This section provides an overview of the R&S NGA100 user documentation.
You find the documents on the R&S NGA100 product page at:
www.rohde-schwarz.com/manual/nga100
Getting Started
Introduces the R&S NGA100 power supply series and describes how to set up and
start working with the instrument. The printed document is delivered with the instrument.
User manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control commands
with programming examples, and information on maintenance and instrument interfaces. Includes the contents of the getting started manual.
The online version of the user manual provides the complete contents for immediate
display on the internet.
Basic safety instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
Instrument security procedures manual
Deals with security issues when working with the R&S NGA100 in secure areas.
1.2Data Sheet
The datasheet contains the technical specifications of the R&S NGA100 power supply
series. It also lists all options with their order numbers and accessories.
See www.rohde-schwarz.com/brochure-datasheet/nga100
1.3Calibration Certificate
The document is available on https://gloris.rohde-schwarz.com/calcert. You need the
device ID of your instrument, which you can find on a label on the rear panel.
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R&S®NGA100
1.4Release Notes, Open Source Acknowledgment
Documentation Overview
Release Notes, Open Source Acknowledgment
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation. The open source acknowledgment document provides verbatim license texts of the used open source software. It
can also be downloaded from the instrument.
See www.rohde-schwarz.com/firmware/nga100.
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R&S®NGA100
2Welcome to R&S NGA100
Welcome to R&S NGA100
The one-channel or two-channel power supply series are based on a classical transformer concept with high efficiency electronic pre-regulators and secondary linear regulators. This concept allows the instrument to achieve the high output power within a
minimum space, high efficiency and lowest residual ripple.
The R&S NGA100 power supply series feature galvanically isolated, floating overload
and short-circuit proof outputs with adjustable power ratings. The outputs can be connected in series or in parallel, thus making high currents and voltages available.
Multi-purpose protection functions are available for each channel which you can set
separately, such as overcurrent protection (FUSE), overvoltage protection (OVP), overpower protection (OPP) and overtemperature protection (OTP). If such a limit is
reached, the affected output channel is automatically turned off and an indicator message (FUSE, OVP, OPP or OTP) is displayed. The overcurrent protection can be linked
to other channel (FuseLink function). In this case, all linked channels are turned off
when the set channel reaches its limit.
The EasyArb function allows channel 1 (Ch 1) to have freely definable voltage and current sequences with a timeframe as short as 10 ms. It allows you to vary the voltage or
current limit during a test sequence, for example to simulate different charging conditions of a battery. With EasyRamp function, the R&S NGA100 provides the operating
condition to simulate the continuous rise of the supply voltage within a defined timeframe of 10 ms to 10 s.
Four data lines of the digital I/O interface are mutually independent and can be used as
trigger input or trigger output separately. Various trigger conditions (e.g. fuse tripped,
voltage, current, indicator messages) can be used to turn off, on or invert the output
state when the trigger condition is met.
All R&S NGA100 power supply series are equipped with a color LCD display (320 x
240 pixels resolution). The R&S NGA100 comes with a USB interface, LAN and
optional wireless LAN (WLAN) interface.
For models with WLAN, network connection can also be established wirelessly.
This user manual contains a description of the functionalities that the instrument provides. The latest version is available for download at the product homepage (http://
www.rohde-schwarz.com/product/nga100).
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R&S®NGA100
3Important Notes
3.1Symbols
Important Notes
Ambient Conditions
Caution, general danger zone
Ground
PE terminal
ON (supply voltage)
OFF (supply voltage)
Ground terminal
3.2Ambient Conditions
The allowed operating temperature ranges from +5 °C to +40 °C (pollution category 2).
The maximum relative humidity (without condensation) is at 80 %.
During storage and transport, the temperature must be between -20 °C and +70 °C. In
case of condensation during transportation or storage, the instrument requires approximately two hours to dry and reach the appropriate temperature prior to operation. The
instrument is designed for use in a clean and dry indoor environment. Do not operate
with high dust and humidity levels, if danger of explosion exists or with aggressive
chemical agents.
Any operating position may be used; however adequate air circulation must be maintained. For continuous operation, a horizontal or inclined position (integrated stand) is
preferable.
Specifications with tolerance data apply after a warm-up period of at least 30 minutes
at a temperature of 23 °C (tolerance -3 °C / + 7 °C).
The heat produced inside the instrument is guided to the exterior via temperature-controlled fan. Each channel has multiple temperature sensors which check the heat generation in the instrument and control the fan speed.
It is necessary to ensure that there is sufficient space around the instrument sides for
heat exchange. If the temperature inside the instrument increases more than the
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R&S®NGA100
3.3Measurement Categories
Important Notes
Mains Voltage
allowed limit, overtemperature protection is triggered and the affected outputs are
switched off automatically.
Air circulation
Do not obstruct the ventilation holes!
This instrument is designed for supplying power-on circuits that are only indirectly connected to the low voltage mains or not connected at all. The instrument is not intended
for measurements within the measurement categories II, III or IV; the maximum potential against earth generated by the user must not exceed 250 V peak in this application.
The following information refers solely to user safety. Other aspects, such as the maximum voltage, are described in the technical data and must also be observed.
The measurement categories refer to transients that are superimposed on the mains
voltage. Transients are short, very fast (steep) current and voltage variations which
may occur periodically and non-periodically. The level of potential transients increases
as the distance to the source of the low voltage installation decreases.
●
Measurement CAT IV: Measurements at the source of the low voltage installations
(e.g. meters)
●
Measurement CAT III: Measurements in building installations (e.g. power distribution installations, power switches, firmly installed sockets, firmly installed engines
etc.)
●
Measurement CAT II: Measurements on circuits electronically directly connected to
the mains (e.g. household appliances, power tools, etc.)
●
0 (instruments without measured measurement category): Other circuits that are
not connected directly to the mains
3.4Mains Voltage
The instrument uses 50 Hz / 60 Hz mains voltages ranging from 100 VAC, 115 VAC or
230 VAC (tolerance ± 10 %). Mains voltage must be set correctly by moving the selector according to the voltage selector located at the bottom panel. The input line fuse is
accessible externally. Power socket and fuse holder form a single unit.
You need to first disconnect the power cord from the connector before you can safely
replace the fuse (as long as the fuse holder is undamaged). Next, the fuse holder must
be pried out using a screwdriver. The starting point is a slot next to the contacts. The
fuse can then be forced out of its mounting and must be replaced with an identical fuse
(see information about the fuse type on the rear panel). The fuse holder is inserted
against the spring pressure until it locks into place. The use of mended fuses or short
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R&S®NGA100
3.5Limits
Important Notes
Limits
circuiting the fuse holder is prohibited. Resulting damages are not covered by the warranty.
Safe operation
If the instrument is not in use, it must be switched off at the mains switch for safety reasons.
The R&S NGA100 is equipped with a protective overload feature. The protective overload feature prevents damage to the instrument and is intended to protect against a
possible electrical shock. The maximum values for the instrument must not be exceeded. The protection limits are listed on the front panel of the R&S NGA100 to ensure
the safe operation of the instrument.
These protection limits must be adhered to:
SpecificationLimits
Maximum output voltage35 V module: 35.00 VDC
100 V module: 100.00 VDC
Maximum output current35 V module: 6.0
100 V module: 2.0
Maximum voltage against earth250 VDC
Maximum reverse voltage35 V module: 36.00 VDC
100 V module: 102.00 VDC
Maximum inverse voltage0.4 VDC
Maximum permitted current in case of inverse voltage
Power supply100 VAC, 115 VAC or 230 VAC (tolerance ± 10 %)
Frequency50 Hz / 60 Hz
Maximum power output40 W (R&S NGA101, R&S NGA141)
35 V module: 6.00 A
100 V module: 2.00 A
80 W (R&S NGA102, R&S NGA142)
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R&S®NGA100
4Getting Started
4.1Putting into Operation
Getting Started
Putting into Operation
This chapter describes the steps to set up the R&S NGA100 for the first time.
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent electric shock, fire,
personal injury, or damage.
●
Do not open the instrument casing
●
Read and observe the "Basic Safety Instructions" delivered as a printed brochure
with the instrument. Note that the basic safety instructions also contain information
on operating conditions that prevent damage to the instrument
In addition, read and observe the safety instructions in the following sections. Notice
that the data sheet may specify additional operating conditions.
Risk of instrument damage during operation
An unsuitable operating site or test setup can cause damage to the instrument and the
connected devices. Ensure the following operating conditions before you switch on the
instrument:
●
The instrument is dry and shows no sign of condensation
●
The instrument is positioned as described in Chapter 4.1.4.1, "Bench Operation",
on page 17
●
The ambient temperature does not exceed the range specified in the data sheet
●
Voltage levels at the input connectors are all within the specified ranges
●
Voltage outputs are correctly connected and not overloaded
Risk of radio interference
This is a class A product. In a domestic environment, this product may cause radio
interference in which case the user may be required to take adequate measures.
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R&S®NGA100
4.1.1Safety
Getting Started
Putting into Operation
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results.
To suppress the generated EMI:
●
Use suitable shielded cables of high quality, for example, LAN cables
●Unpacking and Checking the Instrument................................................................ 16
●Setting Up the Instrument....................................................................................... 17
Recommendations on secure operation
The R&S NGA100 is designed to operate at local workplaces or in secured networks
(LAN). It should not be accessible from the internet, because of a potential security
risk, e.g. attackers could misuse or damage your device.
Please always install the latest firmware.
It is highly recommended that you work closely with your IT department or system
administrator to ensure compliance with your company policies when connecting devices to your company's network.
This instrument was built in compliance with DIN EN 61010-1 (VDE 0411 part 1),
safety regulations for electrical instruments, control units and Iaboratory equipment. It
has been tested and shipped from the plant in safe condition. It is also in compliance
with the regulations of the European standard EN 61010-1 and the international standard IEC 61010-1.
To maintain this condition and ensure safe operation, you must observe all instructions
and warnings given in this user manual. Casing, chassis and all measuring ports are
connected to a protective earth conductor. The instrument is designed in compliance
with the regulations of protection class I.
For safety reasons, the instrument may only be operated with authorized safety sockets. The power cord must be plugged in before signal circuits may be connected.
Never use the product if the power cable is damaged. Check regularly that the power
cables are in perfect condition. Choose suitable protective measures and installation
types to ensure that the power cord cannot be damaged and that no harm is caused by
tripping hazards or from electric shock, for instance.
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R&S®NGA100
Getting Started
Putting into Operation
Risk of electric shock
It is prohibited to disconnect the earthed protective connection inside or outside of the
instrument!
If it is assumed that a safe operation is no longer possible, the instrument must be shut
down and secured against any unintended operation.
Safe operation can no longer be assumed as follows:
●
Instrument shows visible damage
●
Instrument includes loose parts
●
Instrument no longer functions properly
–After an extended period of storage under unfavorable conditions (e.g. out-
doors or in damp rooms)
–After rough handling during transport (e.g. packaging that does not meet the
minimum requirements by post office, railway or forwarding agency)
Exceeding the low voltage protection
Use insulated wires and not bare wires for the terminal connection.
For the series connection of all output voltages of the 35 V variant, it is possible to
exceed the low voltage protection of 42 V. Please note that in this case any contact
with live components is life-threatening. It is assumed that only qualified and trained
personnel service the power supplies and the connected loads.
Before switching on the product, it must be ensured that the nominal voltage setting on
the product matches the nominal voltage of the AC supply network. If it is necessary to
set a different voltage, the power fuse of the product must be changed accordingly.
4.1.2Intended Operation
The instrument is intended only for use by personnel familiar with the potential risks of
measuring electrical quantities.
For safety reasons, the instrument may only be connected to properly installed safety
socket outlets. Separating the ground is prohibited.
The power plug must be inserted before signal circuits may be connected.
Use only the power cord included in the delivery package. See "Delivery package"
on page 17.
Before each measurement, measuring cables must be inspected for damage and
replaced if necessary. Damaged or worn components can damage the instrument or
cause injury.
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R&S®NGA100
Getting Started
Putting into Operation
The product may be operated only under the operating conditions and in the positions
specified by the manufacturer, without the product's ventilation being obstructed. If the
manufacturer’s specifications are not observed, this can result in electric shock, fire
and/or serious personal injury, and in some cases, death.
Applicable local or national safety regulations and rules for the prevention of accidents
must be observed in all work performed.
The instrument is designed for use in the following sectors: Industrial, residential, business and commercial areas and small businesses.
The instrument is designed for indoor use only. Before each measurement, you need
to verify at a known source if the instrument functions properly.
To disconnect from the mains, the low-heat device socket on the back panel has to be
unplugged.
See Table 4-1 for the general data on the instrument specification. For more informa-
tion, see the instrument product brochure.
Table 4-1: General data on instrument specification
TemperatureOperating temperature range5 °C to + 40 °C
HumidityNon-condensing5 % to 80 %
Display
Rack mount capability
DimensionsW x H x D222 mm x 96 mm x 446 mm
WeightR&S NGA101, R&S NGA1416.6 kg (14.55 lb), 6.9 kg (15.21 lb)
110/115 V ACIEC 60127 T2.5H250V
230 V ACIEC 60127 T5.0H250V
Storage temperature range- 20 °C to + 70 °C
R&S NGA102, R&S NGA1427.0 kg (15.43 lb), 7.3 kg (16.09 lb)
3.5 " (QVGA)
R&S HZN96 rack adapter 2U
(P/N: 3638.7813.02)
(8.74 in x 3.78 in x 17.56 in)
4.1.3Unpacking and Checking the Instrument
Check the equipment for completeness using the delivery note and package contents
list for the various items. Check the instrument for any damage and loose parts. If there
is any damage, immediately contact the carrier who delivered the instrument.
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R&S®NGA100
Getting Started
Putting into Operation
Packing material
Retain the original packing material. If the instrument needs to be transported or shipped at a later date, you can use the material to protect the control elements and connectors.
Risk of damage during transportation and shipment
Insufficient protection against mechanical and electrostatic effects during transportation
and shipment can damage the instrument.
●
Always ensure that sufficient mechanical and electrostatic protections are provided
●
When shipping an instrument, the original packaging should be used. If you do not
have the original packaging, use sufficient padding to prevent the instrument from
moving around inside the box. Pack the instrument in antistatic wrap to protect it
from electrostatic charging
●
Secure the instrument to prevent any movement and other mechanical effects during transportation
Delivery package
The package contents contain the following items:
●
R&S NGA100 power supply preloaded with two 230 V fuses
●
Four power cables
●
Two 115 V fuses (replace the preloaded fuses with these fuses depending on the
mains voltage, see Chapter 4.2.2, "Switching On the Instrument", on page 22 for
more information)
●
One 5-pin plug for digital I/O port connection
●
One 8-pin terminal block plug for output connection
●
One Getting Started manual
●
One document folder containing Basic Safety instructions guide, KC and CE certificate
4.1.4Setting Up the Instrument
The R&S NGA100 is designed for benchtop and rackmount.
4.1.4.1Bench Operation
On a benchtop, the R&S NGA100 can either lie flat or stand on its feet. The feet on the
bottom can be folded out to set the instrument in an inclined position.
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R&S®NGA100
4.1.4.2Rack Mounting
Getting Started
Instrument Tour
Positioning of instrument
The instrument must be positioned in a manner that allows the user to disconnect the
unit from the mains at any time and without restrictions.
The instrument can be installed in a 19" rack using the rack adapter R&S HZN96 (P/N
3638.7813.02). Proceed according to the installation instructions supplied with the rack
adapter.
Ambient temperature
Operate R&S NGA100 power supply in an area where the ambient temperature is
within +5 °C to +40 °C. The R&S NGA100 power supply is fan-cooled and must be
installed with sufficient space along the sides to allow proper air circulation. Ensure
that fan openings are unobstructed and airflow vents are unimpeded.
Operating the instrument with insufficient airflow or outside the allowable ambient temperature can disrupt the operation and even cause damage.
4.2Instrument Tour
This chapter provides an overview of all the controls available in the R&S NGA100
models and steps to switch on the instrument for the first time.
●Overview of Controls...............................................................................................18
●Switching On the Instrument...................................................................................22
4.2.1Overview of Controls
4.2.1.1Front Panel
The front panel of the R&S NGA100 is as shown in Figure 4-1. The function keys and
navigation controls are located at the right side of the display. The various connectors
are located below the display and function keys.
The following power supply models are available:
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R&S®NGA100
Getting Started
Instrument Tour
Table 4-2: Power supply models
ModelsNumber of output channels
NGA101 (0 V - 35 V/6 A), NGA141 (0 V - 100 V/2 A)1 (maximum 40 W)
NGA102 (0 V - 35 V/6 A), NGA142 (0 V - 100 V/2 A)2 (maximum 80 W)
Figure 4-1: Front panel of R&S NGA100 with 2 channels
1 = Display
2 = Function keys
3 = Rotary knob and arrow keys
4 = Output channels (see Table 4-2)
5 = USB connector
6 = Power key
Display (1)
The display is a color LCD screen. Depending on the instrument models, up to two
channels are shown on the screen. The respective measurement settings and functions are displayed in the individual channel section. There is a status bar above the
channel section to indicate the functions used and operation mode of the instrument.
For a detailed description on-screen layout, see section "Screen Layout" in the User
Manual.
Function keys (2)
Function keys are means of input for manual operation of the instrument functions.
When a function key is pressed, all the related keys are also illuminated.
For detailed description on function keys, see section "Function Keys" in the User Manual.
Rotary knob and arrow keys (3)
Rotary knob and arrow keys are means of navigation and adjustment. When pressed
or rotated, they perform tasks like navigation around the screen, adjustment of parameter values or confirmation of entries.
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R&S®NGA100
4.2.1.2Rear Panel
Getting Started
Instrument Tour
For detailed description on rotary knob and arrow keys, see section "Navigation Controls" in the User Manual.
Output channels (4)
Depending on the instrument models, up to two output channels are available for output of power to the connected load. See Table 4-2.
USB connector (5)
USB Type-A connector is provided for connecting a USB flash drive to perform firmware update, data logging and store screen captures.
The USB flash drive file system supports FAT32 only.
Power key (6)
The [Power] key switches the instrument on and off.
Figure 4-2 shows the rear panel of the R&S NGA100 with its connectors.
Figure 4-2: Rear panel of R&S NGA100
7 = AC inlet with fuse holder
8 = Ethernet (LAN) connector
9 = USB connector
10 = Digital I/O connector
11 = Rear panel connector
AC inlet with fuse holder (7)
Main supply cord
Do not use detachable mains supply cord with inadequate rating.
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R&S®NGA100
Getting Started
Instrument Tour
For safety reasons, the instrument can only be operated with authorized safety sockets.
The power cable must be plugged in before signal circuits can be connected. Never
use the product if the power cable is damaged. See Chapter 4.2.2, "Switching On the
Instrument", on page 22 for more information.
Ethernet connector (8)
This connector is used for establishing remote control via SCPI. See section "Ethernet
Setup" in the user manual for more information on the connection setup.
USB connector (9)
The USB connector is a Type-B connector for remote control operation via USB TMC
or USB VCP.
Digital I/O connector (10)
The Digital I/O connector is a 5-pin terminal block for external trigger input or output.
Measurement control can be achieved by means of an external input signal or as an
output signal to trigger other instruments for some measurements.
The Digital Trigger I/O option (NGA-K103) must be installed for this function to be
available in the instrument.
Rear panel connector (11)
Shock Hazard
Do not turn on AC power when connecting wires to the rear panel connector.
Tightened all wires connected to the terminal block.
Output terminals
Either the output terminals at the front panel or the rear panel connector at the back
panel can be used.
Both terminals should not be used at the same time as it can cause the instrument to
malfunction.
The rear panel connector contains both output ("F+", "F-") and sense ("S+", "S-") connections. Connector for "Ch 2" is only available in the NGA102, NGA142 models.
4.2.1.3Bottom Panel
The voltage selector is located at the bottom panel. On your first power-on connection,
you should see a yellow label sticker attached over the AC inlet. Before peeling off the
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R&S®NGA100
Getting Started
Instrument Tour
yellow label sticker, make sure that the correct fuse rating is used for the mains voltage.
Figure 4-3: Bottom panel of R&S NGA100
12 = Voltage selector
13 = Voltage selector label
Voltage selector (12), Voltage selector label (13)
The voltage selector selects the mains voltage between 100 V, 115 V and 230 V. See
Table 4-1 for the fuse rating.
To set the correct fuse rating, use a tool e.g. a flat screwdriver to move the selector
according to the voltage selector label.
●
To select 100 V, slide both voltage selector to the left
●
To select 115 V, slide both voltage selector facing inward
●
To select 230 V, slide both voltage selector to the right
4.2.2Switching On the Instrument
Before switching on the instrument, check that all the instructions in the “Basic Safety
Instruction” brochure and safety measures in previous sections are observed.
Also, check if the value on the voltage selector corresponds to the mains voltage (100
V, 115 V or 230 V).
To change the power fuse / mains voltage setting:
1. Peel off the yellow label sticker on the AC inlet.
2. Pull out the fuse holder which is located directly on top of the socket.
3. Remove the preloaded fuses from the fuse holder.
4. Check the rating on the caps of both fuses that you want to change.
By default, the instrument is preloaded with two 230 V fuses.
For more information, see "Voltage selector (12), Voltage selector label (13)"
on page 22.
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R&S®NGA100
Getting Started
Trying Out the Instrument
5. Once verified, insert the fuses into each groove of the fuse holder.
6. Return the fuse holder to its position in the panel.
To switch on the instrument:
1. Connect the power cable to the AC power connector on the rear panel of the R&S
NGA100.
2. Connect the power cable to the socket outlet.
3. Press [Power] key on the front panel.
The instrument performs a system check, boots the operating system and starts
the R&S NGA100 firmware.
By default, all output channels are turned off when the instrument is switched on to
prevent connected loads from being damaged unintentionally.
During startup, the R&S NGA100 is loaded with the last saved instrument settings
from memory location "M1" and auto saved parameters. See Chapter 6.12, "Store
and Recall", on page 55 in the User Manual.
To switch off instrument:
1. Press [Power] key.
2. Disconnect the AC power cable from the socket outlet.
4.3Trying Out the Instrument
This chapter describes some basic functions that you can perform with the R&S
NGA100.
4.3.1Selecting the Channels
To select a channel, press the corresponding channel key. The key illuminates.
4.3.2Setting the Output Voltage and Current Limit
To set the output voltage and current limit via Live-Mode:
1. Long press the rotary knob to enter into editing mode.
The voltage at channel 1 is highlighted in blue.
2. Move to the desired parameter via the arrow keys.
3. Rotate the knob to adjust its value.
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R&S®NGA100
4.3.3Activating the Channels Output
Getting Started
Maintenance and Support
Alternatively:
1. Press [Voltage] or [Current] key on the front panel.
2. For the two-channel R&S NGA100, press the desired channel key to activate the
respective voltage or current limit setting of that channel. The value on the respective channel becomes editable and is positioned by a blue cursor.
3. Press the [Left] or [Right] arrow key to move the cursor.
4. Press the [Up]/[Down] arrow key or turn the rotary knob to change the value.
The new value registers immediately.
The output voltages can be switched on or off regardless of the operating mode of the
instrument.
To activate the channel output, press the [Output] key on the front panel followed by
the desired channel key or vice versa.
For single channel models, press the [Output] key to activate the channel output.
Depending on the instrument operating mode, the display font color changes to green
in CV (constant voltage) mode and red in CC (constant current) mode.
4.3.4Storing/Recalling of Instrument Settings
The instrument settings can be stored in the instrument memory by long pressing the
[Store Recall] key followed by the desired memory location key ([M1] to [M5]). The previous saved settings are overwritten.
To retrieve the settings, press [Store Recall] key and select the desired memory location key ([M1] to [M5]).
4.4Maintenance and Support
4.4.1Maintenance
Regular maintenance improves the life span of the instrument, the following chapter
provides information on instrument maintenance.
Cleaning
Before cleaning the instrument, ensure that it has been switched off and the power
cable is disconnected.
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R&S®NGA100
4.4.2Contacting Customer Support
Getting Started
Maintenance and Support
Clean the outer case of the instrument at regular intervals, using a soft, lint-free dust
cloth.
Instrument damage caused by cleaning agents
Use a dry, lint-free cloth to clean the product. When cleaning, keep in mind that the
casing is not waterproof. Do not use any liquids for cleaning.
Cleaning agents, solvents (thinners, acetone), acids and bases can damage the front
panel labeling, plastic parts and display.
The display may only be cleaned with an appropriate glass cleaner. Rub the display
with a dry, clean and lint-free cloth. Do not allow cleaning fluid to enter the instrument.
Technical support – where and when you need it
For quick, expert help with any Rohde & Schwarz product, contact our customer support center. A team of highly qualified engineers provides support and works with you
to find a solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz products.
Contact information
Contact our customer support center at www.rohde-schwarz.com/support, or follow this
QR code:
Figure 4-4: QR code to the Rohde
&
Schwarz support page
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R&S®NGA100
5Operating Basics
5.1Display Overview
Operating Basics
Display Overview
The following displays the screen layout of R&S NGA100. It shows the output voltage,
current level and status bar information of the instrument.
Figure 5-1: Screen layout of R&S NGA100 for two-channel and single channel display
1 = Device status bar
2 = Channel status bar
3 = Channel display area
4 = Channel history information
5.1.1Status Bar Information
There are two types of status bar. One shows device status information and the other
shows the individual channel status information.
Device status bar
Table 5-1: Status bar function
FunctionDescription
EasyArbArbitrary output sequences on Ch 1.
If in use, the icon is highlighted in green.
If enabled, the icon is highlighted in white else it shows gray.
EasyRampOutput voltage to ramp continuously within a 10 ms to 10 s until set volt-
age, V
If in use for any channel, the icon is highlighted in green else it shows
gray.
.
set
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Operating Basics
Display Overview
FunctionDescription
DIO:xxxxDigital Trigger I/O (Digital Trigger I/O option NGA-K103 must be installed).
The "xxxx" refers to I/O status for DIO1, DIO2, DIO3, DIO4.
If in use, the icon is highlighted in green.
If enabled, the icon is highlighted in white.
If disabled or option not installed, the icon is highlighted in gray.
Wireless LAN connection (WLAN option R&S NGA-K102 must be installed).
If connected to access point, the icon is highlighted in green. It shows yellow when connecting to access point.
If disconnected or disabled, the icon is highlighted in gray.
TMC/VCPUSB connection with USB-VCP or USB-TMC setting.
If TMC or VCP is selected, the icon is highlighted in green.
Indicate buzzer state ("Disabled", "Fault Events", "Any Events").
If speaker is enabled, the icon is highlighted in green, else it shows gray.
Channel status bar
FunctionDescription
Channel numberChannel number indication.
PowerDisplay output power in watt.
SER/PARIndicator to show the series or parallel mode if chan-
nel fusion is enabled.
Available only for the two-channel models.
If enabled, the indicator displays in white.
SNSRemote sense status indication.
If enabled, the indicator displays in green.
OVP / OPP / OTPIndicator to show that the overload voltage, power or
temperature protection is triggered.
When triggered, the indicator shows flashing and
displays in red.
FuseIndicator to show the fuse status (on or off).
When triggered, the indicator shows flashing and
displays in red.
5.1.2Channel Display Area
The R&S NGA100 displays two channels display area (Ch 1, Ch 2) for NGA102 and
NGA142 and a single channel display area for NGA101 and NGA141. The respective
channel settings and functions are displayed for each channel.
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Operating Basics
Front Panel Keys
Figure 5-2: Channel display area for one-channel model
1 = Output voltage displays in volt. The display resolution for voltage is three digits after the decimal point
2 = Output current displays in ampere. The display resolution for current is five digits after the decimal point
3 = Channel history information displaying the historical maximum and minimum channel information (P min,
P max, V min, V max, I min and I max)
Operating mode
Different font colors on the screen are used to differentiate the various output status
and operating conditions of the instrument. It is easy to know and confirm the different
output status and operating conditions of the instrument by looking at the colors.
Figure 5-3: Color coding of difference operating conditions
ColorOperating modeDescription
OFF modeOutput is OFF
Editing modeA solid blue cursor is shown when an item is selected.
CV modeActive outputs are operated in a constant voltage mode.
CC modeActive outputs are operated in a constant current mode.
5.2Front Panel Keys
For an overview of the front panel keys, see Figure 4-1.
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R&S®NGA100
5.2.1Function Keys
Operating Basics
Front Panel Keys
The keys can be categorized based on their functions.
These keys control the channel output settings of the instrument.
Function keysDescription
[Ch 1], [Ch 2]Selects the respective channel for output.
[Output]Master output switch - it turns output for all
Applicable only for the two-channel models
See Chapter 6.1, "Setting the Channels Voltage
and Current", on page 38.
selected channels on or off.
See Chapter 4.3.3, "Activating the Channels Out-
put", on page 24
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R&S®NGA100
5.2.1.2Navigation Keys
5.2.1.3Instrument Functions
Operating Basics
Front Panel Keys
These keys provide navigation control in the instrument.
Function keysDescription
EnterConfirms menu selection or entry in dialog boxes.
Start and stop (long press) the EasyArb function. See Chapter 6.11.1, "EasyArb",
on page 52.
BackReturns to the previous menu level or exit the menu mode.
In the menu dialog, press the [Back] key to discard changes and restore the previous value.
In the channel display area, press the [Back] key to exit editing mode and keep the
changes made.
Long press on the [Back] key resets the channel history information. See Fig-
ure 5-2.
These keys control the channel output settings and instrument functions.
Function keysDescription
VoltageSets the output voltage for the channel. See "Set output voltage and current"
CurrentSets the output current limit for the channel. See "Set output voltage and current"
TrackApplicable only for the two-channel instrument models.
LogToggles the data logging on/off. See Chapter 6.10, "Data Logging", on page 51
MenuMain menu of the instrument. See Chapter 5.2.3, "Menu Key", on page 32.
RemoteLong press on [Remote] key to switch from remote to local control mode.
FuseToggles the fuse on/off. See Chapter 6.6.1, "Fuse Delay, Fuse Linking",
5.2.1.4Memory Functions
on page 38.
on page 38.
Configures the tracking function. See Chapter 6.7, "Tracking Function",
on page 46.
Long press on [Menu] key to capture screenshot on the USB stick. The default
screenshot filename starts with a prefix nga100_scr_ follows by an ascending
index 000-999 (e.g. nga100_scr_001.bmp).
on page 45.
These keys are dedicated for a specific preprogrammed function.
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R&S®NGA100
5.2.2Navigation Controls
Operating Basics
Front Panel Keys
Function keysDescription
M1 to M5Five memory keys to save or recall instrument settings.
Store RecallSaves/loads instrument settings. See Chapter 6.12, "Store and Recall",
on page 55.
Navigation and value setting are done via the rotary knob and arrow keys.
Figure 5-4: Navigation control
1 = Rotary Knob
2 = Arrow keys
3 = Live-mode
5.2.2.1Rotary Knob
Step size changes of the numeric value correspond to the speed of the rotary knob.
The rotary knob has several functions depending on the mode it is in:
●
Increments (clockwise direction) or decrements (counter-clockwise direction) any
kind of numeric value when in editing mode.
●
Navigates down (clockwise direction) or up (counterclock-wise direction) the menu
or menu items when rotated.
●
Acts as an [Enter] key when pressed.
●
Enter editing mode when pressed.
●
Enter Live-mode when long pressed.
5.2.2.2Arrow Keys
Using arrow keys, you can do several things:
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R&S®NGA100
5.2.2.3Live-Mode
Operating Basics
Front Panel Keys
●
The up and down keys increase or decrease any kind of numeric value when in
editing mode.
●
Navigate through the menu or menu items in the dialog box.
●
Long press on the up and down keys increase or decrease the numeric value of
the menu items to maximum or minimum value in menu dialog (e.g. fuse dialog,
protection dialog, EasyArb and EasyRamp dialog, etc)
To stop the increasing or decreasing of value, press the rotary knob.
●
The left and right keys move the cursor in an input field in the corresponding direction.
When the instrument goes into the Live-mode, all the arrow keys are illuminated.
The instrument automatically sets the Ch 1 voltage to editing mode. See Figure 5-3.
You can navigate to other channel settings by using the arrow keys to edit the voltage
and current values.
The duration of Live-mode depends on the key fallback time. Set a longer fallback time
if you need more time in this mode.
To exit Live-mode, press the rotary knob.
5.2.3Menu Key
The R&S NGA100 [Menu] key provides access to instrument's functions and general
instrumental settings. You can also obtain the instrument and service information via
the [Menu] key.
To access this mode:
1. Press [Menu] key on the front panel. The main menu screen appears.
Figure 5-5: Main menu
2. Navigate the menu via the rotary knob or arrow keys.
3. Press the rotary knob or [Enter] key to enter the submenu.
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Front Panel Keys
4.
Press key to return to the previous menu level or exit the menu mode if it is
already at the main menu level. Alternatively, press [Menu] key to exit the menu
mode from any menu level.
Table 5-2: Main menu hierarchy
MenuDescriptions
OutputMenu items related to the instrument's output functions.
InterfaceMenu items related to connection setup.
DeviceMenu items related to the instrument's general settings, reset function and infor-
mation about the instrument.
UtilitiesMenu items such as system test, firmware update function and information for
service.
Table 5-3: Output menu hierarchy
MenuMenu itemsDescriptions
OutputProtectionConfigures the OVP and OPP protection settings for the
instrument. See Chapter 6.8, "Protection", on page 46.
FuseConfigures the fuse delay and fuse linking function of the
channel. See Chapter 6.6.1, "Fuse Delay, Fuse Linking",
on page 45.
EasyArbPrograms the waveform of the instrument voltage and cur-
rent settings for Ch 1. See Chapter 6.11.1, "EasyArb",
on page 52.
EasyRampConfigures the ramping time of the voltage for selected
channel. See Chapter 6.11.2, "EasyRamp", on page 54.
CurrentRangeConfigures the current range used for readback measure-
ment. See Chapter 6.3, "Current Range", on page 40.
RemoteSenseConfigures the voltage compensation on cables connected
to the load. See Chapter 6.4, "Remote Sense Function",
on page 41.
ChannelFusionConfigures the channel fusion mode. See Chapter 6.5,
"Channel Fusion", on page 42.
Table 5-4: Interface menu hierarchy
MenuMenu itemsDescriptions
InterfaceEthernetConfigures the Ethernet interface. See Figure 6-15.
WLANConfigures the WLAN interface. See Figure 6-16.
The WLAN option NGA-K102 must be installed for this
function to be available in the instrument.
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R&S®NGA100
Operating Basics
On-screen Keyboard
MenuMenu itemsDescriptions
Digital IOConfigures the Digital Trigger I/O settings. See Fig-
ure 6-10.
The Digital Trigger I/O option NGA-K103 must be installed
for this function to be available in the instrument.
USBConfigures the USB connection. See Figure 6-18.
Requires restart of the instrument to apply the setting.
Table 5-5: Device menu hierarchy
MenuMenu itemsDescriptions
DeviceInformationDisplays instrument information. See Chapter 6.14.1,
"Instrument Information", on page 66.
GeneralConfigures general instrument settings. Chapter 6.14.2,
"General Instrument Settings", on page 67.
LicenseDisplays license information and install license options.
See Chapter 6.14.3, "Managing Options", on page 67.
ResetResets instrument to factory default settings. See Chap-
Table 5-6: Utilities menu hierarchy
MenuMenu itemsDescriptions
UtilitiesSystem TestProvides self-test function for display screen, keypad back-
UpdatePerforms firmware update on the instrument. See Chap-
ServiceThis function is restricted for service personnel only.
Date TimeConfigures system date and time. See Chapter 6.14.8,
HelpProvides help information for the instrument. See Chap-
5.3On-screen Keyboard
The on-screen keyboard allows you to input symbols and alphanumeric characters in
the input field. It can be invoked whenever there is an input field.
ter 6.14.4, "Reset Instrument", on page 68.
light, beeper and fan. See Chapter 6.14.5, "System Test",
on page 70.
ter 6.14.6, "Updating the Firmware", on page 70.
"Date Time", on page 72.
ter 6.14.7, "Help", on page 72.
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Operating Basics
Power Derating
Figure 5-6: Virtual keyboard
Invoke the on-screen keyboard as follows:
1. Move the cursor to the desired input field.
2. Press [Enter] key. The on-screen keyboard appears.
3. Once on the keyboard screen, press the arrow keys or turn the rotary knob to go to
the desired character.
4. Press the rotary knob to select the character.
Select
To delete the last entered character, select the key.
To delete the current entry, select the key.
Select the key to alternate between capital and small capital letters.
5. Repeat step 3 and 4 until all the characters are entered.
6. Select "OK" to confirm the input and exit the screen.
Select "ESC" or press [Menu] key to exit the screen without saving the changes.
key if you want to create a space between characters.
5.4Power Derating
The R&S NGA100 power supply series provides a maximum output power of 40 W for
a single channel model. Depending on the power supply models, up to 80 W of output
power is provided for models with two identical channels with a continuous voltage
range of 0 V to 35 V or 0 V to 100 V.
Combination of the set voltage and current limit results in the following output performance graph.
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Operating Basics
Operation Modes
Figure 5-7: Output performance graph
According to the basic electrical formula for power (P) = current (I) x voltage (V), the
following results for the maximum power per channel:
●
NGA101, NGA141: 40.0 W for single channel
●
NGA102, NGA142: 40.0 W per channel (80 W max for the combination of two
channels)
For more information on the combination of channels, see Chapter 8.1, "Parallel and
Series Mode", on page 108.
5.5Operation Modes
The R&S NGA100 operates in two different modes, i.e. CV and CC. The instrument
switches automatically between CV and CC depending on the connected load.
CV mode
Figure 5-8 shows that if the instrument is in the range of voltage regulation, the output
voltage V
when the connected load is increasing. In CV mode, the font text in the channel display
area changes to green.
See Figure 5-3
remains constant while the current may increase to its maximum value I
out
max
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R&S®NGA100
Operating Basics
Operation Modes
Figure 5-8: Current limit
CC mode
The current I
If I
reaches I
out
constant and limited to I
decreases below V
corresponds to the current setting adjustable in the instrument.
max
, the instrument switches to CC mode, i.e. the output current remains
max
even if the load increases. Instead, the output voltage V
max
. In a short circuit, the output voltage drops towards zero. In CC
set
mode, the font text in the channel display area changes to red.
See Figure 5-3
out
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R&S®NGA100
6Instrument Functions
6.1Setting the Channels Voltage and Current
Instrument Functions
Setting the Channels Voltage and Current
The R&S NGA100 comes with the following instrument models:
ModelVoltageCurrent
NGA101, NGA1020 V to 35 V<= 6 V: 6A
> 6 V to 9 V: 40 W
> 9 V to 20 V: 2 A
> 20 V to 35 V: 40 W
NGA141, NGA1420 V to 100 V<= 20 V: 2 A
> 20 V to 25 V: 40 W
> 25 V to 54 V: 0.75 A
> 54 V to 100 V: 40 W
Depending on models, toggle the respective channel key ([Ch 1] or [Ch 2] ) on the front
panel to select these channels. When a channel is selected, the respective channel
key illuminates. See Figure 6-1.
Figure 6-1: Ch 1 key illuminates when selected
Set output voltage and current
Voltage, current settings
If "Arbitrary" function of a Ch 1 is enabled, the channel voltage or current setting is disabled.
See "EasyArb function"on page 52.
Depending on the instrument models, the R&S NGA100 adjusts the voltage and current values with the following step size.
NGA101, NGA102NGA141, NGA142
1 mV10 mV
1 mA1 mA
The setting of current value corresponds to the I
of the respective channel. It is
max
advisable to set the current limit before operating the instrument to prevent damage to
the load and instrument in the case of malfunction like short-circuit.
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R&S®NGA100
Instrument Functions
Activating the Channel Output
1. Press [Voltage] or [Current] key.
The previous set channel is selected.
The channel font changes to blue and all the navigation controls illuminate.
Selected [Voltage] or [Current] key and the channel key are also illuminated.
2. Press the desired channel key to switch to that channel.
Selected channel key ([Ch 1], [Ch 2]) illuminates.
3. Enter the desired voltage or current value.
4. Press the rotary knob, [Voltage]/[Current] or [Enter] key to confirm the value.
The selected channel font text changes to yellow.
Figure 6-2: Voltage and current settings in the instrument
See
Chapter 5.2.2.3, "Live-Mode", on page 32 for alternative way to configure the volt-
age and current values.
See also General Instrument Settings on the keypad for setting the fallback time.
6.2Activating the Channel Output
Depending on the models, the outputs of the channels (Ch 1, Ch 2) can be switched on
or off by toggling the [Output] key on the front panel.
By default, the output is turned off when the instrument is switched on.
1. For two-channel models, press the required channel key.
Selected channel key (Ch 1, Ch 2) illuminates.
2. Press [Output] key.
The R&S NGA100 outputs the set voltage on the channel.
Depending on the operating mode, the font text in the channel display area shows
green in CV mode and red in CC mode.
See Chapter 5.5, "Operation Modes", on page 36.
See also Chapter 5.4, "Power Derating", on page 35.
Multiple outputs can be turned on or off at the same time.
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6.3Current Range
Instrument Functions
Current Range
Figure 6-3: Output of Ch2 in CC mode
The "CurrentRange" dialog provides the configuration to set the measured output current range.
1. Press [Menu] key on the front panel.
The main menu screen appears.
2. Select "Output" > "CurrentRange" menu item to configure current range setting.
The R&S NGA100 displays the "CurrentRange" dialog.
3. Set the required current range for respective channel.
●"High": The measured output current is displayed in "A" with 10 µA resolution
●"Low": The measured output current is displayed in "mA" with 1 µA resolution
If output current exceeds 200 mA, the "OVLD" information is displayed
●"Auto": The measured output current is displayed in the following:
–"A" with 10 µA resolution for current above 200 mA
–"mA" with 1 µA resolution for current below 200 mA
"High" current readback range is tested for 100uA resolution per specification.
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Instrument Functions
Remote Sense Function
To avoid oscillation in "Auto" mode, the "Low" range to "High" range switching point is
at 210 mA and the "High" range to "Low" range switching point is at 170 mA.
Example:
The following shows the displays of current range set to "High" for Ch 1 and "Low" for
Ch 2.
If output current has exceeded 200 mA when current range is set "Low", the "OVLD"
information is displayed.
6.4Remote Sense Function
The "Remote Sense" is a mechanism used to monitor and compensate the voltage
drops on the cables connected to the load.
1. Press [Menu] key.
2. Select "Output" > "Remote Sense" menu item to configure the remote sense mode.
The R&S NGA100 displays the "Remote Sense" dialog.
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R&S®NGA100
Instrument Functions
Channel Fusion
3. Select the required remote sense mode for selected channels.
●"EXT": The internal voltage sense relay in the instrument is switched on and
the connection of remote sense wires (S+, S- ) to the input of the load become
necessary. Failure to connect remote sense can cause overvoltage or unregulated voltage output from the R&S NGA100. The voltage sense relay remains
switched on even when output is turned off.
●"Disabled" : Remote sense connection is disabled.
6.5Channel Fusion
The "ChannelFusion" provides configuration to set the connection mode (series or parallel) of the device. The R&S NGA100 has an internal series link to connect Ch 1 and
Ch 2 if series mode is configured.
The device operates as a 1-channel device which combines both Ch 1 and Ch 2 output.
For more information, see Chapter 8.1, "Parallel and Series Mode", on page 108.
The "ChannelFusion" is available only in the two-channel models.
1. Press [Menu] key on the front panel.
The main menu screen appears.
2. Select "Output" > "ChannelFusion" menu item to configure channel fusion mode.
The R&S NGA100 displays the "ChannelFusion" dialog.
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R&S®NGA100
Instrument Functions
Channel Fusion
3. Set the required channel fusion mode:
●"Off": Channel operates separately
●"Series": In series mode, the two terminals in the middle are used for output.
There is an internal series link activated to connect channel 1 and channel 2
output. If this series mode is set, a "SER" indicator is displayed on the channel
status bar. For details, see Chapter 8.1.1, "Series Mode", on page 108
Figure 6-4: Series mode setting and output of one-channel display
Note: The "Digital IO", "EasyArb" and "EasyRamp" functions are disabled in
this mode.
●"Parallel": In parallel mode, an external wire is required to connect the "CH1"
and "CH2" terminals. All channels can be used as output. If parallel mode is
set, a "PAR" indicator is displayed on the channel status bar. See "Channel sta-
tus bar"on page 27.
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Instrument Functions
Activating Fuse
Figure 6-5: Parallel mode setting and output of one-channel display
See also Chapter 8.1.2, "Parallel Mode", on page 109.
Note: The "Digital IO", "EasyArb", "EasyRamp" and "CurrentRange" functions
are disabled in this mode.
6.6Activating Fuse
To protect a connected, sensitive output in general, the R&S NGA100 power supply
includes an electronic fuse which can be switched on individually for each channel.
A fuse delay can be applied to each channel and individual electronic fuses can be logically linked to switch off the interlinked channels if a fuse triggers.
For more information, see Chapter 6.6.1, "Fuse Delay, Fuse Linking", on page 45 for
fuse delay and fuse linking configuration.
1. Turn off the output before activating the fuse for each channel.
2. Press [Fuse] key.
The R&S NGA100 activates the fuse function and the [Fuse] key illuminates.
Activated fuses are also illuminated on channel keys for the two-channel models.
3. For the two-channel models, press the desired channel to activate or deactivate
the fuse.
For the single-channel models, toggle the [FUSE] key to activate or deactivate the
fuse.
Selected channel key ([Ch 1], [Ch 2] ) illuminates.
On the channel display area, the "FUSE" is indicated on selected channels.
4. Repeat step 1 and step 2 to disable the fuse function.
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R&S®NGA100
6.6.1Fuse Delay, Fuse Linking
Instrument Functions
Activating Fuse
Figure 6-6: Fuse indicator on respective channel
The fuse delay and fuse linking functions provide the flexibility to handle a fuse tripped
event when it occurs. When a fuse tripped event triggered, the affected channels are
turned off according to the settings configured in the fuse delay and fuse linking.
With fuse delay function, it allows you to ignore the current peaks set above the current
limit that occurs during the time set in the fuse delay. This prevents the fuse to be triggered in case of a capacitive load.
With fuse linking function, it allows you to logically interlink channels with their electronic fuses. If a fuse trips during operation, all channels interlinked with this channel
are turned off.
See Chapter 6.6, "Activating Fuse", on page 44 for more information.
1. Press [Menu] key.
2. Select "Output" > "Fuse" menu item.
The R&S NGA100 displays the "Fuse" dialog. See Figure 6-7.
Figure 6-7: Fuse dialog
3. Set "Fuse Delay" to a desire value.
You can set a value from 0 s to 10 s in a 0.01 s step size.
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R&S®NGA100
6.7Tracking Function
Instrument Functions
Protection
4. Configure the "Fuse Linking" setting.
The R&S NGA100 provides the following options:
Example for "Ch 1", the available options are as follows:
●"Ch 2": "Ch 2" is linked to "Ch 1". If "Ch 1" fuse tripped, "Ch 2" is turned off.
●"Disabled": "Ch 1" is not linked to any other channels.
Applicable only to NGA102 and NGA142 power supply models.
For power supplies with multiple channels, the channels can be linked such that
changes made on the selected tracked channel is applied to other channel.
1. Press [Track] key.
The R&S NGA100 activates the tracking function and the [Track] key illuminates.
2. Press the tracked channel to be tracked.
The selected tracked channel key ([Ch 1] or [Ch 2]) illuminates.
3. Press [Current] key if current values should be tracked.
All the channels are highlighted in blue and all the navigation controls illuminate.
Selected [Voltage] or [Current] key is also illuminated.
4. Set the desired voltage or current value.
Use the arrow keys or rotary knob to enter the value. All tracked channels voltage
or current are changed by the same amount.
6.8Protection
The R&S NGA100 provides individual overvoltage protection (OVP) and overpower
protection (OPP) settings for each channel. With both function activated, the R&S
NGA100 protects itself and the load in case of voltage or power overloads.
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Instrument Functions
Protection
If protection is tripped, a red flashing OVP or OPP indicator is displayed on the respective channel. See Figure 6-8.
A beep is sounded if buzzer is enabled. See Figure 6-21.
Figure 6-8: Indicator of OVP/OPP when tripped
1. Press [Menu] key.
2. Select "Output" > "Protection" menu item.
The R&S NGA100 displays the "Protection" dialog. See Figure 6-9.
Figure 6-9: Protection dialog
3. Set the OVP mode for the desired channel.
The available options are as follows:
●"Measured": The output is switched off if the measured value exceeds the set
limit. Switching on the channels triggered the OVP if the condition remains.
●"Protected": The output is disabled if the setting exceeds the set limit.
●"Disabled": OVP is set to maximum value supported by hardware. See the R&S
NGA100 brochure for the instrument specification.
4. Set the desired voltage for OVP.
The R&S NGA100 turns off the respective channel when the measured voltage
exceeded the preset value.
5. Set the OPP mode for the desired channel.
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6.9Digital Trigger I/O
Instrument Functions
Digital Trigger I/O
The available options are as follows:
●"Enabled": The channel is turned off if the measured power exceeds OPP
value.
●"Disabled": Depending on models, output power is limited to maximum value of
40 W (NGA101, NGA102) or 80 W (NGA141, NGA142).
6. Set the desired power for OPP.
The R&S NGA100 turns off the respective channel when the measured power
exceeded the preset value.
Digital I/O Pins Voltage Rating
Do not exceed the maximum voltage rating of the Digital I/O pins (5.25 V max) when
supplying voltages to the pins.
R&S NGA-K103 (order number: 5601.8425.99) option is required for the Digital Trigger
I/O.
The four data lines of the digital I/O interface are mutually independent and can be
used as trigger input or trigger output separately. See Figure 4-2.
●
Trigger input
The data lines of the digital I/O interface receive external trigger signal. The external trigger signal triggers the selected channel (Ch 1, Ch 2) with the set response
when the trigger condition (Active High or Active Low) is met.
●
Trigger output
The data lines of the digital I/O interface output an "Active Low" or "Active High"
signal when the trigger condition of the selected channel is met.
Table 6-1: Trigger in parameters and conditions
Trigger in parametersTrigger conditionsDescription
ChannelCh 1, Ch 2Target output channel selected for trigger
response.
Response TriggerOutput OnLevelSelected channel [Output] is enabled when
the selected logic level is met.
Output OffLevelSelected channel [Output] is disabled when
the selected logic level is met.
Output TogglePulseSelected channel [Output] is toggled when
the selected logic pulse is met.
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Instrument Functions
Digital Trigger I/O
Trigger in parametersTrigger conditionsDescription
Output InhibitLevelSelected channel [Output] is inhibited when
the selected logic level is met.
When the selected channel [Output] is put to
inhibit state, manual or remote operation on
selected channel [Output] is no longer possible .
To reverse the inhibit state, remove the
source of the trigger signal. You can either
disable the affected DIO interface or remove
the source from the affected DIO interface at
the rear panel.
Start EasyArb
(Only for Ch 1)
LogicActive HighSet the logic level of the trigger in signal.
Active Low
Table 6-2: Trigger out parameters and conditions
Trigger out parameters Trigger conditionsDescription
ChannelCh 1, Ch 2Output channel selected to monitor for trig-
Condition TriggerOutput On
Output Off
LevelActivates the EasyArb function on channel 1
when the selected logic level is met. The
EasyArb is deactivated when the level
changes (i.e from active high to active low)
See Chapter 6.11.1, "EasyArb",
on page 52.
PulseActivates the EasyArb function on channel 1
when the selected pulse is met. See Chap-
ter 6.11.1, "EasyArb", on page 52.
ger condition.
Output the selected logic level when the
[Output] is turned on at the selected channel.
Output the selected logic level when the
[Output] is turned off at the selected channel.
Fuse Tripped
CC Mode
Voltage Level>= "set value"Output the selected logic level when the
Current Level>= "set value"Output the selected logic level when the
Output the selected logic level when a fuse
tripped event occurs on the selected channel.
See Chapter 6.6, "Activating Fuse",
on page 44 and Chapter 6.6.1, "Fuse Delay,
Fuse Linking", on page 45.
Output the selected logic level when the
selected channel operates in the CC mode.
See "CC mode"on page 37.
voltage level of the selected channel is
greater or equal to the set level.
current level of the selected channel is
greater or equal to the set level.
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Trigger out parameters Trigger conditionsDescription
Critical EventOVPOutput the selected logic level when the
OPP
OTP
selected critical event (OVP, OPP, OTP)
occurs on the selected channel. See Chap-
ter 6.8, "Protection", on page 46.
Instrument Functions
Digital Trigger I/O
EasyArb Active
LogicActive HighSet the logic level of the trigger out signal.
Active Low
Output the selected logic level when the
EasyArb function is running on channel 1.
See Chapter 6.11.1, "EasyArb",
on page 52.
Note: For a reliable DIO trigger output, the
EasyArb waveform needs to be at least 200
ms.
To setup the DIO for usage, you have to enable the required DIO and "Master Enable"
parameters:
Note: After a recall function, the "Master Enable" is disabled, see "Recall instrument
settings"on page 57.
1. Press [Menu] key.
2. Select "Interface" > "Digital IO" menu item.
The R&S NGA100 displays the "Digital IO" dialog. See Figure 6-10.
Figure 6-10: Digital IO dialog
3. Select the desired DIO interface.
4. Select "Trigger In" to accept external trigger signal or "Trigger Out" to output the
trigger signal.
5. Set the desired "Channel".
6. Select the desired trigger condition.
See Table 6-1 and Table 6-2.
7. Set the desired "Logic" state.
8. Set the "Status" to "Enabled".
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6.10Data Logging
Instrument Functions
Data Logging
The R&S NGA100 enabled the selected DIO interface and monitor or feedback the
trigger condition on the selected channel.
9. Set the "Master Enable" to "Enabled".
The "Master Enable" is the master DIO interface which activates or deactivates all
the DIO interfaces.
The data logging function provides the logging of data to external USB storage.
1. Attached a USB storage to the USB connector on the front panel.
2. Press [Log] key on the front panel.
The R&S NGA100 starts the data logging.
An indicator "Logging started" is displayed on the status bar, the [Log] key is also
illuminated when data logging starts.
The data is stored in the file named log-yyyyMMddTHHmmss.csv , e.g.
log-19701231T235501.csv. See Figure 6-11.
3. Toggle the [Log] key to stop data logging.
The R&S NGA100 finishes the data logging.
An indicator "Finish writing to usb" is displayed on the status bar.
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Advanced Functions
Figure 6-11: Log data sample
6.11Advanced Functions
The following chapters provide information about the EasyArb and EasyRamp menu
items found in the [Menu] key.
1. Press [Menu] key.
The R&S NGA100 displays the main menu of the instrument.
See Chapter 5.2.3, "Menu Key", on page 32.
2. Select the "Output" menu item.
The R&S NGA100 displays the respective menu item dialog.
6.11.1EasyArb
EasyArb function
The arbitrary function is available only in Ch 1.
See "Voltage, current settings"on page 38.
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LabVIEW driver
The arbitrary functions in LabVIEW driver rshmc804x do not support the EasyArb feature in the R&S NGA100.
The R&S NGA100 series allows you to generate freely programmable waveforms
which can be reproduced within the limits set by the instrument for voltage and current.
1. Select "EasyArb" menu item.
The R&S NGA100 displays the "EasyArb" dialog. See Figure 6-12.
Figure 6-12: EasyArb dialog
2. Set "EasyArb Mode on Ch 1" to "Enabled".
The R&S NGA100 enabled the EasyArb function for Ch 1.
Note: If "EasyArb Mode" is set disabled, corresponding output state of Ch 1 is also
disabled.
3. Set the desired repetition cycle for the EasyArb function.
4. Set the desired data points for the EasyArb function.
The R&S NGA100 displays the number of EasyArb entry points in the EasyArb
table.
5. Configure the EasyArb table with the desired values for voltage, current and duration.
6. Select "Apply" to save the EasyArb settings.
The EasyArb data points are sent to Ch 1.
7. Select "Clear" to reset the EasyArb table values.
All the EasyArb data points are cleared from Ch 1.
See Table 6-3.
8. Press [Menu] key to return to the Channel Display Area.
The [Enter] key is illuminated.
9. Press [Output] key to enable the R&S NGA100 output.
10. Press [Enter] key to start the EasyArb function.
11. Long press on the [Enter] key to stop the EasyArb function.
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Table 6-3: EasyArb input field
EasyArb input fieldDescription
EasyArb modeEnable or disable the EasyArb function.
If enabled, the EasyArb function is activated in Ch 1.
See "EasyArb function"on page 52.
Data pointsSet the number of data points in the EasyArb table.
Each data point contains the settings for "Voltage",
"Current" and "Duration".
RepetitionSet the number of times the waveform is output in
the EasyArb table. If this is set to "0", the waveform
is output continuously.
EasyArb tableConfigures the EasyArb data table. Use the arrow
keys to navigate the "Voltage", "Current" and "Duration" settings.
ClearReset all the data points in the EasyArb table to
0.00 V, 1.000 A and 0.01 s for "Voltage", "Current"
and "Duration" respectively.
ApplySelect "Apply" to save EasyArb configuration.
6.11.2EasyRamp
With EasyRamp, the R&S NGA100 provides you the operating condition to output a
constant rise of the supply voltage. The output voltage can be increased continuously
within a 10 ms to 10 s timeframe. See Figure 6-13.
Figure 6-13: Ramping voltage output
1. Select "EasyRamp" menu item.
The R&S NGA100 displays the "EasyRamp" dialog. See Figure 6-14.
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Store and Recall
Figure 6-14: EasyRamp dialog
2. Select the desired channel.
3. Set the selected channel to "Enabled".
The R&S NGA100 enabled the EasyRamp function for the selected channel.
Note: If selected channel is set disabled, corresponding output state of the selected
channel is also disabled.
4. Set the "Ramping Time" of the selected channel.
5. Press [Enter] key to confirm the settings.
Table 6-4: EasyRamp input field
EasyRamp input fieldDescription
"Output Ramping"Enable or disable the EasyRamp function individu-
"Ramping Time"Duration taken for the voltage to rise to V
6.12Store and Recall
Upon power-up, the instrument loads the stored setting from memory location M1 with
the exception on EasyArb parameters. Auto saved parameters are also applied during
startup.
The R&S NGA100 output state of all channels (Ch 1, Ch 2) is disabled when the recall
function is activated.
ally for each channel.
.
set
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Store and Recall
Auto save instrument settings
Auto save of instrument settings are applied when any of the following parameters
changed:
●
General instrument settings
●
USB connection mode
●
WLAN settings
–"Module"
–"SSID"
–"Password"
●
Ethernet
The instrument settings can be stored or recalled from memory locations M1 to M5.
The following instrument settings are stored or recalled in the memory location:
●
Fuse settings
●
Protection settings
●
EasyRamp settings
●
Set voltage level
●
Set current level
1
●
EasyArb settings
1
●
Digital IO settings
1
The EasyArb or DIO settings can only be saved in the respective dialog environment
and all other above instrument settings are not saved when a store function is made.
When a recall function is made on the same stored memory location, only the EasyArb
or DIO settings are recalled.
Store instrument settings
1. Long press [Store Recall] key to store instrument settings.
The R&S NGA100 displays a message in the status bar "Store device settings:
select any [Mx] key".
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2. Press any of the memory keys ([M1],[M2], [M3], [M4], [M5]) to store the instrument
settings.
The R&S NGA100 stores the instruments settings in the selected memory location.
Recall instrument settings
1. Press [Store Recall] key to recall instrument settings.
The R&S NGA100 displays a message in the status bar "Recall device settings:
select any [Mx] key".
2. Press any of the memory keys ([M1],[M2], [M3], [M4], [M5]) to recall the instrument
settings.
The R&S NGA100 recalls the instruments settings from the selected memory location.
6.13Interfaces and Protocols
There are various of ways how the R&S NGA100 can be remotely accessed and controlled.
1. Press [Menu] key.
The R&S NGA100 displays the main menu of the instrument.
See Chapter 5.2.3, "Menu Key", on page 32.
2. Select "Interface" menu item to configure the required interface.
The R&S NGA100 displays the available interface options.
6.13.1Network Connection
There are two methods to establish a local area network (LAN) connection with the
R&S NGA100 for remote control operation.
●
LAN
●
Wireless LAN
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6.13.1.1LAN Connection
Instrument Functions
Interfaces and Protocols
The R&S NGA100 is equipped with a network interface and can be connected to an
Ethernet LAN (local area network). A LAN connection is necessary for remote control
of the instrument, and for access from a computer using a web browser.
Risk of network failure
Before connecting the instrument to the network or configuring the network, consult
your network administrator. Errors may affect the entire network.
To establish a network connection, connect a commercial RJ-45 cable to the LAN port
of the instrument and to a PC or network switch.
Depending on the network capacities, the TCP/IP address information for the instrument can be obtained in different ways.
●
If the network supports dynamic TCP/IP configuration using the Dynamic Host
Configuration Protocol (DHCP), and a DHCP server is available, all address information can be assigned automatically.
●
Otherwise, the address must be set manually. Automatic Private IP Addressing
(APIPA) is not supported.
By default, the instrument is configured to use dynamic TCP/IP configuration and
obtain all address information automatically. This means that it is safe to establish a
physical connection to the LAN without any previous instrument configuration.
Risk of network errors
Connection errors can affect the entire network. If your network does not support
DHCP, or if you choose to disable dynamic TCP/IP configuration, you must assign valid
address information before connecting the instrument to the LAN. Contact your network administrator to obtain a valid IP address.
1. Connect a LAN cable to the LAN port.
2. Configure the connection settings manually or have the network configure the settings for you via menu. By default, automatic configuration is set in the instrument.
For manual configuration, configure the settings as follows:
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a) Select "Ethernet" menu item.
The R&S NGA100 displays the "Ethernet" dialog.
Figure 6-15: Ethernet dialog
b) Select "DHCP & Auto-IP" for "IP Mode".
c) Enter the "IP Address".
d) Enter the "Subnet Mask".
e) Enter the "Default Gateway".
f)Select "Apply" to complete the configuration.
g) Press [Menu] key to exit the dialog.
Table 6-5: Ethernet input field
Ethernet input fieldDescription
"MAC Address"Shows the MAC address of this instrument.
"Status"Shows if the connection is up or down.
"IP Mode""Static & Manual": Manually configure an IP address
for the instrument.
"DHCP & Auto-IP": Automatically assign an IP
address to the instrument.
"IP Address"Address used in communication with the network.
Manually configure this field if IP mode set to "Static
& Manual".
"Subnet Mask"Secondary address used in communication with the
network.
Manually configure this field if IP mode set to "Static
& Manual".
"Default Gateway"Gateway address to connect to the network.
Manually configure this field if IP mode set to "Static
& Manual".
"Reset LAN"Restores the LAN settings to factory default.
"Apply"Apply static IP settings.
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6.13.1.2Wireless LAN Connection
Instrument Functions
Interfaces and Protocols
Risk of RF exposure
When WLAN is active, a minimum separation distance of 20 cm from front panel of the
instrument must be observed at all times.
When WLAN is active, no operation of antenna or transmitter should be co-located with
the instrument.
Wi-Fi transmitter performance
Frequency range: 2412 MHz to 2484 MHz
18.9 dBM (802.11g, 6Mbps)
Instrument option
R&S NGA-K102 (order number: 5601.8419.99) option is required to connect the R&S
NGA100 to a network via WLAN connection.
WLAN connection
The LAN connection has a higher priority over WLAN.
If LAN is connected, the WLAN connection will be disconnected. When LAN is disconnected, WLAN will reconnect automatically.
An alterative to connection in local area network is wireless LAN connection. With the
presence of an authenticated Wi-Fi signal, the R&S NGA100 automatically connects to
a network and navigation can be made via the web browser according to the WLAN
IEEE 802.11 b/g/n standards.
1. Select "WLAN" menu item.
The R&S NGA100 displays the "WLAN" dialog.
Figure 6-16: WLAN dialog
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2. Select "Enabled" for "Module".
3. Set the "SSID"
SSID - Service Set Identifier, a unique ID used for naming wireless network.
4. Set the associated password for the "SSID".
5. Select the "Connect" button.
If connection is successful, the "Status" shows "Connected". See Figure 6-17.
When the connection is alive, the WLAN icon turns green on the status bar. See
"Device status bar"on page 26.
Figure 6-17: WLAN connected
6. To disconnect, select "Disconnect" in the WLAN dialog.
6.13.2USB Connection
Change of USB class
If a change in "USB Class" is detected (i.e. from "TMC" to "VCP" or vice versa), the
rebooting of instrument is necessary to load the correct USB driver.
Alternatively, connect a USB cable to the USB port and PC for a USB connection. The
R&S NGA100 supports USB TMC and USB VCP connection.
1. Select "USB" menu item.
The R&S NGA100 displays the "USB" dialog.
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Figure 6-18: USB dialog
2. Set the desired "USB Mode".
●"VCP": USB virtual COM port
●"TMC": USB Test & Measurement class
3. Press [Enter] key to confirm the settings.
The R&S NGA100 displays message to prompt the user to restart the instrument to
apply the changes.
4. Restart the R&S NGA100 to apply changes.
6.13.2.1USB VCP
The following requirements for USB-VCP driver installation are necessary:
●
A PC with operating system Windows XP, VISTA, Windows 7 or Windows 8 (32Bit
or 64Bit).
●
Administrator rights are necessary for the installation of the driver.
The USB virtual COM port (USB-VCP) is a software interface that allows the communication to the R&S NGA100 using any terminal program (e.g. HMExplorer) via SCPI
commands once the corresponding Windows drivers have been installed. The actual
USB-VCP driver and software HMExplorer can be downloaded for free from the product homepage (http://www.rohde-schwarz.com/product/nga100).
If a connection between PC and the instrument has been established and no NGA100
USB-VCP driver is installed, the PC operating system displays a "Found New Hardware" wizard. In this case, the NGA100 USB-VCP driver must be installed.
The HMExplorer window application provides the R&S NGA100 a terminal function and
also the option to create screenshots and editor function to create the EasyArb table.
For more information of the driver installation and HMExplorer window application, see
the installation guide of the driver file and the internal HMExplorer help.
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6.13.2.2USB TMC
Instrument Functions
Interfaces and Protocols
The USB Test & Measurement class (USB-TMC) is a protocol that allows GPIB-like
communication via USB interfaces and is a separate instrument class of the USB specification. The USB-TMC protocol supports service queries, triggers, and other GPIBspecific instructions.
VISA drivers are installed and that it can be used directly in the corresponding environments. The driver is included in the NI-VISA package and can be downloaded at http://
www.ni.com/downloads/ni-drivers/.
A major benefit of the USB TMC class is that by sampling specific registers the controlling software can determine if commands have been terminated and if they have been
processed correctly. With USB-VCP, communication with instrument requires analysis
and polling mechanisms within the controlling software which may significantly strain
the interface of the measurement instruments. The TMC status registers solve this
problem with the USB TMC in the same manner as in the case with the GPIB interface
for the hardware via the corresponding control lines.
HMExplorer
The window application supports the communication via LAN, USB VCP and WLAN
only.
For more information of the VISA driver installation, see the installation guide of the
VISA driver file.
Once the driver is installed, the "USB Test and Measurement Device (IVI)" is displayed
in the Windows "Device Manager" dialog, see Figure 6-19.
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Figure 6-19: Device manager
6.13.3SCPI
SCPI (Standard Commands for Programmable Instruments) commands - messages are used for remote control. Commands that are not taken from the SCPI standard follow the SCPI syntax rules. The instrument supports the SCPI version 1999. The SCPI
standard is based on standard IEEE 488.2 and aims at the standardization of devicespecific commands, error handling and the status registers. The tutorial "Automatic
Measurement Control" - A tutorial on SCPI and IEEE 488.2" from John M. Pieper (R&S
order number 0002.3536.00) offers detailed information on concepts and definitions of
SCPI.
The requirements that the SCPI standard places on command syntax, error handling
and configuration of the status registers are explained in detail in the following sections. For more information, see Chapter 7, "Remote Control Commands",
on page 74 and Chapter A, "Additional Basics on Remote Control", on page 111.
6.13.4VISA
VISA is a standardized software interface library providing input and output functions to
communicate with instruments. The I/O channel (LAN or USB) is selected at initialization time by means of a channel-specific resource string. For more information about
VISA, refer to its user documentation.
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6.13.5Setting Up Remote Control Connection
Instrument Functions
Interfaces and Protocols
USB
The following shows the resource string format used when setting up a remote connection via the USB interface:
●
USB TMC
USB0::0x0AAD::
0x0197::5601.8002<device_variant>-<device_serial_number>::
INSTR where k02 is used for NGA101 device, k03 is used for NGA141 device, k04
is used for NGA102 device, k05 is used for NGA142 device. (e.g.
USB0::0x0AAD::0x0197::5601.8002k05-900211::INSTR)
●
USB VCP
ASRL<COM>::INSTR, where "COM" refers to the COM port number shown on the
controlling PC. (e.g. ASRL15::INSTR)
LAN/WLAN
See Chapter 6.13.1, "Network Connection", on page 57 for configuring the LAN and
WLAN parameters.
To set up the connection the IP address of the instrument is required. It is part of the
resource string used by the program to identify and control the instrument. The
resource string has the form:
TCPIP::‹IP_address›::INST
Example: If the instrument has the IP address 192.1.2.3; the valid resource string is:
TCPIP::192.1.2.3::INST
High-Speed LAN Instrument Protocol (HiSLIP) is a TCP/IP-based protocol for remote
instrument control of LAN-based test and measurement instruments. It was specified
by the IVI Foundation and is intended to replace the older VXI-11 protocol. To start
remote control session with HiSLIP, the valid resource string is:
TCPIP::192.1.2.3::HISLIP
The end character must be set to line feed (LF).
Remote
Press [Remote] key to unlock the instrument from the remote control mode. In the
remotes mode, all front panel keys on the instrument are disabled and the [Remote]
key is illuminated. To switch back to the local mode, press [Remote] key to release the
remote control mode.
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6.14General Instrument Settings
6.14.1Instrument Information
Instrument Functions
General Instrument Settings
The following chapters provide the general instrument information and utilities services
in R&S NGA100.
1. Press [Menu] key.
The R&S NGA100 displays the main menu of the instrument.
See Chapter 5.2.3, "Menu Key", on page 32.
2. Select "Device" menu item to configure the required instrument settings.
3. Select "Utilities" menu item to configure the utilities services.
The "Information" dialog provides the general instrument information of R&S NGA100.
► Select "Information" menu item.
The R&S NGA100 displays the "Information" dialog. See Figure 6-20.
Figure 6-20: Information dialog
Device informationDescription
"Device Model"Model of the instrument, i.e. NGA101, NGA102,
NGA141 or NGA 142.
"Serial Number"Unique identification number for the instrument.
"Material Number"Instrument orderable part number.
"Firmware Version"Software version that is installed in the instrument.
"Calibration Date"The last registered date when calibration was car-
ried out on the instrument.
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6.14.2General Instrument Settings
Instrument Functions
General Instrument Settings
Device informationDescription
"MAC Address"MAC address of the network interface.
"Export OSA to USB"The open-source acknowledgment (OSA) of the
R&S NGA100 can be exported to USB stick for reference.
General instrument settings such as keypad fallback time, screen display brightness
and buzzer setting are provided.
► Select "General" menu item.
The R&S NGA100 displays the "General" dialog. See Figure 6-21.
Figure 6-21: General dialog
General instrument settingsDescription
KeypadSelects the wait time before the instrument automat-
DisplaySelects the specific screen intensity to control the
SoundSelects the event where sound is generated.
6.14.3Managing Options
Options are enabled by entering a registered license key code.
You may choose to install from an XML file on USB or by manually entering the key
code.
► Select "License" menu item.
ically leaves the editing mode. Select "Off" to disable the automatic switching back.
screen brightness. Setting is applied immediately.
●
"Fault Events": Sounds on faulty events only
●
"Any Events": Sounds on faulty events and key
press events
●
Disabled: No sound is generated
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The R&S NGA100 displays the "License" dialog. See Figure 6-22.
Figure 6-22: License dialog
To install from an XML file, proceed as follows:
1. Copy the XML file containing the registered key code into the USB flash drive.
2. Connect the USB flash drive to the USB port of the instrument.
3. Select "Install".
If the installation is successful, the option is marked as "Installed" under "Installation Status".
To manually enter the key code, proceed as follows:
1. Press [Enter] key to invoke the On-screen Keyboard.
2. Enter the key code (30-digit number) of the option in the entry box.
3. Select "Install".
If the correct key code is entered, the option is marked as "Installed".
If an invalid key code is entered, an error message is displayed. Re-enter the correct key code.
6.14.4Reset Instrument
This function resets the instrument to factory default settings.
The following settings are reset to default:
► Select "Reset" menu item.
The R&S NGA100 displays the "Reset" dialog. See Figure 6-23 .
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Figure 6-23: Reset dialog
The following parameters are reset to default:
ParametersDefault settings
NGA 101, NGA 102NGA 141, NGA 142
Voltage, current6.000 V, 6.05020.00 V, 2.030 A
Overvoltage Protection (OVP)
Status, OVP level
Overpower Protection (OPP)
Status, OPP level
Output statusOff
Channel history information0
Channel fusion "Connection Mode"Off
"Current Measurement Range"High
"Fuse Delay", "Fuse Linking"0.00 s, Disabled
"Remote Sense"Disabled
"EasyArb Mode on Ch 1"Disabled
EasyRamp
"Output Ramping", "Ramping Time"
Digital IO
"Master Enabled"
"Direction", "Channel", "Condition"
"Logic", "Status"
Measured, 36.0 VMeasured, 102.0 V
Enabled, 41.0 WEnabled, 41.0 W
Disabled, 0.01 s
Disabled
"Trigger Out", "Ch 1", "Output On"
"Active High", "Disabled"
WLAN
SSID, Password
General
"Key Fallback Time", "Brightness Level"
"SSID", "......"
7 s, 85%
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6.14.5System Test
Instrument Functions
General Instrument Settings
This function provides a system test to check the instrument working conditions for
screen color display, key backlight, beeper and cooling fan.
► Select "System Test" menu item.
The R&S NGA100 displays the "System Test" dialog. See Figure 6-24.
Figure 6-24: System test dialog
System testDescription
"Display Test"Test that the display is working. RGB and a list of
"Key Backlight Test"Test that the key backlight is working.
"Beeper Test"Test that the instrument sound is working. Three
" Fan Test"Test that the cooling fan is working.
6.14.6Updating the Firmware
The latest firmware file can be found from the product homepage http://www.rohde-
schwarz.com/product/nga100.
For firmware update using SCPI command, see "Firmware update via SCPI command"
on page 71.
supported colors should appear on the screen during the test.
During the test, all keys on the front panel illuminate
except ([M1], [M2], [M3], [M4], [M5]) and [Store
Recall].
beep sounds should be heard during the test.
Do not power off or operate the instrument during a firmware update.
Do not rename the firmware filename.
1. Download the firmware file from the product homepage.
2. Copy the firmware to the root directory of a USB flash drive.
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General Instrument Settings
3. Connect the USB flash drive to the USB port of the instrument and wait for ten seconds.
4. Press [Menu] key.
The R&S NGA100 displays the main menu of the instrument. See Chapter 5.2.3,
"Menu Key", on page 32.
5. Select "Utilities" > "Update" menu item.
If firmware file is found, the R&S NGA100 displays the "Update" dialog. See Fig-
ure 6-25.
Figure 6-25: Update dialog
6. Press [Enter] key to start firmware update process.
The R&S NGA100 reboots automatically as part of the update process.
7. Alternatively, you can press [Back] key to cancel the firmware update process.
8. Wait for the completion of the update process.
It takes a few minutes to complete the firmware update process.
Firmware update via SCPI command
1. Download the firmware file from the product homepage.
2. Copy the firmware to the root directory of a USB flash drive.
3. Connect the USB flash drive to the USB port of the instrument and wait for ten seconds.
4. Connect to the instrument via USB, LAN or WLAN.
5. Send DIAGnostic:SERVice:FWUP "/FRONT_USB/NGA1xx" to start firmware
update remotely.
The R&S NGA100 reboots automatically as part of the update process.
6. Wait for the completion of the update process.
It takes a few minutes to complete the firmware update process.
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6.14.7Help
Instrument Functions
General Instrument Settings
The "Help" dialog provides the internet link and QR code for the latest R&S NGA100
information.
1. Select "Help" menu item.
The R&S NGA100 displays the "Help" dialog. See Figure 6-26.
Figure 6-26: Help dialog
2. Use a QR code reader to scan the QR code to link to the online product home
page.
Alternatively, you could enter the address: http://www.rohde-schwarz.com/product/
nga100 into a browser to access the latest help information.
6.14.8Date Time
The "Date Time" dialog provides the configuration to set system date and time.
1. Select "Date" menu item.
The R&S NGA100 displays the "Date Time" dialog.
Figure 6-27: Date time dialog
2. Select "Set" to change the system date and time.
The R&S NGA100 displays a dialog to set date and time in "dd mm yyyy" and "hh
mm" format respectively.
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3. Set the required date and time accordingly.
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7Remote Control Commands
7.1Common Commands
Remote Control Commands
Common Commands
This chapter provides the description of all remote commands available for the R&S
NGA100 series. The commands are sorted according to the menu structure of the
instrument. A list of commands in alphabetical order is given in the "List of Command"s
at the end of this documentation.
For more information on Messages and Command Structure, see the "Annex" at the
end of this documentation.
The common commands are taken from the IEEE 488.2 (IEC 625-2) standard. A particular command has the same effect on different devices. The headers of these commands consist of an asterisk "*" followed by three letters.
*CLS
Clear status
Sets the status byte (STB), the standard event register (ESR) and the EVENt part of
the QUEStionable and the OPERation registers to zero. The command does not
alter the mask and transition parts of the registers. It clears the output buffer.
Usage:
*ESE <Value>
Event status enable
Sets the event status enable register to the specified value. The query returns the contents of the event status enable register in decimal form.
Parameters:
<Value>Range: 0 to 255
*ESR?
Event status read
Returns the contents of the event status register in decimal form and then sets the register to zero.
Sets bit 0 in the event status register when all preceding commands have been executed. This bit can be used to initiate a service request. The query writes a "1" into the
output buffer when all preceding commands have been executed, which is useful for
command synchronization.
*OPT?
Option identification query
Queries the options included in the instrument. For a list of all available options and
their description, refer to the data sheet.
Usage:
*RST
Reset
Rohde&Schwarz,NGA100,5601.8002k03/100421,1.00
Query only
Sets the instrument to a defined default status. The default settings are indicated in the
description of commands.
Usage:
*STB?
Status byte query
Reads the contents of the status byte in decimal form.
Usage:
*WAI
Wait to continue
Setting only
Query only
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7.2System Commands
Remote Control Commands
System Commands
Prevents servicing of the subsequent commands until all preceding commands have
been executed and all signals have settled (see also command synchronization and
*OPC).
Usage: Event
The SYSTem commands perform the various system functions and configure the communication interface (LAN, WLAN) for the instrument.
SYSTem:BEEPer[:IMMediate]
The instrument returns a single beep immediately.
Usage:
SYSTem:LOCal
This command sets the system to front panel control. The front panel control is
unlocked.
Usage:
SYSTem:REMote
This command sets the system to remote state. The front panel control is locked. By
pressing Remote, the front panel control will be activated.
Usage:
SYSTem:RWLock
This command sets the system to remote state. The front panel control is locked. You
are only able to unlock the front panel control via SCPI command SYSTem:LOCal
on page 76.
Usage:
Event
Event
Event
Event
SYSTem:OPTion?
This command returns the list of options installed on the instrument.
Return values:
<arg0>
Usage: Query only
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System Commands
SYSTem:TEST:BEEPer
The instrument runs the system test: Beeper Test.
Usage: Event
SYSTem:TEST:FANCtrl
The instrument runs the system test: Fan Control Test.
Usage: Event
SYSTem:TEST:KEYBacklight
The instrument runs the system test: Keypad Backlight Test.
Usage:
SYSTem:TEST:SCReen
The instrument runs the system test: Screen Color Test.
Usage:
SYSTem:COMMunicate:SOCKet:DHCP[:STATe] <arg0>
This command sets or queries LAN interface mode. ON: automatic IP address from
DHCP server; OFF: manually set IP address.
Parameters:
<arg0>
SYSTem:COMMunicate:SOCKet:IPADdress?
This command queries IP address of the LAN interface.
Return values:
<arg0>
Usage: Query only
Event
Event
SYSTem:COMMunicate:WLAN:CONNect
The instrument connects to the predefined wireless access point.
Available only if option R&S NGA-K102 is installed.
Usage:
Event
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SYSTem:COMMunicate:WLAN:DISConnect
The instrument stops the connection to the predefined wireless access point.
Available only if option R&S NGA-K102 is installed.
Usage: Event
SYSTem:COMMunicate:WLAN:IPADdress?
This command queries the IP address of the device when the wireless interface works
as a client.
Available only if option R&S NGA-K102 is installed.
Return values:
<arg0>
Usage: Query only
SYSTem:COMMunicate:WLAN[:STATe]
This command activates/deactivates or queries the enable state of the wireless interface.
Available only if option R&S NGA-K102 is installed.
Parameters:
<arg0>
SYSTem:COMMunicate:WLAN:PASSword <arg0>
This command defines the password string of the Access Point when the wireless
interface works as a client.
Available only if option R&S NGA-K102 is installed.
Parameters:
<arg0>
Usage: Setting only
SYSTem:COMMunicate:WLAN:SSID <arg0>
This command defines or queries the SSID string of the access point when the wireless interface works as a client.
<arg0>
Available only if option R&S NGA-K102 is installed.
Parameters:
<arg0>
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7.3Configuration Commands
7.3.1Channel Selecting
Remote Control Commands
Configuration Commands
The following subsystems contain the commands for channel selection, voltage and
current settings for the instrument.
The INSTrument:Select subsystem contains the commands for selecting the output
channels.
Each channel of the power supply is considered as separate "instrument", which is
required by the SCPI standard. Therefore, the SCPI commands use the INSTRument
node to select a channel.
You can only address the number of channels a device is equipped with, e.g. a maximum of two channels for the NGA102 and NGA142.
Example: Selecting a channel
You can select a channel either with an OUTput parameter, or just by the channel
number. This example lists all ways how you can select and query a selected channel.
This command defines or queries the numeric selection of a channel. Each channel of
the power supply is considered as separate "instrument“, which is required by the SCPI
standard.
Parameters:
<arg0>{1 | 2}
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Example:
INSTrument[:SELect] <arg0>
This command defines or queries the channel selection. Each channel of the power
supply is considered as separate "instrument", which is required by the SCPI standard.
Selects the output channel as Ch 1.
INSTrument:NSELect? -> 1
Return the numeric channel selection.
OUTPut1 | OUTP1 | OUT1
Ch 1
OUTPut2 | OUTP2 | OUT2
Ch 2
INSTrument OUTPut1
INSTrument OUTP1
Selects the output channel as Ch 1.
INST? -> 2
Return the output channel as Ch 2.
7.3.2Remote Sense Setting
The VOLTage:SENSe subsystem contains the command for setting the remote sense
for the instrument.
[SOURce:]VOLTage:SENSe <arg0>
Sets or queries the remote sense state of the selected channel.
Parameters:
<arg0>EXTernal | EXT
The internal voltage sense relay in the instrument is switched on
and the connection of remote sense wires (S+, S- ) to the input
of the load become necessary.
Failure to connect remote sense can cause over voltage or
unregulated voltage output from the R&S NGA100. The voltage
sense relay remains switched on even when output is turned off.
DISable | DIS
Remote sense is disabled.
Example:
VOLT:SENS EXT
VOLT:SENS? -> EXTernal
Remote sense state is EXT.
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7.3.3Voltage Setting
Remote Control Commands
Configuration Commands
The SOURce:VOLTage subsystem contains the commands for setting the voltage of
the output channels. The default unit is V.
Example: Configuring the output voltage
This example contains all commands to configure and query the output voltage.
This command defines or queries the current value of the selected channel.
Parameters:
<Current><Current>
Set current in the range of 1 mA to 6.05 A for NGA101 and
NGA102 models or 1 mA to 2.03 A for NGA141 and NGA142
models.
Default unit: A
Example:
CURR 2
Set the selected channel current to 2 A.
CURR? -> 2
Return current value of the selected channel .
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7.3.5Combined Setting of Voltage and Current Setting
Remote Control Commands
Configuration Commands
[SOURce:]CURRent:RANGe <arg0>
Sets or queries the current range of the selected channel.
Parameters:
<arg0>AUTO | HIGH | LOW
AUTO
The measured output current is displayed in the following:
- "A" with 10 μA resolution for current above 200 mA
- "mA" with 1 μA resolution for current below 200 mA
HIGH
The measured output current is displayed in "A" with 10 μA resolution.
LOW
The measured output current is displayed in "mA" with 1 μA resolution.
The APPLy subsystem provides a command that enables you to set the current and
voltage of a channel in one step.
APPLy <arg0>
This command defines or queries the voltage and current value of the selected channel.
Parameters:
<arg0>{<Voltage> | DEF | MIN | MAX} [, {<Current> | DEF | MIN | MAX}]
<Voltage>
Set voltage in the range of 0 V to 35.05 V for NGA101 and
NGA102 models or 100.05 V for NGA141 and NGA142 models.
DEF
Set voltage to default.
MIN
Set voltage to minimum .
MAX
Set voltage to maximum.
<Current>
Set current in the range of 1 mA to 6.05 A for NGA101 and
NGA102 models or 1 mA to 2.03 A for NGA141 and NGA142
models.
DEF
Set current to default.
MIN
Set current to minimum.
MAX
Set current to maximum.
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Configuration Commands
Example:
7.3.6Output Setting
The OUTPut subsystem contains the commands for activating the output channels.
Example: Activating the channels
You can activate a selected channel and turn on or off the outputs either individually or
all outputs simultaneously. This example lists all ways how you can activate and query
the outputs.
// sets the voltage and current values for both channels
// activates both channels
INST:OUT1
VOLT 12
CURR 0.1
OUTP:SEL 1
INST:OUT2
VOLT 12
CURR 0.2
OUTP:SEL 1
// turns on the output of both channels
OUTP:GEN 1
INST OUT1
APPLY "6,2"
Set channel 1 to output 6 V and 2 A.
APPLY? -> 6, 2
Return voltage and current value of the selected channel.
OUTPut[:STATe] <arg0>
This command defines or queries for output state for the previous selected channel.
Parameters:
<arg0>{OFF | ON | 0 | 1}
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ON | 1
Output state will be turned on.
OFF | 0
Output state will be turned off.
*RST: OFF | 0
Example:
OUTPut:FUSion <arg0>
Sets or queries the output fusion state for 2-channel model.
Parameters:
<arg0>OFF | SERies | PARallel
Example:
INST OUT1
OUTP ON
Ch 1 and output state will be activated; i.e. Ch 1 and Output key
on the front panel will be illuminated.
OUTP? -> 1
Return the output state.
OFF
Output fusion state is off.
SERies
Output fusion state is set to series.
PARallel
Output fusion state is set to parallel.
OUTP:FUS SER
OUTP:FUS? -> SER
Output fusion state is set to series.
OUTPut:GENeral <arg0>
This command activates or queries the instrument master output state.
If the master output state is activated, the Output key on the front panel will be illuminated.
Parameters:
<arg0>{OFF | ON | 0 | 1}
ON | 1
Output state will be activated
OFF | 0
Output state will be deactivated
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Configuration Commands
Example:
OUTPut:MODE?
Queries the output operating mode of the previous selected channel
Return values:
<arg0>{OFF | CV | CC}
INST OUT1
OUTP:SEL ON
Volt 12
Curr 0.1
Ch 1 is activated.
INST OUT2
OUTP:SEL ON
Volt 12
Curr 0.2
Ch 2 is activated.
OUTP:GEN ON
Ch 1 and Ch 2 and Output state are activated.
OUTP:GEN? -> 1
Return output state of the channel.
OFF
Output is turned off.
CV
Output mode changed to constant voltage mode.
CC
Output mode changed to constant current mode.
*RST: OFF
Example: OUTP:MODE? -> CV
Output mode has changed to constant voltage mode.
Usage: Query only
OUTPut:SELect <arg0>
This command activates or queries the instrument channel state of the previous
selected channel.
If the selected channel is activated, the respective channel key (i.e. Ch 1, Ch 2) on the
front panel will be illuminated.
Parameters:
<arg0>{OFF | ON | 0 | 1}
ON | 1
Selected channel will be activated.
OFF | 0
Selected channel will be deactivated.
*RST: OFF | 0
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Configuration Commands
Example:
OUTP:SEL? -> 1
Return the state of the selected channel.
OTP:TRIPped?
Queries the overtemperature protection (OTP) tripped state of the previous selected
channel.
It is tripped if an OTP event occurs.
Return values:
<arg0>{OFF | ON | 0 | 1}
Example: OUTP:TRIP? -> 1
INST OUT1
OUTP:SEL ON
Ch 1 is activated.
ON | 1
OTP event occurs.
OFF | 0
OTP event not occurs.
*RST: OFF | 0
OTP event occurs.
Usage: Query only
7.3.7Fuse Setting
The FUSE subsystem contains the commands for overcurrent protection parameters
such as activating fuses and setting fuse parameters of the output channels. The
default unit is A.
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Configuration Commands
Example: Configuring fuses
This example contains all commands to configure and query the fuse states and settings.
// queries the combined overcurrent protection of the selected channel
FUSE:LINK? 2
// response 0
FUSE:DELay <Delay>
This command defines and queries the fuse delay for the previous selected channel.
Parameters:
<Delay>{<Delay> | MIN | MAX}
<delay>
0 s to 10 s (adjustable in 0.010 s steps e.g. FUSE:DEL 0.010 =
0.01 s)
MIN
Set fuse delay to minimum.
MAX
Set fuse delay to maximum.
Default unit: ms
Example:
INST OUT1
FUSE:DEL 0.050
Set fuse delay of channel 1 to 50 ms.
FUSE:DEL? -> 0.05
Return the fuse delay time of the selected channel.
FUSE:LINK <arg0>
This command defines or queries the channel fuses (fuse linking) for the previous
selected channel.
Parameters:
<arg0>1
channel Ch 1
2
channel Ch 2
Example:
INST OUT1
FUSE:LINK 2
Fuse Ch 1 is linked with Ch 2
FUSE:LINK? 2 -> 1
If the fuse of Ch 1 is linked with Ch 2, a "1" is returned.
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Configuration Commands
FUSE:TRIPped?
This command queries the fuse tripped of the previous selected channel.
Return values:
<arg0>ON
Fuse is tripped.
OFF
Fuse is not tripped.
Example:
Usage: Query only
FUSE:UNLink <arg0>
This command unlinks the channel fuses (fuse linking) for the previous selected channel.
Parameters:
<arg0>1
Example:
Usage: Setting only
INST OUT1
FUSE:TRIP? -> 0
Fuse of Ch 1 has not tripped.
channel Ch 1
2
channel Ch 2
INST OUT1
FUSE:LINK 2
FUSE:UNL 2
Fuse Ch 1 is unlinked with Ch 2
FUSE[:STATe] <arg0>
This command defines or queries the fuse for the previous selected channel.
Parameters:
<arg0>{0 | 1}
1
Fuse will be activated.
0
Fuse will be deactivated.
*RST: OFF | 0
Example:
INST OUT1
FUSE ON
Fuse of Ch 1 is activated
FUSE? -> 1
Return fuse state of the selected channel.
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7.3.8OVP Setting
Remote Control Commands
Configuration Commands
The VOLTage:PROTection subsystem contains the commands for setting the overvoltage protection parameters for the output channels. The default unit is V.
This command defines or queries the OVP mode for the previous selected channel.
Parameters:
<arg0>MEASured | PROTected
MEASured
The OVP switches off if the measured value exceeds the threshold.
PROTected
If the adjusted threshold is exceeded the output of the instrument will be not switched on; additionally the measured value is
monitored (please also refer to function MEASured).
Example:
[SOURce:]VOLTage:PROTection:TRIPped?
This command queries the OVP tripped status of the previous selected channel.
Return values:
<arg0>ON | OFF
Example:
Usage: Query only
INST OUT1
VOLT:PROT:MODE PROT
Sets OVP protected mode for Ch 1.
VOLT:PROT:MODE? -> PROTected
Return the selected channel OVP mode.
ON
OVP is tripped
OFF
OVP is not tripped
INST OUT1
VOLT:PROT:TRIP? -> OFF
OVP of Ch 1 has not tripped.
[SOURce:]VOLTage:PROTection[:STATe] <arg0>
This command defines or queries the OVP state for the previous selected channel.
Parameters:
<arg0>1 | 0
1
OVP is activated.
0
OVP is deactivated.
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Configuration Commands
Example:
[SOURce:]VOLTage:PROTection:LEVel <Voltage>
This command defines or queries the OVP value of the previous selected channel.
Parameters:
<Voltage>{<Voltage> | MIN | MAX}
Example:
INST OUT1
VOLT:PROT ON
OVP of Ch 1 is activated.
VOLT:PROT? -> 1
Return the OVP state of the selected channel.
<Voltage>
Set the OVP value in the range of 0 mV up to 36 V for NGA101
and NGA102 models or 0 mV up to 102 V for NGA141 and
NGA142 models (adjustable in 100 mV steps):
MIN
Set the OVP value to minimum.
MAX
Set the OVP value to maximum.
Default unit: V
INST OUT1
VOLT:PROT:LEV 5
Set the OVP value of Ch 1 to 5 V.
VOLT:PROT:LEV?
Return the selected channel OVP value.
[SOURce:]VOLTage:PROTection:CLEar
This command resets the OVP state of the selected channel. If the OVP has tripped
the OVP message on the display will be cleared for the selected channel.
Usage:
7.3.9OPP Setting
The POWer:PROTection subsystem contains the commands for setting the overpower protection parameters for the output channels. The default unit is W.
// queries whether the OPP in channel 1 has tripped
POW:PROT:TRIP?
// response: 1 OPP is tripped
// response: 0 OPP is not tripped
// resets a tripped OPP in the selected channel
POW:PROT:CLEar
[SOURce:]POWer:PROTection:LEVel <Power>
This command defines or queries the OPP value of the previous selected channel.
Parameters:
<Power>{<Voltage> | MIN | MAX}
<Voltage>
Set the OPP value in the range of 0 W up to 41W (adjustable in
100 mW steps)
MIN
Set the OPP value to minimum.
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Configuration Commands
MAX
Set the OPP value to maximum
Default unit: W
Example:
[SOURce:]POWer:PROTection:TRIPped?
This command queries the OPP tripped status of the previous selected channel
Return values:
<arg0>1 | 0
Example:
Usage: Query only
INST OUT1
POW:PROT:LEV 5
Set the OPP value of channel 1 to 5 W.
POW:PROT:LEV? -> 5
Return the selected channel OPP value.
1
OPP is tripped.
0
OPP is not tripped.
INST OUT1
POW:PROT:TRIP? -> 0
OPP state of Ch 1 has not tripped.
[SOURce:]POWer:PROTection[:STATe] <arg0>
This command defines or queries the OPP state for the previous selected channel.
Parameters:
<arg0>ON | OFF | 1 | 0
ON | 1
OPP is activated.
OFF | 0
OPP is deactivated.
Example:
[SOURce:]POWer:PROTection:CLEar
This command resets the OPP state of the selected channel. If the OPP has tripped
the red blinking OPP message on the display will be cleared for the selected channel.
Usage:
INST OUT1
POW:PROT ON
OPP of Ch 1 is activated.
POW:PROT?
Return the OPP state of the selected channel.
Event
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7.4Measurement Commands
Remote Control Commands
Advanced Operating Commands
The MEASure subsystem provides commands to query the voltage and current values
of a channel.
MEASure[:SCALar]:CURRent[:DC]?
This command queries the measured current value of the previous selected channel.
Return values:
<Current><numeric_value>
Return the measured current.
Default unit: A
Example: MEAS:CURR? -> 1.000
Usage: Query only
MEASure[:SCALar]:POWer?
This command queries the measured power value of the previous selected channel.
Return values:
<Power><Numeric_value>
Return the measured power value.
Default unit: W
Example: MEAS:POW? -> 3.00E+00
Return the measured power value of the selected channel.
Usage: Query only
MEASure[:SCALar][:VOLTage][:DC]?
This command queries the measured voltage value of the previous selected channel.
Return values:
<Voltage><numeric_value>
Return the measured voltage.
Default unit: V
Example: MEAS? -> 1.000E+00
Usage: Query only
7.5Advanced Operating Commands
The following shows the subsystem that contains the commands for configuring the
arbitrary function, easyramp and Digital I/O functions.
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7.5.1Arbitrary Commands
Remote Control Commands
Advanced Operating Commands
The ARBitrary subsystem contains the commands for configuring an arbitrary
sequence for the output channels.
Example: Configuring an arbitrary sequence
This programming example generates an arbitrary sequence for a selected channel.
The sequence starts at 1 V and 1 A for 1 sec, and both values are incremented each
second by 1. The generated arbitrary waveform is transferred to Ch 1. When activated,
the R&S NGA100 provides the arbitrary waveform at the output of the selected channel, and repeats it 10 times.
ARBitrary:CLEar
This command clears the previous defined arbitrary waveform data for channel 1.
Usage:
ARBitrary:DATA <arg0>
Defines or queries the arbitrary points for channel 1. The dwell time between two
points is from 10ms to 600s.