B+K precision XLN15010 User manual

Model: XLN15010, XLN30052, XLN60026
High Power Programmable DC
Power Supply
USER MANUAL

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.

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 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 qualif
ied 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 procedures for handling, storing and transporting parts and
subassemblies which contain ESD
-sensitive components.

1-1
Store/ Maintain
Storage
When this device is not in use, properly package it and store it in an
environment suitable for storage (if present in a good preserving environment,
the packaging process can be waived).
Freight
While moving this product, move it by using the original packaging to pack
this product in advance. If the packaging material is lost, use an equivalent
buffer material to replace it in packaging; and with external marks indicating
“fragile & water-prevention”.
Maintenance
Please return the power supply to factory for any repair, service, or
maintenance.
Disposal
When the device is in an unusable condition and cannot be repaired, please
discard it according to your company’s disposal procedures or local legal
procedures. Do not discard arbitrarily to avoid polluting the environment.

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

1-3
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

1-4
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

5
1. Introduction
1.1 Product Summary
B&K Precision’s high voltage XLN series are programmable DC power
supplies with single outputs that offer maximum power output up to 1560 W.
With a 16-bit D/A, A/D converter embedded, the power supplies provide
voltage and current resolution of 1 mV and 1 mA. By connecting up to 4
power supplies in parallel, maximum output power can reach 6240 W.
Additionally, the power supplies have extensive protection features for safe
operation, such as overvoltage protection (OVP), overcurrent protection
(OCP), and overpower protection (OPP). For remote operation, the high
voltage XLN series offers standard USB, RS-485, and analog interface for
versatile remote controllability. Optionally, users can also add LAN and
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 – 10.4A(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 to rapidly change the output voltage setting
and simulate the surge of the voltage output. It offers a good solution for
testing triggering circuits. Numerical keys allow for direct entry of
parameters. Using function keys to switch modes makes the overall
operation more convenient.

6
3) Precise voltage and current measurement
Besides the precise output, the high voltage XLN series also offers the
capability to measure voltage and current accurately (readback), saving
users the additional expense and space for extra measuring instruments.
4) Internal memory and timer function
The high voltage XLN series provides internal memory for storage and
retrieval of 10 instrument settings. The instruments provide one timer with
the resolution of 1 second. The timers are used to time the outputs. When
the timer counts down to zero the power supply will automatically turn the
output off. This feature is useful when the supply is providing power to the
test object in a burn-in room where operators can precisely set the time
when the equipment is to shut off.
5) Programmable sequence mode (List mode)
Programmable list mode allows users to create test sequences to store and
run inside the power supply using remote commands sent via USB, GPIB,
and LAN. Up to 10 program sequences can be stored, each allowing a
maximum of 150 steps.
6) OVP (overvoltage protection), OCP (overcurrent protection), OPP
(overpower protection) and key lock functions
The overvoltage protection (OVP), overcurrent protection (OCP) and
overpower protection (OPP) features limit the maximum output current and
voltage to avoid damages to the unit under test (UUT). The key lock
feature disables all keys except the CLR key. It prevents damaging the
UUT by accidentally entering the wrong settings.
7) Parallel connection mode
The parallel connection mode of two or more units (maximum 4 units)
significantly increases the combined output power to a maximum of 6240
W. For example, in parallel connection mode withfour XLN15010, the
maximum output is 150 V/41.6 A.
8) Multi-unit connection mode
The RS 485 interface can be used to connect multiple power supplies in
series, up to maximum of 31 units. They can be controlled via USB
interface with a computer.

7
1.3 Specifications
Note: All specifications apply to the unit after a temperature
stabilization time of 15 minutes over an ambient temperature range
of 23 °C ± 5 °C. Specifications are subject to change without
notice.
Specifications
Models
XLN15010
XLN30052
XLN60026
Output Rating
Output Voltage
5 – 150 V
5 – 300 V
5 – 600 V
Output Current
0.04 – 10.4 A
0.02 – 5.2 A
0.01 – 2.6 A
Output Power
1560 W
Line Regulation
Voltage
≤17 mV
≤32 mV
≤ 62 mV
Current ≤0.1% + 10.4
mA
≤0.1% + 5.2 mA ≤ 0.1% + 2.6 mA
Load Regulation
Voltage
≤17 mV
≤32 mV
≤ 62 mV
Current
40.4 mA
20.8 mA
10.4 mA
Ripple/Noise (20Hz-20MHz)
Normal Mode Voltage
( ≥0.5 % of max.
power)
≤10 mVrms/≤
100 mVpp
≤25 mVrms/≤
150 mVpp
≤ 50 mVrms/≤
300 mVpp
Normal Mode Current
≤15 mA
≤10 mA
≤ 5 mA
Programming and Readback Resolution
Voltage/Current
10 mV/1 mA
10 mV/1 mA
10 mV/1 mA

8
Programming and Readback Accuracy (% output+offset)
Voltage
0.05 %+75 mV
0.05 %+150 mV
0.05%+300mV
Current
0.1 %+30 mA
0.1 %+15.6 mA
0.1%+7.8mA
General
Transient Response Time
≤ 2 ms
≤ 2 ms
≤ 2 ms
Efficiency
≥ 80 %
≥ 80 %
≥ 80 %
OVP Adjustment Range 5 – 158 V 5 – 315 V
5 – 630 V
OVP Accuracy 750 mV 1.5 V
3 V
OCP Accuracy 104 mA 52 mA
26 mA
Average Command Response
Time
50 ms 50 ms 50 ms
Power Factor Correction ≥ 0.99
(Full load) ≥ 0.99 (Full load) ≥ 0.99 (Full
load)
Remote Sense Compensation 5V 5V
2V
Rising Time at Full Load
≤ 100 ms
≤ 100 ms
≤ 100 ms
Rising Time at No Load
≤ 100 ms
≤ 100 ms
≤ 100 ms
Falling Time at Full
Load
≤ 100 ms ≤ 100 ms ≤ 100 ms
Falling Time at No Load
≤ 1000 ms ≤ 2000 ms
≤ 3000 ms
Standard Interface
USB, RS485, Analog Interface
Optional Interface
LAN, GPIB
AC Line Rated Input
Voltage
100 – 240 VAC
(Full load)
Tolerance/Variation in
Voltage
-15% to +10%
(10% power de-rating mode
when voltage under 95 VAC)
Rated Frequency 47 Hz-63 Hz
Maximum Rated Input Power 1950 VA

9
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 44.2 x 460 mm)
Weight 19.8 lbs. (9 kg)
To ensure the most current version of this manual, please download the latest
version here: http://www.bkprecision.com/search/XLN15010
For current up-to-date product information, please visit www.bkprecision.com
1.4 Package Contents
Please inspect the instrument mechanically and electrically upon
receiving it. Unpack all items from the shipping carton, and check for
any obvious signs of physical damage that may have occurred during
transportation. Report any damage to the shipping agent immediately.
Save the original packing carton for possible future reshipment. Every
power supply is shipped with the following contents:
• XLN15010/XLN30052/XLN60026 Power supply
• User Manual
• AC power cord
• Certificate of Calibration
• Test Report
• Rackmount kit
Verify that all items above are included in the shipping container. If
anything is missing, please contact B&K Precision.

10
1.5 Environmental Conditions
1. Do not locate or operate this product in an environment with dust,
vibration, or corrosive gas and do not expose this product directly to
the sunlight. Operate it in an environment with temperature 0--40oC
& relative humidity 20%--80%. Pause the operation when ambient
temperature is over 40oC; undo the operation only after the ambient
temperatures drops to the acceptable temperature range. Operating
temperature over the above range would damage the instrument.
2. This product is equipped with one blow-out type cooling 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 with a space above 10 cm away from the wall. 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 source, it is recommended that it be operated in a low
power noise environment with proper earth ground. If the power
noise is unavoidable, please install a power filter.
1.6 Storage
The storage temperature range of this product is within -10ºC - 70ºC and
R.H. should be within 80% without moisture condensing. If not operating
this product for a long time interval, pack it with original packaging or
similar one and put it in a dry place without exposure to direct sunlight.

11
1.7 Installing Rackmount Brackets
The power supply is designed to fit in a space of one rack unit (1U) and can be
mounted in a standard 19-inch rack panel or 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
234
5
Step 2
Step 4
1

12
1.8 Removing Protective Covers
Output Protection Covers
Safety regulation requests protective cover when the output voltage is higher
than 45 VDC. Therefore, there are protective covers for the output connector of
the power supply. Refer to the following figure for the assembly/disassembly
of the output protective cover.
Remote Sense Protection Covers
Safety regulation requests protective cover when the voltage is higher than 45
VDC. Therefore, there are protective covers for the remote sense connector of
the power supply. Refer to the following figure for the assembly/disassembly of
the remote sense protective cover.
Step 2
2
1
Step 1
13
Step 3

13
1.9 Connecting AC Input
The power supply’s AC input is rated for 100 V – 240 V, with frequency
of 47 Hz – 63 Hz. Before connecting to an external AC power source, be
sure that the power switch is in the OFF state and use the supplied power
cord assembly. connected.
Warning:
SHOCK HAZARD The power cord provides a chassis
ground thought a third conductor
. Verify that your
power outlit is of the three-conductor type with the
correct pin connected to earth ground.
Follow the illustrations below to connect the AC power cord to the AC input
of the power supply in the rear panel.
1. First, connect the input receptacle (green terminal block) of the cable to
the input terminals of the power supply.
2. Align the power cord housing mounting holes on the left and right side
3
4
Step 4
5
Step 1
12
Step 5
Step 2
76
Step 3

14
to the screw holes on the power supply.
3. Use only the included screws to fasten and secure the cable housing
assembly
Warning:
The power cord supplied with this product is certified for
safety. In case the supplied cable assembly needs to be
replaced, or an extension cable must be added, be
sure that it can meet the required power ratings of this
product. Any misuse
voids the warranty of this
product.
Refer to the descriptions below to connect the other end of the AC power cord
to the AC distribution panel.

15
Warning:
The power cord supplied with this product is certified for
safety. In case the supplied cable assembly needs to be
replaced, or an extension cable must be added, be
sure that it can meet the required power ratings of this
product. Any misuse voids the
warranty of this
product.
Connect the three terminals L(BlackLine), N(WhiteNeutral), and
G(GreenGround) on the other end of the power cord to your AC
distribution panel.
CAUTION: Connection of this power supply to an AC power source
should be made by a qualified electrician or other qualified personnel.
Incorrect wiring may damage the power supply or cause a fire hazard.
Warning:
SHOCK HAZARD turn off AC power before making
rear panel connections
. All wires must be properly
connected with screws securely tightened
GNL

16
1.10 Fuses
This product is a switching mode power supply. The fuse installed inside
should not break under normal operation. In case the fuse is blown, it may
indicate a malfunction in the unit. In this event, contact B&K Precision.
Warning:
Any disassembling of the casing or changing the fuse not
performed by an authorized service technician will void
the warranty of the instrument.
1.11 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 15 minutes.
1.12 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 position, the inner fans will still run for approximately 10-15
seconds to carry on the inside electric capacitor discharge process per safety
code requirement. Once the discharge process is complete, this product will
carry out the automatic shut-down process.
1.13 Caution
A. Do not connect multiple power supplies in series as it may cause damage
or malfunction.
B. While in parallel connection mode, the output voltage of each 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 damage its internal components.
C. When the AC input voltage is lower than the full-load voltage which is
100 VAC, the supplies will activate an inner overtemperature protector
and cut off the output in response to the condition. To ensure that the
entire test process can be completed smoothly, confirm that the input AC

17
voltage is within the specified range.