Operating Instructions SLP-KONSTANTER 32N Series SLP 120 /SLP 240 / SLP 320 Analog Controlled Laboratory Power Supplies 13025 8/4.
GMC-I Gossen-Metrawatt GmbH
Contents Page Receiving Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Warnings and Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Important Warnings . . . . . . . . . . . . . . . . . . . . . .
Receiving Inspection Important Warnings Immediately upon receipt, unpack the KONSTANTER and all included accessories, and inspect for completeness and possible damage. WARNING I – Protective Ground The KONSTANTER may only be operated with a connected protective conductor. Any interruption of the protective conductor, either inside or outside of the KONSTANTER or disconnection of the protective conductor terminal, may render the KONSTANTER hazardous. Intentional interruption is prohibited.
1 Technical Description 1.1 Range of Applications and Features The SLP-KONSTANTER is a single channel laboratory power supply for universal use in R&D, production, training and service. The KONSTANTER maintains either constant current or constant voltage and is capable of delivering 120 W or 240 W of nominal power over a broad range thanks to the auto-ranging output. Precise manual settings for voltage and current are accomplished with the help of ten-turn potentiometers.
1.4 Technical Data 1.4.1 General Data Power Supply Connection Input: Output: Line Voltage Power Consumption In-Rush Current Mains Fuse Output Connection Output 10 A IEC plug 10 A IEC socket, no switch, no fuse 230 V~, +10 / –15%, 47 … 63 Hz see 1.4.2 max. 50 AS 1 x T 4 A / 250 V (6.3 x 32 mm, UL) internal: 1 x T 5 H / 250 V (5 x 20 mm) front panel, 2 ea.
1.4.2 Electrical Data Electrical Data, Series 120 W If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C, nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes. Description (abbreviated designation) SLP 120-20 SLP 120-40 SLP 120-80 Type 32 N 20 R 10 32 N 40 R 6 32 N 80 R 3 Voltage setting range 0 ... 20 V 0 ... 40 V 0 ... 80 V Current setting range 0 ... 10 A 0 ... 6 A 0 ...
Electrical Data, Series 240 W If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C, nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes. Description (abbreviated designation) SLP 240-20 SLP 240-40 SLP 240-80 Type 32 N 20 R 20 32 N 40 R 12 32 N 80 R 6 0 ... 80 V Nominal Output Data Voltage setting range 0 ... 20 V 0 ... 40 V Current setting range 0 ... 20 A 0 ... 12 A 0 ...
Electrical Data, Series 320 W If not otherwise specified, all entries are maximum values and are valid for an operating temperature range of 0 to 50 °C, nominal power range and a line voltage range of 230 V ± 10% after a warm-up period of 30 minutes. Description (abbreviated designation) SLP 320-32 Type 32 N 32 R 18 Nominal Output Data Voltage setting range 0 ... 32 V Current setting range 0 ... 18 A Continuous power where Tu ≤ 40 °C max. 320 W Intermittent power where t < 90 s / Tu ≤ 25 °C max.
1.4.3 Mechanical Data Mechanical Design Dimensions (W x H x D) For 19" rack Weight Benchtop instrument, suitable for rack mounting See also dimensional drawing 221.5 x 102 x 397.5 mm ½19" x 2 standard height units x 400 mm approx. 2.8 kg Dimensional Drawing 221.
2 Preparation for Operation and Initial Start-Up 2.1 Connection to the Mains Observe WARNING I! CAUTON! Before switching the KONSTANTER on, make sure that your local mains voltage corresponds with the operating voltage specified on the instrument’s rear panel. + Voltage limiting remains uninfluenced by output current as well during constant current operation. + The voltage value determined by the measuring function corresponds to voltage acquired by the sensing leads.
➂ Replace the filler strips with the 19" limit stops at the right and 2.4 Installation to a 19" Rack The housing included with the KONSTANTERs has been designed for use as a benchtop device, as well as for installation to a 19" rack. Two KONSTANTERs can be installed next to one another, or a single device can be installed along with a blanking plate. Benchtop devices can be quickly converted for installation to a 19" rack.
3 Controls, Displays and Connectors 1 2 3 6 Figure 3.1 [1] 4 5 8 7 Mains Switch CAUTION! Do not switch the device on and off repeatedly at short intervals. Effectiveness of in-rush current limiting may be impaired in such cases, which may cause the mains fuse to blow! [4] 10 ☞ Refer to chapter 4.3 for detailed information. CAUTION! The output terminals are not electrically isolated when the output is deactivated.
[7] 13 Limit Value Adjustment ☞ Refer to chapter 4.1.2 for detailed information. Rotary Knob for Voltage Setpoint Adjustment Output voltage can be set with this rotary knob. Adjustment is accomplished with a ten-turn potentiometer and allows for precise adjustment of the voltage setpoint Uset, selected within the range defined by means of Ulim [7]. Press the key [9] in order to display the setpoint value Uset. ☞ Refer to chapter 4.1.3 for detailed information.
4 Adjusting Output Values 4.1.3 Uset – Voltage Setpoint Value 4.1 Output Voltage Function • Predefined voltage at which the consuming device is to be operated 4.1.1 Uout – Presently Measured Voltage Value • The left-hand digital display [4] indicates the measured value Uout for voltage present at the output terminals. • During sensing mode operation, the displayed value corresponds to voltage acquired from the sensing leads at the consuming device.
4.2 Output Current 4.3 OUTPUT – Switching the Power Output On and Off 4.2.1 Iout – Presently Measured Current Value • The power output is switched on and off with the red detented key [9]
5.1 Connector Assignments SIG1 OUT, SIG2 OUT (output) • Digital status signal outputs with reference to AGND • SIG1 OUT indicates the status of the power output • SIG2 OUT indicates the current control mode • Signal type open collector • Max. switching voltage 30 V DC • Max. switching current 20 mA ☞ Refer to chapter 5.2 for detailed information.
5.2 Status Signal Outputs 5.3 Trigger Input Function • The KONSTANTER includes two digital open collector outputs with reference to AGND for the generation of status signals. • SIG1 OUT – indicates activation status of the power output OUTPUT ON = passive high (= OFF) OUTPUT OFF = active low (= ON) – If this output is connected to the trigger input of a second KONSTANTER, the power outputs of both devices can be activated and deactivated simultaneously (see also chapters 5.8.2 and 5.9.2).
5.4 Controlling Output Voltage 5.5 Controlling Output Current Function • Output voltage Uout can be controlled via control inputs Uset+ (non-inverting) and Uset− (inverting) with an external control voltage Usu. • The following applies during constant voltage operation: Uout = USET + Usu ⋅ ksu USET: manually selected voltage setpoint value ksu: voltage control coefficient = Uoutnom / 5 V – Max. setting error: ± 0.
5.6 Voltage Monitoring Output 5.7 Current Monitoring Output Function • The U-MON terminal, with reference to AGND, supplies a voltage UMU which is proportional to Uout. • U-MON is used as a control voltage for series master-slave connection (see 5.9.2). • U-MON can also be used for external measuring, monitoring and recording purposes. • The following applies: UMU = Uout ⋅ kMU ⋅ kload = 0 ... 10 V kMU = 10 V / Uoutnom, U monitor coefficient Ri (U-MONITOR) = 9.
5.8 Parallel Operation The outputs of any number of KONSTANTERs can be parallel connected if output current from a single KONSTANTER is insufficient for your application. CAUTION If outputs with different nominal voltage values are parallel connected, all of the outputs must be limited to the lowest nominal voltage value within the system. This setting is accomplished with the Ulim parameter. • As of this point in time, the corresponding KONSTANTER supplies a portion of the load current.
5.8.2 Parallel Master-Slave Operation Function Parallel master-slave connection provides for significant advantages as opposed to direct parallel connection: • Equally suitable for voltage and current regulation • Output parameters (output voltage, cumulative current limiting, output ON/OFF) are fully controlled by the master. • All interconnected KONSTANTERs are equally loaded. Wiring • Define one KONSTANTER as the master. • Connect master and slave devices as shown in figure 5.8.2.
5.9 Series Operation The outputs of several devices can be connected in series if output voltage from a single device is insufficient, or if a ± voltage needs to be generated. WARNING! Maximal allowable cumulative output voltage for series connection is 120 V (or 240 V with grounded neutral). 5.9.1 Direct Series Operation CAUTION! When outputs with different nominal values are series connected, the highest selected current flows at all outputs in the event of short-circuit.
5.9.2 Series Master-Slave Operation Function Series master-slave connection provides for significant advantages as opposed to direct series connection: • Equally suitable for voltage and current regulation • Output parameters (cumulative output voltage, current limiting, output ON/OFF) are fully controlled by the master. • All interconnected KONSTANTERs are equally loaded. Wiring • Define one device as the master. • Connect master and slave devices as shown in figure 5.9.2.
5.10 Varying Internal Output Resistance Function • Internal resistance at the output is equal to practically 0 Ω in the voltage regulating mode. • Internal resistance can be increased at the output for some applications, e.g. for the simulation of long power leads or weak automotive batteries. The selected (open-circuit) output voltage drops proportionately as load increases (see figure 5.10 a). Connection • Wire the analog interface in accordance with figure 5.10 c.
6 Accessories 6 Product Support Mounting If required please contact: Description Note Article No. 19" adapter 1 x 32 N Required for installing one type 32 N ... device to a 19" rack Wight: 214 g (packed in plastic bag) K990A 19" adapter 2 x 32 N Required for installing two type 32 N ... devices to a 19" rack Wight: 50 g (packed in plastic bag) K990B Mains jumper cable, 0.4 m long The cable includes a 10 A inlet connector K991A and a 10 A socket for non-heating apparatus.
GMC-I Gossen-Metrawatt GmbH 27
Edited in Germany • Subject to change without notice • A pdf version can be found on the internet GMC-I Gossen-Metrawatt GmbH Thomas-Mann-Str. 16-20 90471 Nürnberg • Germany Phone +49 911 8602-111 Fax +49 911 8602-777 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.
