B+K precision 9129B User manual

Model 9129B
Triple Output Programmable DC Power Supply
USER MANUAL
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i
Safety Summary
The following safety precautions apply to both operating and maintenance personnel and must
be followed during all phases ofoperation, service, and repair of this instrument.
Before applying power tothis instrument:
• Read and understand the safety and operational information in this manual.
• Apply all the listed safety precautions.
• Verify that the voltage selector at the line power cord input isset tothe correct line
voltage. Operating the instrument at an incorrect line voltage will void the warranty.
• Make all connections tothe instrument before applying power.
• Do not operate the instrument in ways not specified by this manual orby B&K Precision.
Failure to comply with these precautions or with warnings elsewhere inthis manual violates the
safety standards of design, manufacture, and intended useof the instrument. B&K Precision
assumes noliability for a customer’s failure tocomply with these requirements.
Category rating
The IEC 61010 standard defines safety category ratings that specify the amount of electrical
energy available and the voltage impulses that mayoccur onelectrical conductors associated
with these category ratings. The category rating isa Roman numeral of I,II, III, orIV. This rating
is alsoaccompanied by a maximum voltage ofthe circuit tobetested, which defines the voltage
impulses expected and required insulation clearances. These categories are:
Category I (CAT I): Measurement instruments whose measurement inputs are not intended to
be connected to the mains supply. The voltages in the environment are typically derived from a
limited-energy transformer or a battery.
Category II(CAT II): Measurement instruments whose measurement inputs are meant to be
connected to the mains supply ata standard wall outlet orsimilar sources. Example
measurement environments are portable tools and household appliances.
Category III (CAT III): Measurement instruments whose measurement inputs are meant to be
connected to the mains installation ofa building. Examples aremeasurements inside a
building's circuit breaker panel or the wiring ofpermanently-installed motors.
Category IV(CAT IV): Measurement instruments whose measurement inputs are meant to be
connected to the primary power entering a building orother outdoor wiring.
Do not usethis instrument in an electrical environment with a higher category rating than what
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is specified in this manual for this instrument.
You must ensure that each accessory you use with this instrument has a category rating equal to
or higher than the instrument's category rating tomaintain the instrument's category rating.
Failure to dosowill lower the category rating ofthe measuring system.
Electrical Power
This instrument isintended to be powered from a CATEGORY IImains power environment.The
mains power should be 120 V RMS or 240 VRMS. Use only the power cord supplied with the
instrument and ensure itisappropriate for your country ofuse.
Ground the Instrument
To minimize shock hazard, the instrument chassis and cabinet must be connected to an
electrical safety ground. This instrument isgrounded through the ground conductor of the
supplied, three-conductor AC line power cable. The power cable must be plugged into an
approved three-conductor electrical outlet. The power jackandmating plug ofthe power cable
meet IEC safety standards.
Do not alter ordefeat the ground connection. Without the safety ground connection, all
accessible conductive parts (including control knobs) mayprovide anelectric shock. Failure to
use a properly-grounded approved outlet and the recommended three-conductor AC line power
cable mayresult in injury or death.
Unless otherwise stated, aground connection onthe instrument's frontor rear panel is for a
reference of potential only and isnot tobe used asa safety ground.
Do not operate in an explosive or flammable atmosphere
Do not operate the instrument in the presence offlammable gases orvapors, fumes, or finely-
divided particulates.
The instrument isdesigned to be used in office-type indoor environments. Do not operate the
instrument
• In the presence ofnoxious, corrosive, orflammable fumes, gases, vapors, chemicals, or
finely-divided particulates.
• In relative humidity conditions outside the instrument's specifications.
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• In environments where there is a danger of any liquid being spilled on the instrument or
where any liquid can condense onthe instrument.
• In air temperatures exceeding thespecified operating temperatures.
• In atmospheric pressures outside the specified altitude limits orwhere the surrounding
gas is not air.
• In environments with restricted cooling air flow, even if the air temperatures are within
specifications.
• In direct sunlight.
This instrument isintended to be used inanindoor pollution degree 2 environment. The
operating temperature range is 0°C to 40 °C and the operating humidity range isup to 80%
relative humidity with nocondensation allowed.
Measurements made by thisinstrument may be outside specifications ifthe instrument isused
in non-office-type environments. Such environments may include rapid temperature or
humidity changes, sunlight, vibration and/or mechanical shocks, acoustic noise, electrical noise,
strong electric fields, orstrong magnetic fields.
Do not operate instrument if damaged
If the instrument is damaged, appears to be damaged, orifany liquid,
chemical, orother material gets on orinside the instrument, remove the instrument's power
cord, remove the instrument from service, label it asnot tobe operated, and return the
instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination
of the instrument.
Clean the instrument only as instructed
Do not clean the instrument, itsswitches, oritsterminals with contact cleaners, abrasives,
lubricants, solvents, acids/bases, or other such chemicals. Clean the instrument only with a
clean dry lint-free cloth or as instructed in this manual.
Not for critical applications
This instrument isnot authorized for usein contact with thehuman body or for use asa
component in a life-support device or system.
Do not touch live circuits
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Instrument covers must not be removed by operating personnel. Component replacement and
internal adjustments must bemade by qualified service-trained maintenance personnel who
are aware of the hazards involved when the instrument's covers and shields are removed.
Under certain conditions, even with the power cord removed, dangerous voltages may exist
when the covers are removed. To avoid injuries, always disconnect the power cord from the
instrument, disconnect all other connections (for example, test leads, computer interface
cables, etc.), discharge all circuits, andverify there arenohazardous voltages present onany
conductors by measurements with aproperly-operating voltage-sensing device before touching
any internal parts. Verify the voltage-sensingdevice is working properly before and after making
the measurements by testing with known-operating voltage sources and test for both DC and AC
voltages. Donot attempt anyservice or adjustment unless another person capable ofrendering
first aid and resuscitation ispresent.
Do not insert any object into an instrument's ventilation openings orother openings.
Hazardous voltages may be present inunexpected locations in circuitry being tested when a
fault condition in the circuit exists.
Fuse replacement
Fuse replacement must be done by qualified service-trained maintenance personnel who are
aware ofthe instrument's fuserequirements and safe replacement procedures. Disconnect the
instrument from the power line before replacing fuses. Replace fuses only with new fuses of the
fuse types, voltage ratings, and current ratings specified in this manual oron the back ofthe
instrument. Failure to dosomaydamage the instrument, lead to a safety hazard, orcause a fire.
Failure to usethe specified fuses will void the warranty.
Servicing
Do not substitute parts that are not approved byB&K Precision ormodify this instrument.
Return the instrument toB&K Precision for service and repair toensure that safety and
performance features are maintained.
Cooling fans
This instrument contains one or more cooling fans. For continued safe operation ofthe
instrument, the air inlet and exhaust openings for these fans must not be blocked nor must
accumulated dust or other debris beallowed to reduce air flow. Maintain atleast 25mm
clearance around the sides ofthe instrument that contain air inlet and exhaust ports. If
mounted in a rack, position power devices in the rack above the instrument to minimize
instrument heating while rack mounted. Donot continue to operate the instrument if you
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cannot verify the fan isoperating (note some fans may have intermittent duty cycles). Do not
insert anyobject into the fan's inlet oroutlet.
Use correctly sized wires
To connect aload to the power supply, usea wire diameter large enough to handle the
maximum continuous output short-circuit current ofthepower supply without the wire
overheating.
For continued safe use of the instrument
• Do not place heavy objects onthe instrument.
• Do not obstruct cooling air flow to theinstrument.
• Do not place a hot soldering iron on the instrument.
• Do not pull the instrument with the power cord, connected probe, or connected test
lead.
• Do not move the instrument when a probe isconnected toa circuit being tested.
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Compliance Statements
Disposal of Old Electrical & Electronic Equipment(Applicable in the European
Union and other European countrieswith separate collection systems)
This product is subject to Directive 2002/96/EC of the European
Parliament and the Council of the European Union on waste electrical
and electronic equipment (WEEE), and in jurisdictions adopting that
Directive, is marked as being put on the market after August 13, 2005,
and should not be disposed of as unsorted municipal waste. Please
utilize your local WEEE collection facilities in the disposition of this
product and otherwise observe all applicable requirements.
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CE Declaration of Conformity
This instrument meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC
Electromagnetic Compatibility Directive with the following standards.
Low Voltage Directive
- EN61010-1: 2001
EMC Directive
- EN 61000-3-2: 2006
- EN 61000-3-3: 1995+A1: 2001+A2: 2005
- EN 61000-4-2 / -3 / -4/ -5 / -6 / -11
- EN 61326-1: 2006
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Safety Symbols
Refer to the user manual for warning information
to avoid hazard orpersonal injury andprevent
damage toinstrument.
Electric Shock hazard
On (Supply). This isthe AC mains
connect/disconnect switch on the front of the
instrument.
Off (Supply). This is the AC mains
connect/disconnect switch on the front of the
instrument.
Direct current
Alternating current
Fuse Symbol
Chassis (earth ground) symbol
Ground terminal
Protective earth ground
CAUTION indicates a hazardous situation which, if
not avoided, will result inminor ormoderate injury
WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury
DANGER indicates a hazardous situation which, if
not avoided, will result indeath or serious injury.
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Table of Contents
Safety Summary...................................................................................................i
Compliance Statements ..............................................................................................................vi
Safety Symbols ..........................................................................................................................viii
1General Information.....................................................................................1
1.1 Product Overview............................................................................................................. 1
1.2 Package Contents ............................................................................................................. 2
1.3 Product Dimensions ......................................................................................................... 2
1.4 Rackmount Installation..................................................................................................... 3
1.5 Front Panel Overview ....................................................................................................... 4
1.6 Rear Panel Overview ........................................................................................................ 5
1.7 Keypad Overview.............................................................................................................. 6
Keypad Description .................................................................................................................6
1.8 Display Overview.............................................................................................................. 7
Display Description..................................................................................................................7
2Getting Started.............................................................................................8
2.1 Input Power and Fuse Requirements............................................................................... 8
Input Power............................................................................................................................. 8
Fuse Requirements..................................................................................................................9
2.2 Line Voltage Selection ...................................................................................................... 9
2.3 Output Connections ....................................................................................................... 11
2.4 Preliminary Check........................................................................................................... 11
Self-test Errors.......................................................................................................................12
Output Check......................................................................................................................... 12
Check Model and Firmware Version .....................................................................................14
3Front Panel Operation................................................................................15
3.1 MENU ............................................................................................................................. 15
Output Power-On State.........................................................................................................16
Beeper On/Off.......................................................................................................................16
Baud Rate..............................................................................................................................16
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Memory Group......................................................................................................................17
Combined Series and Parallel Modes.................................................................................... 17
Tracking Mode ...................................................................................................................... 20
3.2 Limit Voltage Protection (LVP)........................................................................................ 21
3.3 Setting Voltage and Current ........................................................................................... 22
3.4 Save andRecall ............................................................................................................... 22
Select Memory Group ........................................................................................................... 23
Save Settings.........................................................................................................................23
Recall Settings.......................................................................................................................23
3.5 Key Lock.......................................................................................................................... 24
4Protections.................................................................................................25
Over Temperature Protection ................................................................................................... 25
Over Voltage Protection (OVP).................................................................................................. 25
5Remote Operation......................................................................................26
Communication cables.............................................................................................................. 26
USB to TTL Adapter IT-E132B................................................................................................ 26
RS-232 Settings ......................................................................................................................... 27
6Remote Commands....................................................................................28
7Troubleshooting Guide...............................................................................29
General..................................................................................................................................29
Remote Control .....................................................................................................................29
8Specifications.............................................................................................30
9Calibration..................................................................................................32
SERVICE INFORMATION.....................................................................................33
LIMITED THREE-YEAR WARRANTY.....................................................................34
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1General Information
1.1 Product Overview
The 9129B is a fully Programmable Triple Output DC Power Supply delivering 0-30V/ 0-3A on
channels 1 and 2 and 0-5V/0-3A on channel 3.Each output can be adjusted independently and
they can be connected (CH1 and CH2)in series or parallel to produce higher voltages or
currents. The front panel keys and the encoder knob provide efficient options to adjust the
voltage and current of any of the three outputs, enable or disable parallel, series or tracking
mode, store and recall operating states andenable/disable individual outputs.
Features:
• 3Independent, fully programmable andelectrically isolated outputs
• Series orparallel operation (CH1 and CH2)
• Simultaneous voltage and current display for all channels
• High accuracy, resolution andstability
• Low ripple andnoise
• Save/Recall up to 27 instrument settings
• High programming andreadback resolution
• High visibility VFD display
• Easy-to-use interface with numerical keypad, cursors, androtary knob
• Compact form factor (2U)
• SCPI-compliant remote protocols
• Over Voltage protection (OVP)and Over Temperature Protection
• Remote interface via USB (virtual com via TTL/USB adapter)
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1.2 Package Contents
Please inspect the instrument mechanically andelectrically upon receiving it.Unpack all items
from the shipping carton, and check for any obvious signs of physical damage that may have
occurred during transportation. Report any damage totheshipping agent immediately. Save the
original packing carton for possible future reshipment. Every power supply isshipped with the
following contents:
• 1 x 9129B Power Supply
• 1 x AC Power Cord
• 1 x Certificate of Calibration
• 1 x Test Report
• 1 x TTL to USB serial adapter IT-E132B
Verify that all items above areincluded inthe shipping container. Ifanything is missing, please
contact B&K Precision.
1.3 Product Dimensions
The 9129B power supply dimensions areapproximately 214.5 mm(8.44 in) x 88.2 mm (3.47 in)
x 376.6 mm (14.8268 in)(W xHxD).
Note: All dimensions in the figures below are measured in millimeters (mm).
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1.4 Rackmount Installation
The instrument can be installed in a standard 19-inch rack using the optional IT-E151 rackmount
kit. Below is animage ofa 9200 Series model installed with the IT-E151 rackmount kit.
Note: Remove the carrying handle andthe two plastic ears before mounting the instrument. To
remove the handle, grasp the handle by its sides, pulloutwards,androtate it until the
arrow onthe handle and the arrow onthe plastic ears are in opposite directions. Then
pull the handle outward. After removing the handle, you can use a screwdriver to
remove the two plastic ears.
To rackmount a single instrument, order rackmount kit IT-E151
To rackmount two instruments side-by-side, order rackmount kit IT-E151, the front cover
panel is not needed.
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1.5 Front Panel Overview
Figure 1 - Front Panel View
Front Panel Description
VFD display
Shift key
Local key
Power key
Numeric keys
Function keys
Cursor keys
Output terminals
Rotary knob
1
2
3
4
5
6
7
8
9
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1.6 Rear Panel Overview
Figure 2 - Rear Panel View
Rear Panel Description
Cooling fan
AC power input receptacle &fuse box
110/220 V Power Switch
RS-232 (TTL) interface
1
2
3
4
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1.7 Keypad Overview
Figure 3 - Keypad
Keypad Description
Shift key
Enables access to secondary functions (Labeled in blue)
Local key
Sets the instrument back to local mode.
Power key
Power on the instrument.
~ Numeric keypad
Enters numeric values for various parameters.
Vset /LVP button
Configures output voltage or sets the limit voltage protection point for the
power supply.
Iset / Menu button
Configures output current or allows access to thepower supply menu
settings.
Recall / Save button
Saves and recalls instrument settings.
Meter button
Switches from set value display to metered output value display.
Enter / Lock
Confirms setting or lock front keys.
Output
Controls output On/Off state of each channel of the power supply
Left/Right arrow keys
Adjusts cursor position to left or right or navigate through menu items.
Up/Down arrow keys
Used to select menu items or increase/decrease output voltage, output
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current or navigate through menu items.
Esc key
Cancel and return to previous menu.
1.8 Display Overview
Figure 4 - Display
Display Description
CV The power supply isin constant voltage mode
CC The power supply isin constant current mode
Indicates shift mode (for access tosecondary button functions)
Indicates remote mode
Indicates the channel currently selected
SEr Serial connection mode
PArA Parallel connection mode
TRA Enable tracking mode
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2Getting Started
Before connecting and powering up the instrument, please review and gothrough the
instructions inthis chapter.
2.1 Input Power and Fuse Requirements
Input Power
The supply hasa selectable AC input that accepts line voltage input within:
Voltage: 110 V (+/- 10 %) or 220 V (+/- 10 %)
Frequency: 47 Hz – 63 Hz
Before connecting toan AC outlet or external power source, be sure that the power switch is in
the OFF position and verify that the AC power cord,including the extension line,is compatible
with the rated voltage/current and that there issufficient circuit capacity for the power supply.
Once verified, connect thecable firmly.
The included AC power cord is safetycertified for this
instrument operating in rated range. To change a
cable or add an extension cable, be sure that it can
meet the required power ratings for this instrument.
Any misuse with wrong or unsafe cables will void the
warranty.
SHOCK HAZARD:
The power cord provides a chassis ground through a
third conductor. Verify that your power outlet is of the
three-conductor type with the correct pin connected
to earth ground.
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Fuse Requirements
An ACinput fuse is necessary when powering theinstrument. Below isa table of the fuse
required for all models operating with either 110 VAC or220 VAC input.
Table 1 - Fuse Requirements
Model
Fuse Specification (110 VAC)
Fuse Specification (220 VAC)
9129B
T6.3A 250V
T3.15A 250V
2.2 Line Voltage Selection
The power supplies can be selected tooperate with 110Vinput or220V input. To ensure that
your instrument is properly configured tooperate atthe desired ACline voltage, please follow
the steps below:
For safety, no power should be applied to the
instrument while changing line voltage operation.
Disconnect all cables connected to the instrument
before proceeding.
Step 1 - Check and/or Change Fuse
- Locate the fuse box next to the ACinput connector in the rear panel.
- With a small flat blade screwdriver, insert into the fuse box slit topull and slide out the fuse
box asindicated below.
- Check and replace fuse (if necessary) forthe desired line voltage operation (see Table 1).
Figure 5 - Fuse replacement
Fuse boxslit
Fuse box
Check/Remove Fuse
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