BK Precision XLN6024, XLN3640, XLN8018, XLN10014 User Manual

Model: XLN3640, XLN6024, XLN8018, XLN10014

High Power Programmable

DC Power Supply

Click for models XLN15010, XLN30052 & XLN60026

USER MANUAL

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Safety Summary

The following safety precautions apply to both operating and maintenance personnel
and must be observed during all phases of operation, service, and repair of this
instrument. Before applying power, follow the installation instructions and become
familiar with the operating instructions for this instrument.

Failure to comply with these precautions or with specific warnings elsewhere in this
manual violates 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. This is a Safety Class I instrument.

GROUND THE INSTRUMENT

To minimize shock hazard, the instrument chassis and cabinet must be
connected to an electrical ground. This instrument is grounded through the
ground conductor of the supplied, three-conductor ac power cable. The
power cable must be plugged into an approved three-conductor electrical
outlet. Do not alter the ground connection. Without the protective ground
connection, all accessible conductive parts (including control knobs) can
render an electric shock. The power jack and mating plug of the power cable
meet IEC safety standards.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE

Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.

KEEP AWAY FROM LIVE CIRCUITS

Instrument covers must not be removed by operating personnel. Component
replacement and internal adjustments must be made by qualified maintenance
personnel. Disconnect the power cord before removing the instrument
covers and replacing components. Under certain conditions, even with the
power cable removed, dangerous voltages may exist. To avoid injuries,
always disconnect power and discharge circuits before touching them.

DO NOT SERVICE OR ADJUST ALONE

Do not attempt any internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.

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DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT

Do not install substitute parts or perform any unauthorized modifications to
this instrument. Return the instrument to B&K Precision for service and
repair to ensure that safety features are maintained.

WARNINGS AND CAUTIONS

WARNING and CAUTION statements, such as the following examples,

denote a hazard and appear throughout this manual. Follow all instructions
contained in these statements.

A WARNING statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in injury or death to
personnel.

A CAUTION statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in damage to or
destruction of part or all of the product.

WARNING:

Do not alter the ground connection. Without the protec

tive ground
connection, all accessible conductive parts (including control knobs)
can render an electric shock. The power jack and mating plug of the

power cable meet IEC safety standards.

WARNING:

To avoid electrical shock hazard, disconnect power cord

before

removing covers. Refer servicing to qualified personnel.

CAUTION:

Before connecting the line cord to the AC mains, check the rear panel
AC line voltage indicator. Applying a line voltage other than the

indicated voltage can destroy the AC line

fuses. For continued fire

protection, replace fuses only with those of the specified voltage and

current ratings.

CAUTION:

This product uses components which can be damaged by

electro-

static discharge (ESD). To avoid damage, be sure to follow

proper pr

ocedures for handling, storing and transporting parts and

subassemblies which contain ESD-sensitive components.

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Store/Move/Maintain

Storage

When this device i s n ot i n u se, p roperly p ackage i t and store i t in an
environment suitable for storage (if present in a good preserving environment,
the packaging process can be waived).

Freight

While m oving t his pr oduct, m ove i t by us ing t he o riginal packaging to pa ck
this pr oduct i n a dvance. I f t he packaging material i s l ost, u se an eq uivalent
buffer material to replace i t i n p ackaging; an d with external m arks i ndicating
“fragile & water-prevention”.

Maintenance

Please r eturn the pow er s upply to fa ctory fo r any repair, s ervice, o r
maintenance.

Disposal

When the device is in an u nusable condition a nd can’t b e r epaired, p lease
discard it a ccording t o y our c ompany’s disposal p rocedures or local l egal
procedures. Don’t discard arbitrarily to avoid polluting the environment.

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Table of Contents

1. Preface ...................................................................................................... 1

1.1 Products Outline ................................................................................ 1

1.2 Features ............................................................................................. 2

1.3 Specifications .................................................................................... 4

2. Cautions Before Using ............................................................................ 9

2.1 Check and Confirm Accessories before Using .................................. 9

2.2 Operation Instructions ....................................................................... 9

2.3 Ambient Environment ....................................................................... 9

2.4 Storage ............................................................................................. 10

2.5 Power-line voltage ........................................................................... 10

2.6 Fuses ................................................................................................ 10

2.7 Warm-up Time ................................................................................. 11

2.8 Power-off procedure ........................................................................ 11

2.9 Cautions in Operation ...................................................................... 11

3. Front Panel Operation .......................................................................... 12

3.1 XLN3640/XLN6024/XLN8018/XLN10014 Panel ......................... 12

3.1.1 Front Panel ................................................................................. 12

3.1.2 Rear Panel .................................................................................. 30

4. Operation Instructions ......................................................................... 34

4.1 Voltage Setting................................................................................. 34

4.2 Current Setting ................................................................................ 34

4.3 Over-voltage Protection OVP .......................................................... 34

4.4 Over-current Protection OCP .......................................................... 34

4.5 Voltage Output ................................................................................. 35

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4.6 Control Voltage Output with Rotary knob ....................................... 35

4.7 Timer Function ................................................................................ 35

4.8 Series (cascade) / Parallel Mode Setting ......................................... 36

4.8.1 Parallel Connection Setting ........................................................ 36

4.8.2 Series Mode Setting ................................................................... 38

4.8.3 Error Message of Series/Parallel Connection ............................ 41

4.9 External Tuning Setting ................................................................... 42

4.10 Timer of Current Flow ..................................................................... 43

4.11 Programmable Capability (SCPI Command Only) ......................... 44

4.12 Multi-unit Connection mode (RS485) ............................................. 50

5. Protection and Error Messages............................................................ 54

5.1 Over-voltage Protection (OVP) ....................................................... 54

5.2 Over-current Protection (OCP) ........................................................ 54

5.3 Overpower Protection (OPP) ........................................................... 54

5.4 Constant Voltage Protection (CV TO CC) ....................................... 55

5.5 Constant Current Protection (CC TO CV)....................................... 55

5.6 Over-temperature Protection (OTP) ................................................ 55

5.7 Low Voltage Protection (ACD) ....................................................... 56

5.8 Error Input Message ........................................................................ 56

6. Remote Interface communication protocol ........................................ 57

6.1 Prefaces ........................................................................................... 57

6.2 Parameters Definition ...................................................................... 57

6.3 The Error/Event List ........................................................................ 58

6.4 Remote Communication Protocol ................................................... 59

6.5 SCPI Conformity Information ......................................................... 62

6.5.1 Common SCPI commands ......................................................... 62

6.5.2 SCPI Command subsystem ........................................................ 63

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6.6 State Bit Definition .......................................................................... 74

6.7 LAN Communication (-GL versions) .............................................. 75

Using Web Server........................................................................................... 75

Main Page (Home) .................................................................................. 75

Using Telnet ............................................................................................ 78

Using Sockets .......................................................................................... 78

7. Assemble Accessories ............................................................................ 79

7.1 Assemble Rack Mount Brackets ..................................................... 79

7.2 Assembly of Output Protective Cover

(XLN6024/XLN8018/XLN10014) .................................................. 80

7.3 Assembly of Remote Sense Protective Cover

(XLN6024/XLN8018/XLN10014) .................................................. 81

8. Accessories ............................................................................................. 82

9. Service Information .............................................................................. 84

10. Limited Three-year Warranty ............................................................. 85

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1. Preface

1.1 Products Outline

B&K P recision models XLN3640/XLN6024/XLN8018/XLN10014 are
programmable D C pow er supplies with s ingle ou tputs that of fer t he
maximum power output up to 1440 watts (0 -- 36 V/40 A or 0 -- 60 V/24 A
or 0 -- 80 V/18 A or 0 -- 100 V/14.4 A). With a 16-bit D/A, A/D converter
embedded, the pow er supplies come w ith the resolution of 1mV i n voltage
setting and 1mA in current setting. By connecting up to 4 power supplies in
parallel o r se ries, a maximum power out put up t o 5760 watts can be
generated. With four XLN10014 connected in s eries, the maximum output
voltage can reach 400 V. W ith four XLN3640 connected in parallel, t he
output current can reach up to 160 A.

The XLN series provides a rotary control knob and numerical and function
keys to m ake t he instrument c onvenient a nd e asy t o use. Additionally, th e
power supplies provide a memory space for storage of 10 instrument settings
that can be recalled directly. This feature offers a n easy w ay t o r estore t he
application settings. In addition, users can program to control when to cut off
the output. This feature provides extra safety f or burn-in a nd e lectroplating
applications. The supplies also pr ovide over voltage protection (OVP), over
current protection (OCP), and over power protection (OPP) features used to
keep t he out put v oltage a nd c urrent w ithin s afety le vel and preventing
damage to the UUT (Unit Under Test) due to excessive current. The key lock
feature is added to avoid accidental setting changes to the XLN series. When
the i nput pow er a nd the l oad c hange, t he power supplies maintain a stable
output due to load and line regulation of less than 0.05%; the transient time
less than 1 m s. In remote mode, the s upplies can output a n ew
voltage/current setting 50 ms after receiving a command, which can increase
the throughput on production lines.

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1.2 Features

1) Output Voltage & Current

Voltage output range: 0 -- 36V (XLN3640) / 0 -- 60V (XLN6024)
0 -- 80V (XLN8018) / 0 -- 100V
(XLN10014)
Current output range: 0 -- 40A (XLN3640) / 0 -- 24A (XLN6024)
0 -- 18A (XLN8018) / 0 -- 14.4A
(XLN10014)
Power output range: 0 -- 1440W

2) Rotary knob, numerical keys and functions keys

The rotary knob can be used t o rapidly ch ange the o utput voltage s etting
and si mulate t he surge of the voltage output. It offers a good s olution for
testing triggering c ircuits. Numerical k eys allow f or direct e ntry o f
parameters. U sing function k eys t o s witch modes m akes t he overall
operation more convenient.

3) Precise voltage and current measurement

Besides t he pr ecise out put, the X LN s eries also of fers the cap ability to
measure voltage & cu rrent accurately (read b ack), saving users the extra
expense and space for extra measuring instruments.

4) Internal memory and timer function

The XLN series provides a memory s pace for storage an d r etrieval of 10
instrument settings. The instruments provide one (1) ti mer w ith the
resolution o f 1 s econd. The t imers a re used to time the outputs. When the
timer c ounts down t o z ero t he power s upply will a utomatically turn th e
output off. This feature is useful when the supply is providing power to the
test o bject in a burn-in r oom where o perators can precisely set t he t ime
when the equipment is to shut off.

5) OVP (over voltage protection), OCP (over current protection) and OPP
(over power protection) and key lock functions

The over voltage protection (OVP), over current protection (OCP) and over
power protection (OPP) features limit t he m aximum output c urrent and
voltage t o av oid d amages t o the unit unde r test (UUT). The ke y l ock
feature d isables a ll k eys e xcept the C LR k ey. It p revents damaging the

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UUT by accidentally entering the wrong settings.

6) Series & parallel connection mode

The series-parallel connection mode of two or more units (maximum to 4
units) significantly increases the combined output power to a maximum of
5760 W. In parallel connection mode of four XLN3640 the maximum
output is 36 V/160 A; and in series connection mode of four XLN10014,
the maximum output is 400 V/14.4 A.

7) Multi-unit connection mode

The RS 485 interface can be used to connect multiple power supplies in
series, up to maximum of 30 units. They can be controlled via USB
interface with a computer.

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1.3 Specifications

XLN3640/XLN6024 Specifications

Output Rating

XLN3640 XLN6024

Output Voltage 0--36 V 0--60 V

Output Current 0--40 A 0--24 A

Output Power 1440 W 1440 W

Output Protection

OVP Adjustment Range

2--38 V

3--64 V

OVP Accuracy

200 mV

300 mV

Line Regulation

Voltage ≤ 4 mV ≤ 6 mV

Current ≤ 4 mA ≤ 4 mA

Load Regulation

Voltage ≤ 8 mV ≤ 8 mV

Current

≤ 8 mA

≤ 7 mA

Ripple/Noise (20Hz-20MHz)

Normal Mode Voltage
( ≥ 0.5 % of max. power)

≤ 5 mVrms/≤ 60 mVpp ≤ 6 mVrms/≤ 70 mVpp

Normal Mode Current ≤ 90 mA ≤ 70 mA

Programming Resolution

Programming 1 mV/1 mA 1.5 mV/1 mA

Readback 1 mV/1 mA 1.5 mV/1 mA

Programming Accuracy ±(% output+offset)

Voltage 0.05 %+10 mV 0.05 %+15 mV

Current 0.05 %+10 mA 0.05 %+18 mA

Readback Accuracy ±(% output+offset)

Voltage 0.05 %+10 mV 0.05 %+15 mV

Current 0.05 %+10 mA 0.05 %+18 mA

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General

Average Command Response
Time

<50 ms <50 ms

Power Factor Correction

0.99

(Full load)

0.99

(Full load)

Remote Sense Compensation 2V 2V

Rising Time at Full Load ≤ 15 ms ≤ 20 ms

Rising Time at No Load ≤ 15 ms ≤ 20 ms

Falling Time at Full Load ≤ 15 ms ≤ 20 ms

Falling Time at No Load ≤ 1000 ms ≤ 1000 ms

Standard Interface USB

Transient Response Time ≤ 1 ms

Efficiency 80 %

AC Line Rated Input Voltage

100--240 VAC

(Full load)

Tolerance/Variation in
Voltage

-15% -- +10%

(10% power de-rating mode

when voltage under 95 VAC)

Rated Frequency 47 Hz--63 Hz

Maximum Rated Input Power 1700 VA

Temperature Ratings(O) Operation (0 °C -- 40 °C)

Temperature Ratings(S) Storage (-10 °C -- 70 °C)

Dimensions(W*H*D) 16.5 x 1.7 x 17 inch(420 x 43.6 x 432 mm)

Weight 19.8 lbs. (9 kg)

Standard Accessories

Power Cord, Terminal Blocks for Rapid Plug

Connector, Rackmount Kit, Manual

Standard Interface USB

Optional Interface LAN & GPIB

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XLN8018/XLN10014 Specifications

Output Rate

XLN8018 XLN10014

Output Voltage

0～80 V 0～100 V

Output Current

0～18 A 0～14.4 A

Output Power 1440 W 1440 W

Output Protection

OVP Adjustment Range

4～85 V 5～105 V

OVP Accuracy 400 mV 500 mV

Line Regulation

Voltage ≤ 8 mV ≤ 10 mV

Current ≤ 4 mA ≤ 4 mA

Load Regulation

Voltage ≤ 10 mV ≤ 12 mV

Current ≤ 6.5 mA ≤ 6 mA

Ripple/Noise (20Hz-20MHz)

Normal Mode Voltage
( ≥ 0.5 % of max. power)

≤ 7 mVrms/≤ 80

mVpp

≤ 8 mVrms/≤ 80 mVpp

Normal Mode Current ≤ 50 mA ≤ 40 mA

Programming Resolution

Programming 2 mV/1 mA 2.5 mV/1 mA

Readback 2 mV/1 mA 2.5 mV/1 mA

Programming Accuracy ±(% output+offset)

Voltage 0.05 %+20 mV 0.05 %+25 mV

Current 0.05 %+7 mA 0.05 %+6 mA

Readback Accuracy ±(% output+offset)

Voltage 0.05 %+20 mV 0.05 %+25 mV

Current 0.05 %+7 mA 0.05 %+6 mA

General

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Average Command
Response Time

<50 ms <50 ms

Power Factor Correction

≥ 0.99

(Full load)

≥ 0.99

(Full load)

Remote Sense

Compensation

2 V 2 V

Rising Time at Full Load ≤ 25 ms ≤ 30 ms

Rising Time at No Load ≤ 25 ms ≤ 30 ms

Falling Time at Full Load ≤ 25 ms ≤ 30 ms

Falling Time at No Load ≤ 1000 ms ≤ 1000 ms

Transient Response Time ≤ 1 ms

Efficiency ≥ 80 %

AC Line Rated Input
Vo l t a g e

100～240 VAC

( Full load )

Tolerance/Variation in
Voltage

-15 %～+10 %

( 10 % power de-rating mode

when voltage under 95 VAC )

Rated Frequency

47 Hz～63 Hz

Maximum Rated Input
Power

1700 VA

Temperature Ratings(O) Operation (0 °C -- 40 °C)

Temperature Ratings(S) Storage (-10 °C -- 70 °C)

Dimensions(W*H*D) 16.5 x 1.7 x 17 inch (420 x 43.6 x 432 mm)

Weight 19.8 lbs. (9 kg)

Standard Accessories

Power Cord, Terminal Blocks for Rapid Plug

Connector, Rackmount Kit, Manual

Standard Interface USB

Option Interface LAN & GPIB

Specifications and information is subject to change without notice

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Features of models XLN3640/XLN6024/XLN8018/XLN10014:

 Graphical, easy to read LCD display
 Compact, high efficiency and power density
 40 A output connector for quick connectivity
 Convenient numerical & function keys
 Store and recall 10 instrument settings
 Timer (1 sec -- 100 hours)
 Programmable (SCPI command only)
 List mode supports up to 10 s ets o f pr ogram and m aximum 150 s teps in

total

 Auxiliary 5 V/1 A output
 Built-in precise voltage and current measurement
 OVP, OCP, OPP and key-lock function
 Series & parallel connection setup (up to 4)
 Multi-unit connection mode via RS485 interface allows c onnection o f up

to 30 power supplies.

 Average measuring time per measurement is 50 ms
 Standard USB interface
 Optional i nterfaces: GPIB, L AN (order m odels X LN3640-GL,

XLN6024-GL, XLN8018-GL, XLN10014-GL)

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2. Cautions Before Using

2.1 Check and Confirm Accessories before Using

After r eceiving t his product, please verify the items received i n acco rdance
with the ones listed below:

1. The appearance of the products is without scratch or other damages.

2. Standard parts as shown in parts list of section 8.

2.2 Operation Instructions

In order t o avoid damaging the i nstrument due t o improper ope ration, b e
sure to r ead t his user manual. To maintain the s pecified accuracy, f actory
calibration should be performed annually.

2.3 Ambient Environment

1. Do not l ocate or op erate this p roduct i n an e nvironment w ith dus t,

vibration, or corrosive gas and do not expose this product directly to
the sunlight. O perate it in an e nvironment with temperature 0--40

o

C
& r elative h umidity 2 0%--80%. P ause t he ope ration when a mbient
temperature is over 40

o

C; undo t he operation onl y a fter the ambient
temperatures d rops t o t he accep table t emperature r ange. O perating
temperature over the above range would damage the instrument.

2. This product is equipped with one blow-out t ype c ooling fan on the

back board and three in-take cooling fans on inner side of front board.
Provide room for good ventilation near the cooling fans and keep the
boards w ith a space above 10cm away from w all. To maintain good
accuracy, do not block the ventilation holes in the front and the rear
parts of the unit.

3. Although the product is designed with filters to minimize noise from

AC power so urce, it i s r ecommended t hat it be operated in a low
power no ise e nvironment with p roper e arth g round. If t he pow er
noise is unavoidable, please install a power filter.

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2.4 Storage

The storage temperature r ange of this pr oduct i s w ithin -10ºC - 70ºC and
R.H. s hould be w ithin 80 % without moisture condensing. I f not op erating
this pr oduct f or a l ong t ime i nterval, p ack i t w ith original pa ckaging or
similar one and put it in a dry place without exposure to direct sunlight.

2.5 Power-line voltage

Rated AC power s ource c onnected to t his p roduct is w ithin 1 00 V-240 V
(refer to the Product Specification for details). Before connecting to external
power so urce, be sure t hat t he p ower sw itch is in OFF state and verify the
suitability of pow er c able ( including t he e xtension l ine). It should be
compatible with the rated voltage/current and should be firmly connected.

Warning :

The power cable attached with this product is certified
for safety. To change a cable or add an extension cable,
be sure that it can meet the required power ratings of
this product. Any misuse with an additional cable
would void the warranty of this product.

2.6 Fuses

This product is a switching mode power supply. The fuse installed inside is a
multi-barrier protection hardware design. It should not br eak unde r no rmal
operation. I n c ase the fuse does melt, it indicates another m alfunction that
causes t he f use t o break. In this case, it is suggested to send t his pr oduct
back to service.

Warning :

Any disassembling of the casing or changing the fuse not
performed by an authorized service technician will void
the warranty of the instrument.

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2.7 Warm-up Time

The XLN series is fully operable upon switching the power on. However, to
reach the specified equipment accuracy, please allow the supply to warm up
for at least 30 minutes.

2.8 Power-off procedure

When the supply is not in use, be sure to turn the power switch on the panel
to the OFF position to turn off the power. After the power switch is turned to
the OFF p osition, the inner f ans w ill s till r un f or approximately 10 -15
seconds to carry on the inside electric capacitor discharge process per safety
code requirement. Once the discharge p rocess is complete, this product will
carry out the automatic shut-down process

2.9 Cautions in Operation

A. While connected i n series, eac h power s upplies should be in pow er-on

state and output should be "ON". In case t here is any one supply t hat is
in power-off state or o utput is "OFF", the associated output current will
flow over the output bypass diode of the power-off unit and burn it out.

B. While in parallel c onnection m ode, t he out put v oltage of e ach power

supplies should be set to equal values. If the setting value of each unit is
not the same, the higher output voltage will feed back to the smaller unit
and destroy its inner parts.

C.

When the AC input voltage is lower than the full-load voltage which is

100 VAC, the supplies will activate an inner over temperature protector
and c ut of f the output i n r esponse to t he condition. To e nsure that t he
entire test process can be complete smoothly, confirm that the input AC
voltage is within the specified range.

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3. Front Panel Operation

3.1 XLN3640/XLN6024/XLN8018/XLN10014 Panel

3.1.1 Front Panel
(1) Power switch:

Please consult the “Cautions before use” section before turning on power
switch.

(2) Display:

192x32 Graphic LCD Module

(3) Current setting

:

Press

to set up the current limit.

(4) Voltage setting

:

Press

to set up the output voltage.

(5) Dot/Local :

This bu tton i s a pplied a s a decimal po int. Or p ush t his but ton a fter
entering R EMOTE onl ine s tate t o revert b ack t o LOCAL m ode
(unit-operation mode). Or press this button to release after entering
LOCK mode.

1 2 3 4 5 6 7

8

9

10

11

12 13 14

15

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(6) ESC/CLR :

Press this bu tton to c lean up num erical s etting o r jump t o t he previous
screen.

(7) Numerical keys

- :

They are used to directly input the voltage or current value or choose the
setting option in Menu screen.

(8) Down/Right/Store

:

This key is a multi-function key for the following three functions:

Down:

In “Menu Setting” status, use this “Down” key to move cursor

to the next item.

Right: Under “Output” status, use this key to move cursor right.

Store:

Under Memory S etting st atus, u se this k ey t o store s etting to
the selected memory set.

(9) Up/Left/Recall :

This key is a multi-function key for the following three functions:

Up:

In “Menu

Setting” status, use this “Down” key to move cursor

to the up item.

Left: Under “Output” status, use this key to move cursor left.

Recall:

Under Memory S etting st atus, u se t his k ey t o r ecall se tting
from the selected memory set.

(10) Display :

In “ Menu S etting”, p ress

to return t o m ain screen or toggle

the display to show voltage an d current or power a nd load resistance as
shown below:

=36. FF

5

1

.

=

.

.

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.

1= .

5

FF

.

3=6

.

(11) Output :

Control the On/Off of the output power.

(12) The rotary knob:

Use t his knob to ad just v oltage o r cu rrent ( press

first t o le t

cursor display first). This is adjustable when output is ON.

(13) Enter

:

This ke y is the c onfirmation key o f c urrent or vo ltage s etting va lue; o r
press

under ou tput s tatus t o dy namically a djust v oltage ( at C V

mode) or current (at CC mode).

(14) Mem

:

Press this key to enter access the storage memory. Users can then use the
numerical key or knob to select the target m emory set to s ave o r recall
the configuration by pressing t he STORE or RECALL k ey. Ten sets are
available in selection.

=

FF

.

.

(15) Menu :

Use this key to enter system parameter settings. There are eight (8) major
items unde r ope ration. Users m ay press

,

to scr oll

through t he m enu list or the num erical k eys to enter the corresponding
item number in the menu list.

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.

4
5
6

.
.

F

LL L

T

L T T F

1. SYSTEM SETTING:

Pressing

key i n t he f irst pa ge of Menu S etting will e nter the

following “SYSTEM SETTING” menu.

L=

= 1

T

=L

FF

REMOTE CONTROL:

Choose the remote interface

(USB/GPIB/ETHERNET)

*GPIB and ETHERNET available only
with on models with “-GL” suffix

*USB control requires installing USB
drivers first. Download USB driver

*US

B interface is a virtual COM port. T he settings are:

Baudrate : 57600 bps

1 . SYSTEM SETTING
2 . OUTPUT SETTING
3 . PROTECTION

7 . TIMER CONTROL
8 . CALIBRATION
9 . CHAIN SETTING

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16

Data bit : 8

Parity check : none

Stop bit : 1

*When entering t he Remote mode, screen will present R MT indicator as

shown in the following picture.

1

.

= .

5

F

F

3

.

= .

6

GPIB ADDRESS:

Set up GPIB ADDRESS (1-30)

EXTERN CONTROL:

Set up t he external

control to voltage

control (VOLT 0-10 V or 0-5 V), res

istance

control (RES 0-5K) or off (OFF).

=

5
F

52=

= F

552. 552. 552

.

F

L

IP CONFIG:

STATIC : User can input IP address

IP ADDRESS:

If IP C ONFIG is set to S TATIC, us ers can enter

a

static IP address here.

Note:

If you are not sure of the IP settings, consult

your network administrator.

KEY LOCK:

While e xiting the s etting screen after en

able K EY

LOCK, all keys except the key

are l ocked.

Only this key can disable KEY LOCK.

*Simultaneously pressing both and keys in th e main

screen can also lock keys.

*While e ntering K EY LOCK state, sc reen w ill present LCK indicator in

the bottom right corner.

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L

=

F

L

L

=
=

L

L

L

BEEP:

Turns the Buzzer ON/OFF

LCD BACKLIT:

Set the backlight of the LCD to Always

ON or OFF after 1/5/10/30 minutes

RECALL DEFAULT:

Restores the manufacturer

default

settings

.

FF=

F

=

,

=.F

=,FF

5

=

Ext 5V OUTPUT:

Turns the extra 5V power output

(on the rear

panel) ON/OFF.

POWER ON STATE:

Users can set t he ou tput state

of t he supply

when powered on. When OFF is selected, the
XLN series will do nothing after power on.

If

LAST is sel ected, then a t power on

the

supply w ill

use t he last set ting b efore it

turned off previously. If USER (user defined)
is sel ected,

a p rompt w ill a sk f or setting

output voltage, current, a nd output s tate.

Once set, these values are then used the next

time the supply is powered on.

HOT KEY:

Set the HOT KEY function ON/OFF. I

f the

HOT KEY function is ON, user can use 0 –

9

number keys to recall the voltage and current

HOT KEY = OFF

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18

setting values stored inside internal memory.

*If e ntering t he HOT K EY mode, sc reen w ill indicate HOT s ymbol a s

shown in the following illustration.

6

.

=

3

.

4

.

=

.

F

F

2. OUTPUT SETTING:

Press

in the first p age o f Menu S etting t o enter OUTPUT

SETTING menu.

VOLT LIMIT:

Upper limit of the output voltage setting

CURR LIMIT:

Upper limit of the output current setting

VOLT SLEW RATE:

Voltage ascending/descending slope

(XLN3640: 0.01 - 2.4V/ms)

(XLN 6024:0.01 - 3V/ms)

(XLN 8018:0.01 - 3.2V/ms

(XLN 10014:0.01 - 3.3V/ms)

VOLT LIMIT MAX = 60.500 V
CURR LIMIT MAX = 24.500 A
VOLT LIMIT MIN = 0.000 V

CURR LIMIT MIN = 0.010 A
VOLT SLEW RA TE = 3.0000 V/mS
CURR SLEW RA TE = 1.2000 A/mS

CONNECTOR DROP = DISABLE
EXT FULL VOLT = 10 V

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CURR SLEW RATE:

Current ascending/descending slope

(XLN 3640:0.01 - 2.5A/ms)

(XLN 6024:0.01 - 1.2A/ms)

(XLN 8018:0.01 - 0.72A/ms

(XLN 10014:0.01 - 0.48A/ms)

CONNECTOR DROP:

Turns on/off the connector drop calibration
function

EXT FULL VOLT:

External voltage control full-scale setting.
Select between 10 V or 5 V for full-scale

control.

3. PROTECTION SETTING (PROTECTION)

Press

key in th e first screen of “Menu S etting” to e nter

PROTECTION menu.

OVP:turns on/off the

overvoltage protection

SET: set up the overvoltage protecting

point.

OCP:turns on/off the

overcurrent protection

SET:

set up the overcurrent protecting

point.

OPP:turns on/off the overpower

protection

SET: set up the overpower protecting

point.

FF
FF

=

=

CV TO CC:

Enable/disable the protection of t he change

OVP = OFF SET = 38.000 V
OCP = OFF SET = 42.000 A
OPP = OFF SET = 1440.000 W

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from CV to CC mode

CC TO CV:

Enable/disable the protection of th e change

from CC to CV mode

4. SERIES/PARALLEL SETTING

Press

in t he second screen of Menu S etting t o e nter

SERIES/PARALLEL menu.

L

T

L

T

FF

=
=

T

SELECT MODE: Choose

series or parallel operation

mode.

MASTER/SLAVE:

Refer to “ Series/Parallel S etting”
section

for t he d etailed setting

procedure of MASTER/SLAVE mode.

5. INFORMATION

Press

in the second screen of “Menu Setting” to enter

INFORMATION screen.

F

463L

L

:

1

31

.

L

6. SPECIAL TEST FUNCTION

Press

in the second screen of “Menu Setting” to enter SPECIAL

TEST FUNCTION menu.

1. CURRENT COUNT ER TEST

2. PROGRAM MODE

3. MEASURE AVERAGE

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6.1 CURRENT C OUNTER T EST: Press to e nter t he
CURRENT COUNTER TEST screen.

= 1 . = .

:

.

FF

= 1 .

:

Refer to “Current Counting” section for the detailed setting procedure.

6.2 PROGRAM MODE: Press

to enter the PROGRAM MODE

menu.

1=

Before r unning t he pr ogram, us er needs t o input the p rogrammed
values through the USB or G PIB i nterface into the power su pplies.
Users may save up to 10 programs ( program number 1 t hrough 10)
inside the memory and r ecall them in this Program Mode screen by
selecting the program number and then pressing

to execute

the program.

6.3 MEASURE A VERAGE: Press

to enter th e MEASURE

AVERAGE page.

AVERAGE TIME:

Set the average measure time.

7. TIMER CONTROL

AVERAGE TIME = 2

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Press

in t he t hird pa ge of Menu S etting t o e nter T IMER

CONTROL screen.

=

=

FF

r

ni ec

TIMER:

Turn on/off TIMER function.

TIME:

Set up OUTPUT ON time (Max:999Hr 59Min
59Sec)

8. CALIBRATION

Press

in the t hird page of “Menu Setting” to enter

CALIBRATION menu. Users must enter t he p assword to access
calibration mode.

:

L

8.1 Equipment Requirements

1. 5 ½ Digital Volt meter.

2. Shunt for current calibration (100 A/ 10 m Ω)

8.2 Calibration Procedure

A. Connect power s upply output t erminal to D VM (as s hown i n

Figure 1 below). Turn on the s upply. O nce the u nit enters t he

main p age, p ress MENU and se lect “8. Calibration” and ke y i n

VOLTAGE CALIBRATION

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password “13579” to enter the following calibration menu screen:

Figure 1

L

1

.

3

2

.
.

L

L
L

B. Press “1” to access Voltage Calibration Procedure.

C.

L

o

468.1=L

5

2

1=L

=

2 4

455

.

11L

L

L

L
L

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LL

i

87.53=

D. According to voltage value displayed on DVM, fill in the values

for their corresponding functions and press ENTER. If any DVM

read-back value at each voltage function does not fit with the

following table below, please inspect the hardware.

XLN3640

Function

Setting

Val ue

Range of Read-Back Value

Lo 1.8V 1.5 - 2.0 V

MIDL 12V 10 - 13 V

MIDH 24V 21 - 25 V

Hi 32.4V 31 - 34 V

XLN6024

Function

Setting

Val ue

Range of Read-Back Value

Lo

3V

2.4 - 3.6 V

MIDL

20V

18 - 22 V

MIDH

40V

36 - 44 V

Hi

57V

53 - 61 V

XLN8018

Function

Setting

Val ue

Range of Read-Back Value

Lo

4V

3.6 - 4.4 V

MIDL

26V

23.5 - 28.5 V

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MIDH

53V

48 - 58 V

Hi

76V

69 - 83 V

XLN10014

Function

Setting

Val ue

Range of Read-Back Value

Lo

5V

4.5 - 5.5 V

MIDL

33V

29.7 - 36.3 V

MIDH

66V

59 - 72 V

Hi

95V

85 - 104 V

E. When pressing ENTER at Hi function, and the calibration data

values will be stored in FLASH and unit will return to calibration

main screen.

A. Press 2 in the calibration main page to enter OVP calibration

page.

OVP CALIBRATION

L
L

a=

o

L

=

i

B. Press ENTER to access OVP calibration procedure at Low function.

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26

L
L

n

i

abilaLo=

=

i

...

C. Jump to Hi function when completed.

L
L

Lo=

=

i

a

D. Press ENTER to access OVP calibration procedure at High function.

E.

L
L

Lo=

a=

i

lib

ain

. . .

F. After completing the above steps, calibration value will be stored in

FLASH and unit will return to the calibration main screen.

G. If calibration is not completed in 10 seconds after starting, please

inspect OVP circuit.

A. Connect two output terminals of the power supply to two ends of the

current shunt, and connect DVM to the sensor of current shunt to

measure DC voltage as shown Figure 2. Press 3 to enter current

calibration screen.

CURRENT CALIBRATION

B. First, input parameter (resistance of current shunt, mΩ) of current

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measurement fixture. According to voltage value shown on DVM,

fill in that value that corresponds to the function and press ENTER

key.

Figure 2

.

F

L
L

.

1

=

3

o

L

=
=L 1

.

1

.

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C. Please inspect the hardware if the current value is inconsistent with

the value in the tolerance error table below after the calibration

values of each function is changed to actual current value.

XLN3640

Function Setting Range of Transformation Value

Lo

0.1A

0 - 0.5 A

MIDL

13A

11 - 14 A

MIDH

26A

23 - 27 A

Hi

38A

34 - 39 A

XLN6024

Function Setting Range of Transformation Value

Lo

0.06A

0 - 0.5 A

MIDL

7.8A

6.6 - 9 A

MIDH

15.6A

14 - 17.2 A

Hi

22.8A

21 - 24.6 A

XLN8018

Function Setting Range of Transformation Value

Lo 0.045A 0 - 0.1 A

MIDL 5.9A 5.3 - 6.5 A

MIDH 12A 10.8 - 13.2 A

Hi 17A 15.3 - 18.7 A

CALIB CURR MIDH = 258.246 mV
CALIB CURR Hi = 377.559 mV

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XLN10014

Function Setting Range of Transformation Value

Lo

0.03625A

0 - 0.1 A

MIDL 4.7A 4.2 - 5.2 A

MIDH 9.5A 8.55 - 10.45 A

Hi 13.7A 12.33 - 15.07 A

D. The calibration value will be stored in FLASH after pressing

ENTER at Hi function.

9. Series Connection Control Setting (CHAIN)

Press

in Menu setting page to enter CHAIN SETTING

page.

FF=FF

1=

CHAIN ON/OFF : On/Off Series Connection Mode

CHAIN ADDRESS : Setting Address (1 – 30)

For the detailed setting information, please refer to “SERIES
CONNECTION FUNCTION” section.

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3.1.2 Rear Panel

Cooling fans:

The supply automatically adjusts fan’s rpm according to the load condition.

(16) Cooling fan:

The rear cooling fan speed is temperature control.

(17) Power output terminal:

Please pay attention to the correct polarities when making connection.

(18) RMT/LCL Sense:

When Remote s ense is sel ected, the w ire connection can be setup as
follows (shown i n t he f igure below): positive s ense (+S) and positive
lead ( +) of the D C output a re c onnected to t he positive end (+) of the
device, whereas negative sense (-S) and negative lead ( -) of the D C
output are connected to the negative end (-) of the device under test. This
connection w ill c ompensate the v oltage dr opped du e t o c urrent f low
through long power wires (the maximum compensation voltage is 2 V).

16

17

18

19

20

21

22

23

24

25

26

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When L ocal sense is se lected, the w ire connection can be setup as
follows (shown i n t he figure a bove):positive sen se (+S) is connected t o
the positive lead (+) and negative sense (-S) is connected to the negative
lead ( -), w hereas the p ositive l ead (+) of the D C output is connected t o
the p ositive e nd (+) of the de vice a nd the negative lead ( -) of the D C
output is connected to the negative end (-) of the device under test. When
this sensing mode is selected, the power wires from the DC output leads
to the device under test should be as short as possible.

(19) LAN (optional):

The ETHERNET interface connector

(20) GPIB (optional):

The GPIB interface connector

(21) AC power input:

The power receptacle is for a power source within 100 VAC - 240 VAC.

(22) Earth connection:

Used for earth ground connection.

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(23) 5V/1A Output:

XLN series offers an extra output with a constant ou tput voltage of 5 V
and the maximum output current of 1 A. This extra power supply can be
switched on or off under the “System Setting” menu.

(24) USB :

USB interface connector.

(25) EXT CTL:

Models XLN3640/XLN6024/XLN8018/XLN10014 offer t he capability
of setting t he out put v oltage/current by adjusting an external input
voltage/resistance. The range of the external input voltage is 0 - 10 VDC
or 0 - 5 VDC, which c orresponds to t he o utput voltage of 0 - 36 V for
XLN3640, 0 - 60 V for XLN6024, 0 - 80 V for XLN8018, and 0 - 100 V
for XLN10014 and corresponding to the output current of 0 - 40 A for
XLN3640, 0 - 24 A for XLN6024, 0 - 18 A for XLN8018, and 0 - 14.4 A
for XLN10014. The r ange of the external resistance i s 0 - 5 K ohm
which corresponds to the output v oltage of 0 - 36 V for XLN3640, 0 ­60V for XLN6024, 0 - 80 V for XLN8018, and 0 - 100 V for XLN10014
and corresponding to the output current of 0 - 40 A for XLN3640, 0 - 24
A for XLN6024, 0 - 18 A for XLN8018, and 0 - 14.4 A for XLN10014.

(26) RS485:

While in series or parallel c onnection or mu lti-unit series connection
(CHAIN), RS485 interface can be used f or communication and
synchronization between master and slave.

(27) Protection cover of the RMT/LCL Sense connector

(XLN6024/XLN8018/XLN10014):

WARNING:

When the RMT/LCL Sense is not activated and/or not
used, the protection cover must be covered

. T o prevent

electric shock, do not dissemble this protective cover.

(28) Protection cover of the output leads

(XLN6024/XLN8018/XLN10014):

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WARNING:

This PRODUCT is designed meeting safety code and has
passed the related qualification test. In case no output
cable is connected, close the protection cover and fasten
the screws in so as to protect user from electric shock or
other hazards.

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4. Operation Instructions

4.1 Voltage Setting

Press

and set the output voltage by pressing the numerical keys directly,

and then press

to confirm the setting.

=

.

.

=

1

5

.

FF

4.2 Current Setting

Press

and set the output current by pressing the numerical keys directly

and then press

to confirm the setting.

=

.

FF.

63

=

.

4.3 Over-voltage Protection OVP

Press

to e nter the C onfiguration menu and p ress to enter the

PROTECTION setting menu. Then, using the knob set OVP t o ON and press

to c onfirm i t. N ow t he c ursor w ill m ove t o t he value setting for t he

OVP on t he right hand side. Enter the OVP value h ere by pressing the
numerical keys.

F
F

S

=

3

.

8

S

S

=
=

204

41 4

.
.

F
F

=
=
=

4.4 Over-current Protection OCP

Press

to enter the “Configuration” menu and press to enter the

PROTECTION setting screen. Then, use the knob to set OCP to ON and press

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to confirm i t. N ow t he c ursor w ill m ove t o the value setting for t he

OCP on the right hand side. Enter th e O CP v alue by pr essing the n umerical
keys.

F

=
=

=

F

8

.

3

=

S
S
S

=
=

02441 4

.
.

4.5 Voltage Output

After the voltage, current and protection settings are entered, press

to

output voltage. User will be able to recognize the setting values and the actual
output values from the LCD.

.

=

1

5

.

.

63

=

.

4.6 Control Voltage Output with Rotary knob

When the output is ON, user may still increase or decrease the out put voltage
by turning the rotary knob. The p rocedure i s: press

and c ursor

appears i n r esponse; p ress

or

to m ove the cursor to th e d igit

you want to change and turn the knob to increase or decrease the output voltage
value a t the c ursor. The changes o f t he v oltage setting a nd t he output voltage
can be observed.

.

= 1

5

.

.

63

=

.

4.7 Timer Function

When the “Timer S etting” f unction i s O N, i t w ill activate th e t imer. After
timer setting i s m ade, r eturn t o t he m ain screen. A fter s etting up the ou tput
current & v oltage and press to ou tput, the screen will s how t he

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countdown of the timer. Once it reaches down to zero, the supply will turn off
the output automatically.

=

.

ce55

:

:

.

4.8 Series (cascade) / Parallel Mode Setting

The XLN3640/XLN6024/XLN8018/XLN10014 uses t he se ries/parallel m ode
(4 supplies maximum) to increase the output power capability. By connecting 4
instruments in parallel, the combined unit can offer 36 V/160 A pow er output.
By c onnecting 4 XLN10014 units in se ries, t he combined supply can output
400 V/14.4 A. Note that you c annot pe rform bot h pa rallel and series mode at
the s ame time. Series c onnection will be off o nce series (cascade) / p arallel
connection function is turned on.

4.8.1 Parallel Connection Setting

While c onnecting f our s ets of XLN3640/XLN6024/XLN8018/XLN10014 in
parallel, the wiring should be setup like the following:

After w iring i s complete, configure one XLN3640 / XLN6024 / XLN8018 /
XLN10014 as the Master and the other three are Slave A, B and C. After one of
the supplies is configured to be the Master, it will start searching for all Slaves

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that are connected to the Master. Therefore, in order to correctly configure the
correctly, user must set up the Slaves

before

To set a XLN3640/XLN6024/XLN8018/XLN10014 to slave mode, p ress

the Master is set.

,

, and

in t he m ain screen to en ter the se ries/parallel

setting op tion. And t hen select the p arallel m ode by turning the k nob (SCPI
command is “PS:MODE PARALLEL”) and then press

to c onfirm. It

will continue to the next line f or the MASTER/SLAVE selection. Turning the
knob t o select SLAVE A (SCPI c ommand i s “ PS:TYPE SLA VEA”) for the
supply and pr ess

to c onfirm t he s etting. Using the sam e p rocedure,

setup SLAVE B and C for another two (2) supplies as shown below.

L

LL

=
=

L

L

L

To s et the master unit, pr ess

,

, and

in t he main screen

to en ter the series/parallel setting option. And then use t he k nob t o select the
parallel mode (SCPI command is “PS:MODE PARALLEL”) and press

to confirm. It will continue to the next line for the MASTER/SLAVE selection.
Use knob again to select MASTER (SCPI command is “PS:TYPE MASTER”)
and t hen press

to confirm. A fter i t is co nfirmed as t he Ma ster the

XLN3640/XLN6024/XLN8018/XLN10014 will start sea rching f or al l S laves,
as shown below:

= LL L
=

F L

...

L

L

If wiring is correct, screen will appear as:

L

= LL L
=

:

L

L

F

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After receiving the control command from the Master, all Slaves will be locked
on to the SLAVE screen. At t his poi nt all k eys e xcept

are locked so

that slaves cannot be operated by front keys except controlled by the Master as
shown below:

:

:

LLL

Once the Master and Slave settings are done, users can then operate the Master
only to set up the combined output voltage and current of the complete system.

To release from this operation mode (parallel operation mode in this example),
press

(LCL) t o access to the series/parallel setting screen and turn the

knob to select O FF for series/parallel selection to disable the series or parallel
operation m ode a nd return to the l ocal o peration mode so that th e
XLN3640/XLN6024/XLN8018/XLN10014 can be controlled by press the front
keys again. Do not change t he o peration m ode w hile
XLN3640/XLN6024/XLN8018/XLN10014 is in t heir output states or there w ill
be a Master’s co mmunication failure an d an error message w ill b e d isplayed.
After power-off, if you want to keep the previous series/parallel setting, please
turn on the Slave first. Then turn on the Master.

4.8.2 Series Mode Setting

While c onnecting f our s ets o f XLN3640/XLN6024/XLN8018/XLN10014 in
series, the wiring setup should be configured as shown:

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After w iring i s c omplete, configure one supply as t he Master an d the o ther
three as the Slave A, B, and C. After the power supply is configured as Master,
it will start searching for all Slaves that are connected to the Master. Therefore,
in order to setup correctly, user must set up the Slaves

before

To s et a XLN3640/XLN6024/XLN8018/XLN10014 to th e slave mode, p ress

the Master is set.

,

, and

in t he m ain screen to en ter the se ries/parallel

setting o ption. Then select the SERIES mode by turning the k nob (SCPI
command is “P S:MODE SERIES”) and t hen press

to c onfirm. It will

continue to the next line for the MASTER/SLAVE selection. Turn the knob to
select S LAVE A ( SCPI command i s “P S:TYPE SLAVEA”) for the instrument
and pr ess

to c onfirm t he setting. Using the same p rocedure to se t u p

SLAVE B and C for the other two supplies.

L

L

=
=

L

To s et the master unit, press

,

,

and

in the main screen to

enter the ser ies/parallel set ting option. Then use the k nob to select the series
mode (SCPI command is “PS:MODE SERIES”) and press

to confirm.

It w ill c ontinue to the next l ine for the MASTER/ S L AV E selection. Use knob
again t o select MASTER (SCPI co mmand i s “PS:TYPE MASTER”) and then
press

to c onfirm. A fter c onfirming t he s upply as the Ma ster, it will

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40

start searching for all Slaves, as shown below.

=
=

F

L

.. .

L

L

If wiring is correct, this screen will appear:

L

=
=

:

L

L

F

After receiving the control command from the Master, all Slaves will be locked
on t he SLAVE screen and all k eys ex cept

are disabled so t hat s laves

cannot be operated by pressing front keys. This ensures the Master supply be
in control.

::

Once the Master and Slave settings are done, users can then operate the Master
only to set up the output voltage and current.

To release from this operation mode (series operation mode in this example),

press

(LCL) to access to the series/parallel setting screen and turn

the knob to select OFF for series/parallel selection to leave the series or
parallel operation mode and return to the local operation mode so that the

power supply can be controlled by pressing the front keys again. Do not
change the operation mode while the instruments are in their output state or
they will cause the Master’s communication to fail and display an error
message. After power-off, if you want to keep the previous series/parallel

setting, please turn on the Slave first. Then turn on the Master.

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4.8.3 Error Message of Series/Parallel Connection

If the RS485 w iring i s wrong or th e s ignal is not correct, the Master w ill
display the following message in the screen for searching Slaves:

L

L

LL

=
=

:

L

L

F

If more than one Master is being set in the series/parallel operation mode, the
following message will be displayed.

L

L
L

=

LL

L

=

,

L

If one of the pow er supplies is set to different series/ parallel operation mode,
the following message will appear on-screen:

L

L

L

LL

=
=

,

L

After f inishing se tting p rocedure, if t he Master cannot ha ve a communication
with one o f t he t hree Slaves, the Master w ill p resent t he f ollowing e rror
message (Slave A in this example).

L

!!!

After finishing the setting p rocedure, i f a Slave receives only the ou tput
command sent by the Master but does not receive the synchronization signal, it
will p resent the following error m essages. The e rror m essage “SYNC ON” is
shown when the slave is not receiving t he synchronous output ON signal. The

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error m essage “SYNC OF F” is s hown w hen the s lave is no t receiving th e
synchronous output OFF signal.

LL L

::

4.9 External Tuning Setting

Models XLN3640/XLN6024/XLN8018/XLN10014 provides the c apability to
control the ou tput v oltages by an external voltage/resistance. The range of the
external voltage is in 0 - 10 VDC or 0 - 5 VDC and the range of t he external
variable resistance is between 0 - 5 kΩ to control the output v oltage (0 - 36 V
for XLN3640, 0 - 60 V for XLN6024, 0 - 80 V for XLN8018, and 0 - 100 V for
XLN10014) and the o utput current (0 - 40 A for XLN3640, 0 - 24 A f or
XLN6024, 0 - 18 A for XLN8018, and 0 - 14.4 A for XLN10014). The wirings
of the external control are shown in the following figure.

The external v oltage c ontrol o r e xternal r esistance c ontrol can b e se t in the
“system set ting” screen. Since th e e xternal control circuit uses a 12bit D /A
converter for 0 - 36 V for XLN3640 (or 0 - 60 V for XLN6024 or 0 - 80 V for
XLN8018 o r 0 - 100 V fo r XLN10014) output v oltage a nd 0 - 40A for

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XLN3640 (or 0 - 24 A for XLN6024 or 0 - 18 A for XLN8018 or 0 - 14.4 A for
XLN10014) output c urrent, the resolution o f v oltage a nd c urrent w ill b e
different in response. The screen will show similar to the following (accuracy is
10mV):

4.10 Timer of Current Flow

This function of fers testing of the c utoff time o f a breaker o r a fuse. First,
connect the test object to output terminal as shown below.

Press

,

,

and then

in the main screen to enter the current

flow counter screen.

= 1. = .

:

.

FF= 1 .

:

Press VSET to set the voltage. Then press ISET to set the current (I), which is
the m aximum cu rrent y ou w ant t o t est. P ress ISET t wice t o set the
breaker/fuse cu rrent ( Ib). A fter s etting up the output voltage/current and
pressing

to turn on t he output, the system w ill st art co unting down

the timer until the breaker or fuse is open. The count starts from when output
has reached the Ib current. The resolution of the timer is 100us (0.1 ms) and
the maximum c ounting period is on e hou r. I f the counter d oesn’t w ork a fter

V = 36.00 V

I = 40.00 A OFF

0.00 V 0.00 A

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pressing , e rror oc curs h erein a nd the screen will d isplay an error
message after two seconds. One of the following three scenarios may happen:

A. Connector not ready

If a f use is not properly connected to the ou tput c onnector or a breaker under
test has no t be en s witched t o O N po sition, t he screen w ill show a n e rror
message as shown below.

LF !:!

:

.

!

B. Current setting too large

The output current is set too big that a breaker is open or a fuse is burnt to open
before out put current i s reaching t he s etting v alue. The screen w ill sh ow a n
error message as shown below.

!F L:! L

:

.

!

C. Voltage setting too small

The voltage is set too small, therefore the output current is unable to reach the
setting value. The screen will show an error message as shown below.

LF !:!

:

.

LL !

4.11 Programmable Capability (SCPI Command Only)

Models XLN3640/XLN6024/XLN8018/XLN10014 provides the c apability to
support list mode, which allows users to download a small program to internal
memory a nd execute a program from t here. There are memory spaces to store

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10 programs that can have 150 steps in total for setting purpose. This can only
be pr ogrammed r emotely via U SB, G PIB, or L AN with S CPI c ommands o r
with the included software. Each program doe s not restrict the step quantity,
however, the sum of 10 programs are restricted to 150 steps. For each program
users can se t u p h ow m any t imes t o repeat the pr ogram. For each st ep u sers
may be able t o set up t he output voltage, current, and pe riod of time ( 50 ms
minimum) t o st ay o n t he st ep. Please refer t o “SCPI co mmand su bsystem”
section for detail SCPI commands.

Below are some examples of commands used to setup a custom program in list
mode.

Example 1:

To ou tput t he w ave f orm shown above, users m ay ed it the program as the

following orders:

PROG 1

Choose program number

PROG:CLE

Clear program 1 data

PROG:REP 0

No repeat (repeat one time for “1”)

PROG:TOTA 8 Set program 1 to have 8 steps in total

PROG:STEP 1

Following 3 settings are for step 1

PROG:STEP:CURR 1

Set output current to 1 ampere

PROG:STEP:VOLT 5

Output voltage is set to 5 volts

PROG:STEP:ONT 0.1 Output ON time is set to 0.1 sec
PROG:STEP 2 Following 3 settings are for step 2

PROG:STEP:CURR 1

PROG:STEP:VOLT 10

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PROG:STEP:ONT 0.1
PROG:STEP 3 Choose step 3

PROG:STEP:CURR 1

PROG:STEP:VOLT 15

PROG:STEP:ONT 0.1

PROG:STEP 4 Choose step 4
PROG:STEP:CURR 1

PROG:STEP:VOLT 20

PROG:STEP:ONT 0.1

PROG:STEP 5

Choose step 5

PROG:STEP:CURR 1
PROG:STEP:VOLT 15

PROG:STEP:ONT 0.1

PROG:STEP 6

Choose step 6

PROG:STEP:CURR 1

PROG:STEP:VOLT 10
PROG:STEP:ONT 0.1

PROG:STEP 7

Choose step 7

PROG:STEP:CURR 1

PROG:STEP:VOLT 5

PROG:STEP:ONT 0.1
PROG:STEP 8 Choose step 8

PROG:STEP:CURR 1

PROG:STEP:VOLT 0

PROG:STEP:ONT 0.1

PROG:NEXT 0

Select next program to r un a fter

program 1 is complete, 0 means stop

PROG:SAV

After edit, use Save command to store

program 1 in the hardware

PROG 1

PROG:RUN ON

To run the pr ogram s tored in t he

hardware, select program

number a nd

then us e RUN ON c ommand t o

execute the program.

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Example 2:

To out put t he w ave f orm s hown a bove, the f ollowing example program can

be used.

PROG 2

Choose program number

PROG:CLE

Clear program 2 data

PROG:REP 0

No repeat after running this program

PROG:TOTA 8

Set program 2 to have 8 steps in total

PROG:STEP 1

Settings for step 1

PROG:STEP:CURR 2

Set output current to 2 amperes

PROG:STEP:VOLT 20

Set output voltage to 20 volts

PROG:STEP:ONT 0.5

Set output ON time to 0.5 sec

PROG:STEP 2

Choose step 2

PROG:STEP:CURR 2

PROG:STEP:VOLT 15

PROG:STEP:ONT 0.5

PROG:STEP 3

Settings for step 3

PROG:STEP:CURR 2

PROG:STEP:VOLT 20

PROG:STEP:ONT 0.5

PROG:STEP 4

Choose step 4

PROG:STEP:CURR 2

PROG:STEP:VOLT 10

PROG:STEP:ONT 0.5

PROG:STEP 5

Choose step 5

PROG:STEP:CURR 1

PROG:STEP:VOLT 20

PROG:STEP:ONT 0.5

PROG:STEP 6

Choose step 6

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PROG:STEP:CURR 2

PROG:STEP:VOLT 5

PROG:STEP:ONT 0.5

PROG:STEP 7

Choose step 7

PROG:STEP:CURR 2

PROG:STEP:VOLT 20

PROG:STEP:ONT 0.5

PROG:STEP 8

Choose step 8

PROG:STEP:CURR 2

PROG:STEP:VOLT 0

PROG:STEP:ONT 0.5

PROG:NEXT 0

Select next program to run after
program 2 is complete, 0 means stop

PROG:SAV

After edit, use Save command to store

program 2 in the hardware

PROG 2

PROG:RUN ON

To run the program stored in the

hardware, select program number and
then use RUN ON command to
execute the program.

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Example 3:

If i t n eeds t o execute P rogram 2 r ight af ter P rogram 1 i s ex ecuted then
program 1 s hall be modified to have NEXT 2 command. The following steps
can be taken for the modification and execute the programs.

PROG 1 Select program 1

PROG:NEXT 2 Change the NEXT command from

NEXT 0 to NEXT 2

PROG:S AV After edit is complete use Save

command to store changes in the

hardware

PROG 1

PROG:RUN ON

To run the program, select the

program

number first and then use RUN ON

command to execute it.

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4.12 Multi-unit Connection mode (RS485)

XLN3640 / XLN6024 / XLN8018 / XLN10014 c an us e R S485 to p rovide
multi-units series connection function for up to 30 units (If more than 10 units,
please ad d a 120Ω resistor t erminator in t he l ast un it a s s hown i n t he be low
figure. Turn on the system after series connection i s completed. Press


on t he main page and s et CHAIN ON/OFF t o ON ( Series/Parallel

connection will be cancelled) and set each unit with a different Address (1 - 30).
Then by using USB connected to PC, multiple units can be controlled by using
the commands in “SERIES CONNECTION COMMAND LIST” section below.

SERIES CONNECTION COMMAND LIST

The series connection command used by all XLN series power supplies

use a ca rriage r eturn ( CR) ch aracter f or t ermination o f al l A SCII st rings.

For example, the system w ill respond with the corresponding value or string

when delivering the inquire command, or respond “OK” when delivering the

setting command. In case any errors happen, the system will respond with an

error message. (Please refer to ERROR RESPONSE LIST section).

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SYSTEM CONTROL COMMAND:

Command Description

==================================================

CADR followed by address, which can be 1 to 30 and

is used to access the power supply

CCLS Clear status

CRST Reset command. Brings the power supply to a
known state

CIDN? Returns the power supply model identification
CREV? Returns the firmware version
CSN? Returns the serial number
CST? Returns the device status

CCLR? Clear protect

==================================================

OUTPUT CONTROL COMMAND:

Command Description

==================================================

CPV Sets the output voltage value in Volts
CPV? Reads the output voltage setting
CMV? Reads the actual output voltage
CPC Sets the output current value in Amperes
CPC? Reads the output current setting
CMC Reads the actual output current
CDVC? Display voltage and current data
COUT Turns the output to ON or OFF
COUT? Returns the output On/Off status
COV Sets the OVP level
COV? Returns the OVP setting level
COVP Sets the OVP on/off
COVP? Returns the OVP on/off
COC Sets the OCP level

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COC? Returns the OCP setting level
COCP Sets the OCP on/off

COCP? Returns the OCP on/off
COP Sets the OPP level

COP? Returns the OPP setting level

COPP Sets the OPP on/off

COPP? Returns the OPP on/off

CMODE? Returns the power supply operation mode

==================================================

SYNCHRONOUS CONTROL COMMAND:

Command Description

==================================================

GRST Reset command. Brings the power supply to a

known state

GCLS Clear status

GCLR Clear protect

GPV Sets the output voltage value in Volts

GPC Sets the output current value in Amperes

GOUT Turns the output to ON or OFF

GOV Sets the OVP level

GOVP Sets the OVP on/off

GOC Sets the OCP level

GOCP Sets the OCP on/off

GOP Sets the OPP level

GOPP Sets the OPP on/off

==================================================

EXAMPLES:

Q1. How to read back ID for Address 5 on the system?

CADR 5  OK
CIDN?  B&K Precision. XLN 3640,A1234567,1.15,0

Q2. How to set up Voltage for Address 7 on the system?

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CADR 7  OK
CPV 20  OK

Q3. How to set up Output for Address 7 on the system?

CADR 3  OK
COUT 1  OK

Q4. How to read back Voltage value for Address 1 on the system?

CADR 1  OK
CMV?  10.001

Q5. How to set up Current for all the systems?

GPC 5  No response

Q6. How to set up Output for all the systems?

GOUT 1  No response

ERROR RESPONSE LIST

If PC delivers an error command or connection fails, a return string will be sent

and is described below:

String Description

===============================================
OK No error

Time out Wait response time out

Range error Input value is out of range

Multi master There are more than one controller in the whole system

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5. Protection and Error Messages

5.1 Over-voltage Protection (OVP)

When t he OVP is activated and voltage measured exceeds the setting point of
protected v oltage, the system will e nter the “Over Voltage P rotect” mode that
will shut o ff t he output and show O VP on t he display. P ress to reset

the protection mode and deactivate the buzzer.

=36.

.

=

.

4

0

.

FF

5.2 Over-current Protection (OCP)

When t he OCP i s activated an d cu rrent measured exceeds the setting point of
protected current, system will enter the “Over Current Protect” m ode that will
shut of f t he out put and show O CP on t he display. P ress

to reset the

protection mode and deactivate buzzer.

.

63

=

.

1

0

.=

.

FF

5.3 Overpower Protection (OPP)

When the O PP i s a ctivated a nd pow er measured exceeds the se tting point of
protected p ower, sy stem w ill en ter t he “O ver P ower Protect” m ode that w ill
shut of f the output and display OPP on the screen. P ress to reset th e

protection mode and deactivate buzzer.

.

63

=

.

1

0

.=

.

FF

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5.4 Constant Voltage Protection (CV TO CC)

When this function is activated, the power supply will stay in CV mode. If load
changes force the system to transition from CV to CC (constant current) mode,
the system will enter the “CV TO CC Protect” state that will shut off the output
and d isplay t he C VC m essage o n the screen. P ress

to r eset th e

protection and deactivate the buzzer.

5.5 Constant Current Protection (CC TO CV)

When this function is activated the power supply will stay in CC mode. If load
changes forces t he transition from CC to CV (constant v oltage) m ode, the
system will en ter t he “CC TO C V P rotect” state that w ill shut off output a nd
display CCV message on the sc reen. Press

to reset the protection and

deactivate buzzer.

=36.

.

=

.

0

1

.

FF

5.6 Over-temperature Protection (OTP)

When the in strument detects abnormally hi gh t emperature, the system w ill
enter t he “O ver T emperature Protect” mode that w ill shut off the output and
display t he error message as shown i n t he following figure. P ress to

reset the protection and deactivate buzzer.

L

!!!!

.

V = 36.00 V

I = 40.00 A OFF

0.000 V 0.000 A

CVC

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5.7 Low Voltage Protection (ACD)

When the machine h as d etected abnormally l ow A C power input, system will
enter the “ AC Detect Low Protect” mode that will shut off output and display
the error m essage sh own i n t he following figure. P ress to reset th e

protection and deactivate buzzer.

L

! ! ! !

.

.

L

L

5.8 Error Input Message

When u sers en ter a v oltage o r cu rrent setting t hat is beyond t he a cceptable
range, system will display “RANGE ERROR” in response and show users the
correct input range. Press to re-enter the voltage/current setting.

!!!!

:
:

.

63

.

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6. Remote Interface communication protocol

The communication pr otocol i ncludes standard SCPI c ommands and a f ew
proprietary commands which follow the SCPI convention.

6.1 Prefaces

The SCPI i nterface en ables u sers to ope rate the m odel
XLN3640/XLN6024/XLN8018/XLN10014 supply through a computer or a
terminal equipped w ith IEEE-488.2 G PIB or U SB i nterface. Additionally, it
allows remote control and monitoring.

SCPI I EEE-488.2 version supports multi units control capability t hat allows a
user to control up to 32 XLN3640/XLN6024/XLN8018/XLN10014 units.

6.2 Parameters Definition

Type

Valid Arguments

<boolean >

" ON" or 1, " OFF" or 0

<NR1 > The data format <NR1> is defined in IEEE-488.2 for

integers. Zero, positive and negative integer numeric
values are valid data.

<NRf >

The data format <NRf> is defined in IEEE-

488.2 for

flexible Numeric Representation. Zero, positive and
negative floating-point numeric values a

re some

examples of valid data.

<string >

Characters enclosed by single or double quotes

<LF > Line Feed, Hex code is 0x0Ah

<CR> Carriage Return, Hex code is 0x0Dh

<END > End or identify

Note: All c ommands are t erminated with < CR> and < LF> characters. A

space is a lways i ncluded in between the c ommand and the parameter.
For e xample, to s et t he G PIB a ddress of 10 t o a
XLN3640/XLN6024/XLN8018/XLN10014. The command line is sent:

ADDR 10<CR><LF>

Note: The <LF> and <CR> are not presented in the following examples and

command descriptions. However, users must add them as termination

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characters at the end of each command when programming.

6.3 The Error/Event List

SCPI interface can offer an error/event list that contains up to 10 errors/events.
Users can read t he errors/events through the “ error?” c ommand i n a first-in
first-out manner. Once an error/event is read, the read process will clear it from
the memory. To clear all errors/events from the memory, the “*CLS” command
is used.

Error

Description

-000 No error

-001 Command error

-002 Execution error

-003 Query error

-004 Input Range error

-005 Parallel/Series function, Error mode

-006 Parallel/Series function, Multi-Master

-007 Parallel/Series function, No Slave found

-008 Parallel/Series function, Communication with Slave A
error

-009

Parallel/Series function, C

ommunication with Slave B

error

-010 Parallel/Series function, C

ommunication with Slave C

error

-011 Parallel/Series function, Sync. signal error when
output on

-012 Parallel/Series function, Sync. signal error when
output off

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6.4 Remote Communication Protocol

Command Description

ADDRess set the address of the machine
ADDRess? return the address of the machine
BEEP set beep on(1) or off(0)

CLR

clear protect status

CURRent set current
CURRent? return current setting

ERRor?

return error message

IOUT? current readback
ISET set current

ISET?

return current setting

LOCK set rotary and keypad lock on(1) or off(0)
MODEL? return model name
OCP set current protect to off(0) or on(1)
OISET set overcurrent protect level
OISET? return overcurrent value
OPP set power protect to off(0) or on(1)
OPSET set overpower protect level

OPSET?

Return overpower value

OUT set output on(1) or off(0)
OVP set voltage protect to off(0) or on(1)

OVSET

set overvoltage protect level

OVSET? return overvoltage value
STATUS? return status of the machine
VERsion? return version number
VO LTa ge set voltage
VOLTage? return voltage setting
VOUT? voltage readback
VSET Set up output voltage

VSET?

return voltage setting

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Examples:

Q 1:How to set GPIB address?

ADDR 10 ==>address is 10

Q 2:How to read back GPIB address?

ADDR?

==>return GPIB address

ADDRESS?

==>return GPIB address

Q 3:How to set up buzzer?

BEEP 1

==>trigger beep to on

BEEP off

==>trigger beep to off

Q 4:How to clear the protecting state?

CLR ==>clear protect status

Q 5:How to read back to error information?

ERR?

==>return error code

Q 6:How to set up voltage?

VSET 10

==>set voltage to 10V

VOLT 3.3V

==>set voltage to 3.3V

VOLTAGE 45

==>set voltage to 45V (for XLN6024)

Q 7:How to read the voltage setting value?

VSET? ==>return voltage setting
VO LT? ==>return voltage setting
VOLTAGE? ==>return voltage setting

Q 8:How to set up current?

ISET 1.1

==>set current to 1.1A

CURR 4.3022

==>set current to 4.3022A

CURRENT 0.250

==>set current to 250mA

Q 9:How to read the setting value of current?

ISET?

==>return current setting

CURR?

==>return current setting

CURRENT? ==>return current setting

Q 10:How to read the voltage outputting value?

VOUT?

==>return voltage output

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Q 11:How to read the current outputting value?

IOUT? ==>return current output

Q 12:How to lock buttons and the rotary knob?

LOCK 1

==>lock the keypad and knob

LOCK ON

==>lock the keypad and knob

Q 13:How to read the product model number?

MODEL?

==>return machine model name

Q 14:How to set up OVP function?

OVP 1 ==>enable OVP protect
OVP OFF ==>disable OVP protect

Q 15:How to set up OVP voltage value?

OVSET 38

==>set OVP level to 38 V

Q 16:How to set up OCP function?

OCP 1

==>enable OCP protect

OCP OFF

==>disable OCP protect

Q 17:How to set up OCP electric current value?

OISET 40

==>set OCP level to 40 A

Q18:How to set up OPP function?

OPP 1 ==>enable OPP protect
OPP OFF ==>disable OPP protect

Q 19:How to set up OPP power value?

OPSET 1000

==>set OPP level to 1000 W

Q 20:How to set up output?

OUT 1

==>output on

OUT OFF

==>output off

Q 21:How to read state value?

STATUS?

==>return status value

Q 22:How to read the firmware version?

VER? ==>return version information

VERSION?

==>return version information

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6.5 SCPI Conformity Information

The X LN s eries is e ntirely c ompatible w ith a ll I EEE-488.2 and S CPI
commands ( 1995). C ommands a re included i n S CPI c ommands ( in Vol. 2 ,

1995).

6.5.1 Common SCPI commands

Command Explanation

*CLS Clear status (include error code)

*IDN? Response:<Manufacturer>, <model>, <serial number>,

<firmware type, & version >

*RCL

Recalls settings from memory. Memory numbers from 0

to 9 are valid.

*RST Resets the power supply to its power on state.

* S AV 1. Saves defined parameters

2. Saves current settings to memory. Memory numbers

from 0 to 9 are valid.

Examples:

Q 23:How to store the voltage/current settings to memory devices?

* S AV 5 ==>save current settings to memory location 5

Q 24:How to recall the voltage/current settings from memory devices?

*RCL 3 ==>recall setting from memory location 3

Q 25:How to set up software reset?

*RST

Q 26:How to identify the instrument’s model number?

*IDN?

Q 27:How to clear error message?

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*CLS

6.5.2 SCPI Command subsystem

ABORt

Abort the Output Action

FETCh Fetch Subsystem

:CURRent? Return the fetched output current

:VOLTage? Return the fetched output voltage

MEASure Measure subsystem

:CURRent? Return the measured output current

:VOLTage? Return the measured output voltage

MEMory Memory Subsystem

<NR1 | ? > select or return memory number, range

from 0 - 9

:VSET <NRf | ? > set or return voltage:0-36V/0-60V

:ISET <NRf | ? > set or return current:0-40A/0-24A

:S AV E store memory subsystem parameters

OUTput Output Subsystem

<Boolean > enable or disable output action

? return output state

:LIMit

:VOLTage <NRf | ? > set or return voltage limit value

:CURRent <NRf | ? > set or return current limit value

:STATe? Return output mode (CV or CC)

:PROTection

:CLEar Reset latched protection

PROGram Program Subsystem

<NR1 | ? > select or return memory number, range

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from 1 - 10

:CLEar clear program n parameters

:ALL clear all program parameters

:NEXT <NR1 | ? > ser or return next program number (1 -

10 , 0 for end)

:REPeat <NR1 | ? > set or return repeat times (max.

50000)

:RUN<Boolean | ? > set or query program on/off state

:S AV save program parameters

:STEP < Boolean | ? > set or return step number

:CURRent <NRf | ? > set or return step n current setting

:ONTimet <NRf | ? >

set or return step n output time (0.050 ­20000S)

:VOLTage <NRf | ? > set or return step n voltage setting

:TOTA[l] <NR1 | ? > set or return program n total step

numbers (max. 150)

PROTection Protection Subsystem

? return protect state

:CCCV <Boolean | ? > set or return CC to CV protect state

:CLEar Resets latched protection

:CVCC <Boolean | ? > set or return CV to CC protect state

:OCP <Boolean | ? > set or return over-current protect state

:LEVel <NRf | ? > set or return over-current protect value

:OPP <Boolean | ? > set or return over-power protect state

:LEVel <NRf | ? > set or return over-power protect value

:OVP <Boolean | ? > set or return over-voltage protect state

:LEVel <NRF | ? > set or return over-voltage protect value

PS Parallel/Series Subsystem

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:MODE <OFF/0,PARALLEL/1,SERIES/2|? >

set or return parallel/series mode

:TYPE <MASTER/0,SLAVEA/1,SLAVEB/2,SLAVEC/3|?>

set or return master/slave setting

[SOURce] Source Subsystem

:CURRent <NRf | ? > set or return current level:0-40/0-24A

:PROTection <Boolean | ? >

set or return over-current state

:LEVel <NRf | ? > set or return over-current level

:VOLTage <NRf | ? > set or return voltage level:0-36/0-60V

:PROTection <Boolean | ? >

set or return over-voltage state

:LEVel <NRf | ? > set or return over-voltage level

SY Stem System Subsystem

:BEEP <Boolean | ? > set or return BEEP state

:E5V <Boolean | ? > enable or disable extra 5V output

:ERRor? return system error

:EXTernal<OFF/0,VOLT/1,RES/2 | ? >

set or return external state

:GPIB

:ADDRess <NR1 | ? > set or return GPIB address (1-30)

:IP

:ADDRess <NR1.NR1.NR1.NR1 | ? >

set or return IP address

:CONFig <STATic/0? >

set or return IP config mode

:KEY

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:LOCK <Boolean | ? set or return key lock state

:LCD

:BL <Boolean | ? > set or return LCD backlight state

:POWer

:CURRent <NRf | ? > set or return user define current level

:STATe <Boolean | ? > set or return user define output state

:TYPE <OFF/0,LAST/1,USER/2 | ? >

set or return power up mode

:VOLTage <NRf | ? > set or return user define voltage level

:RECall

:DEFault recall factory default setting

:REMote <USB/0,GPIB/1,ETHERNET/2 | ? >

set or return remote interface

:SERies? Return series number

TIMER Timer Subsystem

<Boolean > enable or disable timer mode

? return timer state

:HOUR<NR1 | ? > set or return timer hours

:MINute<NR1 | ? > set or return timer minutes

:SECond<NR1 | ? > set or return timer seconds

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Examples:

Q 28:How to cancel all actions?

ABOR
ABORT

Q 29:How to fetch current value?

FETC:CURR?
FETCH:CURRENT?

Q 30:How to fetch voltage value?

FETC:VO LT?
FETCH:VOLTAGE?

Q 31:How to measure current?

MEAS:CURR?
MEASURE:CURRENT?

Q 32:How to measure voltage?

MEAS:V O LT ?
MEASURE:VOLTAGE?

Q 33:How to set up and read back the specific memory set?

MEM 1
MEMORY 3
MEM?
MEMORY?

Q 34:How to set up a nd read back the voltage stored in specific memory
set?

MEM:VSET 10
MEM:VSET?
MEMORY:VSET 20
MEMORY:VSET?

Q 35:How to set up a nd read back the current stored in specific memory
set?

MEM:ISET 15

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MEM:ISET?
MEMORY:ISET 25
MEMORY:ISET?

Q 36:How to save data to memory set?

MEM:S AV E
MEMORY:S AV E

Q 37:How to set up and cancel output?

OUT ON
OUTPUT 0

Q 38:How to set up and read back the voltage limit?

OUT:LIM:VO LT 3 0
OUT:LIM:VO LT?
OUTPUT:LIMIT:VOLTAGE 35
OUTPUT:LIMIT:VOLTAGE?

Q 39:How to set up and read back the current limit?

OUT:LIM:CURR 30
OUT:LIM:CURR?
OUTPUT:LIMIT:CURRENT 35
OUTPUT:LIMIT:CURRENT?

Q 40:How to set up and read back the voltage SLEW RATE?

OUT:SR:VOLT 2.4
OUT:SR:VO LT ?
OUTPUT:SR:VOLTAGE 0.01
OUTPUT:SR:VOLTAGE?

Q 41:How to set up and read back the current SLEW RATE?

OUT:SR:CURR 2.5
OUT:SR:CURR?
OUTPUT:SR:CURRENT 0.01
OUTPUT:SR:CURRENT?

Q 42:How to read back the output state?

OUT:STAT ?
OUTPUT:STAT E ?

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Q 43:How to read back the protection state?

PROT?
PROTECTION?

Q 44:How to set up and read back the CC to CV protection state?

PROT:CCCV ON
PROT:CCCV?
PROTECTION:CCCV 0
PROTECTION:CCCV?

Q 45:How to set up and read back the CV to CC protection state?

PROT:CVCC ON
PROT:CVCC?
PROTECTION:CVCC 0
PROTECTION:CVCC?

Q 46:How to clear the state of protection?

PROT:CLE
PROTECTION:CLEAR
OUT:PROT:CLE
OUTPUT:PROTECTION:CLEAR

Q 47:How to set up and read back the overcurrent protection state?

PROT:OCP ON
PROT:OCP?
PROTECTION:OCP 0
PROTECTION:OCP?
SOUR:CURR:PROT ON
SOUR:CURR:PROT?
SOURCE:CURRENT:PROTECTION 0
SOURCE:CURRENT:PROTECTION?

Q 48:How to set up and read back the overcurrent protection point?

PROT:OCP:LEV 30
PROT:OCP:LEV?
PROTECTION:OCP:LEVEL 40
PROTECTION:OCP:LEVEL?
SOUR:CURR:PROT:LEV 25
SOUR:CURR:PROT:LEV?
SOURCE:CURRENT:PROTECTION:LEVEL 35

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SOURCE:CURRENT:PROTECTION:LEVEL?

Q 49:How to set up and read back the overpower protection state?

PROT:OPP ON
PROT:OPP?
PROTECTION:OPP 0
PROTECTION:OPP?

Q 50:How to set up and read back the overpower protection point?

PROT:OPP:LEV 30
PROT:OPP:LEV?
PROTECTION:OPP:LEVEL 40
PROTECTION:OPP:LEVEL?

Q 51:How to set up and read back the overvoltage protection state?

PROT:OVP ON
PROT:OVP?
PROTECTION:OVP 0
PROTECTION:OVP?
SOUR:V O LT:PROT ON
SOUR:V O LT:PROT?
SOURCE:VOLTAGE:PROTECTION 0
SOURCE:V O LTAGE:PROTECTION ?

Q 52:How to set up and read back the overvoltage protection point?

PROT:OVP:LEV 30
PROT:OVP:LEV?
PROTECTION:OVP:LEVEL 40
PROTECTION:OVP:LEVEL?
SOUR:V O LT:PROT:LEV 25
SOUR:V O LT:PROT:LEV?
SOURCE:VOLTAGE:PROTECTION:LEVEL 35
SOURCE:VOLTAGE:PROTECTION:LEVEL?

Q 53:How to set up the buzzer?

SYS:BEEP ON
SYSTEM:BEEP 0

Q 54:How to set up the extra 5V voltage output?

SYS:E5V ON

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SYSTEM:E5V 0

Q 55:How to read back error code?

SYS:ERR?
SYSTEM:ERROR?

Q 56:How to set up and read back the external adjustment state?

SYS:EX T V O LT
SYS:EXT?
SYSTEM:EXTERNAL RESISTANCE
SYSTEM:EXTERNAL?

Q 57:How to set up and read back the GPIB address?

SYS:GPIB:ADDR 5
SYS:GPIB:ADDR?
SYSTEM:GPIB:ADDRESS 6
SYSTEM:GPIB:ADDRESS?

Q 58:How to set up and read back the IP address?

SYS:IP:ADDR 192.168.0.208
SYS:IP:ADDR?
SYSTEM:IP:ADDRESS 192.168.10.10
SYSTEM:IP:ADDRESS?

Q 59:How to set up and read back the IP mode?

SYS:IP:CONF S TAT I C
SYS:IP:CONF?
SYSTEM:IP:CONFIG STATIC
SYSTEM:IP:CONFIG?

Q 60:How to set up and read back the key locking?

SYS:KEY:LOCK ON
SYSTEM:KEY:LOCK?

Q 61:How to set up and read back the LCD backlighting function?

SYS:LCD:BL ON
SYSTEM:LCD:BL?

Q 62:How to set up and read back the booting mode?

SYS:POW:TYPE LAST

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SYS:POW:TYPE?
SYS:POWER:TYPE USER
SYS:POWER:TYPE?
SYSTEM:GPIB:ADDRESS?

Q 63:How to set up and read back the voltage under user-defined booting
mode?

SYS:POW:VOLT 1 0
SYS:POW:VOLT ?
SYSTEM:POWER:VOLTAGE 20
SYSTEM:POWER:VOLTAGE?

Q 64:How to set up and read back the current under user-defined booting
mode?

SYS:POW:CURR 10
SYS:POW:CURR?
SYSTEM:POWER:CURRENT 20
SYSTEM:POWER:CURRENT?

Q 65:How to set up a nd read back the output state under user-defined
booting mode?

SYS:POW:STAT ON
SYS:POW:STAT ?
SYSTEM:POWER:STATE 0
SYSTEM:POWER:STAT E ?

Q 66:How to recall back default setting?

SYS:REC:DEF
SYSTEM:RECALL:DEFAULT

Q 67:How to set up and read back the communication interface?

SYS:REM GPIB
SYS:REM?
SYSTEM:REMOTE ETHERNET
SYSTEM:REMOTE?

Q 68:How to read back the SERIES NUMBER?

SYS:SER?
SYSTEM:SERIES?

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Q 69:How to set up and read back the output voltage?

SOUR:V O LT 3 0
SOUR:V O LT ?
SOURCE:VOLTAGE 35
SOURCE:VOLTAGE?

Q 70:How to set up and read back the output current?

SOUR:CURR 40
SOUR:CURR?
SOURCE:CURRENT 35
SOURCE:CURRENT?

Q 71:How to set up and read back parallel/series mode?

PS:MODE PARALLEL
PS:MODE?
PS:MODE 2
PS:MODE OFF

Q 72:How to set up and read back master/slave in parallel/series mode?

PS:TYPE MASTER
PS:MODE?
PS:MODE SLAVEB
PS:MODE 3

Q 73:How to set up Program function?

Refer to “Programmable capability” section for details.

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6.6 State Bit Definition

When “STATE?” command is used, the system will return three (3) bytes in

the order as shown below.

Byte 2

Byte 1

Byte 0

bit 7 - bit 0

bit 7 - bit 0

bit 7 - bit 0

The definition of each bit is described in the following:

byte 0: bit 7 OVP on/off status
bit 6 OCP on/off status
bit 5 OPP on/off status
bit 4 CC to CV on/off status
bit 3 CV to CC on/off status
bit 2 output on/off status
bit 1 LCD back light on/off status
bit 0 External 5V output on/off status
byte 1: bit 7 OVP occur flag
bit 6 OCP occur flag
bit 5 OPP occur flag
bit 4 CC to CV occur flag
bit 3 CV to CC occur flag
bit 2 AC detect low occur flag
bit 1 OTP occur flag
bit 0 reserved
byte 2: bit 7 - 0 reserved

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6.7 LAN Communication (-GL versions)

XLN series power supplies provide three LAN control modes, including Web

server, Telnet and Sockets. First, enter the first Item “System Setting” on the

menu to set the interface selection (Remote Control) to Ethernet. T hen, select

IP setting procedure as Static. An IP address is required to complete setup.

After completed, the supply will be able to use the above LAN control mode to

control the power supply.

Using Web Server

XLN series with the –GL option have a built-in Web Server. User can
control t he pow er s upply on a computer using a Web br owser. Open
Web br owser a nd i nput I P a ddress to enter the Welcome p age, as
shown below.

Enter password (default is 123456) to login the main page (Home), and
then click the links on the left column to configure or control settings.

Main Page (Home)

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The main page shows all the basic message and network information.

Setting Page (Configuration)

This page allows you to setup protection settings and reset/setup

password for the system.

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Status Page (Status)

Display the status of the system. If any error codes are shown, please

refer to “Error/Event list” section for details.

Web Control

This page allows user to set up voltage/current and output. Additionally,

the d isplay w ill a llow monitoring of t he out put v oltage/current v alue

(JAVA support is required for display).

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Using Telnet

The power supply can be controlled via Telnet over the Ethernet interface.

Simply go into command prompt under MS-DOS and enter: Telnet

<DeviceIP> 5024 (<Device IP> is IP address of the unit; 5024 is the

Telnet port). A welcome message will be shown as below:

Input SCPI command to communicate with the system, such as below:

Using Sockets

All XLN series use port 5025 to provide the standard function for SCPI

socket. U sers can use SCPI c ommands to control t he supply through

their own program by using the standard SCPI socket.

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7. Assemble Accessories

7.1 Assemble Rack Mount Brackets

The XLN3640/XLN6024/XLN8018/XLN10014 is designed to fit in a space of
one r ack uni t ( 1U) and c an be m ounted i n a s tandard 19-inch r ack p anel o r
cabinet. Rack mount brackets must be assembled before mounting the unit in a
rack. Refer to the following figure to assemble the rack mount brackets.

Rack mount Brackets

Step 1

Step 3

6

2

3

4

5

Step 2

Step 4

1

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7.2 Assembly of Output Protective Cover

(XLN6024/XLN8018/XLN10014)

Safety r egulation r equests protective cover when t he output v oltage i s higher

than 45 VDC. Therefore, there are protective covers for the output connectors

for t he XLN6024/XLN8018/XLN10014. Refer to t he f ollowing f igure for t he

assembly/disassembly of the output protective cover.

Step 2

2

1

Step 1

1

3

Step 3

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7.3 Assembly of Remote Sense Protective Cover

(XLN6024/XLN8018/XLN10014)

Safety regulation requests protective cover when the voltage is hi gher than 45

VDC. Therefore, there are protective covers for the remote sense connectors for

the XLN6024/XLN8018/XLN10014. Refer to the following figure for the

assembly/disassembly of the remote sense protective cover.

3

4

Step 4

5

Step 1

1

2

Step 5

Step 2

7

6

Step 3

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8. Accessories

Product Name: XLN3640/XLN6024/XLN8018/XLN10014

Parts List:

Item

Name & Specification

Remarks

1. Terminal Block for Rapid Plug

Connector

2. XLNRC Output Rapid Connector Includes two

solder plugs

3.

Rack mount Bracket kit

4.

Handle bar kit

5.

Operation Manual

6.

XLNPC Power Cord

7. Test Report and Certificate of

Calibration

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9. Service Information

Warranty Service: Please go the support and service section on our

website

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 the support and service section on our
website to obtain 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 charges please refer to the service and support section on our website.

Return all merchandise to B&K Precision Corp. with pre-paid shipping. The flat-rate repair

charge for Non-Warranty Service does not include return shipping. Return shipping to locations

in North America is included for Warranty Service. For overnight shipments and non-North

American shipping fees please contact B&K Precision Corp.

Include with the returned instrument your complete return shipping address, contact name,

phone number and description of problem.

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10. Limited Three-year Warranty

B&K Precision Corp. warrants to the original 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. will, 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 obtain warranty coverage in the U.S.A., this product must be registered by completing a
warranty registration form on our website

within fifteen (15) days of

purchase.

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.

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© 2010,

2009 B&K Precision Corp.

Printed in Taiwan

v030314

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Model: XLN15010, XLN30052, XLN60026

High Power Programmable DC

Power Supply

USER MANUAL

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Safety Summary

The following safety precautions apply to both operating and maintenance personnel
and must be observed during all phases of operation, service, and repair of this
instrument. Before applying power, follow the installation instructions and become
familiar with the operating instructions for this instrument.

Failure to comply with these precautions or with specific warnings elsewhere in this
manual violates 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. This is a Safety Class I instrument.

GROUND THE INSTRUMENT

To minimize shock hazard, the instrument chassis and cabinet must be
connected to an electrical ground. This instrument is grounded through the
ground conductor of the supplied, three-conductor ac power cable. The
power cable must be plugged into an approved three-conductor electrical
outlet. Do not alter the ground connection. Without the protective ground
connection, all accessible conductive parts (including control knobs) can
render an electric shock. The power jack and mating plug of the power cable
meet IEC safety standards.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE

Do not operate the instrument in the presence of flammable gases or fumes.
Operation of any electrical instrument in such an environment constitutes a
definite safety hazard.

KEEP AWAY FROM LIVE CIRCUITS

Instrument covers must not be removed by operating personnel. Component
replacement and internal adjustments must be made by qualified maintenance
personnel. Disconnect the power cord before removing the instrument
covers and replacing components. Under certain conditions, even with the
power cable removed, dangerous voltages may exist. To avoid injuries,
always disconnect power and discharge circuits before touching them.

DO NOT SERVICE OR ADJUST ALONE

Do not attempt any internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.

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DO NOT SUBSTITUTE PARTS OR MODIFY THE INSTRUMENT

Do not install substitute parts or perform any unauthorized modifications to
this instrument. Return the instrument to B&K Precision for service and
repair to ensure that safety features are maintained.

WARNINGS AND CAUTIONS

WARNING and CAUTION statements, such as the following examples,

denote a hazard and appear throughout this manual. Follow all instructions
contained in these statements.

A WARNING statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in injury or death to
personnel.

A CAUTION statement calls attention to an operating procedure, practice, or

condition, which, if not followed correctly, could result in damage to or
destruction of part or all of the product.

WARNING:

Do not alter the grou

nd connection. Without the protective ground
connection, all accessible conductive parts (including control knobs)
can render an electric shock. The power jack and mating plug of the

power cable meet IEC safety standards.

WARNING:

To avoid electrical

shock hazard, disconnect power cord before

removing covers. Refer servicing to qualified personnel.

CAUTION:

Before connecting the line cord to the AC mains, check the rear panel
AC line voltage indicator. Applying a line voltage other than the

indicat

ed voltage can destroy the AC line fuses. For continued fire

protection, replace fuses only with those of the specified voltage and

current ratings.

CAUTION:

This product uses components which can be damaged by

electro-static discharge (ESD). To avoid

damage, be sure to follow

proper procedures for handling, storing and transporting parts and

subassemblies which contain ESD-sensitive components.

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1-1

Store/ Maintain

Storage

When this device i s n ot i n u se, p roperly p ackage i t and store i t in an
environment suitable for storage (if present in a good preserving e nvironment,
the packaging process can be waived).

Freight

While m oving t his pr oduct, m ove i t by us ing the original packaging to pack
this pr oduct i n a dvance. I f t he packaging material i s l ost, u se an eq uivalent
buffer material t o r eplace i t i n p ackaging; and with e xternal m arks i ndicating
“fragile & water-prevention”.

Maintenance

Please r eturn the pow er s upply to fa ctory fo r any repair, s ervice, or
maintenance.

Disposal

When t he device is in an unus able c ondition a nd cannot b e r epaired, p lease
discard it a ccording t o y our c ompany’s disposal p rocedures or local l egal
procedures. Do not discard arbitrarily to avoid polluting the environment.

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1-2

Table of Contents

1. Introduction ......................................................... 5

1.1 Product Summary ............................................................. 5

1.2 Features ............................................................................. 5

1.3 Specifications.................................................................... 7

1.4 Package Contents .............................................................. 9

1.5 Environmental Conditions .............................................. 10

1.6 Storage ............................................................................ 10

1.7 Installing Rackmount Brackets ....................................... 11

1.8 Removing Protective Covers .......................................... 12

1.9 Connecting AC Input ...................................................... 13

1.10 Fuses ............................................................................... 16

1.11 Warm -up Time ................................................................ 16

1.12 Power-off Procedure ....................................................... 16

1.13 Caution............................................................................ 16

2. Front Panel Operation ...................................... 18

2.1 Front Panel Overview ..................................................... 18

2.2 Menu Settings and Configuration ................................... 21

2.3 Rear Panel Overview ...................................................... 30

Operation Instructions ........................................... 32

2.4 Voltage Setting ................................................................ 32

2.5 Current Setting ................................................................ 32

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2.6 Overvoltage Protection OVP .......................................... 32

2.7 Overcurrent Protection OCP ........................................... 33

2.8 Overpower Protection OPP ............................................ 33

2.9 Voltage Output ................................................................ 33

2.10 Control Voltage Output with Rotary knob ...................... 33

2.11 Timer Function ............................................................... 34

2.12 Parallel Mode Setting ..................................................... 34

2.12.1 Error Message of Parallel Connection ...................................... 36

2.13 External Analog Interface ............................................... 38

2.13.1 Analog Interface Pin Assignment ............................................... 38

2.13.2 Functions.................................................................................... 39

2.14 Programmable Sequence Mode (List mode) .................. 51

2.15 Multi-unit Connection Mode (RS485) ........................... 57

3. Protection and Error Messages ....................... 58

3.1 Overvoltage Protection (OVP) ....................................... 58

3.2 Overcurrent Protection (OCP) ........................................ 58

3.3 Overpower Protection (OPP) .......................................... 58

3.4 Constant Voltage Protection (CV TO CC) ...................... 59

3.5 Constant Current Protection (CC TO CV) ...................... 59

3.6 Overtemperature Protection (OTP) ................................ 59

3.7 Low Voltage Protection (ACD) ...................................... 60

3.8 Input Error Message ....................................................... 60

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4. Remote Communication ................................... 61

4.1 Interface Connection ....................................................... 61

4.2 Parameters Definition ..................................................... 66

4.3 The Error/Event List ....................................................... 67

4.4 Remote Communication Protocol .................................. 69

4.5 SCPI Conformity Information ........................................ 72

4.5.1 Common SCPI commands .......................................................... 72

4.5.2 SCPI Command subsystem......................................................... 73

4.6 State Bit Definition ......................................................... 84

4.7 Multi-Unit Programming Commands ............................. 85

4.7.1 System Control Commands ........................................................ 85

4.7.2 Output Control Commands ........................................................ 88

4.7.3 Synchronous Control Commands ............................................... 93

4.7.4 Error List .................................................................................... 96

5. Calibration ......................................................... 97

5.1 Required Equipment ....................................................... 97

5.2 Voltage Calibration ......................................................... 98

5.3 OVP Calibration ........................................................... 101

5.4 Current Calibration ....................................................... 102

5.5 OCP Calibration ............................................................ 104

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5

1. Introduction

1.1 Product Summary

B&K P recision’s high voltage XLN series are programmable D C pow er
supplies with single outputs that offer maximum power output up to 1560 W.
With a 1 6-bit D /A, A /D c onverter e mbedded, the p ower supplies provide
voltage a nd current r esolution of 1 mV and 1 mA. By c onnecting up t o 4
power supplies in parallel, maximum output power can reach 6240 W.

Additionally, the pow er s upplies have ex tensive protection features f or safe
operation, such as overvoltage protection (OVP), overcurrent protection
(OCP), a nd overpower protection ( OPP). For r emote ope ration, t he h igh
voltage X LN series o ffers standard USB, R S-485, a nd a nalog i nterface f or
versatile r emote c ontrollability. Optionally, us ers can a lso a dd LAN a nd
GPIB interface capability (-GL versions).

1.2 Features

1) Output Voltage & Current

Voltage output range: 5 – 150 V (XLN15010)

5 – 300 V (XLN30052)

5 – 600 V (XLN60026)
Current output range: 0.04 – 10.4 A (XLN15010)

0.02 – 5.2 A (XLN30052)

0.01 – 2.6 A (XLN60026)
Power output range: 0 – 1560 W

2) Rotary knob, numerical keys and function keys

The rotary knob can be used t o rapidly ch ange the o utput voltage s etting
and si mulate t he surge of the voltage output. It offers a good s olution for
testing triggering c ircuits. N umerical k eys allow f or direct e ntry of
parameters. U sing function k eys t o s witch modes m akes t he overall
operation more convenient.

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