B&K Precision 9801 Instruction Manual

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Model: 9801

Programmable AC Power Source

USER MANUAL

Safety Summary

The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument.

Before applying power to this instrument:

• Read and understa nd the safety and opera ti onal informatio n in thi s m anual.

• Apply all the listed safety precautions.

• Verify that the volt a g e se l ector at the line power cord input is set to the correct line

voltage. Operating the instrument at an incorrect line voltage will void the warranty.

• Make all connections to the instrument before applying power.

• Do not operate the instrument in ways not specified by this manual or by B&K Precision.

Failure to comply with these precautions or with warnings elsewhere in this manual violates the safety standards of design, manufacture, and intended use of the instrument. B&K Precision assumes no liability for a customer’s failure to comply 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 may occur on electrical conductors associated with these category ratings. The category rating is a Roman numeral of I, II, III, or IV. This rating is also accompanied by a maximum voltage of the circuit to be tested, 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. Th e 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 at a standard wall outlet or similar sources. Example measurement envi ronmen ts are port a b l e tools and house hold appliance s.

Category III (CAT III): Measurement instruments whose measurement inputs are meant to be connected to the mains installation of a building. Examples are measurements inside a building's circuit breaker panel or the wiring of permanently-installed motors.

Category IV (CAT IV): Measurement instrume nts whos e measurement inputs are meant to be connected to the primary power entering a building or other outdoor wiring.

Do not use this instrument in an electrical environment with a higher category rating than what 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 to maintain the instrument's category rating. Failure to do so will lower the category rating of the measuring system.

Electrical Power

This instrument is intended to be powered from a CATEGORY II mains power environment. The mains power should be 110 V RMS or 220 V RMS. Use only the power cord supplied with the instrument and ensure it is appropriate for your country of use.

Ground the Instrument

To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical safety ground. This instrument is grounded 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 jack and mating plug of the power cable meet IEC safety standards.

Do not alter or defeat the ground connection. Without the safety gr ound connection, all accessible conductive parts (including control knobs) may provide an electric shock. Failure to use a properly-gr ounded approved ou tlet and the recommended three-conductor AC line power cable may result in injury or death.

Unless otherwise stated, a ground connection on the instrument's front or rear panel is for a reference of potential only and is not to be used as a safety ground.

Do not operate in an explosive or flammable atmosphere

Do not operate the instrument in the presence of flammable gases or vapors, fumes, or finelydivided particulate s.

The instrument is designed to be used in office-type indoor environments. Do not operate the instrument

• In the presence of noxious, corrosive, or flammable fumes, gases, vapors, chemicals, or finely-divided particulates.

• In relative humidity conditions outside the instrument's specifications.

• In environments where there is a danger of any liquid being spilled on the instrument or

where any liquid can condense on the instrument.

• In air temperatures exceeding the specified operating temperatures.

• In atmospheric pressures outside the specified altitude limits or where 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 is intended to be used in an indoor pollution degree 2 environment. The operati ng t e mpera ture r a nge is 0 °C to 40 °C and the op erating hum idity range is up to 80% relative humidity with no condensation allowed. Measurements made by this instrument may be outside specifications if the instrument is used 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 ele c tr i c fi elds, or strong magnetic fie lds.

Do not operate instrument if damaged

If the instrument is damaged, appears to be damaged, or if any liquid, chemical, or other material get s on or in side the instrument, remove the instrument's power cord, remove the instrument from service, label it as not to be operated, and return the instrument to B&K Precision for repair. Notify B&K Precision of the nature of any contamination of the instrument.

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Clean the instrument only as instructed

Do not clean the instrument, its switches, or its terminals 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 is not authorized for use in contact with the human body or for use as a component in a life-support device or system.

Do not touch live circuits

Instrument cover s m ust not be removed by operating personnel. Component replacement and internal adjustments must be made 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, and verify there are no hazardous voltages present on any conductors by measurements with a properly-operating voltage-sensing device before touching any internal parts. Verify the voltage-sensing device is working properly before and after making the measurements by testing with known-operating voltage sources and test for both DC and AC voltages. Do not attempt any service or adjustment unless another person capable of rendering first aid and resuscitation is present. Do not insert any object into an instrument's ventilation openings or other openings.

Hazardous voltages may be present in unexpected 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 of the instrument's fuse requirements 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 or on the back of the instrument. Failure to do so may damage the instrument, lead to a safety hazard, or cause a fire. Failure to use the specified fuses will void the warranty.

Servicing

Do not substitute parts that are not approved by B&K Precision or modify this instrument. Return the instrument to B&K Precision for service and repair to ensure that safety and performance features are maintained.

Cooling fans

This instrument contains one or more cooling fans. For continued safe operation of the instrument, the air inlet and exhaust openings for these fans must not be blocked nor must accumulated dust or other debris be allowed to reduce air flow. Maintain at least 25 mm clearance around the sides of the 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. Do not continue to operate the instrument if you cannot verify the fan is operating (note some fans may have intermittent duty cycles). Do not insert any object into the fan's inlet or outlet.

Use correctly sized wires

To connect a load to the power supply, use a wire diameter large enough to handle the maximum continuous output short-circuit current of the power supply without the wire overheating.

For continued safe use of the instrument

• Do not place heavy objects on the instrument.

• Do not obstruct cooling air flow to the instrument.

• 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 is connected to a circuit being tested.

This product is subject to Directive 2002/96/EC of the

Compliance Statements

Disposal of Old Electrical & Electronic Equip m e nt (A pplicable in the European Union and other European countries w ith separate collection systems)

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 di sposition of this product and otherwise observe all applicable requirements.

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CE Declaration of Conformity

The power supply meets the requirements of 2006/95/EC Low Voltage Directive and 2004/108/EC Electromagnetic Compatibility Directive with th e 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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Refer to the user manual for warning information damage to instrument.

On (Supply). This is the AC mains instrument.

instrument.

Safety Symbols

to avoid hazard or personal injury and prevent

Electric Shock hazard

connect/disconnect swi tch on the front of the

Off (Supply). This is the AC mains connect/disconnect swi tch on the front of the

DC current

Alternating curre nt

Fuse Symbol

Chassis (earth ground) symbol

Ground terminal

Protective earth ground

CAUTION indicates a hazardous situation which, if not avoided, will result in minor or mode rate 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 in death or serious injury.

Table of Contents

Safety Summary ................................................................................................... i

Compliance Statements ............................................................................................................. vii

Safety Symbo ls ............................................................................................................................ ix

1 General Information ..................................................................................... 1

1.1 Product Overview ............................................................................................................. 1

1.2 Package Contents ............................................................................................................. 1

1.3 Product Dimensions ......................................................................................................... 2

1.4 Front Panel Overview ....................................................................................................... 4

Front Panel Description ........................................................................................................... 4

1.5 Rear Panel Overview ........................................................................................................ 5

Rear Panel Description ............................................................................................................ 5

1.6 Display Overview .............................................................................................................. 6

Display Description .................................................................................................................. 6

2 Getting Started ............................................................................................. 7

2.1 Input Power and Fuse Requirements ............................................................................... 7

Input Power ............................................................................................................................. 7

Fuse Requirements .................................................................................................................. 8

Fuse Replacement ................................................................................................................... 8

2.2 Output Connections ......................................................................................................... 9

2.3 Preliminary Check ........................................................................................................... 11

Self-test Errors ....................................................................................................................... 12

Output Check ......................................................................................................................... 12

Check Model and Firmware Version ..................................................................................... 12

3 Front Panel Operatio n ................................................................................ 14

3.1 Menu Options ................................................................................................................. 14

How to Access the Menu ....................................................................................................... 14

3.2 Configure Voltage and Frequency Output ...................................................................... 15

Setting Voltage ...................................................................................................................... 15

Output Range ........................................................................................................................ 16

Setting Frequency .................................................................................................................. 16

Setting Phase Angle .............................................................................................................. 16

3.3 SYSTEM Menu ................................................................................................................ 17

Restore Factory Default Settings ........................................................................................... 17

Configure Power-On Settings ................................................................................................ 19

Configure Power-Out State ................................................................................................... 19

Enable/Disable Key Sound ..................................................................................................... 19

Configure Trigger Source ....................................................................................................... 19

Communication Setup ........................................................................................................... 20

Save/Recall Instrument Settings ........................................................................................... 22

3.4 CONFIG Menu ................................................................................................................. 23

Voltage Limits ........................................................................................................................ 23

Frequency Limits ................................................................................................................... 24

Current Protection ................................................................................................................. 24

External BNC ......................................................................................................................... 25

3.5 Dimmer Output Simulation ............................................................................................ 27

3.6 List Mode ........................................................................................................................ 28

Configure List Setting ............................................................................................................ 28

Edit List File ........................................................................................................................... 29

Recall and Run Program ........................................................................................................ 31

Power Line Disturbance Simulation (PLD) ............................................................................. 32

3.7 Sweep Mode ................................................................................................................... 34

Edit Sweep File ...................................................................................................................... 35

Recall and Run Sweep ........................................................................................................... 35

3.8 Key Lock .......................................................................................................................... 36

4 Remote Operation ...................................................................................... 37

4.1 Interface Connectio n ...................................................................................................... 37

RS-232 ................................................................................................................................... 37

USBTMC ................................................................................................................................. 37

LAN ........................................................................................................................................ 37

4.2 Remote Commands ........................................................................................................ 38

5 Trouble shooting Guide ............................................................................... 39

General .................................................................................................................................. 39

Remote Control ..................................................................................................................... 39

6 Specifications ............................................................................................. 40

Calibration ................................................................................................................................. 41

SERVICE INFORMATION ..................................................................................... 42

LIMITED THREE-YEAR WARRANTY ..................................................................... 43

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1 General Information

1.1 Product Overview

The B&K Precision model 9801 is a high performance AC power source with the capability of producing up to 300 VAC at a maximum power output of 300 VA. The instrument is equipped with powerful featu re s such a s l ist mo d e , sweep mode, power line disturbance (PLD) simulation, and dimmer output simulation. Other feature s include an easy-to-read VFD display, userfriendly controls and a numeric keypad that allows for easy configurations from the front panel. Standard USB, RS232, and LAN interfaces included on the rear panel provide flexibility for remote operation of the power supply.

Features:

• High accuracy and resolution

• Compact, high dens i ty 2U rackmount form factor

• Programmable frequency (45 Hz – 500 Hz)

• Standard USBTMC, RS232, and LAN

• Power line disturbance simulation

• Dimmer output simulation

• Adjustable phase angle

• List mode to generate surge, sag and other line disturbance simulations

• OVP, OPP, OCP, and OTP protection features

1.2 Package Contents

Please inspect the instrument mechanically and electrically upon receiving it. Un pack all items from the shipping carton, and check for any obvious signs of physical damage that may have occurred during transportation. Report any damage to the shipping agent immediately. Save the original packing carton for possible future reshipment. Every power supply is shipped with the follo wing contents:

• 1 x 9801 AC Power Source

• 1 x User Manual

• 1 x AC Power Cord

• 1 x Certificate of Calibration

• 1 x Test Report

Verify that all items above are included in the shipping container. If anything is missing, please contact B&K Precision.

1.3 Product Dimensions

The 9801 power supply is designed to fit in a standard 19-inch half rackmount and is of 2U si ze.

Note: All dimensions in the figures below are measured in millimeters (mm).

Figure 1.1 – Front Panel View

Figure 1.2 - Rear Panel View

Figure 1.3 – Side View

Numeric keypad

9: Dimmer – Configure the di mm er settings

Local button Set the instrument back to local mode.

Shift button Enables access to secondary functions o f some buttons.

Esc button

Used to exit menu settings.

VOLT / High / Auto button

Set the output voltage or range between high and auto.

FREQ / Phase button

Set the output fre que ncy or phase

Recall

Recall / Save button

Used to save or recall instrument settings.

1 2 3 5 4

1.4 Front Panel Overview

Front Panel Description

VFD display Power On/Off switch

7: Sweep – Configure and enable the sweep settings 8: List – Configure and enable the l ist function

AC output socket Rotary knob

Figure 1.4 – Front Panel

Select / Menu button

power(in Volt-ampere)/peak current(Apk) display or access t he m ai n m e nu.

EnterEnter

Enter / Trigger button

Used to confirm setting/parameter changes or to send a trigger manually.

On/Off

On/Off / Lock button

Controls the output state or locks the fro nt panel button.

BNC Interface Terminal

Used for external trigger and other functionality (see Exte r nal BNC)

3 4 6

L N

2 3 4 5 6 7 8

Toggles between output power(in Watts)/power factor(PF) or output

Navigation arrow keys

1.5 Rear Panel Overview

Figure 1.5 - Rear Panel

Rear Panel Description

LAN Inte rface RS-232 Interface USB Interface

AC Output Terminal Cooling Fans AC Input Receptacle Fuse Box

300.0V

0.0mA

0.00W

OFF Rmt SQR Error Trig Prot Auto * Shift

PF = 0.000

1 2 3

500

0.1 s

Figure 1.6 – Display Overview

1 2 3

1.6 Display Overview

Display Description

Programmed/Measured Voltage Measured Power Output Settings Display Measured Current Output ON timer Programmed Frequency

OFF Indicates output is disabled Rmt Indicates remote m ode SQR Indicates service request Error Indicates an error has occurred Trig Indicates waiting for trigger (for list operation) Prot Indicates protection trip for over voltage or over temperature Auto Indicates power supply is in auto range * Indicates dimmer function is enabled Shift Indicates shift mode (for access t o s e condary button functions) Lock Indicates key lock is enabled

voltage. After changing the line voltage setting, ensure

types for the selected line voltage before applying line

110 or 220 selector

110

Bottom of the unit

2 Getting Started

Before connecting and powering up the instrument, please review the instructions in this chapter.

2.1 Input Power and Fuse Requirements

Input Power

This instrument can operate from an AC source that meet the following requirements:: AC Voltage: 110 V ± 10% or 220 V ± 10 %

Frequency: 47 Hz – 63 Hz Use the line voltage selector on the bot tom of the unit to set the input voltage of the

instrument between 110 V and 220 V.

Figure 2.1 – Line Voltage Selector Location

Disconnect all cables including the power cord from the instrument when changing the instrument's line

the instrument has fuses of the proper ratings and

power.

SHOCK HAZARD

third conductor. Verify that your power outlet is of the

to earth ground to prevent electric shock.

warranty.

Model

Fuse Specification (110 V)

Fuse Specification (220 V)

9801

T 10 A, 250 V

T 6.3 A, 250 V

The power cord provides a chassis ground through a

three-conductor type with the correct pin connected

Before connecting to an 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 is suff i c i ent ci rcuit capacity for the power supply. Once verified, connect the cable firmly.

The included AC power cord is safety certified for this instrument operating in rate d 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

Fuse Requirements

An AC input fuse is necessary when powering the instrument. R efer to the table below for the fuse requirements.

Table 2.1 – AC Input Fuse Table

Fuse Replacement

Follow the steps below to replace or c heck the fuse.

1. Locate the fuse box in the rear panel, beneath the AC input recep tacle.

2. With a small flat blade screwdriver, insert the blade into the fuse box slit to pull and slide out the fuse box as indicated below.

3. Pull out the g la s s tube fuse inside to check and repla ce (if necessary) for the desired line voltage operation.

4. Insert the fuse capsule in the same orientation and location.

5. The fuse capsule will now be locked and secured.

current.

SHOCK HAZARD

connections have no accessible live parts. Ensure that

Fuse box slit

Fuse box

Check/Remove Fuse

Figure 2.2 – Fuse Box

2.2 Output Connections

The main front panel is equipped with a universal AC outlet, which accepts all standard types of common AC power plugs. This AC output is isolated from the AC power input of the instrument.

Figure 2.3 – Universal AC Output Socket

Before connecting wires to the output terminals, turn OFF the power supply to avoid damage to the instrument and the device under test (DUT). For safety, load wires must have a wire gauge size large enough to prevent overheating when the power supply operates at maximum short circuit output

the load wiring ins ul ation rating is great er than to the maximum output voltage of the power supply.

supply operates at maximum short circuit output

China

N L

America, Canada

Europe

England

L N

The following types of AC power plugs are accepted.

Figure 2.4 – Region Specific Power Cord Types

This unit also features a rear AC output terminal block which accepts a wire connection. This terminal block is also isolated fro m the AC power input of the instrument.

Figure 2.5 – Rear Panel AC Output Terminal

current.

SHOCK HAZARD

maximum output voltage of the power supply.

BIOS Ver 1.10

System Selftest . . . .

. .

Hazardous voltages may exist at the outputs and the load connections when using this power supply. To protect personnel against accidental contact with hazardous voltages, ensure that the load and its connections have no accessible live parts. Ensure that the load wiring insulation rating is greater than to the

2.3 Preliminary Check

Complete the following steps to verify that the power supply is ready for use.

1. Verify AC Input Voltage Verify and check to make sure proper AC voltages are available to power the instrument. The AC voltage range must meet the acceptable specification as explained in “2.1 Input Power and Fuse Requirements”.

2. Connect Power and Self-Test Connect AC power cord to the A C rec eptacle in the rear panel and pres s the power switch to the |(ON) position to turn ON the instrument. It will display the BIOS version then run through a self-test procedure with the screen shown in below:

If the EEPROM was damaged or the latest operation data in the EEPROM was lost, the VFD will highlight the “Error” indicator. Accessing the “Info” menu will give detailed error information. If self-test passes, VFD will display:

EnterEnter

On/Off

300.0V

0.0mA

0.00W

OFF Auto

PF = 0.000

500

0.1 s

Self-test Errors

If any erro rs occur during power up, please contact B&K Precision.

Output Check

Voltage and Frequency Check

Follow the steps below to chec k basic voltage output with no load connected.

1. Turn on the AC power source. The display will show the OFF annunc i ato r above the voltage display.

2. Using the numeric keypad or the rotary knob, enter a voltage value. The voltage display will show the value you entered. If entering with the numeric keypad, press

first, then enter the value and pr ess

3. Press the button and set the frequenc y using the numeric keypad or the rotar y knob. If entering with the numeric keypad, make sure to press

value.

4. Enable the output by pressing annunciator will disappear and the output timer will begin counting.

5. Once the output is ON, the voltage display will show the measured voltage at the output, which may fluctuate slightly from the voltage value entered in the previous step.

6. (Optional) You may also verify the output voltage and frequency by connecting the (L) and (N) terminals on the rear panel to an external multimeter or an oscilloscope. Under normal operation, the measured value will be equal to or within the entered voltage and frequency value.

7. Ensure that the voltage can be adjusted from zero to the full rated output of the unit and verify the full frequency range is within specifications.

after entering a

, and the button will be illuminated. The OFF

Check Model and Firmware Version

The model and firmware version ca n be verified by using the *IDN? query remote command. It can also be found from w ithi n the menu sy stem by f ol lowing thes e steps:

EnterEnter

PRODUCT INFO:

Model: 9801 Ver: 0.02 – 0.01

1. Press (Shift) and press (Menu) to enter the menu system.

2. Press the arrow two times until INFO is blinking. Press will show the following screen:

3. The model is shown above as 9801, and the firmware version is shown as 0.02 – 0.01.

4. Press to exit the menu and return to the normal display.

, and the display

SYSTEM

Init

Reset power supply settings to factory default values

Power-On

Configure power-on parameters

Power-Out

Configure power-on output state

Buzzer

Enable/Disable key sound

Trigger

Configure Trigger

Communication

Select communication interface

CONFIG

Volt-Min

Set minimum voltage limits

Volt-Max

Set maximum voltage limits

Freq-Min

Set minimum frequency limits

Freq-Max

Set maximum frequency limits

Irms-Protect

Configures current RMS protection setting

BNC-Set

Select external BNC connection setup

Ipeak-Protect

Configures current peak pr otection point

Dimmer

Configures dimmer outp ut fu nction

List-Set

Configure list start trigger

INFO

Error Info

Displays error information (Shown only when an error has occurred)

Product Info

Displays model and firmware version

Product SN

Displays serial number

Record Info

Displays instrument information

EnterEnter

3 Front Panel Operation

3.1 Menu Options

All settings and parameters can be configured from the menu of the power supply. To access the menu, press (Shift) and press (Menu) .

The menu is divided into the following sections and organized as follows:

How to Access the Menu

Before using the instrument, it is important to be familiarized with its menu structure and learn how to view or change sett in g s and parameters. Follow the steps below to guide you in selecting menu options.

1. From the normal display, press (Shift) and press (Menu) to enter the menu.

2. The selected item will be blinking. Use keys to move through the menu selections.

3. When the desired me nu section is blink ing , pr es s

to access its menu settings.

EnterEnter

SYSTEM

Init Power-On Power-On

4. Below is the display when SYSTEM is selected.

5. The selected item will be blinking. Use keys to move through the menu items. When there is a on the right side of the display, that means there are more menu items available to select from. Similarly, a will appear on the left side of the display

when there are menu items to the left. Use the keys accordingly to s el ect the desired menu item.

6. Press

7. There may be parameters or options to select within each menu item. Follow the same instructions as described in the previous steps to select them. To save changes to a

setting, press

to access the selected menu item.

8. To exit the menu at any time, press twice.

3.2 Configure Voltage and Frequency Output

The voltage, output range, freque ncy, and phase can be set from the front panel.

Setting Voltage

The user has the ability to set the voltage within the range of 0.0 V to 300.0 V. When the

button is pressed, the button will illuminate. This puts the instrument into voltage set

mode. There are three ways to set the output voltage through the front pan el.

Follow the steps below to set th e ou tput voltage:

1. From the normal front panel display, users can use the rotary knob, navigation arrow keys or the numeric keypad to enter the setting voltage.

2. If entering using the rotary knob or navigation arrow keys, press first so that the cursor selects the voltage display. Then use the keys to change the cursor position and the rotary knob or the and keys to increase or decrease the voltage

setting value.

Then press

to set the voltage.

3. If entering using num eric keypad, pres s first so that the cursor selects the voltage display. The n, enter the voltage value using the numeric keypad and press

to set the voltage.

Note: During the ra nge is switched, the instrument will disable the output to protect the instrument and DUT (device under test) from potential damage.

EnterEnter

Output Range

The AC source will allow the user to select between High range and Auto range. For example, the voltage, current and apparent power at the High range is 300V/1.5A/300VA; the voltage, current and apparent power at the Low range is 150V/3A/300VA. The user can

choose the range according to their s pecific requirements. When Au to range is chosen, the instrument will switch between high range and low range automatically. To change between the two ranges, do the following:

Press (Shift) and then press (High/Auto) to switch between High range and

Auto range.

When High range is chosen, press the (Shift) and then (High/Auto) to switch to Auto range. The indicator “Auto” on the VFD display will be enabled. No indicator will show on the VFD display for the high range.

Setting Frequency

The user has the ability to set the frequency within the range of 45.0 Hz to 500 Hz. When the

button is pressed, the button will illuminate. This puts the i n stru ment into frequency set

mode. There are three ways to set the output frequency t hrough the front panel.

Follow the steps below to set the frequency of the AC signal:

1. From the front panel, users can use the rotary knob, navigation arrow keys or the numeric keypad to enter the frequency setting.

2. If entering using the rotary knob or navigation arrow keys, press the cursor selects the frequency display. Then use the keys to change the cursor position and the rotary knob or the

frequency setting v a lue.

3. If entering using num eric keypad, pres s first so that the cursor selects the frequency displ ay. Then, enter the frequency value using the numeric keypad and press

to set the frequency.

Then press

and keys to increase or de crease the

to set the frequency.

first so that

Setting Phase Angle

The AC output’s start and stop phase angle can be adjusted within the range of 0.0° to 360.0°. This function is wi d ely used for startup and shutdown current impact tests and various rectifier performance tests.

When the (Shift)

and (Phase) button are pressed, the following scree n will be shown.

EnterEnter

settings back to their default values.

300.0V

0.0mA

Start

OFF Auto

Phase = 90.0°

50.0

0.1 s

300.0V

0.0mA

Stop

OFF Auto

Phase = 0.0°

50.0

0.1 s

Use the numeric keys to set the start phase angle and press setting. The following screen will be shown next.

to confirm the start phase

Use the numeric keys to set the stop phase angle and press setting.

to confirm the stop phase

3.3 SYSTEM Menu

All setup procedures and settings explained in this section can be accessed from the SYSTEM menu. To access this menu, press (Shift) and press (Menu) . When SYSTEM is

blinking, press

Restore Factory Default Settings

All instrument settings can be reset back to their factory default values by doing the following:

Restoring the instrument to factory default will change all current instrument

EnterEnter

Voltage

0.0 V

Frequency

50.0 Hz

Start Phase

0.0

Stop Phase

0.0

Range

Auto

Power-Out Setting

Off

Power-On Setting

Sav0

Key Sound

Trigger Source

Manual

Communication Interface

RS232

RS232 Settings

9600, 8, N, 1

Gateway: 192.168.0.1

Socke t P ort: 30000

Volt-Min

0.0 V

Volt-Max

300.0 V

Freq-Min

45.0 Hz

Freq-Max

500.0 Hz

Irms-Protect

3.000 A, Delay (max RMS current)

BNC-Set

I-Trigger

Ipeak-Protect

12.00 A, Delay (max peak current)

Dimmer Setting

Off

List-Set

On/Off

Output

Disabled

1. From the SYSTEM menu, select Init and press

2. There are two options:

Esc – This option will exit the menu. Enter – The instrument will return to the main display and all settings are now restored

back to factory default. The table be lo w lists some of the factory default settings.

Table 3.1 - Factory Default Settings

LAN Settings

IP: 192.168.0.125 Mask: 255.255.255.0

EnterEnter

Configure Power-On Settings

The initial power-on settings of the power supply can be configured to either the default settings or the settings stored in data bank 0. Follow the steps below to configure thi s option:

1. From the SYSTEM menu, select Power-On and press

2. There are two options:

Rst – Factory Default settings. Sav0(Def) – Settings stored in data bank 0 (See Save Settings).

3. Select the settings you want during power up, and press

4. To exit the menu at any time, press twice.

to save changes.

Configure Power-Out State

The output state of the power supp l y can be configured to either off or the last state of the output before power down. Follow the steps below to configure this option:

1. From the SYSTEM menu, select Power-Out and press

2. There are two options:

Off(Def) – Factory Default. Last – Output state before last power down.

3. To exit the menu at any time, press twice.

Enable/Disable Key Sound

The instrument initially has key sound enabled from factory. To disable or enable the key sound, follow the steps below:

1. From the SYSTEM menu, select Buzzer and press

2. Select between the two options:

On(Def) – Enable key sound Off – Disable key sound

3. Select the desired option and press

4. To exit the menu at any time, press twice.

to save the change.

Configure Trigger Source

The trigger function is used to initiate a program in list mode. The tri gger source can be set so

EnterEnter

RS232

9600 , 8 , N , 1

that users can send a trigger from the front panel or through a remote command via remote interface. Follow the below steps to confi g ure the trigger mode:

1. From the SYSTEM menu, browse and select Trigger and press

2. There are two options: Manual(Def) – Manual trigger. Front panel trigger button is used to send a trigger

(press (Shift) and (Trigger)

Bus – Bus trigger. Remote command *TRG is used to send a trigger. Extern – External TTL trigger (via the rear panel BNC connector).

3. To exit the menu at any time, press twice.

to send trigger).

Communication Setup

There are several interfaces available for remote communication: USBTMC, RS-232, and LAN. This section will describe how to setup all the supported interfaces.

Note: The RMT indicator will appear on display when the power supply is successfully connected to a PC remotely through any remote interface. Keys on the front panel will be locked until the instrument is in LOCAL mode. To return to LOCAL mode from the front panel,

press the (Local) mode.

RS-232

Follow the steps below to configure the power supply for RS-232 operation:

1. From the SYSTEM menu, browse and select Communication and press

key. The RMT indicator will disappear when the instrument is in LOCAL

2. Select RS-232(Def) and press following display will be shown:

3. 9600 is the baudrate; 8 is the data bits; N is the parity; 1 is the stop bit.

4. Use to select between each serial settings, and use to change the settings.

5. Below lists the options that can be changed for each setting:

Baudrate: 4800, 9600, 19200, 38400, 57600, 115200 Data bits: 8

to set to RS-232 for remote communication. The

Note: The default is 9600, 8, N, 1

EnterEnter

Note: Users who have LabVIEW™ or NI-VISA installed should have this driver in

EnterEnter

LAN

Gateway = 192.168.0.1

Parity: N (None), E (Even), O (Odd) Stop bit: 1, 2

6. All serial settings must match with the settings configured on the PC in order for communication to link successfully.

USBTMC

A USB Type A to Type B cable (i.e. USB printer cable) is required to connect the USB port in the rear panel to a PC. Follow the steps below to setup the power supply for remote communication.

1. From the SYSTEM menu, select Communication and press

2. Select USB and press

3. Install the USB driver on to your PC. For Windows® 7 users, this may install automatically. For other users, visit www.bkprecision.com and navigate to the product’s page to download the driver or for more information.

their system. In this case, driver download is not required.

LAN (Ethernet)

The LAN interface supports a Socket connection.

1. From the SYSTEM menu, select Communication and press

2. Select LAN and press display will be shown:

to set to USBTMC for remote communication.

to set to LAN for remote communication. The following

3. 192.168.0.1 is the Gateway IP address

4. Use the settings. Press

5. Below list th e o ptions that can be changed for each setting:

Gateway: 000.000.000.000 IP: 000.000.000.000 Mask: 000.000.000.000

to select between each LAN setting, and use the numeric keypad to change

to confirm setting changes

Recall

EnterEnter

Recall

Note: When in Recall mode, users can recall settings from different locations

in location 5 on the fly.

80.0V

0.0mA

Save Data to Bank = 0 0.0s

OFF

50.0

Socket Port: XXXXX

6. All LAN settings must match with the settings configured on the PC in order for communication to link successfully.

7. Press several times to exit the menu.

Save/Recall Instrument Settings

The instrument can save up to 10 instrument settings in non-volatile memory. Memory is allocated in 10 data banks to store settings (0 to 9).

Save Settings

1. Set up all the instrument settings that you want to save.

2. Then, press (Shift)

3. Use the rotary knob or the nume ric keypad to enter the memory locatio n i n whi c h to store current instrument settings. Select between 0 – 9. Press

selection location.

4. If it saved successfully, there will be a message on display: Save Success!

Recall Settings

1. Press disappear. This indicates Recall mode. Instrument settings can only be recalled when the instrument enters this mode.

2. Use the keypad to enter the memory location you want to recall. Enter between 0 to 9.

3. Once entered, the sav e d s e ttings at the location will be immediately recalled.

. Notice the button will be illuminated and the cursor on the display will

and (Save)

. The display will show the following:

to save to the

without having to press additional keys each time. For example, you can press 1 to recall settings in loc ation one, and then press 5 to recall settings

Recall

EnterEnter

CONFIG

Volt-Min Volt-Max

4. To exit Recall mode, pre ss the display will reappear, indicating that the instrument is no longer in Recall mode.

and it will no longer be illuminated. The cursor on

3.4 CONFIG Menu

All setup procedures and settings explained in this section can be accessed from the CONFIG menu. To access this menu, press (Shift) and pre s s (Menu) . Select CONFIG, then

press

. The following screen will be shown.

Voltage Limits

The power supply allows users to define the voltage minimum and voltage maximum limits. This feature will prevent the user from entering a voltage setting outside of these limits. For example, if Volt-Min is set for 5 V and Volt-Max is set to 15 V, the unit will limit the settable voltage range to these limit settings.

Minimum Voltage Limit

Follow the steps below to configure the Volt-Min setting:

1. From the CONFIG menu, browse and select Volt-Min and pre s s

2. On the following screen, enter a voltage setting between 0.0 V to 300.0 V. Then press

to confirm. Please note, this setting will set the minimum (lower) voltage limit.

3. To exit the menu at any time, press twice.

Maximum Voltage Limit

Follow the steps below to configure the Volt-Max setting:

1. From the CONFIG menu, browse and select Volt-Max and press

2. On the following screen, enter a voltage setting between 0.0 V to 300.0 V. Then press

to confirm. Please note, this setting will set the maximum (upper) voltage limit.

3. To exit the menu at any time, press twice.

EnterEnter

Frequency Limits

The power supply allows for users to define the frequency minimum and frequency maximum limits. This feature limits the user from entering a frequency setting outside of these limits. For example, if Freq-Min is set for 50 Hz and Freq-Max is set for 60 Hz, the unit will limit the settable frequency range to these limit settings.

Minimum Frequency Limit

Follow the steps below to configure the Freq-Min setting:

1. From t he CONFIG menu, browse and select Freq-Min and press

2. On the following screen, enter a frequency setting between 45.0 Hz to 500.0 Hz. Then press

to confirm. Please note, this setting will set the minimum (lower)

frequency limit.

3. To exit the menu at any time, press

twice.

Maximum Frequency Limit

Follow the steps below to configure the Freq-Max setting:

1. From the CONFIG menu, browse and select Freq-Max and press

2. On the following screen, enter a frequency setting between 45.0 Hz to 500.0 Hz. Then press

to confirm. Please note, this setting will set the maximum (upper)

frequency limit.

3. To exit the menu at any time, press twice.

Current Protection

The power supply features RMS and peak current protection. When the RMS protection current is set, the unit will monitor the RMS continuous current and will shut off the output if the load continuously exceeds the set current. When the peak protection current is set, the unit will monitor the peak current so that it will shut off the output if the load exceeds the set current briefly. A one second protection delay can be selected to al lo w the instrument to outpu t current exceeding the protection limit momentarily without tripping the protection function and shutting off the output.

EnterEnter

Current (RMS) Protection Point

Follow the steps below to configure the Irm-Protect setting:

1. From the CONFIG menu, select Irms-Protect and press

2. On the following screen, enter a frequency setting between 0.000 A to max current of the unit. Then press

3. Then choose between Immediate or Delayed and press

to confirm.

to confirm. Immediate shutoff will shut off the output as soon as a continuous current exceeds the current setting. Delayed shutoff will shut off the output with about a 1 second delay when the continuous current exceeds the current setting.

4. To exit the menu at any time, press twice.

Current (Peak) Protection Point

Follow the steps below to configure the Freq-Max setting:

1. From the CONFIG menu, select Ipeak-Protect and press

2. On the following screen, enter a frequency setting between 0.000 A to max current of the unit. Then press

3. Then choose between Immediate or Delayed and press

to confirm.

to confirm. Immediate shutoff will shut off the output as soon as any current spike exceeds the current setting. Delayed shutoff will shut off the output with about a 1 second delay when any current spike exceeds the current setting.

4. To exit the menu at any time, press twice.

External BNC

The power supply features a BNC connector that can be co n fi g ured to be used as an external trigger, to enable or disable the main output, AC phase synchronization, or to output the state of the main output. The BNC has a constant 5V DC signal with a pull-up resistor internally.

Follow the steps below to configure the BNC port setting:

1. From the CONFIG menu, browse and select BNC-Set and press

2. On the following screen, select between I-Trigger, I-Ri, O-Sync, or O-On. Then press to confirm.

- I-Trigger: Selecting this option will configure the BNC port as an input trigger to start or stop a list.

Note: In order to externally trigger a list, List-Set option in the CONFIG menu must be set to Trigger. See “Configure L i st Setting” for details.

By default, the BNC port has an open-circuit voltage of 5 VDC. A trigger is registered when there is a l ogic level change fed into the BNC. For example, a

On/Off

ternal BNC to control the output state, ensure

On/Off

will turn off.

trigger can be registered when shorting the BNC port as shown in Figure 3.3. Removing the short will also cause a trigger to be registered.

- I-Ri: Selecting this option will configure the BNC port as an input to control the On/Off state of the main AC output. It can be used as an emergency soft output switch to quickly conf i g ure the output to 0 V, 0 A. To control the output, follow the steps below.

1. Press

to turn ON the main AC output. The green backlight

should be illuminated.

2. To keep the output turned ON, leave the BNC port open. To turn the output OFF, short the BNC port. Refer to the diagram below.

Figure 3.1 - Rear Panel BNC Output Control

The External BNC port is used as a soft output control. However, it does not disable the main AC output control, which can be switched by pressing the

button. Thus, when no t using the ex that

is pressed to disable the output. The On/Off button’s backlight LED

- O-Sync: Selecting this option will configure the BNC port as a sync output signal, which will output a 5V TTL logic signal that is synchronized with the main output.

Note: As output frequency increases, there may be an increa s e of the sync offset (< 50 µs max.) between the main output and the sync output.

- O-On: Selecting this option will configure the BNC port as an output to monit o r the state of the AC output. A 5 V TTL logic high signal means the output is ON. A 0 V TTL logic low signa l means the outp ut is OFF.

3. To exit the BNC port setting menu at any time, press twice.

EnterEnter

0°

90°

180°

270°

360°

0°

90°

135°

315°

360°

Leading Edge Dimming at 90°

Trailing Edge Dimming at 45°

90°

45°

Figure 3.2 – Leading and Trailing Edge Dimming

3.5 Dimmer Output S im ulation

The power supply features a dimmer output simulation function that allows for users to cut off part of the mains voltage to vary th e RMS voltage fed to the load under test, sometimes referred to as phase cutting. The range for the phase adjustment is from 0.0 – 180.0 °. This function also gives two options to cut off the main output voltage by either the beginning of the sine wave or at the tail end of the sine wave. Cutting off the beginning of the sine wave is called leading edge dimming and cutting off the end of the sine wave is called the trailing edge dimming. Below is an illustration of a leading and trailing edge dimmer:

The dimmer featur e can be used for many t est applications suc h as motor control (fan speed control, etc.) and lighting (LEDs, incandescent, etc.).

Follow the steps below to configure the dimmer function setting:

1. From the CONFIG menu, browse and select Dimmer and press

2. On the following screen, select between LeadingEdge, TrailingEdge, or Off. Then press to confirm.

- LeadingEdge – Enables the dimmer function with leading edge selected. To change the phase angle, see the instructions below.

- TrailingEdge – Enables the dimmer function with trailing edge selected. To change the phase angle, see the instructions below.

- Off – Disables the dimmer function.

3. To exit the menu at any time, press twice. Note: If the dimmer function is enabled, a “*” indicator will be shown on the VFD display.

Follow the steps below to select and change the phase for dimmer mode:

1. Press (Shift) and press “*Dimmer” (“9”).

2. On the following screen, enter a dimmer angle set ti ng between 0.0° – 180.0°, using either the rotary knob or numeric keypad. Then press

to set.

Note: It is recommended that the Trigger Source be configured prior to setting up the

prior to setting up the configura t ions.

Note: At the start of a list program, there is a 50 ms delay in which the powe r supply will

of the list.

On/Off

3.6 List Mode

The power supply has a list mode feature that allows storing programmed sequences into internal non-volatile memory and recalling and running them per configured parameters. A total of 100 steps can be configured for each sequence, and a total of 10 sequences are available for storage. With List mode enabled, the AC waveform sequences with various ranges can be generated. The power line disturbance (PLD) waveforms may also be added, as required, to simulate fluctuation of network voltages and evaluate the result of a unit under such situation.

There are three steps to se t up for programming and r unning a list program (in order):

1. Configure List setting

2. Edit List (Program) File

3. Recall and Run Program

The following sections will go into the details of setting up all thr ee.

configurations. Additionally, the output of the power supply must be disabled

output 0 V before it begins outputting according to the parameters in the first step

Configure List Setting

In list mode, users are able to trigger/initiate a list using various sources such as, manual trigger (front panel*), bus line trigger, or external BNC**. Please see the Configure Trigger Source section for details on how to select a trigger source.

*There are two manual trigger options to start a list, see below for more details. **See the “External BNC” section for details on how to conf i g ure .

List-Set

Users have the option to start a list program by simply pressing the trigger signal to the unit.

Follow the steps below to configure this setting:

button or sending a

EnterEnter

Parameter

Operation Description

Input

Step Count

Sets the numbe r steps in the list

1 – 100

Sets the number of ti mes to repeat

the list

Voltage Setting

Sets the step’s voltage

0.0 V – 300.0 V

Frequency Setting

Sets the step’s frequency

45.0 Hz – 500 Hz

Slope

Sets the slope time to the next step

0.0 s – 999.9 s

Dwell Units

Sets the unit for the step widt h

Second, Minute, Hour

Dwell Time

(step width)

Sets the dwell time/step width

0.0 – 999.9

SD State

Enables or disables the PLD state

(See Disturbance Simulation)

Enable, Disable

SD Continue*

Selects whethe r to create PLD

not output when the step is ran.

No, Yes

SD Voltage*

Sets the voltage level of the PLD.

0.0 V – 300.0 V

SD Site*

Set the starting time of PLD. With

settable time is 25 ms.

0.0 ms – 25.0 ms SD Time*

Set the duration time of the PLD.

0.0 ms – 5000.0 ms

List Save

Select Yes to save the list to memory

Yes, No

1. From the CONFIG menu, browse and select List-Set and p ress

2. On the following sc re en, select between On/Off or Trigger. Then press

confirm.

- On/Off – selecting this option will allow the On/Off bu tton to start a list.

- Trigger – selecting this option wil l allow a trigger signal to start a list.

3. To exit the menu at any time, press twice.

Edit List File

Each list can store from 1 to 100 steps and can be set to repeat from 1 to 1000 times. To access the edit list menu, press (Shift) and press “List” (“8”). Now select the “Edit” option and press

. Each step’s parameters contain a voltage, frequency, wi dth (time to hold the step), slope, and PLD settings. The adjustable range and operation for each of these parameters are specified in table below:

Table 3.2 - Step Parameter Range

List Repeat

1 – 10000

continuously. If yes is selected, the

power supply will create the programmed PLD in intervals of 100 ms. If no, the programmed PLD will

the restriction of frequency, the max

bank 0-9

(If yes , select memory

0-9)

*Parameter only available when S D S tate is set to “Enable”.

Setting PLD Parameters SD State – This enables or disables the PLD simulation. Enable it to include PLD in the list step.

SD Continu e – This selects whether to create the PLD continuously or not. If SD State is enabled, this should be set to Yes so that it will simulate the PLD.

Note: The programmed PLD will output con ti nuously in interva ls of 100 ms. If the step dwell time reaches be fore the 100 ms int e rv a l, the power supply will output the next step immediately and skip the step’s PLD simulation.

Note: After the initial 50 ms delay from the start of a list program, the power supply will output 100 ms (or longer becaus e after 100 ms, th e last cycle must be completed) of the first step before the first PLD occurs. If the first step’s dwell time is set to the minimum of 0.1 s, then 200 ms of the firs t step will output instead before the first PLD occurs. Thereafter, the PLD will output in 100 ms intervals. See the graph below:

SD Voltage - This parameter defines the voltage level of the PLD. SD Site – This parameter de fines the time l ocation (with refe rence to the beginning of a period

of the output) in which to output the PLD. Figure 3.5 above shows the output of the first step of a list with SD Site set to 0.0 ms.

SD Time – This parameter defines the duration of the PLD in time.

Figure 3.3 – Initial Start of a List

EnterEnter

Note: If the SD Time is greater than the Step Dwell Time, the PLD will carry over to the next step(s) of the list until either the SD Time is reached or the end of the last step in reached, whichever comes first.

Note: The simulated PLD will output at the same frequency as the st e p frequency.

Recall and Run Program

Once the program is configured and stored into memory, they can be recalled and triggered to run.

Recall Program

Follow the steps below to recall a stored program from memory:

1. From the LIST menu (press (Shift) select Recall and press

and press “List” (“8”)), use the arrow keys to

. The display will say RECALL LIST with the prompt Recall

List = 0.

2. This is the location number where the program is stored in. Select a number between 0 to 9 with the rotary knob or the numeric keypad, then press

3. Once selected, the display will read “Recall Data Success” and will return back to the

LIST menu.

Run Program

To run a program list after it is recalled, the trigger source must be configured first. Refer to “Configure List Setting” to set up the trigg er so urce settings.

Follow the steps below to run the program:

1. Assuming the stored program has already been recalled, from the LIST menu, with Disable selected, press the up or down key to select Enable and press

. The

Trig indicator will appear at the top middle of the display, as shown below:

EnterEnter

On/Off

EnterEnter

On/Off

EnterEnter

Note: If the Trigger Source is configured to BUS, use the remote command for sending

the list.

300.0V

0.0mA

0.00W

OFF Trig

PF = 0.000

500

List 0

Note: The “0” next to “List” in the display above is the step number indicator.

2. If the Trigger Source configured in Configure List Se tting is set to Manual (Def), then the front panel trigger key (Press (Shift) and then

Set section to configure this option) can be used to initiate the program.

3. Once triggered, the Trig indicator will disappear and the

4. If the output is not enabled, press the the list to run.

5. When the program ends, the reappear again.

triggers over any of the remote interface available. Refer to the programming manual for details.

If the Trig ger Source is configured to Extern, then use the external BNC to trigger

will stop blinking and the Trig indicator will

key to enable (ON) the output and allow

) or the

key (see List-

key will begin to blink.

Power Line Disturbance Simulation (PLD)

In list mode, the user has the ability to enable or disable the disturbance simulator (PLD). If enabled, an extended list of options will become available to easily simulate many different power line disturbanc e conditions. Some of these waveforms include surge, sag, and dropout waveforms. The following example shows a dropout waveform:

Parameter

Input

Step Count

List Repeat

Any

Step 0 Voltage

10.0 V

Step 0 Frequency

50.0 Hz

Step 0 Slope

0.0 s

Dwell Units

Second

Step 0 Dwell

SD State

Enable

SD Continue

Yes

SD Step 0 Voltage

0.0 V

SD Step 0 Site

3.0 ms

SD Step 0 Time

2.0 ms

List Save

Yes

Save data bank

Figure 3.4 – Droput Waveform

To create the waveform above, access the list mode as described above and enter the following parameters in the list mode file.

Once the list is saved to the desired memory bank, recall and run the program list by choosing the correct memory location (please see the “Recall and Run Program” for further details).

Note: If range is set to Auto and the swe e p pr ofile goes ov e r o r be low 150 V, there will be

delay is requir ed for the inst rum e n t to switch r a nges.

Voltage Sweep

Frequency Sweep

Voltage and Frequency Sweep

3.7 Sweep Mode

Sweep mode is used to create a sweep output with user-definable v o ltage and frequency settings. The voltage and frequency settings may be selected by setting the initial voltage, final voltage, step voltage, initial frequency, final frequency, step frequency and s t ep time. The step time may be indicated in seconds, minutes or hours. Once the sweep starts, the power supply will cycle through the voltage steps (from initial to final voltages) starting with the initial frequency. Then the power supply will step to the next frequency and cycle through the voltages steps (from initial to final voltages) again and repeat through all frequency steps until the sweep is complete. The power supply can sweep up or down depending on configured start and stop voltage and/or frequency. Once completed, the measured voltage, current, frequency, and power factor when the maximum power output occurred during the sw e ep will be displayed. The sweep function is ideal for testing the efficiency of switching power supplies or capturing th e ope rating power requirements of the device under test. A maximum of 10 files may be sto red.

a 50 ms delay during that inst a nce in which the instrument will output 0 V. This

Below are some examples of the type of sw e ep that can be setup and output fr om the power supply.

There are two steps to set up a sweep output (in order):

1. Edit Sweep File

2. Recall and Run Program

The following sections will go into the details of setting up these steps.

EnterEnter

Parameter

Operation Description

Input

Start Voltage

Sets the start voltage

0.0 V – 300.0 V

End Vol tage

Sets the end voltage

0.0 V – 300.0 V

Step Voltage

Sets the voltage step

0.1 V – 300.0 V

Time Unit

Sets the unit for the step time

Second, Minute, Hour

Step Time

Sets the step time

0.1 – 999.9

Start Frequency

Sets the start frequency

45.0 Hz – 500 Hz

End Frequency

Sets the end frequency

45.0 Hz – 500 Hz

Step Frequency

Sets the frequency step

0.1 Hz – 500 Hz

Yes, No

0-9)

EnterEnter

Edit Sweep File

To access the edit list menu, press (Shift) and press “7” (“Sweep”). Now select the “Edit” option and press

. The adjustable range and operation for each of the sweep

parameters are specified in table below:

Table 3.3 - Sweep Parameter Inputs

Sweep Save

Select Yes to sa ve the sweep to

memory bank 0-9

(If yes , select memory

Note: The sweep function will step through all of the voltage steps at the first frequency, then step through the voltages for the next step frequency until the sweep is complete.

Recall and Run Sweep

Once the sweep file is configured and stored into memory, it can be recalled.

Recall Sweep

Follow the steps below to recall a stored sweep file from memory:

1. From the SWEEP menu (press (Shift) and press “7” (“Sweep”)), use the arrow keys to select Recall and press

Recall Sweep = 0.

2. This is the location number where the program is stored in. Select a number between 0 to 9 with the rotary knob or the numeric keypad, then press

3. Once selected, the display will read “Recall Data Success” and will return back to the SWEEP menu.

. The display will say RECALL SWEEP with th e pr ompt

EnterEnter

On/Off

EnterEnter

On/Off

300.0V

0.0mA

0.00W

OFF

PF = 0.000

500

Sweep

150.0V

0.0mA

0.00W

OFF

PF = 0.000

Lock

Run Sweep

Follow the steps below to run the recalled sweep file:

1. Assuming the stored sweep has already been recalled, from the SWEEP menu, with

Disable selected, press the up or down key to select Enable and press Sweep text will appear below the frequency of the display, as shown below:

2. Press the

key will begin to blink while the sweep is running.

3. When the sweep ends, the automatically.

key to enable (ON) the output and allow the sweep to run. The

will stop blinking and the output will s hut off

. The

3.8 Key Lock

The front panel keys can be locked to prevent unwanted changes to output settings and power supply configurations. Follow the steps below to enable/disable key lock.

1. Press (Shift) and (Lock) the front panel keys are locked.

2. All keys are now disabled except for (Shift) , and (to change display readback).

. The follow display will be shown, indicating that

(Lock function and output state),

3. To unlock the keys again, press (Shift) and disappear and all keys will be enabled.

again. The “Lock” indicator will

Description

1 - 2

TXD, Transmit Da t a

RXD, Receive Data

GND 6 -

CTS, clear transfer

RTS, ready to transfer

1 2 3 4 5

7 8 9

4 Remote Operation

4.1 Interface Connection

RS-232

For RS-232 connectivity, refer to th e diag ram below for pin out information. The RS-232 is labeled in the rear panel and it is a female DB-9 interfac e. To select this interface t o communicate with the unit, please see Communication Setup.

A straight pin-to-pin DB9 female to DB9 male serial cable is required for using the RS-232 interface. Do not use a null modem or crossover DB9 serial cable.

USBTMC

The instrument has a USB interface (USBTMC) on the rear panel for remote communication. To select this interface to communicate with the unit, please see Communication Setup.

LAN

The LAN interface uses an Ethernet (RJ-45) connec ti on o n th e rear pane l a nd supports a socket connection. To select this interface to communicate with the unit, please see Communication Setup.

4.2 Remote Commands

The instrument supports some SCPI commands and some instrument specific commands. These commands enable a computer to remotely communicate and control the power supply over any of the supported remote interfaces: USBTMC, RS-232, and LAN.

Refer to the pr ogramming manual for details, whi ch can be downloa d ed from

www.bkprecision.com.

5 Troubleshooting Guide

Below are some frequently asked questions and answers. Please check if any apply to your power supply before contacting B&K Precision.

General

Q: I cannot power up the power supply.

- Check that the power cord is securely connected to the AC input and there is live power from your electrical AC outlet.

- Verify that the AC power coming from the mains have the correct voltage. The power supply can accept a specific range of AC input voltages. Refer to section “2.1”.

Q: How come my display voltage is lower than the voltage I set?

- This is often because of the resistances from the test leads/wires connected between the supply and the DUT (device under test), which causes a drop in voltage. To minimize this drop, use remote sense terminals to compensate and output a more accurate voltage to the DUT.

Q: Why can’t I set voltage and/or frequency under or over a specific limit?

- This may be that the se t v ol ta g e a nd / or frequency is outside of the set limits in the menu settings. Refer to the voltage limits section under “Voltage Limits” or frequency limits under “Frequency Limits” to verify and configure these limits.

Q: Why does my output waveform look cut off and distorted on my oscilloscope?

- Check to see if the dimmer function is enabled. If it is, it is likely the r es ul t o f the phase being cut, which results in a distorted waveform. This also leads to less RMS voltage. See the Dimmer section for more information.

Remote Control

Q: I am trying to send the commands over USB/RS232, but it does not seem to respond.

- Check that you are sending ASCII strings that are terminated with a CR (carriage return) and LF (linefeed) character.

- For RS-232, check that the baudrate, parity, data bits, stop bit, and flow control settings match with the settings configured on the software interface.

- Check that pins 2 and 3 are not crossed.

Model

9801

AC Input

Phase

Single

Voltage

110 / 220 VAC ± 10%

Frequency

47 – 63 Hz

Current

8 A max.

Power Factor

0.5 (typical)

AC Output

Max. Power

300 VA

(RMS)

0 – 150 V

3 A

0 – 300 V

1.5 A

Max Current

(Peak)

0 – 150 V

12 A

0 – 300 V

6 A

Phase

Single

Crest Factor

≥ 4

Total Harmonic Distortion (T. H.D)

≤ 0.5% at 45 – 500 Hz (Resistive Load)

Line Regulation

0.1 % max for a ± 10% line change

Load Regulation

≤ 0.5% FS (Resistive Load)

Response Time

< 100 μs

Programming

Range

0 – 300 V, 150 / 300 V (Auto)

Resolution

0.1 V

Accuracy

± (0.2% + 0.6 V)

Range

45 – 500 Hz

0.1 Hz at 45 – 99.9 Hz 1 Hz at 100 – 500 Hz

Accuracy

0.1 Hz

Range

0 – 360 °

Resolution

0.1 °

Accuracy

± 1° (45 – 65 Hz)

Readback

Range

0 – 300 V

Resolution

0.1 V

Accuracy

± (0.2% + 0.6 V)

Range*

Low: 120.0 mA / Mid: 1.200 A / High: 3.00 A

Resolution

Low: 0.1 mA / Mid: 1 mA / High: 10 mA

Accuracy

Low: ± (0.2% + 0.4 mA) / Mid: ± (0.2% + 4 mA) / High: ± (0.2% + 20 m A )

Range

0 – 12 A

Resolution

0.01 A

Accuracy

± (1% + 120 mA)

Resolution

Low: 0.01 W / Mid: 0.1 W / High: 1 W

Accuracy

Low: ± (0.2% + 0.05 W) / Mid: ± (0.2% + 0.5 W) / High: ± (0.2% + 2 W )

6 Specifications

Note: All specifications apply to the unit after a temperature stabilization time of 15 minutes over an ambient

temperature range of 23 °C ± 5 °C. Specifications are subject to change without notice.

Max Current

Voltage

Frequency

Phase Angle

Voltage

Current

(RMS)

Current

(peak)

Power

Resolution

(47 – 65 Hz)

General

Memory

10 locations

External BNC, input/output

Trigger input, sync output, output status, output indicator/control

Interface

LAN, USB, RS232

Operating Environment

0 – 40 °C, 20 – 80% RH

Dimensions (W×H×D) (mm)

214.5 × 88.2 × 453.5

Weight

9.5 kg

* The current range switches from low to mid range or mid to high range when Ipeak > 300 % of the present range. When Ipeak is <80 % of the high range, the current range switches from high to mid range. When Ipeak is <20 % of the mid range, the current range switches from mid to low range.

To ensure the most current version of this manual, please download the latest version here:

http://www.bkprecision.com/search/9801

For current up-to-date product information, please visit www.bkprecision.com

Calibration

We recommend a calibration interval of once per year to ensure that the power supply meets specifications.

SERVICE INFORMATION

Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtain a RMA #.

Return the product in the original packaging with proof of purchase to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Please go to the support and service section on our website at www.bkprecision.com to obtai n a RMA #. Return the product in the original packaging to the address below. Clearly state on the RMA the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Customers not on an open account must include payment in the form of a money order or credit card. For the most current repair cha rges please refer to the service and support section on our website.

Return all merchandise to B&K Precision Corp. with prepaid shipping. The flat-rate repair charge for Non-Warranty Service does not include return shipping. Return shipping to locations in North Amer ica is included for Warranty Service. For overnight shipments and non-North American shipping fees please contact B&K Precision Corp.

B&K Precision Corp.

22820 Savi Ranch Parkway

Yorba Linda, CA 92887 www.bkprecision.com

714-921-9095

Include with the returned instrument your complete return shipping address, contact name, phone number and description of problem.

LIMITED THREE-YEAR WARRANTY

B&K Precision Corp. warrants to the or iginal purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of three years from date of purchase.

B&K Precision Corp. w ill, without charge, repair or replace, at its option, defective product or component parts. Returned product must be accompanied by proof of the purchase date in the form of a sales receipt.

To help us better serve you, please complete the warranty registration for your new instrument via our website

www.bkprecision.com

Exclusions: This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs. The warranty is void if the serial number is altered, defaced or removed.

B&K Precision Corp. shall not be liable for any consequential damages, including without limitation damages resulting from loss of use. Some states do not allow limitations of incidental or consequential damages. So the above limitation or exclusion may not apply to you.

This warranty gives you specific rights and you may have other rights, which vary from state-to-state.

B&K Precision Corp.

22820 Savi Ranch Parkway

Yorba Linda, CA 92887 www.bkprecision.com

714-921-9095

22820 Savi Ranch Parkway

Yorba Linda, CA 92887

www.bkprecision.com

Printed in China v040215

B&K Precision 9801 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety Summary

Compliance Statements

Safety Symbols

1 General Information

1.1 Product Overview

1.2 Package Contents

1.3 Product Dimensions

1.4 Front Panel Overview

Front Panel Description

1.5 Rear Panel Overview

Rear Panel Description

1.6 Display Overview

Display Description

2 Getting Started

2.1 Input Power and Fuse Requirements

Input Power

Fuse Requirements

Fuse Replacement

2.2 Output Connections

2.3 Preliminary Check

Self-test Errors

Output Check

Voltage and Frequency Check

Check Model and Firmware Version

3 Front Panel Operation

3.1 Menu Options

How to Access the Menu

3.2 Configure Voltage and Frequency Output

Setting Voltage

Output Range

Setting Frequency

Setting Phase Angle

3.3 SYSTEM Menu

Restore Factory Default Settings

Configure Power-On Settings

Configure Power-Out State

Enable/Disable Key Sound

Configure Trigger Source

Communication Setup

RS-232

USBTMC

LAN (Ethernet)

Save/Recall Instrument Settings

Save Settings

Recall Settings

3.4 CONFIG Menu

Voltage Limits

Minimum Voltage Limit

Maximum Voltage Limit

Frequency Limits

Minimum Frequency Limit

Maximum Frequency Limit

Current Protection

Current (RMS) Protection Point

Current (Peak) Protection Point

External BNC

3.5 Dimmer Output S im ulation

3.6 List Mode

Configure List Setting

List-Set

Edit List File

Recall and Run Program

Recall Program

Run Program

Power Line Disturbance Simulation (PLD)

3.7 Sweep Mode

Edit Sweep File

Recall and Run Sweep

Recall Sweep

Run Sweep

3.8 Key Lock

4 Remote Operation

4.1 Interface Connection

RS-232

USBTMC

4.2 Remote Commands