GW Instek SPD-3606 User Manual

DC Power Supply

SPD-3606

USER MANUAL

GW INSTEK PART NO. 82PD-36060M0

This manual contains proprietary information, which is protected by copyrights. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of 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 rights to change specification, equipment, and maintenance procedures at any time without notice.

ISO-9001 CERTIFIED MANUFACTURER

Good Will Instrument Co., Ltd. No. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan.

TABLE OF CONTENTS

SPD-3606 User Manual

FAQ ................................................................................ 56

Table of Contents

SAFETY INSTRUCTION ..................................................... 5

OVERVIEW ........................................................................ 9

SPD-3606 Main Features......................10

Principle of Operation.......................... 11

Front Panel Overview........................... 14

Rear Panel Overview ............................17

CV/CC Crossover Characteristics ......... 18

SETUP............................................................................. 19

Installation Location ............................ 20

Power Up ............................................. 21

Over Voltage Protection Setup ............. 22

Load Cable Connection ........................ 24

Output On/Off..................................... 25

OPERATION.................................................................... 26

CH1/CH2 Independent Mode .............. 26

CH3 Independent Mode....................... 28

CH1/CH2 Tracking Series Mode........... 30

CH1/CH2 Tracking Parallel Mode ........ 36

APPENDIX ...................................................................... 57

Fuse Replacement................................ 57

Volume Guard (Optional).....................58

Specification ........................................59

Declaration of Conformity.................... 61

INDEX............................................................................. 62

REMOTE OUTPUT CONTROL.......................................... 39

PERFORMANCE VERIFICATION ...................................... 40

Output Voltage Verification.................. 42

Tracking Series Voltage Verification...... 45

Output Current verification.................. 47

OVP verification................................... 50

Recording Tables.................................. 54

SAFETY INSTRUCTION

SPD-3606 User Manual

Safety Guidelines

General Guideline

• Do not place any heavy object on SPD-3606.

SAFETY INSTRUCTION

This chapter contains important safety instructions that you must follow when operating SPD-3606 and when keeping it in storage. Read the following before any operation to insure your safety and to keep the best condition for SPD-3606.

Safety Symbols

These safety symbols may appear in this manual or on SPD-3606.

WARNING

CAUTION

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

Caution: Identifies conditions or practices that could result in damage to SPD-3606 or to other properties.

DANGER High Voltage

Attention Refer to the Manual

Protective Conductor Terminal

Earth (ground) Terminal

CAUTION

• Avoid severe impacts or rough handling that

leads to damaging SPD-3606.

• Do not discharge static electricity to SPD-3606.

• Do not block or obstruct the cooling fan vent

opening.

• Leave a space around SPD-3606, at least 3cm to

the left and right.

• Do not perform measurement at circuits directl

connected to Mains (Note below).

Power Supply

WARNING

• Do not disassemble SPD-3606 unless you are

qualified as service personnel.

(Measurement categories) EN 61010-1:2001 specifies the measurement categories and their requirements as follows. SPD3606 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.

• AC Input voltage: 115V/230V ±15%, 50/60Hz

• Connect the protective grounding conductor of

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

Fuse

WARNING

• Fuse type: T10A/250V

• Make sure the correct type of fuse is installed

before power up.

SAFETY INSTRUCTION

SPD-3606 User Manual

Cleaning SPD3606

Operation Environment

Storage environment

• To ensure fire protection, replace the fuse only

with the specified type and rating.

• Disconnect the power cord before fuse

replacement.

• Make sure the cause of fuse blowout is fixed

before fuse replacement.

• 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 chemical or cleaner containing harsh

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

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

almost non-conductive pollution (Note below)

• Relative Humidity: < 80%

• Altitude: < 2000m

• Temperature: 0°C to 40°C

(Pollution Degree) EN 61010-1:2001 specifies the pollution degrees and their requirements as follows. SPD-3606 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.

• Location: Indoor

• Relative Humidity: < 70%

• Temperature: −10°C to 70°C

Power cord for the United Kingdom

When using SPD-3606 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:

Green/ Yellow: Earth

Blue: Neutral

Brown: Live (Phase)

As the colours of the wires in main leads may not correspond with the colours 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 the letter E or by the earth symbol coloured Green or 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, cable of

0.75mm

should be protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used.

Any moulded mains connector that requires removal /replacement must be destroyed by removal of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed on this label.

OVERVIEW

This chapter describes SPD-3606 in a nutshell, including its main features and front / rear panel introduction. After going through the overview, follow the Setup chapter (page19) to properly power up and set operation environment.

For initial inspection, refer to the Performance verification chapter (page40).

SPD-3606 User Manual

SPD-3606 Main Features

Performance

Operation

• Low noise (≤ 50dB, Cooling fan controlled by

Heatsink temperature)

• High efficiency power conversion, minimum

70% with full load

• Fast Output On/Off response (≤100ms)

• Low temperature coefficient

(≤100ppm/°C+3mV, ≤150ppm/°C+3mA)

• Compact size, light weight (6kg)

• Constant voltage operation

SPD-3606

VOLTAGEVOLTAGE CURRENTCURRENT

0.1 5V , 3A

CH1

CH3

OVER LOAD

VOLTAGE

60V/3A

INDEP. SERIES

0 60V , 3A 0 30V , 6A

CH1 / CH3CH2

30V/6A

Dual−Range DC Power Supply

OUTPUT CH2 CH1

O.V.P.

ON / OFF

SET C.V.

TRIP C.C.

SLAVE MASTER

C.V.

C.C. PAR.

CH2 CH1 CH3GND

0 60V , 3A 0 30V , 6A

TRACKING

PARALLEL

Main Feature SPD-3606 Main Features .................................10

Theory Principle of Operation..................................... 11

Panel overview Front Panel Overview ......................................14

Rear Panel Overview........................................ 17

CV/CC CV/CC Crossover Characteristics..................... 18

• Constant current operation

• Tracking Series operation

• Tracking Parallel operation

• Output On/Off control

• 3 outputs with full Voltage control

• Output range selection for CH1 and CH2,

60V/3A or 30V/6A

Protection

Interface

• LED display

• Over voltage protection (OVP)

• Overload protection

• Reverse polarity protection

• Remote control output On/Off terminal

OVERVIEW

SPD-3606 User Manual

Principle of Operation

Block diagram

Power Supply

EMI Filter

Rectifier/

Doubler

PCB A

Power supply converts the AC mains into DC Power source for internal units. Channel 1/2/3 control and produce the actual DC output. Displa shows output and OVP level, receiving feedback from each channel. Internal components are placed on four printed circuit boards, A ~ D.

Detailed description of each module starts on the next page.

PCB B PCB C

CH2

Power

Stage

AUX

Power

CH1

AUX

Power

Stage

CH3

Power

Stage

Output

Controller

Tracking

Controller

Output

Controller

Output

PCB D

Display

EMI Filter

Other than deleting conduction EMI (electromagnetic interference), the EMI unit contains protective circuits such as Inrush current limit resistor and Surge absorber. Internal units are protected under power-up sequence, normal

Rectifier / Doubler

operation, and AC mains fluctuation.

The Rectifier unit converts AC mains into DC Power source. For 115V±15% AC, double-wave rectification is used; for 230V±15% AC, full-wave rectification. An internal selector automatically switches the rectification circuit accordingly. The final DC Voltage reaches 240V ~ 370V.

CH1/2 Power Stage

The Power stage for Channel1 and 2 produce the outputs using the combination of Half-bridge converter and Linear regulator. The Half-bridge converter adopts PWM (pulse-width modulation) with high frequency switching. The Linear regulator adjusts the output Voltage down to 0V.

CH1/2 AUX Power

The AUX Power for Channel 1 and 2 produces the power source for auxiliary devices, such as analog/digital controller, relay, LED display, and cooling fan. Altogether four pairs of power source are generated for different purpose: ±12V, +5V, and +12V.

CH3 Power Stage

The Power stage for Channel 3 produces both the channel output and the power source for auxiliary devices. It uses the combination of Flyback converter and Linear regulator, carrying lower efficiency compared to Channel 1 and 2. The flyback converter also produces ±12V for ICs and 4~8V settable Voltage.

OVERVIEW

O.V.P

OUTPUT

SPD-3606 User Manual

CH1/2/3 Controller

Feedback control unit

OVP setting unit

Fan control unit

Tr ac k in g Controller

LED Display

The Controller for Channel 1, 2, and 3 takes care of the interface between SPD-3606 and users. Several sub-units comprise the Controller, including:

• Feedback control unit

• OVP setting unit

• Fan control unit

Detailed description of each unit follows.

The Feedback control unit receives the control signal for Voltage/Current output level and the level feedback signal from the actual output. The difference between the two signals are amplified and used as the control signal for the Power stage to achieve stable output level.

The SVR (small variable resistor) sets the protection point so that the OVP setting unit shuts down the output when the output Voltage level exceeds the configured level.

Using NTC (negative temperature coefficient) resistor, the Fan control unit changes the control Voltage for the cooling fan according to the temperature change, achieving low-noise and linear speed control.

The Tracking controller controls Channel 2 output level when in tracking series or parallel mode. In tracking series mode, Channel2 output Voltage is controlled by Channel1 output Voltage level. In tracking parallel mode, Channel2 output Current is controlled by Channel1 output Current level.

The LED display shows the Channel 1/2/3 output Voltage/Current level. The A/D converter changes the analog signal coming from each channel into digital format to be displayed.

Front Panel Overview

Tracking Mode

Switches

CH2 CH1 CH3GND

0 60V , 3A 0 30V , 6A

Ground

TRACKING

SLAVE MASTER

C.V.

C.C. PAR.

CH2

Te rm i na l

CH2 Output

Terminal

SET

TRIP

ON / OFF

60V/3A

Switch

60V/3A

30V/6A

Dual−Range DC Power Supply

Output Key

OVP

OUTPUT CH2 CH1

ON / OFF

Indicator

Power Switch

CH2 Output

Knob

Power switch

OVP indicator

Output Key

Output range switch

CH2 MeterOutput Range

O.V.P.

SET C.V.

TRIP C.C.

Indicator

CH1/3 Meter

CH1/CH3 Meter Switch

CH1

CH1 / CH3CH2

CH3

SPD-3606

CH3 Overload

CH3

INDEP. SERIES

PARALLEL

VOLTAGEVOLTAGE CURRENTCURRENT

OVER LOAD

VOLTAGE

Indicator

CH3 Voltage Knob

0 60V , 3A 0 30V , 6A

CH1

0.1 5V , 3A

CH3 Output Terminal

Indicator

CH1 Output

Te rm i na l

Turns On

CH1 Output

Knob

or Off the main power.

For power up sequence, see page20.

Turns green during the OVP setup. Turns red (tripped) when the output Voltage exceeds the setting. For OVP details, see page22.

Turns the output On (green) or Off (gray), all three channels at once.

Selects the output range, 60V/3A or 30V/6A.

30V/6A

OVERVIEW

TRA

CKIN

OVE

OAD

SPD-3606 User Manual

CH2 meter

Tracking mode switches

CH1/3 meter + switch

Displays Channel2 current (A) and voltage (V).

INDEP.

SERIES

PARALLEL

Independent

CH2

Activates and selects the tracking mode. For trackin page30 (Series) and page36 (Parallel).

Tra c ki n g S eri es

mode details, see

Tracking Parallel

Displays Channel1 or Channel3 current (A) and voltage (V). The switch on the right selects the channel, 1 (up) or 3 (down).

Channel1 CV/CC indicator

Channel2 CV/CC/PAR indicator

C.V.

C.C.

C.V.

C.C. PAR.

Turns green when operating in Constant Voltage (CV) mode, red in Constant Current (CC) mode. For CV/CC characteristics, see page18.

Independent mode: Turns green in Constant Voltage (CV) mode, red in Constant Current (CC) mode.

Tracking parallel mode (page36): When operating in the Tracking Parallel mode, the Channel2 indicator always stays red (PAR). Channel1 indicator shows the CV/CC status.

CH1

Channel3 overload indicator

CH1 / CH 3

Turns red when Channel3 output exceeds the current rating, 3A.

CH3

Channel3 switches from Constant Voltage (CV) mode to Constant Current (CC) mode.

Channel1/2/3 output terminal

CH3

0.1 5V , 3A

Accepts the load cables. For cable connection details, see page24.

OVERVIEW

SPD-3606 User Manual

Rear Panel Overview

Remote Control Terminal

OFF

SER. NO. LB

Remote control terminal

OVP setting point

Power cord / fuse socket

OVP Settin Point

O.V.P. SETNORMAL

CH3CH2CH1

O.V .P. SETNORMAL

CH3CH2CH1

Cooling Fan

Power Cord / Fuse Socket

WARNING

DISCONNECT POWER CORD

BEFORE REPLACING FUSE

REPLACE FUSE

AS SPECIFIED

FUSE RATING

115V

230V

550 WATTS 900 VA MAX 50/60 H z

T10A 250V

Accepts remote output On/Off control connection. For details, see page39.

Activates Over Voltage Protection (OVP) and sets the protection threshold for channel1/2/3. For OVP setup details, see page22.

The power cord socket accepts the AC mains: 115V/230V, 50/60Hz. For power up details, see page20.

CV/CC Crossover Characteristics

Background

SPD-3606 automatically switches voltage mode (CV) and constant current mode (CC), according to load condition.

When the current level is smaller than the output setting, SPD-3606 operates in Constant Voltage mode. The indicator on the front panel turns green (C.V.) The Voltage level is kept at the setting and the Current level fluctuates according to the load condition until it reaches the output current setting.

When the current level reaches the output setting, SPD-3606 starts operating in Constant Current mode. The indicator on the front panel turns red (C.C.) The Current level is kept at the setting but the Voltage level becomes lower than the settin to suppress the output power level from overload. When the current level becomes lower than the setting, SPD3606 goes back to the Constant Voltage mode.

Diagram

Vout

Vmax

Constant

Voltage

between constant

, in order

C.V.

.C.

C.V.

C.C.

The fuse holder contains the AC

Constant

Current

main fuse. For fuse replacement details, see page57.

Imax

Iout

SETUP

This chapter describes how to properly power up and configure SPD-3606 before the operation. For checking the functionality, refer to the Performance verification chapter, page40.

SPD-3606 User Manual

Installation Location

Ventillation space

Leave at least 3cm around SPD-3606, to the left and right.

A A

ON / OFF

O.V.P. SETNORMAL

CH3CH2CH1

UTPUT

Installation Installation Location........................................20

Power Power Up ........................................................21

OVP Over Voltage Protection Set.............................22

Load Wire Load Cable Connection....................................24

Output Output On/Off ................................................25

Cooling fan opening

The cooling fan is located on the rear panel. Allocate extra space on the back of SPD-3606 so that the cooling fan opening would not become blocked.

Cooling

Fan

+ 22 hidden pages