Kikusui PAB 18-1A User manual

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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
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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)

»I.: The resolution is theoretical value as calculated using the rusnbers of turns of
windings. In practice, for the sake of allowance, use avalue of 3to 5tines
of the theoretical value.
*•2; Measured with the positive or negative output line grounded.
*3: Tlsie required by the output voltage for recovering to within 0.05^ +10 aV after
output current change from 5SS to iOOX.
*4: Ihe restriction inposed by liquid crystal display (LCD). Mote that high temperature
(40 to 60 deg C(104 to 140 deg F)) and high humidity adversely affect the longevity
of LCD.
*5; fts measured in ambient humidity not higher than 10^ Sil.
*6: hlith the output switch set in the ON state.
As measured after allowing astabilization time of 30 minutes or more in the state
that the output current is fed, at 23 i5 deg C(73,4 i'9 deg F) and 80% RH or less.
*8: External dimensions (Kaxisium diaensions)
Type M
;
Type I
;
106 WX140
(ill WX151
!0& WX140
(in WX151
KX149 0r#a
HX189 0am
HX209 0mm
HX249 0 m#
(4.17 HX5.51
(4.37 WX5.94
(4.17 WX5.51
(4.37 WX5.94
HX5.87 D in.)
HX7.44 Din.))
HX8,23 0in.
)
HX9,80 Din.))
Accessories
Model Input Fuse (Spare)' Others Instruction Manual
PAeiS-lft 1.5 A, SB
PABI8-1.8A 2A, SB
Guard caps (1 set)
Plugs (2)
QND terairal (1)
Seal (l sheet)
Connector (d)
PA81.8-3A 3A, se
PAB32-1.2A 7.A, SB
PA832-2A 1copy
PAR 70-1
A
3A, SS
PAG110-0.6A
PAB250-0.25A Guard caps (1 set),
GStD terminal (l)
Seal (1 sheet) Connector (h)
PAR35G-0.1A 2A, SB
7

BRACKET
b42
FOR
RACK
MOUNT
(RMF-4)
-<f>4.5
/
(D#
411788)

BRACKET
B42
FOR
RACK
MOHHT
(RH
F
-4)
{D#
411788)

TO
DIRECTLY
FIX
THE
POWER
SUPPLY
TO
THE
CHASSIS.

BRACKET
B42
FOR
RACK
MOlfflT
(RMF-4)
^±‘^5
/
(D#
411788)
TO
DIRECTLY
FIX
THE
POWER
SUPPLY
TO
THE
CHASSIS.

BRACKET
B42
FOR
RACK
MOimT
(RMF-4)
-<P4.5
f
(Df/
411788)
1.2
TO
BIRECTLY
FIX
THE
POWER
SUPPLY
TO
THE
CHASSIS.

SECTION 2. OPERATION
Inspection Upon Delivery!
When the instrument is delivered to you, immediately inspect it
for any damage which might have been sustained when in transpor-
tation. If any sign of damage or malfunctioning Is found, imme-
diately notify the transportation company and/or your Kikusui
agent
.
Storage
:
The conditions for storing the instrument is ambient temperature
-10°C to 60“C (1A°F to 140°F) and humidity not higher than 70% RH
These conditions are needed to protect the liquid crystal display
Note that the longevity of the liquid crystal display will be
badly shortened if the Instrument is stored in high temperature
and high humidity.
2-1. Precautions Before Use
*NOTE: BE SURE TO NOTE THE FOLLOWING ITEMS BEFORE STARTING
OPERATING THE INSTRUMENT.
(1) Input power
oThe input power requirements of the in.struroent are 108 -132 V,
48 -62 Hz single-phase AC. Be sure to operate the instrument
with an input power within these ranges.
(2) Inrush current
oWhen the power switch is turned on, the instrument may draw an
inrush current of 20 -30 Apeak, with ahalf-amplitude period
of approximately 5msec. The cause of the inrush current is
magnetic saturation of the power transformer. Theoretically, if
the power switch is turned on with such timing that the phase
angle with respect to the AC line voltage waveform is zero (zero
crossing), the transformer core is saturated and its impedance
becomes close to that of an air-core coil and alarge inrush
13 -

current flows. If the power switch is turned on with atiming
of 90~degree of phase angle, no transiential current (inrush
current) flows. Other factors which affect the inrush current
are the polarity of the remaining magnetic flux of the core,
line Impedance, and line voltage.
oPay attention to the inrush current especially when alarger
number of instruments are turned on at the same time.
oFor the input power fuse, use an SB (slow blow) or atime lag
type of fuse.
(3) Terminal block
oCheck that the jumper of the rear terminal block is correctly
set. When in the standard operation, the jumper .should be
connected between terminals and .
1
(D i
!
j
(4) Binding post terminals
oFor the GND terminal, ascrew-type terminal is used for convenience
of wire connection. It has aterminal post for output wire connec-
tion with apair-plug.
oNormally, connect the negative or positive output terminal to the
GND terminal u.sing the shorting bar.
(5) Digital display
oThe least-significant one or two digits of the dl.splay may flicker.
The cause of this is not the ripple noise of the output .It is
due to the performance of the A/D converter.
oWlien large common-mode noi.se is superimposed on the AC line voltage
or when there is apowerful noise source near the instrument, the
digital display may be driven with an external battery power source
(1.5 V^2) to stabilize the indication. (See Section 3-7.)
(D @(D ®
i^