Kikusui PAB 18-1A User manual

''j
REGULATED DC POWER. SUPPLIES
PAB18-1 A
PAB18-I.8A
PAB18-3A
PAB32-1.2A
PAB32'2A
PAB70r tA
PAB110-6.6A
PAB 250-0,25i
PAB350‘0.1A
-',1
s' ^
KlKUSlil ELECTRONICS CORP.

INSTRUCTION MANUAL
REGULATED DC POWER SUPPLY
PAB-A SERIES
APPLICABLE MODELS
PAB 18-1
A
PAB 18-1.8A
PAB 18-3A
PAB 32-1. 2A
PAB 32-2A
PAB 70-1
A
PAB 110-0.6A
PAB 250-0. 25A
PAB 350-0.1
A
This Instruction Manual is applicable to the PAB-A
Series employed PC board A-550.

On Power Supply Source, it is requested to replace the related places in the
instruction manual with the following items.
(Please apply the item of Vmark,
)
Power Supply Voltage; to VAC
Line Fuse; to A
Power Cable; to 3~core cable (See Fig. 1for the colors.
)
Blue (NEUTKAL)
Brown
(LlVf
Green/Yellow (GNO)
fhite (Neutral:
-a
or Black
Fig. 1
Please be advised beforehand that the above matter may cause some alteration
against explanation or circuit diagram in the instruction manual.
*AC Plug; In case of Line Voltage 125V AC or more, AC Plug is in principle
taken off and delivered, in view of the safety.
(AC Plug on 3“Core cable is taken off in regardless of input
voltages.
)
TO connect the AC plug to the AC power cord, connect the respective
pins of the AC plug to the respective core-wires (LIVE, NEUTRAL, and
GND) of the AC power cord by referring to the color codes shown in
Fig. 1.
Before using the instrument, it is requested to fix asuitable plug for the
voltage used.

TABLE OF CONTENTS
SECTION 1. GENERAL
1-1. Description
1-
2. Specifications
*Mechanical Outline Drawing
SECTION 2. OPERATION
2-
1. Precautions Before U.se
2-2. Description of Panel Items
2-3. Operating Procedures
2-4. Modification of FINE Setting Potentiometer
2-5 .Rack Mount
1
1
3
8
13
13
21
26
31
32
SECTION 3.APPLICATIONS 3^
3-1 .ON/OFF-controI of Output .. . .3"3
3-2. Remote Control of Constant-voltage Output 37
1. Control of Output Voltage With External Voltage 37
2. Control of Output Voltage With External Resistance I.41
3. Control of Output Voltage With External Resistance n.. 4i
3-3 Remoto Control, of constant-current Operation 47
1. Control of Output Current With External Voltage 47
2. Control of Output Current With External Resistance I.5C
3. Control of Output Current With External Resistance II 53
A

PAGE
3-4. Series or Porallel Operation 56
3-5. One-control Parallel Operation 58
3-6. One-control Series Operation 6i
3-
7. External Battery Drive of Digital Meter 65
SECTION 4. MAINTENANCE 67
4-
1. Inspection 67
4-2. Adjustment and Meter Calibration 70
*Schematic Diagram

SECTION 1. GENERAL
1-1.Description
The PAB-A Regulated DC Power Supply is an automatic constant-voltage/
constant-current transfer type of power supply with an auto-range
display meter (3-1/2 digits, liquid crystal display).
The output voltage and output current can be displayed by selecting
them with the switch on the front panel. An external voltage also
can be. displayed with the meter as an input terminal for such signal
is provided on the front panel (except the PAB250-0.25A and PAB.350-0.1A
which have no external voltage measuring function).
The control circuit is amonolithic IC ba.sed circuit. It employs a
temperature compe.nsation type of reference diode, metal film resistors
of excellent temperature coefficient, and wire wound potentiometers,
thereby realizing stable output characteristics.
The output switch is an electronic switch which causes no chattering
or otl'ier noise and which can be electronically remote-controlled.
When the output switch is off, the output voltmeter indicates the
value corresponding to the voltage setting knob, facilitating the
voltage, preset operation.
The. FINE VOLTAGE setting control can be changed to that for current
setting control by changing the internal connector .setting. The
PAB110-0.6A, PA132.50~0.25A and PAB350-0.1A have no FINE VOLTAGE setting
control.
The operation mode is clearly identified between the CV mode (constant-
voltage mode) and the CC mode (constant-current mode) with the LEDs on
the front panel.
In order to be usable as asy.stem component of an automation system,
the PAB-A Series Power Supply has on Its rear panel the remote-control
terminals for control of the output voltage or output current with an
external control voltage signal. The full-scale adjustment can be
accomplished from the front panel. The remote /local selector .switch,

which is convenient for adjustment and maintenance of the power supply
when it is used as asystem component of an automation system, is pro-
vided underneath the output terminals (binding post terminals).
In order that the power supply is usable as afixed power supply com-
ponent of an equipment as well as for laboratory use ,guard caps for
fixing or semi-fixing the control potentiometers are supplied. The
power supply is incorporated with apotentiometer burn-out protection
feature
.
Please be sure to thoroughly read this instruction manual before
starting operating the power supply.
2

Soec
i
f
i
c
at
ions
Source
Effect
(Line
Regulation
for
tiO?
Charge
of
Line
Voltage)