (RESET): Factory default settings are utilized. • ☞ SbY (STANDBY): Same settings as prior to shutdown, power output remains inactive (OUTPUT OFF). Disabled front panel controls are re-enabled after power on. As from firmware version 3.
UI_ – Display Measured Values in U/I Min-Max Memory rnd – Rounding Off the Displayed Measured Value Functions Applications • The ROUND function can be used where fluctuating measured values are to be expected due to the application (e.g. in manufacturing), which may cause unnecessary concern. • Reads out stored values for Umin, Umax, Imin and Imax at the display, or via the computer interface. Stored Min-Max values can be read out regardless of the status selected for the MINMAX function.
4.7.2 AnIF – “Analog Interface” Function Group The analog interface allows for remote control of the KONSTANTER. A floating digital control input with several selection functions (TRG IN+ / TRG IN-) is available in addition to analog setting options (chapter 5). trG – Function Selection for Trigger Input Functions • • • Floating optocoupler input (TRG IN) at the analog interface The trigger input is controlled with a digital signal (low: 0 V, high: 4 ... 26 V). Response time is approximately 1 to 15 ms.
4.7.3 SEq – The “Sequence” Function Group Responses to Sequence Start and Stop Commands • Description Test sequences can be generated with the SEQUENCE function group (in accordance with DIN if desired). Setpoints are specified for voltage (Uset) and for current (Iset), as well as for the associated time intervals (tset) to this end. . Tset1 Tset2 15 U/V • Tset3 2000 • 20 • 12 • 6 4,5 • t/ms Figure 4.7.
FSEt - memory location-specific voltage or current function tSEt – Memory Location-Specific Dwell Time Function Functions • Special dwell time (see also Figure 4.7.3): • For the voltage-current value pair at a specific memory location within a SEQUENCE • This parameter determines which function is to be performed during the transition to this memory location.. This command has been available as from firmware version 03.004.
tdEF – Dwell Time Independent of Memory Location Strt – Sequence Start Address Functions Functions • • • Default dwell time for all voltage-current value pairs included in a sequence to whose memory locations no special dwell time has been assigned (tSEt = 00.00) tdEF is used primarily to speed up programming if the value for a certain dwell time is used repeatedly within a given SEQUENCE. • • Setting Range 0.01 s to 99.99 s Maximum resolution: 0.
StoP – Sequence Stop Address rEP – Sequence Repetitions Functions Functions • • • • • • • • ! The end of a range within which memory locations or content will be deleted or added The SEQUENCE is always defined by means of a start address and a stop address. Memory location at which a SEQUENCE will be ended The stop address can correspond to any memory location from 11 to 255. The stop address is selected immediately prior to initially starting a new SEQUENCE.
SEq – Sequence Control Functions • Controls automatic and step-by-step sequence runs. ENTER Setting Parameters ☞ Strt: activate sequence control, jump to start address (status: RDY HOLD) Execute command with the key. FUNCTION + Jump to the start address or the first address with valid contents Step-by-step control ☞ GO: SEQUENCE begins at start address (status: RDY RUN) Execute command with the key.
Setting all Required Values for a Sequence Read the detailed explanations included in chapter 4.6 and 4.7.3 first. 1 Press the key. 2 The function group or function menu appears. FUNCTION 1 Function Group Menu 2 Function Menu 3 If the function menu is not displayed, press the key in order to return to the function groups menu. 4 If the functions menu is displayed, repeatedly press the key until SEq appears at the left-hand display (the right-hand display remains blank).
Checking the Sequence Functions ! The following parameters can be checked at the display menu while the SEQUENCE is running, or when it has been suspended: > Pout = max.
• • The output retains its switching status (output On or Off). The SEQUENCE can be resumed (cont) at the next memory location, or ended at the current address or the stop address (stop) or restarted (go). In addition, step-by-step control can be started at the next address (Step) or at the start address (Start) as well.
(status: HOLD HOLD) Functions ! ! • • The next memory location can be selected at any time from a suspended SEQUENCE. The setpoints saved to the next memory location are executed. Selected dwell times of the exited and the new memory address are not taken into consideration. The device is switched from automatic sequence to step-bystep control the first time this step is executed (see page 36). The output retains its switching status (output On or Off).
bAud – Setting Transmission Speed (RS 232C) • • • • • ENTER Activate the setting Abort without change Settings ☞ Procedure for selecting bAUd, and setting the desired transmission speed (see chapter 4.7). ! bAUd appears in the bUS display along with the related parameter (transmission speed). Select the text parameter from an options loop ENTER • • Activate the setting Abort without change ! FUNCTION SAVE RCL ! FUNCTION MENU Figure 4.7.
Sbit – Selecting the Number of Stop Bits (RS 232C) Uout/ Iout/A • Uset/V Iset/A Ulim/ Ilim/A Settings OVset/ Delay/s ☞ Procedure for selecting Sbit and setting the parameter (see also chapter 4.7). Pout/ Pout/ ! ! Either 1 or 2 stop bits can be used. Settings at the SSP KONSTANTER and the controller must be identical. Sbit appears in the bUS display along with the related parameter (number of stop bits). Figure 4.8.1 4.8.
4.9 Setting Resolution with the Key Settings Numeric parameters can be set to varying degrees of accuracy. Set the cursor to the desired decimal place within the display to this end. The corresponding decimal place blinks in order to indicate the current cursor position. Resolution can be set for the following parameters: ☞ Uset, Iset, Ulim, Ilim, OVset, Delay, tset and tdef ☞ Select values for the desired parameters. ☞ Press the key.
4.10.3 Clearing the Contents of a Defined Memory Range Functions ☞ Press the key. • ! clr dAtA and start stop blink alternately at the display in order to identify the range to be deleted. ☞ Acknowledge by pressing the key. All data are deleted from memory locations from the current start address to the current stop address. Settings ! ☞ Press the key. ☞ Select memory location 0 (clr) with the <> key or the <> key.
4.10.4 Inserting a Memory Location Settings The start and stop addresses define the working range for the command described below. Memory locations which do not lie within this range are protected against access when executing this command. Each time an empty memory location is inserted, the contents of the previous stop address are lost. ☞ Select a start address and a stop address with the help of the sequence submenu. ☞ Press the key.
4.10.5 Deleting a Memory Location Settings The start and stop addresses define the working range for the command described below. Memory locations which do not lie within this range are protected against access when executing this command. Each time a memory location is deleted, an empty memory location is inserted at the stop address. ☞ Select a start address and a stop address with the help of the sequence submenu. ☞ Press the key.
4.10.6 Deleting the Contents of a Memory Location Settings ☞ Press the key. Functions • • ! Sto and the last selected address appear at the display. ☞ Select the desired address with the <> key or the <> key. The contents of any desired individual memory location from address 11 through 255 can be deleted. This has no effect on other memory location addresses. ☞ Simultaneously press the and keys.
☞ Press the key. Activating Parameter Values ! rcl appears at the left-hand display, and the last selected memory location number appears at the right-hand display. ☞ Select the desired address (11 ... 255) by pressing the <> key or the <> key. Textual or numeric parameter values are activated with the key during device setup. ☞ Acknowledge your selection with the key. : save data to the selected address. : recall data saved to the selected address.
Sequence Control ☞ key Abort a suspended sequence or step-by-step control at the current memory location. 4.15 INCR <> and DECR <> Keys The increment and decrement keys execute various functions depending upon settings. Parameter Selection Text parameters <> or <> displays next or previous parameter. Acknowledge the respective text parameter with the key. Abort with rotary knob , , or .
5 Analog Interface 5.1 Pin Assignments +15 V (output) Internal auxiliary voltage (+15 V 3% with reference to AGND) is connected to this terminal via a protective resistor with a value of 510 . It can thus be used to drive the TRIGGER input, or to supply power to external components such as reference elements for the generation of control voltages. The output is short-circuit proof to AGND. 510 +15 V +15 V 18 V 110 mA AGND AGND (analog ground) Reference point for analog control inputs and outputs.
5.2 Auto-sensing mode Functions Output voltage values required for voltage measuring and control circuits can be acquired directly at the power consumer instead of at the output terminals with the help of the +SENSE and – SENSE sensing lead terminals at the analog interface.
5.3 Regulating Output Voltage 5.4 Regulating Output Current Functions The control inputs Uset+ (non-inverting) and Uset GND (inverting) allow for adjustment of output voltage Uout with an external control voltage USU. The following applies in the constant voltage regulating mode: Uout = USET + USU x kSU Functions The control inputs Iset+ (non-inverting) and Iset GND (inverting) allow for adjustment of output current Iout with an external control voltage USI.
5.5 Voltage Monitoring Output 5.6 Current Monitoring Output Functions The U-MONITOR terminal reads out a voltage with reference to AGND, which is proportional to output voltage Uout. This is used as a control voltage for master-slave series connection (see 5.9.2). However, it can also be used for external measuring, monitoring and recording. Functions The I-MONITOR terminal reads out a voltage with reference to AGND, which is proportional to output current Iout.
5.7 Trigger Input Functions The floating TRIGGER + input with optocoupler allows for remote control of a device function by means of a binary signal. The function to be controlled is selected with the T_MODE setting (in the trG display). A detailed description is included on page 74. Trigger Function setting Parameters Parameter Meaning OFF Trigger input function is deactivated, trigger signals have no effect. OUT Connection Connect the control signal to TRIGGER + and TRIGGER –.
5.8 Parallel Connection If output current from a single KONSTANTER is insufficient for the respective application, the outputs of any number of KONSTANTERs can be parallel connected. Caution! If outputs with different nominal voltages are parallel connected, all outputs must be limited to the lowest utilized nominal voltage value. The ULIM parameter is used to select this setting. 5.8.
5.8.2 Master-Slave Parallel Connection Functions As opposed to direct parallel connection, master-slave parallel connection offers significant advantages: – Equally suitable for voltage and current regulation – Output parameters (output voltage, cumulative current limiting) are set entirely by the master device. – All interconnected KONSTANTERs are equally loaded. Wiring Define one power supply as a master device. Connect master and slave devices as shown in Figure 5.8.2.
5.9 Series Connection If output voltage from a single KONSTANTER is insufficient, or if you want to generate a ± voltage, the outputs of several KONSTANTERs can be connected in series. WARNING! Maximum allowable cumulative voltage for series connection is 120 V (or 240 V with grounded neutral point). 5.9.1 Direct Series Connection Caution! If outputs with differing nominal values are series connected, the highest selected current value is present at all outputs in the event of shortcircuit.
5.9.2 Master-Slave Series Connection Functions As opposed to direct series connection, master-slave series connection offers significant advantages: – Equally suitable for voltage and current regulation – Output parameters (cumulative output voltage, current limiting) are set entirely by the master device. – All interconnected KONSTANTERs are equally loaded. Wiring Define one power supply as a master device. Connect master and slave devices as shown in Figure 5.9.2.
5.10 Varying the Internal Output Resistance Value Functions In the voltage regulating mode, internal output resistance has a value of close to 0 . The internal output resistance value can be increased for certain applications, for example simulation of long output cables or weak automotive batteries. The selected (open-circuit) output voltage is reduced in proportion to increasing load (Figure 5.10a). Connection Connect the analog interface as shown in Figure 5.10c.
6 Operating Commands Query Commands Nearly all of the functions of the SSP KONSTANTER can be remote controlled via the IEEE 488 interface (= IEC 625), or the RS 232C interface. With the exception of a few functions specific to the IEC bus, all device settings and device responses are triggered with character strings which are transmitted in ASCII code.
6.2 IEEE 488 Functions Terminating Device Messages a) For IEEE 488 remote control The following end-of-text characters can be used for data receive: NL New line = line feed = (0Ah) NL & EOI EOI = end or identify DAB & EOI DAB = last data byte The still common end-of-message character combination CR LF (0Dh followed by 0Ah) should no longer be used according to the standard. Although it is accepted by the device for data receive, it should be used in combination with EOI.
6.4 Description All setting, query, register management and interface commands are listed alphabetically in the following pages (*A..., *B..., *C..., ..., A..., B..., C..., ...). In addition to the application-specific overview in the previous chapter, setting, query and status commands are included in the appendix arranged according to function. *CLS – Clear Status Functions The *CLS command Clears all event registers and the status byte register, except for the MAV bit.
Programming The device is furnished with three 8-bit event registers, each of which can be individually queried. When an event register is queried, its content is deleted. The *CLS command (CLEAR STATUS) can be used to clear all event registers.
*PSC, *PSC? – Power-On Status Clear Flag Query Functions The power-on status clear flag (PSC) determines whether or not the contents of the non-volatile enable registers will be cleared when the device is shut down.
*SAV – Saving Device Settings Functions Current device settings can be saved to battery-backed memory with the *SAV (SAVE) command. Syntax All data stored with the SAVE function are retained in batterybacked memory when the device is switched off.
b) Via the IEC bus interface as addressed interface command GET (GROUP EXECUTE TRIGGER) Programming examples (HP Basic): TRIGGER 712 !triggers the device !with address 12 TRIGGER 7 !all listener addressed !devices will be triggered Comment If trigger action has not been defined (empty DDT memory), bit 4 (EXE, execution error) is set in the standard event register upon receipt of the device trigger command. The *TRG command may not be used as part of the DDT command.
Service request SRQ Unchanged Status byte register MAV bit = 0, otherwise unchanged Event registers ESR, ERA, ERB Unchanged Enable registers ESE, ERAE, ERBE, SRE, PRE Unchanged Set and stored parameters Unchanged Programming The device accepts this command: a) Via both interfaces as device message “DCL” or “SDC” (setting command) Programming example (HP Basic): OUTPUT 712;"DCL" b) Via the IEC bus interface as addressed command SDC (SELECTED DEVICE CLEAR) Programming example (HP Basic): CLEAR 712 c) Via the
Query Command Syntax: FSET? Sample response string: FSET NF Parameter list Parameter txt Content Meaning NF SEQUENCE-values USET, ISET, TSET without additional function RU Voltage ramp, duration TSET or TDEF RI Current ramp, duration TSET or TDEF IFC – Resetting the IEC Bus Interface (interface clear) Functions The IEC bus interface at the device is re-initialized with the IFC (INTERFACE CLEAR) bus interface command, and is returned to the standard default settings.
function set to ON, “–OL” appears at the display for IMIN and “–999999.” is entered to the data string. The Min-Max memory value can be reset to the momentarily measured value with MINMAX RST (for all 4 parameters at once). a) Manual Operation See description on page 28. b) Programming Measured value query Query command: IMIN? Response string: IMIN value Response parameter format value: ±nnn.
Storage of Min-Max values activated RST Contents of Min-Max memory are reset, i.e. are replaced with the momentary measured value for the corresponding parameter: Umin = Uout Umax = Uout Imin = Iout Imax = Iout Default setting after RESET (*RST): OFF a) Manual Operation See description on page 28.
Fixed response string length: 7 characters Example (HP Basic): OUTPUT 712;"OCP?" ENTER 712;A$ DISP A$ Display: OCP OFF Comment The setting status of the OCP function is indicated by the yellow “OCP ON” LED at the front panel. Deactivation of the power output initiated by the OCP function is indicated by the red “OCP” LED at the front panel, and bit 3 is simultaneously set in event register A (OCPA, overcurrent protection activated). After OCP shutdown has occurred, the output is reactivated with OUTPUT ON.
ENTER 712;A$ DISP A$ Display: OVSET +035.
The following settings are recommended, depending upon how the device is used: – POWER_ON RST for use in computer controlled systems – POWER_ON RCL for applications which should continue in an unchanged fashion after mains failures – POWER_ON SBY for common laboratory use REPETITION, REPETITION? – Number of Repetitions for SEQUENCE Function Functions The REPETITION parameter defines how often a sequence will be repeated, from the start to the stop address.
Assume that the event registers had an initial value of “0”. After receiving an incorrect command, the device sets either bit 5 (command error CME) or bit 4 (execution error EXE) in the event standard register ESR (see Figure 6.5). Accordingly, bits 4 and 5 must also be set in the respective ESE enable register, so that the ESR group message can be forwarded to the status byte register (STB).
c) OUTPUT 713; "STORE? 11,13" ENTER 713; A$ DISP A$ STORE 011,+015.000,+003.000,09.70, NC; STORE 012,+010.000,+004.000,01.50, NC; STORE 013,+020.000,+007.000,02.30, NC Comment As opposed to *SAV, the STORE command allows for significantly faster and more direct programming of the required memory locations for a sequence. The txt parameter is optional from this point on. If the txt parameter is omitted, the comma between the last numeric parameter and the txt parameter is omitted as well.
T_MODE, T_MODE? – Trigger Input Function Selection Functions The T_MODE parameter assigns the floating trigger input with optocoupler (at the analog interface) to a selected device function.
Syntax ULIM, ULIM? – Voltage Setting Limit Value UMAX? Functions ULIM defines the upper setting limit (soft-limit) for voltage setpoint value USET. This limit can be used to assure that output voltage is not inadvertently set above a specified value. Syntax ULIM value Parameter Value Parameter type: real number Device Type Setting Range Step Size Nom. Voltage [V] Min. [V] Max. a) [V] Remote b) [V] Manual c) [V] 52 0.00 52.00 0.001 0.01/0.1/1.0 80 0.00 80.00 0.001 0.01/0.1/1.
UOUT? – Querying the Momentary Voltage Value Functions The UOUT function is used to measure momentary output voltage. The measured value is acquired over a period of 40 ms in a continuous fashion. Syntax UOUT? Measuring Range Device Type Measuring Range Resolution Nom. Voltage [V] Min. a) [V] Max. b) [V] Response String [mV] 52 –2.666 58.770 3.3 10 80 –4.000 88.160 10 10 Display [mV] a.
6.5 Status and Events Management The device is furnished with special registers which can be queried by the controller for the recognition of programming errors (e.g. receipt of an incorrect command), device status (e.g. voltage regulating mode) or separate events (e.g. output has been deactivated by OCP function).
Significance of Register Contents Register Meaning Name CCR Output is/was in current regulating mode CVR Output is/was in voltage regulating mode CME Unrecognized command, syntax error, standard limit values for numeric parameters exceeded DDTE Define device trigger function error message: – *DDT command string > 80 characters or – *TRG command included in *DDT command string EXE Command-specific parameter limits exceeded, a command or parameter is incompatible with present operating state LIME E
7 Adjusting the SSP KONSTANTER Warning! The housing cover must be removed in order to balance the device and voltage conducting components are thus exposed.
Balancing the Voltage Setpoint Final Value Device settings: OUTPUT ON; USET = Unom; ISET 2.00 40.00 V 30 mV where Unom = 40 V UA = = 52.00 V ± 43 mV where Unom = 52 V = 80.00 V ± 60 mV where Unom = 80 V I monitor 0 Balancing the Voltage Setpoint Zero-Point Device settings: OUTPUT ON; USET 0.10; ISET 2.
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PCB A Uout max Uout 0 Iout max Iout 0 82 GMC-I Messtechnik GmbH
8 Appendix 8.1 Adjustable Functions and Parameters Setting saved with *SAV n: Default setting after RESET *RST: Explanation in chap. on page Setting Command Significance / Effect Addr n Set device address for RS 232 or IEEE 488 (interface configuration) X unchanged p. 38 bAUd txt Set transmission speed (interface configuration) X unchanged p. 39 X unchanged p. 39 txt: dbit txt 50; 75; 150; ... ; 4800; 9600; 19.
Setting saved with *SAV n: Function-Specific Commands and Device Settings Setting Command Significance / Effect trG txt Function selection for the trigger input at the analog interface T_MODE txt txt: TSET v OFF (input disabled) OUT (input deactivates or activates the output (OUTPUT OFF / ON)) RCL (input triggers step-by-step memory recall) SEQ (input starts or stops sequential memory recall (SEQUENCE GO / STOP)) LLO (input enables or disables front panel controls (LOCAL LOCKED)) MIN (in
8.2 Queriable Functions and Parameters Front panel 1) RS 232C IEEE 488 Read out via interface I Max. measured current value from Min-Max memory [A] Min. measured current value from Min-Max memory [A] Measured Value Query Momentary measured current value [A] CV/CC/Pmax LED MODE? Momentary output operating mode (control mode) 13 X X IMIN -000. 010 13 X X IOUT +031. 510 13 CV = constant voltage, CC = constant current p. 66 p. 28 p. 66 p. 24 X2) p. 67 p. 16 X X MODE 8 X X POUT +0662 .
Front panel 1) RS 232C IEEE 488 Read out via interface *DDT? *IDN? Explanation Resp. in string chap. 10 characters 10 characters 10 characters length on page DDT function memory content (response string for empty memory : “ ” (1 blank space)) X X US 10.5;IS Device ID X X GOSSEN-MET 0P,XXXXXXX (manufacturer, type designation, serial no., hardware and software revision) *LRN? Response string for remote operation (example): Complete settings X 12;OUT ON ;IOUT? RAWATT,SSP 62N052RU05 1 ...
8.3 Query Command for Status and Events Management RS 232C IEEE 488 Read out via interface CRA? Condition register A query D7: SEQB Response string for remote operation (example): ExplaResp. nation in string chapter length on page X X 002 3 p. 64 X X 032 3 p.
8.
Power On & Pon rSt *RST Mains Power Off Mains Power On & Pon rcl / SbY Default Device Setting GMC-I Messtechnik GmbH e.g. USET? T_MODE REPETITION STOP START TDEF MINMAX DELAY OCP OVSET (OVP) ILIM ULIM OUTPUT TSET ISET USET Active Device setting e.g. USET v *SAV n *RCL n #1 n = 1 ... 10 SETUP Memory *RCL n or SEq Go *SAV n #10 Setpoint Specification STORE n n = 11 ...
8.6 System Messages Error messages may appear at the digital display immediately after the device is switched on, or after triggering certain functions manually or via remote control . Code Meaning / Cause Remedy Err 1 ROM checksum error . ROM memory test failed. The device must be tested at a service center and repaired if necessary. Err 2 RAM write/read error. RAM memory test failed. The device must be tested at a service center and repaired if necessary. Err 3 Write/read error.
8.7 Index C Control mode query LED display . . . . . . . . . . . . . . . . . 17 PC query . . . . . . . . . . . . . . . . . . . 68 D Device settings Current settings Query from PC . . . . . . . . . . . 61 Save From PC . . . . . . . . . . . . 63 Manual . . . . . . . . . . . . . 41 From setup and sequence memory Activate From PC . . . . . . . . . . . . 62 Manual . . . . . . . . . . . . . 45 Reset From PC . . . . . . . . . . . . . . . 62 Manual . . . . . . . . . . . . . . . . .
9 Order Information Type Description 62 N 52 RU 25 P SSP-KONSTANTER 500-52 Article Number K344A 62 N 52 RU 50 P SSP-KONSTANTER 1000-52 K345A 64 N 52 RU 100 P SSP-KONSTANTER 2000-52 K352A 64 N 52 RU 150 P SSP-KONSTANTER 3000-52 K362A 62 N 80 RU 12,5 P SSP-KONSTANTER 500-80 K341A 62 N 80 RU 25 P SSP-KONSTANTER 1000-80 K343A 64 N 80 RU 50 P SSP-KONSTANTER 2000-80 K351A 64 N 80 RU 75 P SSP-KONSTANTER 3000-80 K361A IEEE 488/ RS 232 interface Option for SSP 62N/64N-BZ3 K382A RS 232 in
