6000 Series
Operation Manual
6000 Series
Copyright
Copyright © 1995 by this company. All rights reserved. No part of this publication may be
reproduced in any form or by any means without the written permission of this company.
Disclaimer
This company makes no representations or warranties, either expressed or implied, with respect to the
contents hereof and specifically disclaims any warranties, merchantability o r fitness for any pa rticular
purpose. Further, this company reserves the right to revise this publication and to make changes from
time to time in the contents hereof without oblig ation of this company to notify any person of such
revision or changes.
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6000 Series
Table of Contents
1. Overview.................................................................................. 1
1.1 Introduction ...........................................................................................1
1.2 Unpacking and Checking......................................................................1
2. Front and Rear Panels............................................................ 2
2.1 Front Panel............................................................................................2
2.2 Rear Panel............................................................................................5
3. Operation................................................................................. 6
3.1 Pre-installation ......................................................................................6
3.2 Setting the Output Voltage and Output Current....................................6
3.3 Constant Voltage/Constant Current Characteristics.............................7
3.4 Operation Modes...................................................................................7
3.4.1 Independent Mode......................................................................7
3.4.2 Serial Tracking Mode..................................................................8
3.4.3 Parallel Tracking Mode...............................................................9
3.5 Fixed 5V/5A Output.............................................................................10
3.6 Serial Operation..................................................................................11
3.7 Parallel Operation ...............................................................................12
4. Maintenance .......................................................................... 13
4.1 Changing the Fuse..............................................................................13
4.2 Changing the Voltage..........................................................................13
5. Specifications.......................................................................... 14
iii
6000 Series
1. Overview
This 6000 Series Direct Current (DC) Power Supply Operation Manual contains an introduction to the power
supply, a description of its functions, the operation procedure, the scope of applications and its specifications.
The models available under this series are the 6302A, 6302AR, 6302D, 6302DR, 6303A, 6303AR, 6303D,
6303DR, 6306A, 6306AR, 6306D, 6306DR, 6603A, 6603AR, 6603D, and 6603DR.
1.1 Introduction
The 6000 Series is a dual-channel-output DC power supply with the following features:
• Twin power output with tracking function for automatic selection of parallel or serial connectio n
• Short-circuit protection against external input while providing constant voltage and constant current
• Allows serial or parallel connection with the same power supply model
• 5V/5A constant-voltage output
Special Functions on Remote Models
The following functions are available only on the remote models 6302AR, 6302DR, 6303AR, 6303DR,
6306AR, 6306DR, 6603AR and 6603DR:
• Control of output voltage and current using external voltage and resistor
• Output voltage readback
• Output current readback
• Random master or slave combinatio n
1.2 Unpacking and Checking
Unpack and check that you have the following items:
• One power cable
• This Operation Manual
• Remote-Control Operation Manual (remote models only)
• Two ACS-002 banana clips
• Two 9-pin RS-232C connectors (remote models only)
1
2. Front and Rear Panels
2.1 Front Panels
6000 Series
Front panel with digital display for models 6302D, 6302DR, 6303D, 6303DR, 6306D, 6306DR, 6603D and 6603DR
2
6000 Series
Front panel with analog meter for models 6302A, 6302AR, 6303A, 6303AR, 6306A, 6306AR, 6603A and 6603AR
Figure 1 Front Panels
(1) C.V. Mode LED: Uses green LED to indicate constant voltage at slave power
(2) Power Switch: Power ON/OFF switch (1=ON, 0 = OFF)
(3) C.C. Mode LED: Uses red LED to indicate constant current at slave power
(4) SLAVE Current Indicator
a) Analog: As indicated by the pointer on the 40x40mm (Class 2.5) meter
b) Digital: Displayed in full 3-digit red 0.52" LED
3
6000 Series
(5) SLAVE Voltage Indicator
a) Analog: As indicated by the pointer in the 40 x 40 mm (Class 2.5) meter
b) Digital: Displayed in full 3-digit red 0.52" LED
(6) MASTER Voltage Indicator
a) Analog: As indicated by the pointer on the 40 x 40 mm (Class 2.5) meter
b) Digital: Displayed in full 3-digit red 0.52" LED
(7) MASTER Current Indicator
a) Analog: As indicated by the pointer on the 40 x 40 mm (Class 2.5) meter
b) Digital: Displayed in full 3-digit red 0.52" LED
(8) C.V. Mode LED: Uses green LED to indicate constant voltage at master power
(9) C.C. Mode LED: Uses red LED to indicate constant current at master power
(10) SLAVE Current Adjustment Knob: For adjusting output current when slave is at constant current
(C.C.) mode
(11) Slave Voltage Adjustment Knob: For adjusting output voltage when slave is at constant voltage
(C.V.) mode
(12) Slave - Output Terminal: Slave negative output terminal (black)
(13) Slave GND Terminal: Slave ground terminal (green)
(14) Slave + Output Terminal: Slave positive output terminal (red)
(15) and (18) TRACKING MODE Switches: The switch settin g label is located between th ese two switches
and you can set the power supply to operate in any of the following modes:
IND: Independent Mode
SER: Series Mode
PAR: Parallel Mode
(16) 5V- Output Terminal : 5V negative output terminal (black)
(17) 5V+ Output Terminal: 5V positive output terminal (red)
(19) Master - Output Terminal: Master negative output terminal (black)
(20) Master GND Terminal: Master ground terminal (green)
(21) Master + Output Terminal: Master positive output terminal (red)
(22) MASTER Voltage Adjustment Knob: For adjusting output voltage when master power is at
constant voltage (C.V.) mode
(23) MASTER Current Adjustment Knob: For adjusting output current when master power is at constant
current (C.C.) mode
(24) Warning Label: The bare parts of the output terminals and fittings are electrical sensing parts. Do
not touch these parts during use.
(25) OVERLOAD LED: 5V/5A overload indicator LED (red)
4
2.2 Rear Panel
6000 Series
26
(26) Remote Control Function Switches: Only available on remote models. Refer to the Remote-Control
Operation Manual for details.
(27) D-Type 9-pin connector (RC1) for Remote Control
(28) D-Type 9-pin connector (RC2) for Remote Control
(29) Power Input Socket
(30) Input Power Fuse Holder and Input Voltage Selector: Acceptable input voltage ratings are 100V,
120V, 220V and 240V. The selected input voltage is set to the position above the
panel above shows that the input voltage is set to 100V).
27
Figure 2 Rear Panel
28
29 30
mark (the rear
5
6000 Series
3. Operation
3.1 Pre-installation
Before you turn on the power:
• Check that the input voltage from your power source conforms to the voltage rating selected. Refer
to the Input Power Fuse Holder and Input Voltage Selector in section 2.2. The tolerance is
the indicated voltage at 50/60 Hz.
• Place this power supply in a well-ventillated area and do not to block the ventillation holes. Poor
heat dissipation leads to overheating which may cause unstable operation and shorten the service life
of this equipment.
• Be sure to use the correct fuse for your model. Refer to Table 1 for the type of fuse you should use
for a given voltage.
3.2 Setting the Output Voltage and Output Current
To set the output voltage and current, follow these steps:
+10% of
1. Check that the total load to be connected does not exceed the maximum output voltage and current of
this power supply.
2. Open the circuit between the + and the - output terminals. Turn the voltage adjustment knob
clockwise until you get the desired output voltage rating.
3. Turn the current adjustment knob counterclockwise until you get the minimum value.
4. Short the circuit between the + and the - output terminals. Note that the current rating of the shorting
wire should be greater than or equal to the required current.
5. Turn the current adjustment knob clockwise until the current in dicator on the front panel displays the
required current rating.
6. Remove the shorting wire from the + and the - output terminals. The power supply returns to the
constant voltage mode and is ready to use.
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6000 Series
3.3 Constant Voltage/Constant Current Characteristics
This power supply can automatically operate between constant voltage and constant current by responding
quickly to rapid load changes. The following figures shows the relative changes between the constant current
and the constant voltage modes.
Constant Voltage
Crossover Point
Output
Voltage
Output Current
Figure 3 Constant Voltage/Constant Current
Constant
Current
3.4 Operation Modes
3.4.1 Independent Mode
The master and the slave power can be used independently to generate voltage and current. To operate in the
independent mode, follow these steps:
1. Set the TRACKING MODE switches on the front panel to IND.
2. Turn on the POWER switch.
3. Set the master output voltage and current as described in section 3.2.
4. Set the slave output voltage and current as described in section 3.2.
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6000 Series
3.4.2 Serial Tracking Mode
Under this mode, the - Master Output Terminal is automatically shorted with the + Slave Output Terminal.
This serial output is generated from the + Master Output Terminal and the - Slave Output Terminal. The
output voltage is twice the set master output voltage while the output current is the same as the master setting
value.
To operate in the serial mode:
1. Set the TRACKING MODE switches on the front panel to SER.
2. Turn on the POWER switch.
3. Turn the SLAVE Current Adjustment Knob clockwise to maximum.
4. Set the master output voltage and current as described in section 3.2.
The following figures show two different serial operations:
V
A
OVER LOAD
5V5A
-
+
V0 = 2V1
-
The output voltage is twice the set master
output voltage. The output terminal is
connected from the + Master Output
Terminal to the - Slave Output Terminal.
-
+
+
V1
V
A
OVER LOAD
5V5A
-
+
V2 = V1
-
The output voltages for the master and
the slave are the same. You can apply
two independent loads or a load
requiring both positiveand negative
voltages as long as the positive and
negative voltages are the same.
Figure 4 Serial Connections
-
+
+
V1
8
6000 Series
3.4.3 Parallel Tracking Mode
Under this mode, the - Master Output Terminal is shorted with the - Slave Output Terminal while the +
Master Output Terminal is shorted with the + Slave Output Terminal automatically.
This parallel output is generated from the + Master Output Terminal and the -Master Output Terminal (or Slave Output Terminal). The output current is twice the set master current while the output voltage is the
same as the master setting value.
To operate in the parallel mode:
1. Set the TRACKING MODE switches on the front panel to PAR.
2. Turn on the POWER switch.
3. Turn the SLAVE Current and Voltage Adjustment Knobs clockwise to maxi mu m.
4. Set the master output voltage and current as described in section 3.2.
V
A
OVER LOAD
-
+
5V5A
-
V1
Figure 5 Parallel Connection
-
+
+
V1
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6000 Series
A
3.5 Fixed 5V/5A Output
This is the standard 5V/5A power output for use by TTL logic circuits. When the load exceeds 5 amperes,
the red OVERLOAD LED lights up. The following figures show the parallel-output connection method and
its characteristic curve.
V
V
-
+
5V
OVER LOAD
-
A
5V5A
-
+
+
LOAD
Figure 6 Fixed 5V/5A Output Connection
5A
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6000 Series
M
(VO)
3.6 Serial Operation
Serial connection is used to connect two or more power supplies in series to obtain a higher voltage ratings
(maximum 240V for this power supply).
Figure 7 shows the serial connection between two 6303D power supplies at series tracking. One unit is set at
60V/2A (MASTER setting is 30V/2A) while the other is at 40V/3A (MASTER setting is 20V/3A). Figure 8
shows the serial connection voltage/current output versus load changes.
V
A
OVER LOAD
5V5A
-
-
+-+
V1=VS1+VM1
+
V
A
OVER LOAD
5V5A
-
+-+
V2=VS2+V
Serial Tracking ModeSerial Tracking Mode
V
TOTAL OUTPUT VOLTAGE
-
+
100
80
60
40
V1 C.V. MODE
V1
V2
SET : V2 = 40V / 3A
V1 C.C. MODE
V2 C.V. MODE
V2 C.C. MODE
20
SET : V1 = 60V / 2A
VO = V1 + V2
60 50 40 30 20 13.3
OHM
2A
60 50 40 30 20 13.3
OHM
Figure 7 Serial Connection Diagram Figure 8 Serial Voltage/Current Output vs. Load
Change
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6000 Series
2
2
3.7 Parallel Operation
Parallel connection is used to connect two or more power supplies o f the same model in parallel to obtain a
higher current output (maximum 24A for this power supply).
Figure 9 shows the parallel connection between two 6303D power supplies at parallel tracking. One unit is
set at 30V/5A (MASTER setting is 30V/2.5A) while the other is at 20V/6A (MASTER setting is 20V/3A).
Figure 10 shows the parallel connection voltage/current output versus load changes.
A
SET : V1 = 30V / 5.0A
SET : V2 = 20V / 6.0A
[V1&V2 C.C. MODE]
[V1 C.C. MODE
12A
V2 C.V. MODE]
[V1&V2 C.V. MODE]
9A
5A
3A
V
A
OVER LOAD
5V5A
-
+-+
I1=IS1+IM1
-
+
V
A
OVER LOAD
5V5A
-
+-+
I2=IS2+IM
30
OHM
10
86421
V
-
+
30
20
10
IO = I1 + I
10
86421
30
OHM
Figure 9 Parallel Connection Diagram Figure 10 Parallel Voltage/Current Output vs. Load
Change
NOTE: The difference between the voltage settings for two or more power supplies of the same model
connected in parallel should not exceed 15V. The minimum voltage setting should not be less
than 10V. If it is necessary to be lower than 10V, the voltage difference should b e less than 2V.
The closer to 0V, the smaller the difference required.
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6000 Series
4. Maintenance
4.1 Changing the Fuse
The fuse is located inside the input power fuse holder (refer to Figure 2). You need to change the fuse when:
• the fuse is blown out
• you change the voltage rating
In any case, replace the fuse with one of the same rating. Refer to Table 1 for the type of fuse used for each
model and voltage.
NOTE: Unplug the power cord before you change the fuse.
4.2 Changing the Voltage
To change the voltage, follow these steps:
1. Use a flathead screwdriver to detach the Input Power Fuse Holder and Input Voltage Selector unit
(refer to Figure 2).
2. Turn the unit so that the desired input vo ltage is positioned above the
4. Check that the fuse to conform to this new voltage rating. Refer to Table 1 below for the correct fuse
rating.
5. Replace the Input Power Fuse Holder and Input Voltage Selector unit.
Table 1 Power Supply Weight , Dimensions and Fuse Specification
Model Weight (Approx.) Dimensions
W x H x D (mm)
Net Gross Machine Package 100V 120V 220V 240V
6302A/AR/D/DR 9.0 KG 10.5 KG 230x160x324 364x265x422 4A 4A 2A 2A
6303A/AR/D/DR 9.0 KG 10.5 KG 230x160x324 364x265x422 5A 5A 2.5A 2.5A
6306A/AR/D/DR 13 KG 14.4 KG 230x160x366 364x265x464 8A 8A 4A 4A
6603A/AR/D/DR 13 KG 14.4 KG 230x160x366 364x265x464 8A 8A 4A 4A
Time-Delay Type 6 x 30 mm
mark.
Fuse
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6000 Series
5. Specifications
Model
Specification
Output Voltage 0-30V x 2 0-30V x 2 0-30V x 2 0-60V x 2 0-30V x 2 0-30V x 2 0-30V x 2 0-60V x 2
Output Current 0-2A x 2 0-3A x 2 0-6A x 2 0-3A x 2 0-2A x 2 0-3A x 2 0-6A x 2 0-3A x 2
CONSTANT VOLTAGE CHARACTERISTICS
Load Regulation + 0.01% + 2 mV + 0.01% + 2 mV
Line Regulation + 0.01% + 2 mV + 0.01% + 2 mV
Ripple & Noise (< 200W) < 0.5mVrms < 1mVrms
Ripple & Noise (> 200W) < 1mVrms < 1mVrms
CONSTANT CURRENT CHARACTERISTICS
Load Regulation (<200W) < 10mA < 10mA
Load Regulation (>200W) < 15mA < 15mA
Line Regulation + 0.01% + 2mA + 0.01% + 2mA
Ripple & Noise (< 200W) < 1mArms < 1mArms
Ripple & Noise (> 200W) < 3mArms < 3mArms
DISPLAY ACCURACY
Analog Display (A)
Digital Display (D)
PROGRAMMING SPEED
Rise Time (No Load)
(Load)
Fall Time (No Load)
(Load)
OUTPUT IMPEDANCE
RECOVERY TIME
FUNCTIONS
Series Connection Different models can be connected in series (< 240V)
Parallel Connection Same models can be connected in parallel (< 24A)
Master - Slave N A Yes
REMOTE CONTROL
Voltage Programmable
By External DC Voltage
By External Resistance
Current Programmable
By External DC Voltage
By External Resistance
TRACKING OPERATION
Tracking Error + 0.2% + 10mV
Series Regulation + 0.3% + 10mV
5V FIXED OPERATION
Load Regulation < 10mV
Line Requlation < 5mV
Ripple & Noise < 2mVrms
Voltage Accuracy 5V + 0.25V
Output Current 5A
6302A
6302D
Full-scale 3%
< 0.1% + 2d
< 100mS
< 200mS (<6A), < 500mS (<10A), < 1S（> 10A)
< 2.5S
< 250mS
< 2mΩ + 2 µH
< 100 µS to within 0.1% of set voltage (50% to 100% load change)
6303A
6303D
NA
NA
6306A
6306D
6603A
6603D
6302AR
6302DR
0 to 10V, Control 0 to voltage setting
0 to 10KΩ, Control 0 to maximum voltage
0 to 10V, Control 0 to current setting
0 to 10KΩ, Control 0 to maximum current
6303AR
6303DR
6306AR
6306DR
6603AR
6603DR
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6000 Series
Model
Specification
Output Voltage 0-30V x 2 0-30V x 2 0-30V x 2 0-60V x 2 0-30V x 2 0-30V x 2 0-30V x 2 0-60V x 2
Output Current 0-2A x 2 0-3A x 2 0-6A x 2 0-3A x 2 0-2A x 2 0-3A x 2 0-6A x 2 0-3A x 2
VOLTAGE/CURRENT READBACK AVAILABLE
Voltage Readback NA 0 to 10V for full-scale voltage in Master
Current Readback NA 0 to 0.3V for full-scale current in Master
OPERATION MODE
Independent Two independent outputs and 5V fixed output
Serial Output from 0 to + rating voltage at rating ampere
Parallel Output from 0 to double rating current at voltage rating
POWER SOURCE ACV 100/120/220/240 + 10%, 50/60 Hz
ACCESSORIES ACS-002 X 2 ACS-002 X 2, 9-pin D-type connector x 2
DIMENSIONS
W X H X D (mm)
6302A
6302D
Output from 0 to rating voltage and 0 to rating ampere
Output from 0 to double rating voltage at rating ampere
230 X 160 X 324 230 X 160 X 366 230 X 160 X 324 230 X 160 X 366
6303A
6303D
6306A
6306D
6603A
6603D
6302AR
6302DR
6303AR
6303DR
6306AR
6306DR
6603AR
6603DR
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