Gossen MetraWatt KONSTANTER SPL Series Operating Instructions Manual
Programmable dc electronic load
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Also See for KONSTANTER SPL Series:
- Programming manual (16 pages) ,
- Supplement to operating instructions (2 pages)
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Summary of Contents for Gossen MetraWatt KONSTANTER SPL Series
- Page 1 Operating Instructions KONSTANTER SPL Series 3-349-702-03 Programmable DC Electronic Load 3/12.20...
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Page 2: Table Of Contents
Installation ..............30 Initial Check ................30 Repair and Replacement Parts Service ......59 Environment/Installation Location ..........30 Power-On/ Self-Test ..............30 Product Support ............. 59 Connections on the Rear Panel .............31 Connections on the Front Panel ............32 Wiring ..................32 Gossen Metrawatt GmbH... -
Page 3: Safety Instructions
Connect the 3 conductor cable with plug to the mains outlet. The device must be connected to the protective earth con- ductor. Press the switch on the front panel in order to turn the device on. The device is now ready for operation. Gossen Metrawatt GmbH... -
Page 4: General Introduction
General Introduction SPL Series programmable electronic load, a new product generation by GOSSEN METRAWATT, is designed for high performance. It provides you with powerful test functions and user-friendly HMI, RS232, USB, GPIB interfaces to support SCPI and Labview. Elec- tronic loads of the SPL series are widely used in scientific research and production fields such as aerospace, shipbuilding, automotive electronics, solar cell, and fuel cell. -
Page 5: Front Panel
There are three groups of keypads on the front panel: the Function Keys, the Entry Keys, which composite with secondary functions, and the Direction Keys. The secondary functions of the Entry Keys are printed in blue. To use the secondary function, please press key first, then press the relevant key. Gossen Metrawatt GmbH... -
Page 6: Displays
Displays REM Indicates that the electronic load is in remote status. Indicates that a remote programming error has occurred. Gossen Metrawatt GmbH... -
Page 7: Menus
Constant resistance medium range Ω RES : 20.000 Immediate resistance level MODE : CRH Constant resistance high range Ω RES : 20.000 Immediate resistance level MODE : CPV Constant power-voltage source mode POWR : 0.000W Immediate power level Gossen Metrawatt GmbH... -
Page 8: Transient Operation Menu
Press ▲ and ▼ keys in list operation menu to select Data: <New/Edit>, and select New or Edit with the knob or ◄ and ► keys. Then press key to Enter into sequence data editing status, which is shown as below: Function Description 10000.00000s Sequence (list) number Time 5.000A Mode Setting value Gossen Metrawatt GmbH... -
Page 9: Display Messages
The first line shows measured voltage and current levels. The second line shows resistance level, CR mode (CRL indicates constant resistance low range; CRM indicates constant resistance medium range; and CRH indicates constant resistance high range) and input status of the load: (ON, OFF). Gossen Metrawatt GmbH... - Page 10 The second line shows setpoint, sequence operation mode (“L” indicates list test); and input status of the load: (ON, OFF). ➆ Battery Discharge Operation: The first line shows measured voltage and current levels. The second line shows the consumed battery power (in Ah) and discharge time. Gossen Metrawatt GmbH...
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Page 11: Remote Programming
The commands are sent to electronic load via remote interface (RS232, GPIB, USB), and will be executed after decoding by the pro- cessor. If there is any error occurs to the command, the processor can detect the wrong command and error type, and it can maintain the status register as well. Gossen Metrawatt GmbH... -
Page 12: Functions And Features
5 milliseconds automatically. The setting values for electronic load become effective immediately when the load is turned on. If the input set value exceeds the allowed range, it will be automatically limited at maximum value or minimum value. Gossen Metrawatt GmbH... -
Page 13: Constant Current Mode (Cc)
If this level is exceeded beyond a programmable time delay (0.001 ... 60 s), an acoustic alarm signal is generated and the load is switched off. The maximum current level can be programmed in all operating modes. Gossen Metrawatt GmbH... -
Page 14: Constant Voltage Mode (Cv)
The load will switch between the transient high voltage level (LevelH) and transient low voltage level (LevelL) when the transient opera- tion is enabled. The transient voltage level can be set in transient operation menu from the front panel, or via remote command (VOLTage:HLEVel <NRf+>, VOLTage:LLEVel <NRf+>). Gossen Metrawatt GmbH... -
Page 15: Constant Resistance Mode (Cr)
The load will switch between the transient high resistance level (LevelH) and transient low resistance level (LevelL) when the transient operation is enabled. The transient resistance level can be set in transient operation menu from the front panel, or via remote command (RESistance:HIGH<NRf+>, RESistance:LOW <NRf+>). Gossen Metrawatt GmbH... -
Page 16: Constant Power Mode (Cp)
(POW:TRIG<NRf+>) command is received. The trigger operation will be described in later chapters. The status register of the electronic load can keep track of pending triggers and other operating conditions, which will be described in detail in the “SPL SCPI Programming Guide”. Gossen Metrawatt GmbH... -
Page 17: Transient Operation
Set the following parameters in transient operation menu: LevelL 5.000 A LevelH 10.000 A TimeL 0.50 ms TimeH 0.50 ms TimeR 0.20 ms TimeF 0.20 ms Mode Cont Then press key to turn on the input; Gossen Metrawatt GmbH... -
Page 18: Pulsed Transient Operation
Example: assume that the CCH range is active, and the input is in OFF status, then the transient parameters should be set as follows: Press key, to enter into transient operation. Press key, to open transient operation menu. Gossen Metrawatt GmbH... - Page 19 (10A) after 200 μs duration of rising edge, and remains at 10A for 500 μs. Then after 200 μs duration of falling edge, the current returns to the transient low level (5A). Figure 2.7 Pulsed transient operation Gossen Metrawatt GmbH...
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Page 20: Toggled Transient Mode
(10A) after 100 μs duration of rising edge. When the second trig- ger is received, the load current will reach and remain at the low level (5A) after 200 μs duration of falling edge. Each trigger leads to one toggle operation. Gossen Metrawatt GmbH... -
Page 21: List Operation
Figure 2.9 is a list running diagram for 5 steps. See section 5 for detailed information about programming lists from the front panel. Figure 2.9 List Operation Attention! In list operation, the Von point and current limit level should be taken into consideration, which may cause the shut down of the input, thus interrupting the list operation. Gossen Metrawatt GmbH... -
Page 22: Battery Discharge Operation
The other setting values remain unchanged for short circuit operation. Attention! In short circuit operation, the Von point and current limit level should be taken into consideration, which may cause the shut down of the input, thus interrupt the short circuit operation. Gossen Metrawatt GmbH... -
Page 23: Triggered Operation
The HOLD mode: Use TRIGger:IMMediate command as the trigger source. At this time, all other triggering methods including *TRG become invalid. Note The TRIGger:IMMediate command can be used in all three triggering modes. The triggering modes can be selected via the remote command only (TRIGger:SOURce BUS; TRIGger:SOURce EXTernal; TRIGger:SOURce HOLD). Gossen Metrawatt GmbH... -
Page 24: Input Control
The Von Latch can be set in main menu, or via the remote command (INPut:LATCh ON | OFF). Figure 2.11 Von Latch is enabled Figure 2.12 Von Latch is disabled Note If the load is unable to operate normally, please check the setting of Von Point. Gossen Metrawatt GmbH... -
Page 25: Current Limit In Cv Mode
Figure 2.15: I (A) t (μs) Figure 2.15 Current Fall Rate Note The Current Fall Rate can be effective only in CCH and CCL mode, and the actual rise rate is one tenth of the setpoint in CCL. Gossen Metrawatt GmbH... -
Page 26: Measurement Function
Query errors Remote programming errors can be checked by pressing key after pressing key on the front panel. The remote command (SYSTem:ERRor?) can read back the error codes and error messages when it is in remote control. Gossen Metrawatt GmbH... -
Page 27: Status Report
When reverse voltage is applied, the reverse voltage protection will be enabled; the input will be turned off with RV displayed, in the meantime, the RV and VF status register bits are set, and will remain set until they are reset and reverse voltage is removed. Gossen Metrawatt GmbH... -
Page 28: Auxiliary Functions
Connect the output of a power supply to the load’s input with correct polarity to execute CCH 5 A and CV 5 V operations. If the load works normally, it will draw 5 A or set input voltage to 5 V within the allowed tolerance. Gossen Metrawatt GmbH... -
Page 29: Connections On The Rear Panel
USB and GPIB interfaces occupy the same expansion slot on the rear panel, so only one type interface can be chosen to install at the same time, meanwhile, only one type interface can be used by the load to communicate with external devices. Gossen Metrawatt GmbH... -
Page 30: Connections On The Front Panel
Figure 3.3 Measuring terminals Parallel Connections Figure 3.4 illustrates how two or more loads can be paralleled in CC /CR mode when high power or large current is needed. Power supply to be tested Figure 3.4 Parallel Connection Gossen Metrawatt GmbH... -
Page 31: Local Operation
Press the Enter key to confirm and exit mode selection and parameter setting menu. Press the key to turn on the load’s input. Gossen Metrawatt GmbH... -
Page 32: Cc Mode
For the above operating procedures, the corresponding SCPI commands should be: MODE Sets the mode CURR Sets the current value INPUT Turns on the load Note In CCH status or CCL status, CCH /CCL will be shown respectively in the lower right corner of the display. Gossen Metrawatt GmbH... -
Page 33: Cv Mode
For the above operating procedures, the corresponding SCPI commands should be: MODE Sets the mode VOLT Sets the voltage value INPUT Turns on the load Note CV will be shown in the lower right corner of the display when the load is in CV mode. Gossen Metrawatt GmbH... -
Page 34: Cr Mode
Sets the mode Sets the resistance value INPUT Turns on the load Note CRH /CRM/CRL will be shown respectively in the lower right corner of the display when the load is in CRH status, CRM status or CCL status. Gossen Metrawatt GmbH... -
Page 35: Cp Mode
Sets the mode POW 200 Sets the power value INPUT ON Turns on the load Note CPV /CPC will be shown respectively in the lower right corner of the display when the load is in CPV or CPC mode Gossen Metrawatt GmbH... -
Page 36: Short Circuit Operation
0.000A Press the key to turn off the load. 0.000A CCH OFF For the above operating procedures, the corresponding SCPI commands should be: INPUT:SHORT Sets the load to exit the short circuit INPUT Turns on the load Gossen Metrawatt GmbH... -
Page 37: Transient Operation
0.000V 0.000A keys or knob to set Mode value to Cont, and press key to confirm. 1.000V CV OFF 0.000V 0.000A 1.000V CV ON Press the key to turn on the load. 0.000V 0.000A 5.000V CV ON Gossen Metrawatt GmbH... -
Page 38: Pulsed Transient Operation
0.000V 0.000A Press the key to turn on the load. 1.000A CCH ON 0.000V 0.000A One trigger occurs when pressing key or the signal at the trigger input terminal (TRIG IN) is low level. 5.000A CCH ON Gossen Metrawatt GmbH... -
Page 39: Toggled Transient Operation
Sets a value to high level TRAN:RTIME 10us Sets a value to time for rising edge TRAN:FTIME 10us Sets a value to time for falling edge TRAN:MODE TOGG Selects toggled operation INPUT Turns on the load Trig One trigger occurs Gossen Metrawatt GmbH... -
Page 40: Sequence Operation (List)
15 Use the ▼ key to select “Chain”; use Entry keys (the “Chain” is OFF when the Entry key exceeds 6) or the knob to input the set value. Press the Enter key to confirm. 16 Press the key to exit sequence operation menu. 17 Press the key + key to activate sequence operation. 18 Press the key + key to stop sequence operation. Gossen Metrawatt GmbH... -
Page 41: Sequence (List) Editing
Sequence memo is “Test Power” LIST:DATA CCL,1A,1S LIST:DATA CCH,2A,1S LIST:DATA CV,1V,1S LIST:DATA CRL,1Ω,1S LIST:DATA CRH,200Ω,1S The above 5 commands are sequence steps LIST:COUNT Cycle times for this sequence LIST:CHAIN Disables the chained sequence LIST Activates sequence operation LIST Stops sequence operation Gossen Metrawatt GmbH... -
Page 42: Modifying, Adding, Inserting, Deleting Sequences
Step 17 Chain: 0 Press the Enter key to confirm and save the Chain value in EEPROM assigned by the sequence number. 0.000V 0.000A Step 18 Press the key to exit sequence operation menu. 0.000A CCH OFF Gossen Metrawatt GmbH... -
Page 43: Starting/Stopping The List
Press the key to turn off the load, and stop battery discharge operation. Press the key to clear the discharge time and discharge capacity of the battery. Press the key + key to exit the battery discharge operation. Gossen Metrawatt GmbH... -
Page 44: Saving And Recalling
CCL ON For the above operating procedures, the corresponding SCPI commands should be: MODE Sets the load to CCH status CURR Sets the current value to 2A *SAV Saves the present settings in Location 0 in EEPROM Gossen Metrawatt GmbH... -
Page 45: Clearing Protection Settings
For the above operating procedures, the corresponding SCPI commands should be: SYST:ERR? Queries the error code and error messages Note An overview of the individual error messages and the associated explanations are provided in the „SPL SCPI Programming Guide“ in Chapter 3. Gossen Metrawatt GmbH... -
Page 46: Triggered Operation
Yes *No Load Default : Use the knob or ◄ key to select the parameter “Yes”. Press the Enter key to confirm. *Yes No Press the key to exit the main menu. Gossen Metrawatt GmbH... -
Page 47: Short Circuit Operation
0.000A CCH ON For the above steps, the corresponding SCPI commands should be: INP:VOLT:ON:LATCH OFF Disables the Von Latch INP:VOLT:ON Sets the Von voltage to 1 V INPUT Turns on the load Gossen Metrawatt GmbH... -
Page 48: Current Limit In Cv Mode
Sets the current value to 2 A CURR:RISE:RATE 0.002 Sets the current rise rate in CC mode to 0.002 A/μs CURR:FALL:RATE 0.005 Sets the current fall rate in CC mode to 0.005 A/μs INPUT Turns on the load INPUT Turns off the load Gossen Metrawatt GmbH... -
Page 49: Trigger Function Selection
Use the ▼ key to select the menu item “GPIB Address”; use Entry keys or the knob together with ◄ ► keys to select the GPIB-Adresse : Step 3 parameter “18”. Press the Enter key to confirm. 0.000V 0.000A Step 4 Press the key to exit the main menu. 0.000A CCH OFF Gossen Metrawatt GmbH... -
Page 50: Remote Programming Operation
5.6.2 Transient Levels The transient CC, CV, or CR level must be set to a higher level than the respective low level, or the transient operation will be disabled. Gossen Metrawatt GmbH... -
Page 51: Programmable Current Protection
8 "TRAN:FTIM 20us" Sets the time for transient falling edge to 20 μs 9 "TRAN:MODE CONT " Selects the continuous transient operation 10 "TRAN ON" Activates the transient operation 11 "INPUT ON" Turns on the load‘ s input Gossen Metrawatt GmbH... -
Page 52: Pulsed Transient Operation Example
9 "TRAN:MODE PULSE " Selects the pulsed transient operation 10 "TRAN ON" Activates the transient operation 11 "INPUT ON" Turns on the load` s input 12 "*TRG" *TRG command generates a 1 millisecond high-level pulse at the load‘s input Gossen Metrawatt GmbH... -
Page 53: Specifications
0 ... 80 V 0 ... 200 V 0 ... 200 V Resolution 1 mV 1 mV 1 mV 1 mV Accuracy 0.1% + 8 mV 0.1% + 8 mV 0.1 % + 50 mV 0.1 % + 50 mV Gossen Metrawatt GmbH... - Page 54 44 A 22 A 33 A Voltage 84 V 84 V 210 V 210 V Protection Features OV, OC, OP, OT, RV OV, OC, OP, OT, RV OV, OC, OP, OT, RV OV, OC, OP, OT, RV Gossen Metrawatt GmbH...
- Page 55 The momentary transition time is defined as the time required for the input to change from 10% to 90% or from 90% to 10% of the programmed excursion. Transient frequency depends on the time for high/low level and rising/falling edge. Full remote control via RS232 with optional GPIB and USB. Dimensions Gossen Metrawatt GmbH...
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Page 56: Repair And Replacement Parts Service
Beuthener Straße 41 90471 Nürnberg • Germany Phone +49 911 817718-0 +49 911 817718-253 E-Mail service@gossenmetrawatt.com www.gmci-service.com Product Support When you need service, please contact: Gossen Metrawatt GmbH Hotline Produktsupport Phone +49 911 8602-0 +49 911 8602-709 E-Mail support@gossenmetrawatt.com ©Gossen Metrawatt GmbH Edited in Germany •...
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