GW Instek PEL-2000A Series, PEL-2004A, PEL-2002A User Manual

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Programmable DC Electronic Load

PEL-2000A Series

USER MANUAL

GW INSTEK PART NO. 82EL-2004AEA1

ISO-9001 CERTIFIED MANUFACTURER

99 Washington Street Melrose, MA 02176 Phone 781-665-1400 Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

January 2016

This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of the Good Will company.

The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the right to change specification, equipment, and maintenance procedures at any time without notice.

Table of Contents

SAFETY INSTRUCTIONS ................................................... 5

GETTING STARTED ......................................................... 10

Main Features ...................................... 12

Series Overview ................................... 13

Package Contents and Accessories....... 15

Measurement Overview ....................... 16

Front Panel Overview ........................... 17

Display Overview – Mainframe ............ 23

Rear Panel Overview ............................ 27

Front Panel Overview – Load Module ... 30 LED Display Overview – Load Module .. 34

Installation .......................................... 37

Load Connections ................................ 45

Frame Link Connection ........................ 57

Channel Control Connection ................ 59

Go/NoGo Connection .......................... 62

OPERATING DESCRIPTION ............................................. 63

Operating Mode Description ............... 64

Parallel Unit Mode ............................... 75

Run Program ........................................ 77

Sequence ............................................. 80

OCP Test Automation .......................... 85

Parallel Dynamic Loading .................... 86

Configurations Description .................. 87

Interface and File System ..................... 97

TUTORIALS .................................................................... 104

Local loads ........................................ 105

Single Channel Load .......................... 107

PEL-2000A Series User Manual

Parallel Load Modules ........................ 109

Programming ..................................... 111

Sequences .......................................... 113

Frame Link ......................................... 114

Channel Control ................................. 116

General Configuration Options .......... 118

OPERATION ................................................................... 119

Local Mode Operation ....................... 123

Mainframe Basic Operation ............... 130

Creating a Program Sequence ............ 156

Edit Sequence .................................... 169

OCP Test Automation ......................... 179

Channel Configuration ....................... 186

Mainframe Configuration ................... 215

Interface Configuration (settings) ...... 230

Save / Recall ...................................... 236

INTERFACE .................................................................... 267

Interface Configuration ...................... 268

FAQ ............................................................................... 276

APPENDIX ..................................................................... 277

Fuse Replacement .............................. 277

Firmware Update ............................... 278

Calibration ......................................... 279

Range Chart ....................................... 280

Default Settings ................................. 285

Specifications .................................... 287

Dimensions ....................................... 298

EC Declaration of Conformity ............. 300

INDEX ............................................................................ 301

SAFETY INSTRUCTIONS

WARNING

Warning: Identifies conditions or practices that could result in injury or loss of life.

CAUTION

Caution: Identifies conditions or practices that could result in damage to THE PEL-2002A/2004A or to other properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

SAFETY INSTRUCTIONS

This chapter contains important safety instructions that you must follow when operating the PEL-2002A/PEL-2004A, and when keeping it in storage. Read the following before operating the PEL-2002A/2004A to ensure your safety and to keep the PEL-2000A series in the best possible condition.

Safety Symbols

These safety symbols may appear in this manual or on the PEL2002A/2004A.

Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.

Safety Guidelines

General Guideline

CAUTION

 Do not place any heavy object on the PEL-

2002A/2004A.

 Avoid severe impact or rough handling that

leads to damaging the PEL-2002A/2004A.

 Do not discharge static electricity to the PEL-

2002A/2004A.

 Do not block or obstruct the cooling fan vent

openings.

 Do not perform measurement at circuits directly

connected to Mains (Note below).

 Do not disassemble the PEL-2002A/2004A

unless you are qualified as service personnel.

 The equipment is not for measurements

performed for CAT II, III and IV.

(Measurement categories) EN 61010-1:2010 specifies the measurement categories and their requirements as follows. The PEL-2002A/2004A falls under category I.

 Measurement category IV is for measurement performed at the

source of low-voltage installation.

 Measurement category III is for measurement performed in the

building installation.

 Measurement category II is for measurement performed on the

circuits directly connected to the low voltage installation.

 Measurement category I is for measurements performed on

circuits not directly connected to Mains.

PEL-2000A Series User Manual

SAFETY INSTRUCTIONS

Power Supply

WARNING

 AC Input voltage: 115V/230V switchable,

50/60Hz

 The power supply voltage should not fluctuate

more than 15%.

 Connect the protective grounding conductor of

the AC power cord to an earth ground, to avoid electrical shock.

Fuse

WARNING

 Fuse type: T3.15A/250V

 Make sure the correct type of fuse is installed

before power up.

 To avoid fire, only replace the fuse with the

specified type and rating.

 Disconnect the power cord before fuse

replacement.

 Make sure the cause of a fuse blowout is fixed

before replacing the fuse.

Cleaning the PEL-2000A

 Disconnect the power cord before cleaning.

 Use a soft cloth dampened in a solution of mild

detergent and water. Do not spray any liquid.

 Do not use chemicals or cleaners containing

harsh material such as benzene, toluene, xylene, and acetone.

Operation Environment

 Location: Indoor, no direct sunlight, dust free,

almost non-conductive pollution (Note below)

 Temperature: 0°C to 40°C

 Altitude: Up to 2000m

 Transient Overvoltage on the main supply is

2500V.

PEL-2000A Series User Manual

(Pollution Degree) EN 61010-1:2010 specifies the pollution degrees and their requirements as follows. THE PEL-2002A/2004A falls under degree 2.

Pollution refers to “addition of foreign matter, solid, liquid, or

gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.

 Pollution degree 1: No pollution or only dry, non-conductive

pollution occurs. The pollution has no influence.

 Pollution degree 2: Normally only non-conductive pollution

occurs. Occasionally, however, a temporary conductivity caused by condensation must be expected.

 Pollution degree 3: Conductive pollution occurs, or dry, non-

conductive pollution occurs which becomes conductive due to condensation which is expected. In such conditions, equipment is normally protected against exposure to direct sunlight, precipitation, and full wind pressure, but neither temperature nor humidity is controlled.

Storage environment

 Location: Indoor

 Relative Humidity: < 80%

 Temperature: −10°C to 70°C

Disposal

Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.

SAFETY INSTRUCTIONS

Green/ Yellow:

Earth

Blue:

Neutral

Brown:

Live (Phase)

Power cord for the United Kingdom

When using the PEL-2002A/2004A in the United Kingdom, make sure the power cord meets the following safety instructions.

NOTE: This lead/appliance must only be wired by competent persons

WARNING: THIS APPLIANCE MUST BE EARTHED

IMPORTANT: The wires in this lead are coloured in accordance with the following code:

As the colours of the wires in main leads may not correspond with the coloured marking identified in your plug/appliance, proceed as follows:

The wire which is coloured Green & Yellow must be connected to the Earth terminal marked with either the letter E, the earth symbol or coloured

Green/Green & Yellow.

The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black.

The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red.

If in doubt, consult the instructions provided with the equipment or contact the supplier.

This cable/appliance should be protected by a suitably rated and approved HBC mains fuse: refer to the rating information on the equipment and/or user instructions for details. As a guide, a cable of 0.75mm2 should be protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used.

Any exposed wiring from a cable, plug or connection that is engaged in a live socket is extremely hazardous. If a cable or plug is deemed hazardous, turn off the mains power and remove the cable, any fuses and fuse assemblies. All hazardous wiring must be immediately destroyed and replaced in accordance to the above standard.

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PEL-2000A Series User Manual

Main Features ................................................................. 12

Series Overview ............................................................... 13

Package Contents and Accessories .................................. 15

Measurement Overview ................................................... 16

Front Panel Overview ...................................................... 17

Display Overview – Mainframe ........................................ 23

Rear Panel Overview ........................................................ 27

GETTING STARTED

This chapter describes the features and functions of the PEL-2002A/2004A, including the front and rear panel appearance, panel installation and connection types. Use the Tutorial section for quick access to step by step instructions on the main functions.

GETTING STARTED

Front Panel Overview – Load Module ............................... 30

LED Display Overview – Load Module ............................. 34

Installation ..................................................................... 37

Load Module Installation ..................... 37

GPIB Installation ................................. 40

Rack Mount Installation ....................... 41

Channel Number .................................. 42

Power Up & Self Test ........................... 43

Load Connections ........................................................... 45

Precautions and Procedures ................ 45

Remote (Sense) Connection ................. 50

Single Load Connections ...................... 52

Parallel Load Connections.................... 54

Frame Link Connection .................................................... 57

Channel Control Connection ............................................ 59

Go/NoGo Connection ..................................................... 62

Main Features

Description

The PEL-2002A and 2004A are multichannel programmable DC electronic load mainframes. The PEL-2002A mainframe is able to hold 2 load modules, whilst the PEL-2004A is able to hold 4. The flexible module configuration allows the mainframes to either sink multiple loads independently or large loads when used in parallel.

The PEL-2000A series support four operation modes: constant current (CC), constant voltage (CV and CV+CC), constant resistance (CR) and constant power (CP). Constant current and constant resistance mode can operate in either static or dynamic mode.

Feature Overview

 Flexible operation with removable load modules

 Multiple independent isolated channels

 High performance, up to 5 digit resolution

 High slew rate enabling a high response speed

 High capacity when frame linked

 Different load module types can be used in the

same mainframe

 Dedicated parallel mode.

 Supports rack mount installation (PEL-2004A)

 Supports frame link connections, with up to 4

slave units

 Color LCD display

 120 different sets of programmable sequences

 Accurate load simulation using Sequences

 4 panel setups

 USB flash drive support

PEL-2000A Series User Manual

GETTING STARTED

Interface

 USB

 RS-232C

 GPIB (optional)

PEL-2020A PEL-2030A

PEL-2004A Mainframe

LOCAL UTILITY

CAL.

F5F4F3F2

ON / OFF

SHIFTPRESET

ENTER

FILEFUNC

LOAD

CHAN

CLEAR

4 5 6

HELP

P0 LOCK

P3P1 P2

P6P4 P5

P9P7 P8

A / B

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense

500V DC

MAX

500V DC80V DC

MAX

MAX 80V DC

V sense

LOAD

DISPLAY SHORT

STATIC/ DYNA.

A / B

80V DC

MAX MAX

80V DC

MAX 80V DC

V senseV sense

LOAD

DISPLAY SHORT

STATIC/ DYNA.

R / L

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense V sense

80V DC

MAX

80V DC

MAX

80V DC

MAX MAX

80V DC

L 20A / 80V , 100W

DC Electronic Load

20A / 80V , 100W

PEL-2020A

L 5A / 80V , 30W

DC Electronic Load

40A / 80V , 250W

PEL-2030A PEL-2040A

DC Electronic Load

70A / 80V , 350W

PEL-2041A

DC Electronic Load

10A / 500V , 350W

DC Electronic Load

PEL-2004A

PEL-2020A PEL-2030A

PEL-2020A PEL-2040A

PEL-2002A Mainframe

P8P7 P9

P5P4 P6

P2P1 P3

LOCKP0

HELP

654

1 2

CLEAR

7 8

CHAN

LOAD

FUNC FILE

ENTER

PRESET SHIFT

OFF

ON /

F2 F3 F4 F5

CAL.

UTILITYLOCAL

80V DC

MAX

MAX 80V DC

V sense

LOAD

DISPLAY SHORT

STATIC/

DYNA.

A / B

R / L

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense V sense

80V DC

MAX

80V DC

MAX

80V DC

MAX MAX

80V DC

PEL-2040A

DC Electronic Load

70A / 80V , 350W

DC Electronic Load

PEL-2002A

L20A / 80V , 100W

DC Electronic Load

20A / 80V , 100W

PEL-2020A

Series Overview

The PEL-2000A series comprises of two different Mainframes: the PEL-2002A and the PEL-2004A. The Mainframes differ by the number of load modules that can be accommodated. The PEL2002A has two load module slots whilst the PEL-2004A has 4. There are 4 different load module models, the PEL-2020A, PEL-2030A, PEL-2040A and PEL-2041A.

PEL-2000A Series User Manual

Load Module

Channels

Power (W)

CH L/R

(low/high

range)

Current (A)

Range

Low/High

Voltage (V)

PEL-2020A

(100Wx2)

100/100

2/20

1-80

PEL-2030A

(30/(25/250W))

30/(25/250)

5/4/40

1-80

PEL-2040A

(35/350)

7/70

1-80

PEL-2041A

(35/350)

1/10

2.5-500

The 4 different load module models each differ in the amount of current, voltage and power and the number of channels that the load module can accommodate. The procedures in this manual will be load module model independent unless specifically stated. Below is a table showing the basic differences between each load module model. For detailed specifications, please see page 287.

GETTING STARTED

Standard Accessories

Description Power Cable

Mains power cable (region dependent)

CD ROM

Contains PEL-2000A Series Electronic DC Load User Manual, Programming Manual and USB Driver

GTL-120

Load cables 2X red, 2X black (per load module)

GTL-121

Remote sense cables , 1X red, 1X black (per load module)

Options

Description

PEL-2020A

PEL-2030A

PEL-2040A

PEL-2041A

Load Module

PEL-001

GPIB interface (Factory installed)

Optional Accessories

Description PEL-002

PEL-2000A Rack Mount kit (handle only)

GTL-232

RS-232C

GTL-246

USB

GTL-248

GPIB cable

GTL-249

Frame link

Package Contents and Accessories

The PEL-2000A electronic load generator has a number of standard and optional accessories that can be ordered.

PEL-2000A Series User Manual

Function

Description

Constant Current Mode (CC)

In constant current mode, the PEL-2002A/2004A will sink a constant amount of current, regardless of the voltage.

Constant Voltage Mode (CV)

Under constant voltage mode, the voltage remains unchanged, regardless of the current.

Constant Resistance Mode (CR)

In constant resistance mode, the resistance load will remain unchanged as the voltage and current remain proportional.

Constant Power Mode (CP)

In constant power mode, the PEL-2000A will ensure the power consumed is constant.

Programmable Sequences (Prog.)

The PEL-2000A series supports programming sequences. With up to 120 different memory settings in 12 programs with 10 sequences.

Sequences (Seq.)

Used to create load profiles to accurately simulate a load. Sequences can be created for each channel.

Parallel Unit Mode

Parallel Unit Mode enables the PEL-2000A mainframes to easily use load modules (of the same type/rating) in parallel. Parallel mode is used in conjunction with CC or CR modes. CP and CV mode cannot be used with this mode.

Measurement Overview

The PEL-2000A series has a number of different operating modes that are completely configurable. All the modes have customizable Go/NoGo limits, range limits, timers, slew rates, alarms and protection limits. For parallel loads, there is a dedicated Parallel configuration mode. To make tests, Programs and Sequences can be created.

Front Panel Overview

DC Electronic Load

PEL-2002A

LOCAL

CAL.

F5F4F3F2

ON / OFF

SHIFTPRESET

ENTER

FILEFUNC

LOAD

CHAN

CLEAR

4 5 6

P0 LOCK

P3P1 P2

P6P4 P5

P9P7 P8

UTILITY

HELP

LCD display

Function keys

System Keys

Number Pad

Operation

keys

PowerUSB input

Selector

Knob

LCD display

320 by 240, TFT LCD display.

Function keys

F1 F5

Assigned to the menu functions on the bottom of the display.

GETTING STARTED

PEL-2000A Series User Manual

System Keys

LOCAL

CHAN

CHAN/LOCAL is used to select the load channel. Combined with the shift key, Local is used to activate/deactivate local control (during remote control via the interface or frame link connections).

LOCAL

CHAN

Brings up the Channel Menu.

LOCAL

CHAN

SHIFT

Used to activate local control mode during remote control via the interface

FUNC

Used to access the Program, Sequence or Parallel menu.

FILE

Used to access the File menu.

UTILITY

HELP

Brings up the Help menu and utility menu.

UTILITY

HELP

Provides help for the last function /key pressed.

UTILITY

HELP

SHIFT

Activates the Utility Menu.

GETTING STARTED

Number pad

CAL.

987

CLEAR

4 5 6

P0 LOCK

P3P1 P2

P6P4 P5

P9P7 P8

Enter numerical values, or to save/recall presets (P0-P9).

Number values.

PRESET

Preset numbers P0P9.

CAL.

Decimal point and Calibration key

CAL.

Decimal point.

CAL.

SHIFT

Activate calibration mode.

Note

Please note, calibration mode is not supported. Please see your distributor for calibration needs.

CLEAR

LOCK

Clears current values. Alternative function locks the keys and the Selector knob.

CLEAR

LOCK

Clears the current value.

CLEAR

LOCK

SHIFT

Locks all the keys and Selector knob.

USB Input

USB flash memory slot.

Selector Knob

Used to select operations and to increase/decrease values.

When turned left or right moves the cursor in menus or changes the selected item or value.

When pushed down, acts as the Enter key.

Operation Keys

PRESET

Saves and recalls preset settings and values.

When pressed in combination with the number pad, Presets P0-P9 can be recalled or saved.

PRESET

Inactive

PRESET

Active. Used in combination with the number pad and/or shift key.

PRESET

Press to recall a channel preset

Hold to save a channel preset

PRESET

SHIFT

Press to recall all channel presets.

Hold to save all channel presets.

PEL-2000A Series User Manual

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GETTING STARTED

SHIFT

The shift key is used to access alternate functions assigned to select keys. The shift key is also used to toggle between coarse and fine control mode when used in conjunction with the selector knob to adjust parameters.

SHIFT

Inactive mode.

SHIFT

Active. When active the shift key can be used to access the Local and Utility menus.

SHIFT

Coarse control mode.

SHIFT

Fine control mode

ENTER

Confirms selections.

ON / OFF

LOAD

Turns the current load/channel on or off

ON / OFF

LOAD

Load is currently off. (unlit)

ON / OFF

LOAD

Load is currently on. (orange light)

PEL-2000A Series User Manual

Power

Turns the unit on or into standby mode.

Standby mode.

On.

Display Overview – Mainframe

ConfigureConfigure

Mode

Curr Limit

A Value 80.00 V

40.00 A

SPEC

Slow

Response

Slow

Main

Screen

Icons

F4 F5

Current

Operation

Channel

Status

Panel

Mainframe

Status

Panel

USB

SEQ

EXT

FRM

Alarm

*CH1

main

80V

B Value 80.00 V

Mainframe Status Panel

The Mainframe Status Panel displays the status of the Mainframe interface, programs and alarm status.

USB

SEQ

FRM

Alarm

Framelink

status

Load

type

Alarm

Interface

status

Frame Link Status

FRS

FRM

Indicates Frame Link is turned on and that the mainframe is set as either a master (FRM) or slave (FRS) unit.

GETTING STARTED

PEL-2000A Series User Manual

Load Type

SEQ

PROG

LOAD LOAD

PROG

SEQ

The Load Type Icon indicates if a Sequence (SEQ) or Program (PROG) is turned on. If not then LOAD is displayed as default. When any Load type is running, their icon will turn orange.

Interface Status

USB

GPIB

RS232

The interface status icon displays which interface type is set.

Current Operation Channel Status Panel

The Current Operation Channel Status panel generally displays the status of the current channel.

*CH1

SPEC

Slow

EXT

Channel

Go/NoGo

Channel Control

Mode

main

Voltage Range

Response Speed

80V

Channel

CH1~ CH8

*CHx CHxS CHxP

Displays the current channel.

* = independent mode S = Parallel Sync mode P = Parallel mode

GETTING STARTED

Mode

Displays the current mode.

CCL CCH CCDL CCDH CRL CRH CRDL CRDH CV CPL CPH

CC Static Low Range CC Static High Range CC Dynamic Low Range CC Dynamic High Range CR Static Low Range CR Static High Range CR Dynamic Low Range CR Dynamic High Range CV Mode CP Low Range CP High Range

Go/NoGo

SPEC

If Go/NoGo is turned on, SPEC will be displayed.

Response Speed

Slow Fast

In CV mode the response speed will be shown, Slow or Fast.

Channel Control

EXT

When Channel Control is set to External, EXT will be displayed.

Voltage Range

Displays the voltage range of the current setting.

Shows the current menu.

main conf s_edit file s_loop

= Chan menu = ChanConfigure menu = ChanSeq.Edit menu = File menu = ChanSeq.EditLoop menu

Main Screen

Main display screen.

PEL-2000A Series User Manual

Menu Icons

F1~F5

Each Menu Icon is controlled by the F1~F5 function keys directly below.

Rear Panel Overview

AWG 24

STRIP GAUGE

10.0 mm

CH CONT 11CH CONT 21CH CONT 31CH CONT 4

CH CONT 51CH CONT 61CH CONT 71CH CONT 8

SER. NO. LB

FRAME CONT

GO / NG OUTPUT

GPIB

RS232C

DISCONNECT POWER CORD

BEFORE REPLACING FUSE

50/60 Hz

180 VA MAX

250V

T 3.15A

REPLACE FUSE

115V

230V

FUSE RATING

AS SPECIFIED

WARNING

TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE

DO NOT REMOVE COVERS. REFER SERVICING TO QUALIFIED PERSONNEL.

250V FUSE OF THE SPECIFIED TYPE AND RATING.

FOR CONTINUED FIRE PROTECTION. REPLACE FUSE ONLY WITH

NO OPERATOR SERVICEABLE COMPONENTS INSIDE.

GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND.

Go/NoGo

Output

GPIB

RS232C

USB-B

terminal

USB-A

terminal

Frame Control 1,2

Power switch, Power Socket, Fuse

Channel Control, 1~8

GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND.

NO OPERATOR SERVICEABLE COMPONENTS INSIDE.

FOR CONTINUED FIRE PROTECTION. REPLACE FUSE ONLY WITH

250V FUSE OF THE SPECIFIED TYPE AND RATING.

DO NOT REMOVE COVERS. REFER SERVICING TO QUALIFIED PERSONNEL.

TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE

WARNING

AS SPECIFIED

FUSE RATING

230V

115V

REPLACE FUSE

T 3.15A

250V

120 VA MAX

50/60 Hz

BEFORE REPLACING FUSE

DISCONNECT POWER CORD

RS232C

GPIB

GO / NG OUTPUT

FRAME CONT

SER. NO. LB

CH CONT 41CH CONT 31CH CONT 21CH CONT 1

10.0 mm

STRIP GAUGE

AWG 24

Power switch, Power Socket, Fuse

Channel Control, 1~4

Go/NoGo

Output

GPIB

RS232C

USB-B

terminal

USB-A

terminal

Frame Control 1,2

Go/NoGo Output

GO / NG OUTPUT

The Go/NoGo Output terminal outputs a pass (high)/fail (low) voltage for each channel.

See page 274, 62 for details.

PEL-2004A

PEL-2002A

GETTING STARTED

PEL-2000A Series User Manual

RS232 port/ GPIB port

RS232C

The RS232 and GPIB port is used for remote control connections.

RS-232C: DB-9 pin male

GPIB: 24-pin female

See pages 268, 269 for remote control details.

USB-A(host)/ USB-B (device) port

The USB-B (device) port, like the RS232/GPIB port is used for remote control. Like the front panel, the USB-A port is used for data storage.

See page 97 for interface details.

Frame Control Port

FRAME CONT

The Frame Control port is used for Frame Link connections. Mainframes are daisy-chained together. There are two Frame control ports.

1: Slave 2: Master

Connection type: MIL 20-pin connector.

For details about frame link connections see page 57, 271.

Power Switch

External Power Switch

GETTING STARTED

Power Socket/ Fuse

The power supply socket accepts the AC mains Voltage. The fuse holder is located below the power socket.

Power: 50/60 Hz (180 VA)

Fuse: T3.15A/250V

For fuse replacement details see page 277.

Channel Control port (1~8)

CH CONT 1

Each channel has a dedicated Channel control port to enable external monitoring and control. The channel control port has 6 wire sockets that are screw-less and self clamping.

Required wire gauge: 24 AWG

For connection or specification details see pages 59 & 270.

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PEL-2000A Series User Manual

R / L

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense V sense

80V DC

MAX

80V DC

MAX

80V DC

MAX MAX

80V DC

L 20A / 80V , 100W

DC Electronic Load

20A / 80V , 100W

PEL-2020A

LED display

R/L A/B Key

Display Key

Load Key

Slave Knob

Static/ Dynamic Key

Short Key

V Sense L

V Sense R

Terminals

(Left)

Terminals (Right)

LED display

2x5 digit custom LED display.

Right/Left Key

A/B Key

R / L

A/B

The L/R key is used to switch between the right and left load channel on a dual channel load module. The A/B key is used to switch between A&B Values for single channel load modules.

Display Key

DISPLAY

Used to alternate the display output on the load module.

Front Panel Overview – Load Module

GETTING STARTED

Current

Voltage

Power

Load time

Load Key

LOAD

Activates the load for the active channel. (Right or Left)(A or B)

Left Voltage Sense

V sense

80V DC

MAX

The voltage sense terminals are used when precise measurement is needed. V Sense terminals are used to compensate for voltage drops across the main terminals caused by the resistance of the load wires.

It is automatically activated when connected to a DUT.

Right Voltage Sense

V sense

80V DC

MAX

Positive and Negative Terminals Left

80V DC

MAX

The terminals for both the left and right side of a load can draw differing amounts depending on the load module specifications.

PEL-2000A Series User Manual

Positive and Negative Terminals Right

MAX

80V DC

For 2 channel load modules, the left terminals are used for the 1st channel and the right terminals are used for the 2nd channel.

On single channel load modules, the left terminals are the lower (-) potential terminals, whilst the right terminals are the positive (+) potential terminals.

Static/Dynamic Selector Key

STATIC/

DYNA.

The STATIC/DYNA. Key manually switches the load from Static (manual) to Dynamic loads.

Dynamic loads are only supported in CC and CR mode. For more information see page 64 &

67.

Slave Knob (Load)

The Slave Knob is used to edit and vary parameters for the active channel on the local load. Depending on the Mainframe setup, the Slave Knob will either only update the load (locally) or will update both the local module and the mainframe*. The Slave Knob can also be configured to display measured or set values on the local load module**.

* For more information on “Knob Type”, see page 223.

** For more information on “Slave Knob”, see page 227.

GETTING STARTED

Short Key

SHORT

The SHORT key is used to manually short circuit the active channel on the local active load. When a load is off, the SHORT key will toggle the Short key type.

Hold: Hold the SHORT key to short the channel load.

Toggle: Press the SHORT key to toggle shorting the load on or off.

Load on: Pressing or holding the SHORT key will short the load, depending on the short type selected.

PEL-2000A Series User Manual

Channel Display

Left and right channel indicator.

5 digit display.

Channel Number Indicator

Indicates the channel number (1-8).

Indicates if the load is active on the load module. (Dual channel load modules)

Indicates if the load is on for single channel load modules.

LED Display Overview – Load Module

Mode Indicator

The Mode Indicator LEDs will indicate what the current mode or settings are on the active channel(s).

Value A or B for a single channel load module. Applies to CR, CV, CP and CC static mode only.

Constant Current Mode (CC) mode activated.

Constant Voltage Mode (CV) mode activated.

Constant Resistance Mode (CR).

Constant Power Mode (CP).

Display is shown on dual channel load modules when both left (L) and right (R) channel information is displayed.

Press the Display button repeatedly to show information for both channels.

Lights up when Go/NoGo is activated and the load passes (GO) the Go/NoGo limits.

L or R will light up when the left or right channel is selected.

Lights up when in Static mode.

GETTING STARTED

PEL-2000A Series User Manual

Lights up when in Dynamic mode.

Lights up when a load is shorted.

Lights up when Go/NoGo is activated and the load fails (NG) the Go/NoGo limits.

Channel Unit Indicators

The Unit Indicators display the current unit.

Voltage

Resistance

Current

Power

GETTING STARTED

WARNING

To avoid static electricity, please use appropriate antistatic work practices.

Module installation

The PEL-2004A and 2002A can accommodate 4 and 2 load modules, respectively. Module loads can have 1 or 2 channels. Installation of load modules is the same for both models.

Steps

1. Ensure the PEL mainframe is turned off from the rear panel. Disconnect the power cord.

2. Slide the module onto the rails of an empty load slot.

Installation

The installation chapter describes how to load the different load modules, install the optional GPIB card, the rack mount kit and how to determine each channel number.

Load Module Installation

PEL-2000A Series User Manual

3. Use the supplied screw to fix the module to the load slot, located under the load terminals.

4. Install any additional modules as described above.

5. If there are any slots empty, install the supplied panel cover (GW Instek part number: 63FP-AG106501). The panel cover will improve safety and increase air flow.

GETTING STARTED

6. Use the supplied screws to fix the panel cover(s) over the load slot.

GPIB Installation

WARNING

To avoid static electricity, please use appropriate antistatic work practices.

GPIB Card installation

The PEL-2004A and 2002A has GPIB as an option (GW Instek part no. PEL-001).

Steps

1. Ensure the mainframe is disconnected from mains power.

2. Remove the screws from the GPIB cover plate and remove the cover plate from the rear panel.

3. Slide the GPIB card into the slot and push gently until the back plate is flush with the rear panel.

4. Use the screws that were removed from step 1 to secure the GPIB card.

PEL-2000A Series User Manual

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Rack Mount Installation

Background

The PEL-2004A can be used in a standard 19” rack mount enclosure with the optional rack mount kit (GW Instek part no. 11EL-20040201). Each unit requires a rack height of 4U with a 1U space for ventilation top and bottom. The rear of the rack mount enclosure must be free of obstruction to allow heat to dissipate from the mainframe(s).

Steps

1. Screw the rack mount brackets as shown below using the supplied bolts.

PEL-2004A

2. Insert into a standard 19” rack enclosure with at least 1U of space top and bottom for ventilation.

GETTING STARTED

PEL-2000A Series User Manual

Description

The channel number for a module load is determined by which slot it occupies on the mainframe chassis. There can be 1 or 2 channels per slot, depending on the load module type.

The PEL-2002A has two slots; The PEL-2004A has 4 slots. Channel 1 is the farthest away from the main display panel and channel 8 (PEL2004A) or channel 4 (PEL-2002A) is the closest to the main display panel.

Below the PEL-2004A has all 4 slots occupied with the PEL-2020A, 2030A, 2040A & 2041A series load modules (LM), respectively. The PEL-2020A & 2030A have 2 channels per load module, the PEL2040A & 2041A have only 1. So the channel determination is:

LM1: CH1, CH2; LM2: CH3, CH4; LM3: CH5; LM4: CH6.

CH1

LOCAL UTILITY

CAL.

F5F4F3F2

ON / OFF

SHIFTPRESET

ENTER

FILEFUNC

LOAD

CHAN

CLEAR

4 5 6

HELP

P0 LOCK

P3P1 P2

P6P4 P5

P9P7 P8

A / B

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense

500V DC

MAX

500V DC80V DC

MAX

80V DC

V sense

LOAD

DISPLAY SHORT

STATIC/ DYNA.

A / B

80V DC

MAX MAX

80V DC

MAX

80V DC

MAX

80V DC

V senseV sense

LOAD

DISPLAY SHORT

STATIC/ DYNA.

R / L

DYNA.

STATIC/

SHORTDISPLAY

LOAD

V sense V sense

80V DC

MAX

80V DC

MAX

80V DC

MAX MAX

80V DC

L 20A / 80V , 100W

DC Electronic Load

20A / 80V , 100W

PEL-2020A

L 5A / 80V , 30W

DC Electronic Load

40A / 80V , 250W

PEL-2030A PEL-2040A

DC Electronic Load

70A / 80V , 350W

PEL-2041A

DC Electronic Load

10A / 500V , 350W

DC Electronic Load

PEL-2004A

CH2

CH3

CH4

CH5 CH6

Main Display Panel

Channel Number

Power Up & Self Test

Panel operation

1. Connect the power cord

to the power socket.

2. Turn the external power

switch on.

3. Hold the power button

on the front panel to turn on the power.

The power button turns green from red (standby).

WARNING

Ensure that the power outlet has a ground socket. The power outlet will have a ground connection if it is a 3 socket type.

Upon turning on, the Mainframe will perform a self-test. The self-test checks the System, followed by any attached channels.

GETTING STARTED

PEL-2000A Series User Manual

Initial

CH1 CH2 CH3 CH4 CH5

System

Success Success Success Success Success

Success

When the system check happens, the load modules will display each channel as it is checked, then display the current mode.

4. If any of the System checks fail, please power down the load generator and reinstall the appropriate load module(s).

5. To turn off the load

generator, hold the power button for a few seconds.

The PEL mainframe will return to standby mode.

Load Connections

Introduction

The PEL-2000A load generator supports a number of different load configurations for flexible operation.

 Single DUT, single load  Single DUT, parallel load  Multiple DUTs, multiple loads  Multiple DUTs, multiple mainframe loads  Single DUT, parallel mainframes  DC loads  Low voltage connections

The PEL-2000A also supports a number of different control methods and interfaces. The connections used are described here:

 Frame link  Channel control  Go/NoGo

Wire Gauge considerations

Before connecting the PEL-2000A, wire gauge must be taken into account. Load wires must be large enough to resist overheating when a shortcircuit condition occurs as well as maintain a good regulation. The size, polarity and length of a wire are all factors in determining if a wire will withstand short circuiting.

Precautions and Procedures

GETTING STARTED

PEL-2000A Series User Manual

Wire Selection

Wires that are selected must be large enough to withstand a short circuit and limit voltage drops to no more than 2V per wire. Use the table below to help make a suitable selection.

AWG

Max Current A(Amp)

7.64

10.0

13.1

17.2

22.6

30.4

40.6

55.3

Load Line Inductance Considerations

When using the PEL-2000A load generator, voltage drop and voltage generated due to load line inductance and current change must be taken into account. Extreme changes in voltage may exceed the minimum or maximum voltage limits. Exceeding the maximum voltage limit may damage the PEL-2000A.

To determine the voltage generated, the following equation can be used.

E = L x (∆ I / ∆ T)

E= voltage generated L=load line inductance

∆ I= change of current (A) ∆ T= time (us)

Load line inductance (L) can be approximated as 1uH per 1 meter of wire. (∆ I / ∆ T) is the slew rate in A/us.

GETTING STARTED

Current

Voltage

time

∆I

∆T

Min. V

The diagram above shows how changes in current can affect voltage.

Limiting Load line inductance

Load line inductance can be reduced by ensuring load wires are as short as possible and by twisting positive and negative load wires together. Current change can be limited by limiting the slew rate when switching.

“Twisted pair” will be shown on any connection

diagram where the load wires should be twisted together.

DUT

Programable

Electronic

Load

Twisted

Pair

DUT

Programable

Electronic

Load

DUT

Programable

Electronic

Load

PEL-2000A Series User Manual

Load module considerations

The PEL-2000A supports single and dual channel load modules.

Single channel load modules have one bank of negative terminals and one bank of positive terminals. Each terminal pair has a 40A capacity. For higher loads, each terminal can be wired in parallel to increase capacity.

Dual channel load modules have one bank of positive and negative terminals for each channel.

Single Channel Load Module

Dual Channel Load Module

Single channel

MAX

80V DC

MAX MAX

80V DC

Left channel

Right channel

Connection

Follow the procedure below for all load connections.

CAUTION

Ensure that power is off from the load generator and the DUT before making any connections.

Steps

1. Carefully lift the terminal covers.

2. Connect the positive (+) terminal on the load module to the high potential output of the DUT.

3. Connect the negative (-) load terminal to the low potential output of the DUT.

GETTING STARTED

80V DC

MAX MAX

80V DC

DUT

4. Close the terminal cover securely. Ensure the wires are secured properly and that the wires are not exposed when the cover is in place.

WARNING

Ensure that the wires are tied or twisted together to prevent noise and inductance.

CAUTION

Ensure the polarity is correct before proceeding with any connections. Using the wrong polarity could result in reverse voltage damage.

80V DC

MAX MAX

80V DC

DUT

Ensure the input voltage doesn’t exceed specifications.

Exceeding the voltage specifications could result in damage to the instrument.

Remote (Sense) Connection

Background

The electronic load modules have two voltage sense contacts: Vsense L(black), Vsense R(red). Voltage sense can be used to help compensate for long cable length. The longer the cable, the higher the potential resistance and inductance, therefore a short cable is best. Twisting the cable can help reduce induced inductance and using the Vsense terminals compensates the voltage drop seen across the load leads, especially leads with higher resistance. This is useful when used in CV, CR or CP mode.

WARNING

VsenseR (red) must have a higher (+) potential than VsenseL (black).

Connection

The diagram below shows how a DUT can be connected using voltage sense. Note that the sense wires are also twisted pairs.

Single Channel

Load Module

+ +

Twisted

Pair

Twisted

Pair

+ +

DUT

Note

The wire gauge for the sense wires should be no smaller than 16 gauge.

Input

The voltage sense terminals must use a wire gauge of 16 to 14.

PEL-2000A Series User Manual

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GETTING STARTED

Remote Sense Terminal connection

The voltage sense terminals use a screw-less clamp connector. The clamp must be opened prior to inserting a wire. Use a small screwdriver to push the clamp release mechanism. Insert both wires then release the clamp mechanism.

V sense

80V DC

MAX

PEL-2000A Series User Manual

Dual Channel Load Module Connection

A dual channel load module can be used to sink two loads concurrently.

Twisted

Pair

DUT

Twisted

Pair

DUT

Dual channel Load Module

Single Channel Load Module Connection

On a single channel load module, the left terminals are both negative (-), whilst the right terminals are both positive (+). Note this also applies to the voltage sense terminals.

Single Channel

Load Module

+ +

Twisted

Pair

DUT

CAUTION

For loads exceeding 40A, both positive and both negative terminals must be used in parallel.

Single Channel

Load Module

+ +

Twisted

Pair

DUT

Single Load Connections

GETTING STARTED

DC Connection

For purely DC operation, a resistor and capacitor can be connected in parallel to the electronic load to reduce oscillation. The capacitor and resistor values are dependent on the load settings. Ensure the capacitor ripple current is within allowable limits.

Twisted

Pair

DUT

Dual channel Load Module

Low Voltage Connection

Using the load generator with low voltage loads is generally limited to over 1 volt (load module dependent). In order to support low voltage loads, an auxiliary power supply is needed to boost the voltage to a range suitable for the load generator.

Precautions:  Take into account the combined power of the

load and auxiliary power supply.

 Make sure the auxiliary power supply is able

to provide enough current.

 Take into account any noise or irregularities

from the auxiliary supply.

The diagram below shows a typical connection.

DUT

Load Module

Auxiliary

WARNING

Using an auxiliary power supply may induce reverse current. The PEL-2000A series has reverse voltage protection. For details see the protection section on page 87.

PEL-2000A Series User Manual

Parallel load modules

When the power output of a DUT exceeds the power rating of a channel or load module, the channel terminals, load modules or mainframes can be used in parallel to dissipate more power when used in CC or CR mode. Each channel will sink the amount of current specified. The total power sunk is the sum of all channels/modules. The amount of power can vary from each channel. For example if CH1 is 25A and CH2 is 20A, then the total current sunk is 45A. Parallel loads are supported for both static and dynamic loads (see page 85 for a description on parallel dynamic loading). Note that the same modules must be used when operating the parallel.

The PEL-2000A also features a dedicated parallel configuration setting known as Parallel Unit. When Parallel Unit is turned on, load modules of the same type and rating to be used in parallel for CC and CR mode. See page 75 and 211 for more information.

Parallel Load Connections

GETTING STARTED

Parallel load

DUT

Single Channel

Load Module

Single Channel

Load Module

Single Channel

Load Module

Single Channel

Load Module

Note

Please note that the same load modules must be used in parallel.

Parallel loads using frame link connections

The PEL-2000A mainframes can also be connected in parallel. Please note, when using a frame link connection there is a delay between the master and the slave. Please see page 57 for details.

DUT

Slave

DUT

Master

Slave

Max 7kW

PEL-2000A Series User Manual

Multi-output power supply load

The PEL-2000A is also able to sink a number of loads concurrently from multiple DUTs or sink a number of loads from the same DUT (i.e. multiple output power supply).

Twisted

Pair

Multiple-output DUT

Twisted

Pair

Twisted

Pair

Dual channel Load Module

Twisted

Pair

Dual channel Load Module

Frame Link Connection

Background

Frame link control involves connecting multiple mainframes using the frame link connections. Up to 4 slave mainframes can be connected to the master mainframe. The first mainframe (master) can be used to control the other slave frames. There is a delay time of 2ms between the master and first slave mainframe, and 4ms, 6ms, and 8ms to the second, third, and fourth slave mainframes, respectively. The connectors used are standard MIL 20-pin connectors. For pin arrangement, see page 271. The frame link cable (part no. GTL-249) is an optional accessory, see page 15 for details.

Frame Link Connection

RS232C

GPIB

GO / NG OUTPUT

SER. NO. LB

FRAME CONT

CH CONTCH CONT 21CH CONT 31CH CONT 4

STRIP GAUGE

10.0 mm

AWG 24

CH CONT 51CH CONT 6CH CONT 71CH CONT 8

180 VA MAX 50/60 Hz

DISCONNECT POWER CORD BEFORE REPLACING FUSE

REPLACE FUSE AS SPECIFIED

FUSE RATING

115V

230V

T 3.15A

250V

WARNING

TO AVOID ELECTRIC SHOCK THE POWER CORD PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND FOR CONTINUED FIRE PROTECTION. REPLACE FUSE ONLY WITH 250V FUSE OF THE SPECIFIED TYPE AND RATING. NO OPERATOR SERVICEABLE COMPONENTS INSIDE. DO NOT REMOVE COVERS. REFER SERVICING TO QUALIFIED PERSONNEL.

RS232C

GPIB

GO / NG OUTPUT

SER. NO. LB

FRAME CONT

CH CONTCH CONT 21CH CONT 31CH CONT 4

STRIP GAUGE

10.0 mm

AWG 24

CH CONT 51CH CONT 6CH CONT 71CH CONT 8

180 VA MAX 50/60 Hz

DISCONNECT POWER CORD BEFORE REPLACING FUSE

REPLACE FUSE AS SPECIFIED

FUSE RATING

115V

230V

T 3.15A

250V

WARNING

RS232C

GPIB

GO / NG OUTPUT

SER. NO. LB

FRAME CONT

CH CONTCH CONT 21CH CONT 31CH CONT 4

STRIP GAUGE

10.0 mm

AWG 24

CH CONT 51CH CONT 6CH CONT 71CH CONT 8

180 VA MAX 50/60 Hz

DISCONNECT POWER CORD BEFORE REPLACING FUSE

REPLACE FUSE AS SPECIFIED

FUSE RATING

115V

230V

T 3.15A

250V

WARNING

FRAME CONT

Output

Master

(FRM)

Output

Input

Slave

(FRS)

Slave

(FRS)

GETTING STARTED

PEL-2000A Series User Manual

The first mainframe that is connected is the master frame; any additional frames are slave units. The ribbon cable connects to the master from connector 2, and the slave from connector 1. Each successive slave unit is connected in a cascading manner the same way.

Ensure the Mainframes are turned off before connecting the ribbon cables. Push the cable into the frame link connector. Ensure the arrows line up. The latches will close when the connection is complete. To remove, pull the latches out and connector will come out.

Insertion

Removal

WARNING

Ensure all the mainframes are off and disconnected from mains power before connecting.

Channel Control Connection

Background

The Channel Control connecters are located on the rear panel of each mainframe. There are two channel control connectors for each load slot, one for each channel, if applicable. The channel control connector is used to externally:

 Turn on/off loads.

 Supply a reference voltage.

 Monitor the load input.

For further details on channel control and the interface see pages 93, 270.

RS232C

GPIB

GO / NG OUTPUT

SER. NO. LB

FRAME CONT

CH CONTCH CONT 21CH CONT 31CH CONT 4

STRIP GAUGE

10.0 mm

AWG 24

CH CONT 5

CH CONT 6CH CONT 71CH CONT 8

180 VA MAX 50/60 Hz

DISCONNECT POWER CORD BEFORE REPLACING FUSE

REPLACE FUSE

AS SPECIFIED

FUSE RATING

115V

230V

T 3.15A 250V

WARNING

The Channel Control input/output pin layout is shown below.

GND

I MON

V MON

EXT VREF

Load On

+15V

Output

Input

Output

GETTING STARTED

PEL-2000A Series User Manual

External Voltage Connection

The external voltage reference input must be between 0~10V.

GND

EXT VREF

External

Voltage

Twisted

Pair

WARNING

Ensure the external voltage reference is stable and has low noise. The External Voltage should be no more than 10V.

No more than 12 volts may be used as an external voltage. More than 12 volts may damage the load generator.

Load on connection

To turn a load on, an active low voltage (0-1V) must be applied across Load On (pin 5) and GND (pin 1), similarly an active high voltage (4-5V) must be applied to turn a load off. The Load On input must be TTL.

TTL input

voltage

GND

Load On

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GETTING STARTED

Voltage and Current Monitor Output

The Voltage Monitor Output (VMON) and Current Monitor Output (IMON) output the load input voltage and load input current as a percentage of rating current/voltage. Where 0 volts = 0% rating and 10 volts = 100% load input rating voltage or current.

The voltage monitor output is across pins 1 & 3, and the current monitor output is across pins 1 &

2. Pin 6 outputs a +15V reference voltage.

Below shows the pin configuration of the voltage and current monitor outputs.

I MON

V MON

GND

Current Monitor

Voltage Monitor

+15V

Reference voltage

Connector Connection

The channel control connector is a screw less clamp connector. The internal clamp mechanism must be opened before a wire can be inserted. To open the internal clamp, push the button above the wire socket, to close, release the button. Ensure at least 10mm is striped from the wire. The diagram below shows the wire insertion procedure.

WARNING

All connections to the channel control connector must use a 24 AWG wire gauge.

PEL-2000A Series User Manual

Background

The Go/NoGo port is a 15 socket port. Each channel has a dedicated line for a Go/NoGo output. The ports are open-collector with active low (1.1V) indicating a pass and active high (30V) as fail (an alarm). The Go/NoGo terminal is a DB15 female.

For more details on the Go/NoGo interface see page 274.

GND

CH5 Go/NoGo

CH2 Go/NoGo

CH3 Go/NoGo

CH4 Go/NoGo

Go/NoGo Enable

CH6 Go/NoGo

CH7 Go/NoGo

CH8 Go/NoGo

CH1 Go/NoGo

GND

Go/NoGo Connection

GETTING STARTED

Operating Mode Description ........................................... 64

Constant Current Mode ....................... 64

Constant Resistance Mode ................... 67

Constant Voltage Mode ........................ 70

Constant Power Mode .......................... 73

Parallel Unit Mode .......................................................... 75

Run Program ................................................................... 77

Sequence ........................................................................ 80

OCP Test Automation ...................................................... 85

Parallel Dynamic Loading ................................................ 86

Configurations Description ............................................. 87

Protection Modes ................................ 87

Operating Configurations .................... 89

Channel Control ................................... 93

Interface and File System ................................................ 97

Interface .............................................. 97

File System .......................................... 97

File Format ........................................ 102

OPERATING

DESCRIPTION

PEL-2000A Series User Manual

Background

In Constant Current Mode the load units will sink the amount of current programmed. Regardless of the voltage, the current will stay the same. There are two ranges in CC mode: High and Low. There are two main modes in CC mode: Static and Dynamic. Static mode can be used for stability tests and dynamic mode can be used to test transient load conditions.

Go/NoGo is supported for both High and Low range as well as Static and Dynamic mode.

CC Mode

Load Current

Load Input Voltage

Operating Mode Description

There are four basic operating modes: constant current (CC), Constant Resistance (CR), Constant Voltage (CV/CV+CC) and Constant Power (CP). All channels operate using any of the modes. Each mode has a number of configurable options including slew rate, levels, protection modes, Go/NoGo and extensive save options.

Constant Current Mode

GETTING STARTED

Range

There are two selectable ranges for constant current mode: high and low range.

Low range has a higher resolution, but a lower range. If the current exceeds the Low Range, High range must be used.

Static Functions

Static mode tests the stability of the voltage output from a power source. Single channel load modules can have two 2 current levels A (A Value) & B (B Value). A & B have the same range. Pressing the A/B key on the module load will cycle through the A and B states. Alternatively, the mainframe can select A or B Value.

Dual channel load modules only have one current level (A Value) per channel in static mode.

Static Mode: Single Channel Load module.

Current

A Value

B Value

Slew Rate (rise) Slew Rate (fall)

Time 1 Time 2

CC Mode: Static

Dynamic Functions

Dynamic load functions allow you to set load levels (Level1, Level2), load time (Timer1, Timer2), and the slew rate (rising, falling). Depending on the settings, the load will switch automatically between levels 1 and 2.

Dynamic loading can be used for charge discharge cycle testing etc.

PEL-2000A Series User Manual

Current

Time

Level 1

Level 2

Timer 1 Timer 2

CC Mode: Dynamic

Timer 1

Slew rate

The slew rate is the rate at which the current will increase to a set level. There are two slew rates: rising slew rate & falling slew rate. In CC mode the slew rate is defined as A/uS.

Current

Time

Level 1

Level 2

Slew Rate (rise)

A/uS

Slew Rate (fall)

A/uS

Time 1 Time 2

Slew Rate

As can be seen above, the rising and falling slew rate need not be the same.

Go/NoGo

Using Go/NoGo, the Center, High and Low voltage limits can be set for both Static and Dynamic modes. A delay time of up to 1 second can also be set.

GETTING STARTED

Load

Current

Voltage

High

Low

CC Mode: Static:Go/NoGo

Current

NoGoNoGo

Current

Voltage

Level 1

Level 2

CC Mode: Dynamic:Go/NoGo

High

Low

Go NoGo

GO is specified as between the Low and High Go/NoGo limits. NoGo is specified as outside the Go/NoGo limits.

Background

In Constant Resistance Mode the load units will linearly sink current and voltage to match a set resistance. CR mode has two different values (single load modules), two different ranges and rising and falling slew rates. Like CC mode, Constant resistance mode supports both dynamic and static loads. As with the other modes, Go/NoGo is supported.

Constant Resistance Mode

PEL-2000A Series User Manual

CR Mode

Load Input

Voltage

Load Current

Resistance

Resistance Range

There are two ranges: High and Low. The Low range is used for low voltage ranges, whilst the High range uses high voltage ranges. The current range always remains in High range, regardless of the selected voltage range.

Static Functions A/B range

For static mode, single channel load modules have two resistance levels, A & B Value. The A/B key can be used to switch between these resistance levels. Dual channel load modules only have one resistance level, A Value.

Single Load Module

CR Mode

Load Input

Voltage

Load Current

A Value

B Value

Dynamic Functions

CR mode supports Dynamic loading. Dynamic load has two resistance levels (Level 1&2), and two timers (Timer 1&2) to switch between the resistance levels. Rising and falling slew rates can be set to determine the speed at which the load generator switches between load levels.

GETTING STARTED

Dynamic CR Mode

Load Input

Voltage

Load

Current

Level1

Level2

Timer 1 Timer 2 Timer 1

Slew Rate

The rising and falling slew rate (A/uS) determines the speed at which the load levels change from A to B Value (Static mode) or from Level1 to 2 (Dynamic mode) and vice versa.

Go/NoGo

Go/NoGo is also supported. Center, High and Low limits can be set as either percentages or voltage values. A delay time of up to 1 second can also be set.

High

Low

NoGo

CR Mode: GO/NOGO

Load Input

Voltage

Load Current

Resistance

Constant Voltage Mode

Background

In Constant Voltage Mode the load units will sink current whilst keeping the voltage constant.

Single channel load modules support 2 values (A Value, B Value) and have an adjustable cut-off current limit. Dual channel load modules only have A value.

Response speed can also be set to fast (Fast) or slow (Slow). The response speed relates to the slew rate of the current response.

Constant voltage mode only operates in high range.

Go/NoGo functionality is also supported either as a percentage or as a current value.

CV Mode

Load Input

Voltage

Load

Current

Voltage levels

Two voltage levels can be set: A & B (single channel load module).

PEL-2000A Series User Manual

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GETTING STARTED

CV Mode

Voltage

Time

A value

B value

CV + CC

When using CV mode, a current limit can be set for CV + CC mode.

When the voltage input is greater than A Value (load voltage) then the channel will operate in CV mode if the input current is less than the current limit. When the input current exceeds the current limit, the channel will operate in CC mode.

When the voltage input is less than A Value (load voltage) current stops flowing.

CV + CC Mode

Load Input

Voltage

Input Current

Current Limit

PEL-2000A Series User Manual

Response Speed

Response speed can be set to fast or slow. Fast response and slow response is determined by the load module specifications. Slow response speeds are suitable for large loads as quick current changes will induce induction which can cause large voltage drops. The PEL series will try to rectify any voltage drops. However if voltage drops are too large, they may cause the load generator to go into oscillation. Large voltage drops caused by line voltage induction may damage the machine.

Range

Fast

Slow

1kHz

100Hz

Go/NoGo

Go/NoGo testing can be with either current (Ampere) values (High, Low) or percentage values (Center, High %, Low %). A delay time of up to 1 second can also be set.

CV Mode: GO/NOGO

Voltage

Load

Current

High

Low

Load

Voltage

NoGo

Constant Power Mode

Background

In Constant Power Mode the load units will ensure a constant power load for the power supply.

Single channel load modules support 2 values (A Value, B Value) and have an adjustable cut-off current limit. Dual channel load modules only have A value.

Constant power mode can operate in high or low range.

Go/NoGo functionality is also supported either as a percentage or as a current value.

CP Mode

Load Input

Voltage

Load Current

Ia Ib

Power levels

Two power levels can be set: A & B (single channel load module).

GETTING STARTED

PEL-2000A Series User Manual

CP Mode

Load Current

A Value

B Value

High/Low Range

There are two ranges: High and Low. The Low range is used for low power ranges, whilst the High range uses high power ranges.

CP Mode

High range

Low range

Go/NoGo

Go/NoGo testing can set High and Low Current limits as a Value (in Amperes) or as a percentage. A delay time of up to 1 second can also be set.

CP Mode

Load Input

Voltage

Load Current

NoGoGo

No Go

GETTING STARTED

Background

The Parallel configuration menu allows load modules of the same type and rating to be configured as a single unit when used in parallel. This saves the hassle of configuring each channel individually.

Parallel Configuration is only supported under CC and CR mode.

Parallel Configuration has three configuration settings: Parallel Unit, Parallel Mode and Display Mode.

Parallel Unit

This configuration setting sets the number units that are to be used in parallel and enables or disables the Parallel Unit mode.

Parallel Mode

The Parallel Mode setting determines how the Current Levels/Resistance Values are set when used in parallel. There are two settings: Para and Sync.

The Para setting allows the all the parallelized load modules to be operated as a single large load module.

Sync mode allows the settings of a single unit to be synchronized across all the other parallelized load modules.

Parallel Unit Mode

PEL-2000A Series User Manual

CC Example

Consider 3 load modules set to CC mode in Parallel.

In CC mode the total current for all units is the sum of each unit.

nIIII  21 Total

For example, to set a total load current of 90A, the Current Level setting in Para mode would be 90A, whilst it would be 30A in Sync mode.

Para mode

Sync Mode

CCDH

ConfigureConfigure

Mode

Dynamic

Range

High

Level2 SlewRate SlewRate Timer1 Timer2

Level1 90

0.80

0.025

A A A/uS A/uS mS mS

main

80V

CH1P

LOAD

USB

CCDH

ConfigureConfigure

Mode

Dynamic

Range

High

Level2 SlewRate SlewRate Timer1 Timer2

Level1 30

0.80

0.025

A A A/uS A/uS mS mS

main

80V

CH1S

LOAD

USB

CR Example

When used in CR mode, the equation for equivalent resistance for all the parallel loads is:

RnRRq

111

21e



For example, if 2 load modules have a set resistance

of 100Ω each, the equivalent resistance of the load modules would be 50Ω. The Level setting in Para mode would be 50Ω and 100Ω in Sync mode.

Para mode

Sync Mode

CRDL

ConfigureConfigure

Mode

Dynamic

CH1P

Range

High

Level2 SlewRate SlewRate Timer1 Timer2

Level1 50.0000

100.000

0.40

0.025

Ω Ω

A/uS A/uS mS mS

main

80V

LOAD

USB

CRDL

ConfigureConfigure

Mode

Dynamic

CH1S

Range

High

Level2 SlewRate SlewRate Timer1 Timer2

Level1 100.000

100.000

0.40

0.025

Ω Ω

A/uS A/uS mS mS

main

80V

LOAD

USB

GETTING STARTED

Display Mode

Display mode determines what units are displayed on the local load modules: V/I, V/W, I/W, S. The displayed units can only be controlled through this menu.

Background

The Program function on the PEL-2000A series supports a total of 12 different programs at any one time with 10 sequences to each program. Up to 12 programs can be chained together. The Program function is able to create a number of Go/NoGo tests.

Run Program is not supported in Parallel Mode (page 75).

Program Sequence

A program sequence is simply a single load test. A program is a battery of each of these tests run in succession. Each sequence loads the settings for each channel from Memory Data (Memory MXXX). The Memory Data stores settings such as the operating mode and range for each channel. Each sequence loads all channels at the same time, unless programmed otherwise. Sequences for each channel run synchronously.

Time

CH1

Sequence

001

Sequence

002

Sequence

003

CH2

CH3

CH4

CH5 CH5 Active = Off

Run Program

PEL-2000A Series User Manual

Each Sequence has a number of configuration options that apply to all the channels equally.

Sequence Item

Description

Memory

Loads the channel settings for each load module Range: M001~M120

Run

Sets the running configuration for the current sequence. The sequence can be skipped, run or run manually only.

Range: Auto | Skip | Manual

On-Time

Sets the Sequence Run On-Time Range: 0.1 ~ 60.0s

Off-Time

Sets the Sequence Off-Time Range: Off | 0.1 ~ 60.0s

Short-time

Sets whether the Short-Time for the sequence.

Range: Off | 0.1s ~ On-time

P/F-Time

Sets the Pass/Fail time for the sequence

Range: Off | 0.1 ~ (On-Time+OffTime)-0.1s

Short Channel

Selects which channel will be shorted during the sequence

Range: CH1 ~ CH8

Program

Sequences are run sequentially to create a Program. There are 10 Sequences in each Program.

1 2 3 4 5Sequence

Program 1

(P01)

6 7 8 9 10

GETTING STARTED

If less than 10 Sequences are desired for a Program, any additional Sequences can be skipped (not run).

1 2 3 4 5Sequence

Program 1

(P01)

6 7 8 9 10

Sequence 2 & 3 are skipped.

Program Chain

Any of the 12 programs can be chained together to create a Program Chain. Unlike Program Sequences, Program Chains need not be run sequentially in numerical order. Any program can be chained to any program. It is possible to chain programs into an infinite loop to continue a program indefinitely.

12 2 3 4 11Program

Program

Chain

1 5 6 7 8 9 10

Above, a program chain running sequences out-oforder.

Go/NoGo Results

If Go/NoGo limits have been configured, the Pass/Fail results for each channel will be displayed for all the sequences and programs.

Start

Exit

PROG

1 1 1 1

1 2 3 4

1 G G G G

N N N

Channel

Program no.

Sequence no.

Channel

Go/NoGo

Sequence

Background

The Sequence function is used to create high resolution load simulations. Each Sequence can be configured to create a unique load profile to accurately simulate loads in real time. Sequences are only applicable for CC (Static) and CR (Static) modes.

Note: Sequences are not to be confused with the sequences used to create a program. They are not the same and cannot be used interchangeably. Sequences (SEQ memory) cannot be used in Programs and Programs cannot load Sequences.

Load Profiling

The Sequence function is able to simulate a load to a high resolution. Each channel is able to change its load sink within 100us per point independently. When used in parallel, multiple loads can be sunk concurrently to simulate the loads placed on multiple output power sources.

The diagram below shows the load profile of a DUT at start-up.

PEL-2000A Series User Manual

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GETTING STARTED

Points

Up to 120 points can be used with each Sequence. Each point can have a different duration, slew rate and value.

A new point can be inserted or deleted at any stage of a Sequence. Any new points that are inserted will have a value averaged from its neighbors as default.

Time

Point1

Point2

Point4

Point5

Point6

Point7

Point3

Value

Sequence – Points

A new point is inserted after Point 3.

Loop

Sequences can be programmed to loop a number of times starting from any point in the sequence.

Sequence - Loop

Time

Point1

Point2

Point4

Point3

Value

From Point3 the sequence is looped two times.

PEL-2000A Series User Manual

On End Of Seq. function

If more than one Sequence is programmed on the mainframe, the On End Of Seq. function will hold the load current (of the selected sequence) to a designated value until all the other sequences have finished running.

End Of Seq. Example

Time

End Of Seq. = 1 Amps

End of

Sequences

End Of Seq. = OFF

In the example above, Seq. 1 will hold the load current at 1A at the end of its sequence until the last sequence has finished. Seq. 2 is the longest sequence, and as such the End Of Seq. setting is not applicable. Seq. 3 is turned off after its sequence has finished (0 amps).

Trig Out

The Trigger Out function allows a trigger sequence signal to be output from a channel via PIN 4 on Frame Link connector 1 when using Sequences. The Trig Out function is used from the Channel Duration menu.

GETTING STARTED

Time

Trig

Out

Time

Value

Point1

Point2

Point3

Point4

Point5

Point6

CH1

Trigger Sequence

As can be seen above, a trigger sequence signal is output for every rising edge point.

Trig In

The Trigger In setting allows a sequence to start after a trigger (Trig Out) has been received via the frame link connector. The Trig In setting is used for frame linked mainframes.

Channel Duration Time Setting

The Channel Duration Time Setting feature allows the point time duration of one Sequence to be imported by another Sequence. If the receiving

sequence doesn’t have enough points, more will be

created (without values).

For example, the sequences for CH1 and CH2 are shown below. CH1 has a total of 6 points with long durations, whilst CH2 has only 2 points, looped 5 times. The points from CH2 are also significantly shorter in duration.

PEL-2000A Series User Manual

Time

Value

Time

Value

Point1

Point2

Point3

Point4

Point5

Point6

Point1

Point2

CH1

CH2

Below shows the resulting sequence when CH1 imports CH2. CH1 imports the duration time settings and number of points from CH2, but not the value data.

Time

Value

Point1

Point2

Point1

Point2

Point1

Point2

Point1

Point2

CH1 import CH2

GETTING STARTED

Background

The OCP test function creates an automatic test to test the over current protection of power supply products. See page 179 for operation details.

This test will test to see when the over current protection of a power supply is tripped and return the measurements for the voltage and current when the over current protection was tripped. The PEL-2000A also has a user-defined OCP setting in the event that the power supply OCP fails.

The diagram below shows an example of the OCP Test Automation function.

OCP Test Automation

Parallel Dynamic Loading

Background

The PEL-2000A series of DC electronic loads support parallel dynamic loading. This simply means that when the load modules of a mainframe are connected in parallel and set to dynamic mode, they can perform dynamic tests synchronously following the same clock. Under dynamic mode, load current or resistance is pulsed between two preset levels. When used in parallel, higher powered outputs can be tested. This ability gives the PEL-2000A series the flexibility to perform dynamic tests over a wide range of power outputs.

For connection details see the Parallel Load Connections section on page 54.

The diagram below shows how two load modules are able to sink a higher load when used in parallel under dynamic mode.

Total load

Load 2

Load 1

Note

Note: The same type of load modules must be used operated in parallel.

PEL-2000A Series User Manual

Background

The PEL-2000A series include a number of protection modes: Over Current Protection, Over Voltage Protection, Over Power Protection, Under voltage protection and Constant Power Protection.

The protection modes are useful to protect both the load modules and the DUT(s). A buzzer can be set to notify when a protection setting has been tripped. When a protection feature is activated and has been tripped then the load unit will display an alarm. The Mainframe will also display an alarm. When an alarm has been tripped the load will stop sinking current/voltage. There are three Over load protection settings: ON, OFF and Clear.

CCDH

Configure

Protection

Go-NoGo

CH1

Other

OCP Setting OVP Level OVP Setting OPP Level OPP Setting

OCP Level A

5.075 OFF

81.6

29.75 OFF

Alarm

Conf

80V

GETTING STARTED

Configurations Description

There are a number of different configurations for the PEL series including protection modes, operating configurations, and file system configurations. The Configuration Description section describes what the different configurations are used for and how they can be relevant to different operations.

Protection Modes

PEL-2000A Series User Manual

Over Current Protection

When a load unit is operating in CR, CV or CP mode, the unit may need over current protection to prevent excessive current being sunk. Over current protection stops the load from sinking more current than its recommended limit which can cause damage to the unit.

CV Mode: OCP

OCP level

CR Mode: OCP

Resistance

OCP level

CP Mode: OCP

OCP level

Power

Over Voltage Protection

Over voltage protection is used to limit the amount of voltage sunk. If the OVP trips, the PEL series load will stop sinking voltage.

CC Mode: OVP

CP Mode: OVP

OVP level

Power

OVP level

GETTING STARTED

Over Power Protection

Over power protection is used when the power range exceeds the specifications of the load. When OPP is tripped power will cease to be sunk.

Reverse voltage Protection

Reverse voltage protection prevents reverse voltage damage to the PEL-2000A series up to the specified rating. When Reverse voltage protection has been tripped an alarm tone will sound until the reverse voltage is removed.

For more details please see the specifications.

Under voltage Protection

Under voltage protection will turn off the load when the voltage drops below a set limit.

Constant Power Protection

Constant power protection will prevent excessive power draw.

Background

There are number of operating configuration settings. Configuration settings are for the following:

CC Vrange, Von Voltage, Von Latch, Short Key, CH Cont, Independent load sync, D-time, Step resolution settings and Response settings.

CC Vrange

CC Vrange (page 192) is used to set the voltage range as High or Low for CC mode. CC voltage range is dependent on the load module specifications.

Operating Configurations

PEL-2000A Series User Manual

Von Voltage

Von Voltage is the voltage limit at which the load will start to sink current. There are two operation modes for Von Voltage: Von latched: ON and Von latched: OFF.

Latched: ON will sink current when Von has been tripped, and will continue to sink current even if the voltage drops below the Von Voltage.

Von Latched: OFF will sink current when Von has been tripped, but will stop sinking current when the voltage drops below the Von Voltage setting.

Von Latch: ON

time

load

Output

PEL Load

Von Latch: OFF

time

load

Output

PEL Load

Von

As can be seen in the diagram below, when Von-Latch is set to off, the load module will start to sink current when the Von-voltage limit has been tripped. It will stop sinking current when the output drops below the Von voltage limit.

Von Latch: OFF - Start

time

Von Latch: OFF - Stop

Output

time

PEL Load

time

load

Von

Output

PEL Load

Von

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GETTING STARTED

Short

When short mode is on, the load unit can simulate a short circuit.

Shorting can be individually set for each channel when programming sequences.

To initiate a short circuit manually, the short key is used. It can be used at any time during an operation. It will not affect the settings. After a short circuit has finished, the load unit will resume the previous operation.

The short key can be set to toggle or hold. When pressed in toggle mode, shorts are toggled on and off. When pressed in hold mode, the key needs to be held to short the load.

Note

A short circuit may trip a protection mode if too much current is sunk.

CH CONT

Channel Control. When Channel control is activated (External) it can be used to monitor the voltage and current output of the load as well as turn loads on or off remotely from the Channel Control (CH CONT) connectors located on the rear panel.

For more information about channel control, see external voltage control on page 93.

Independent

The Independent setting will allow the load modules to be controlled independently from the mainframe.

PEL-2000A Series User Manual

Load D-Time

Load Delay time is used to delay activating a load (up to 10 seconds) after the load key has been pressed. However the Load D-Time setting will only work for loads that are initiated manually or when the PEL series mainframe is configured to Auto load (page 217) at run time.

Step Resolution

Each channel voltage, current and resistance setting can have the step resolution configured. The step resolution refers to the step resolution of the coarse adjustment of these settings. The fine adjustment cannot be configured, see page 202 for details.

For example if the step resolution for CCH (CC high range) is .5 A, then the resolution can be incremented in .5A steps;

8.08.59.09.5

The step resolution parameters apply to the following:

CCH Step – CC high range CCL Step – CC low range CRH Step – CR high range CRL Step – CR low range CV Step – CV high range

Step Resolution Range

The step resolution range is dependent on the load module and the range:

Max resolution: Module dependant, see page 202

Min resolution: Channel range/2

Response

The Response setting sets the bandwidth of the load generator to 100kHz(normal) or 1MHz(fast). The Response setting is particularly important for limiting startup current.

GETTING STARTED

Background

External channel control is used with the Channel Control connectors. Each channel control connector can activate each load, monitor voltage and current and has an external voltage reference input. The voltage and current monitors output 0~100% of the rated current/voltage as a voltage of 0~10V.

RS232C

GPIB

GO / NG OUTPUT

SER. NO. LB

FRAME CONT

CH CONTCH CONT 21CH CONT 31CH CONT 4

STRIP GAUGE

10.0 mm

AWG 24

CH CONT 51CH CONT 6CH CONT 71CH CONT 8

180 VA MAX 50/60 Hz

DISCONNECT POWER CORD BEFORE REPLACING FUSE

REPLACE FUSE

AS SPECIFIED

FUSE RATING

115V

230V

T 3.15A 250V

WARNING

External Voltage Reference

A voltage reference of 0-10V is used to represent 0100% of the rating voltage/current of a load module. As seen below the external voltage reference and the rating voltage/current have a linear relationship. By varying the reference voltage between 0~10V the voltage/current setting will be changed accordingly.

External Voltage Control

Voltage/

Current Setting

(Percent

Rating)

External Voltage

100%

10V

Channel Control

PEL-2000A Series User Manual

To determine the Percent Rating (voltage or current load input), use the following formula;

 

VorARating

VoltageExternal

InputLoad 

Where “Rating V or A” is the rating voltage/current of the load module.

Current Monitor

The load current input can be externally monitored using the IMON pin of a channel control connector. The IMON pin outputs a voltage of 0~10V to represent the input current as a percentage (0~100%) of rating current.

Current Monitor

Output

Load Input Current

10V

Rating current

To determine the Current Monitor Output (IMON) , use the following formula;

ARating

currentinputLoad

IMON 10

Where “Rating A” is the rating current of the load module.

GETTING STARTED

Voltage Monitor

The input voltage, like the load input current can be externally monitored with the channel control connectors. The VMON pin of the channel control connector outputs a voltage of 0~10V to represent the load input voltage as a percentage (0~100%) of the rating voltage.

Voltage Monitor

Output

Load Input

Voltage

10V

Rating voltage

To determine the Voltage Monitor Output (VMON) , use the following formula;

VRating

voltageinputLoad

VMON 10

Where “Rating V” is the rating voltage of the load module.

PEL-2000A Series User Manual

Turning on the Load

A load is turned on when Load On input is set to On (active low). A load is turned off when the Load On input is set to Off (active high).

When a load is turned on from the channel control interface, the load can be turned off from the mainframe, local module and via remote control. However the opposite is not true; when a load is turned off using the channel control interface, the load cannot be turned on via the mainframe, local module or via remote control.

For connections and configurations, see pages 59 and 270 respectively.

Interface and File System

Background

RS-232 configuration.

Page 231

RS-232 pin connection.

Page 268

GPIB configuration.

Page 233

GPIB pin configuration.

Page 269

USB configuration.

Page 234

Background

The PEL series is able to save and recall a number of different data types for each channel:

Presets Memory Setup SEQ (Sequence)

All data types can be saved and recalled to internal memory or saved to a USB flash drive. Each channel has its own dedicated memory for each

Interface

The PEL-2000A series support RS232, GPIB and USB remote frame control. Only one type of connection is supported at any one time.

For connection options and configurations see the options below.

GETTING STARTED

File System

PEL-2000A Series User Manual

data type. Thus files are saved/recalled for each channel and each data type.

Preset Data

Preset data can be saved into 10 memory slots for each channel. Preset data contains the mode, range, CV response speed and Go/NoGo settings.

Internal Format

External Format

P0~P9

20X0X_XX.P

Preset Contents

Preset data contains the following data;

CHAN

 Mode

 Range

 Static/Dynamic

 CV response

speed

Go/NoGo

 SPEC Test

 High

 Center

 Entry Mode

 Low

Memory Data

Each channel can save up to 120 different Memory data types (M001~M120) into internal memory. Memory data contains general channel settings and is used when programming sequences. Memory data can be stored both internally and

externally to USB. Preset data and Memory data store the same contents.

Internal Format

External Format

M001~M120

20X0X_XX.M

Memory Contents

Memory data contains the following data;

CHAN

 Mode

 Range

 Static/Dynamic

 CV response

speed

Go/NoGo

 SPEC Test

 High

 Center

 Entry Mode

 Low

GETTING STARTED

SEQ Data

SEQ data contains Sequence data. SEQ data can only be saved to and from USB. SEQ refers to Sequence data, not Program sequences.

Internal Format

External Format

N/A (Internal buffer)

20X0X_XX.A

SEQ Contents

SEQ data contains the following data;

Seq.Edit

 No. (Points)

 Slew rate

 Duration time

 Value

 Slew rate

Loop

 Repeat

 On End Load

 Start of Loop

 CC Vrange

Setup Data

Setup data can be saved to 4 internal memory slots. Setup data contains Memory data, Program Sequence, Chain data, configuration settings and operation settings for every channel. Setup data can be saved to Internal memory or to USB.

Internal Format

External Format

Setup Memory 1~4

200X0_XX.S

Setup Contents

Setup data contains the following data;

Program

 PROG

 Memory

 On-Time

 P/F-Time

 Short Channel

 SEQ (program

sequence no.)

 Run

 Off-Time

 Short-Time

Chain

 Start

 Program

Sequence (P01~P12)

PEL-2000A Series User Manual

Run

 Active Channel

(CH01~08)

CHAN

 Mode

 Range

 Static/Dynamic

 CV response

speed

Go/NoGo

 SPEC Test

 High

 Center

 Entry Mode

 Low

Save: Internal memory

When saving data to internal memory, either the current channel or all the channel data can be saved. Not all data types can save the current channel or all the channel data.

Data Type

Current Ch

All Ch

Preset



Memory



─

SEQ

 (single save)



Setup

─



Save: External memory

Only SEQ, Memory and Preset data can be saved for a single channel to USB. All four data types (SEQ, Memory, Setup, Preset) can save all channels to USB.

Data Type

Current Ch

All Ch

Preset



Memory



SEQ



Setup

─



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