KEISOKU GIKEN Co., Ltd.

High-Capacity Programmable AC Power Source

QA series■ Lineup of single-phase maximum 30kVA (3 models) and three-phasemaximum 90kVA (4 models)■ Supports output voltage of 310V as standard.

Optional output voltage 350V and 600V extensions available■ Easy and simple operation with an easy-to-understand direct keys

■ Prepared for instantaneous overload (optional). It can supply up to
3 times the current and capacity with a 1 second rating■ Leveler Adjuster is standard equipment. Anchor bolt fixing bracket
for earthquake resistance is also available as an option■ Optional reverse current protection function for protection during
motor testingUpgrade

Inheriting the basic concept,
equipped with various new functions

Comparison with conventional products
The "QA Series" has been upgraded while covering the specifications and performance of the "6300/6500 Series".

Inherited the basic concept
Large capacity programmable
AC Power Source
Three-phase switched-mode

It covers a large capacity of up to 90 kVA from 15
kVA, and its integrated design makes it compact
Top-class space-saving AC Power Source and lightweight. PLC, DI/DO and RS-232C/USB/LAN
interfaces are standardized, and by installing an
optional GPIB/RS-232C converter and external
analog input control (0 to 10Vdc), automatic control
by PC base or PLC is possible. The standard output• High efficiency with a power factor of 0.95. Size of input
voltage is 310V (line to line voltage 537V), and it issystem breakers can be reduced
possible to reproduce power source environments• Space-saving with built-in power factor correction circuit
around the world. Also, by using the output voltage(PFC)
350V (line-to-line 606V) extension option, voltage• Lineup of 4 models: 15kVA, 30kVA, 60kVA and 90kVA
variations test ( ±20%) is possible.

QA-T4 series

400Hz Output DedicatedAircraft Ground Power Source

QA-T4-4 series• Input wiring method and voltage can be changed according
to the grid voltage of airports and bases (factory option)• Specialization in simple functions, realizing space-saving
and low cost
• Lineup of 4 models: 15kVA, 30kVA, 60kVA and 90kVA

single phase switched-mode
Highly Efficient AC Power
Source with PFC

QA-S2 series• High efficiency with a power factor of 0.95. It is possible toreduce the size of the breaker of the input system• Space-saving with built-in power factor correction circuit(PFC)• Lineup of 3 models: 10kVA, 20kVA and 30kVA
2

Timed current limitation of motor starting current
as standard. In addition, it is optionally available
with 3 times instantaneous overload output,
enabling testing for all types of rotating(motor)
equipment.

It covers large capacities of up to 30 kVA, and its
integrated design makes it compact andlightweight. PLC, DI/DO and RS-232C/USB/LAN
interfaces are standardized, and by installing an
optional GPIB/RS-232C converter and external
analog input control (0 to 10Vdc), automatic control
by PC base or PLC is possible. A 350V output
voltage extension option and a 600V output voltage
extension option are also available, enabling
various tests. Timed current limitation of motor
starting current as standard. In addition, it is
optionally available with 3 times instantaneous
overload output, enabling testing for all types ofrotating(motor) equipment.

■ 6300・6500 series

4 large LCDs

■ QA series

Front display

4 large LCDs
Function key,
Emergency stop button,
Digit shift key
UP/Down key,
Illuminated output switch,
Pilot lamp
Phase voltage and line voltage
setting possible
Phase and line voltage
measurement can be speciﬁed

Function key
UP/Down key
output key

Manual operation

Phase voltage
setting only
Phase and line voltage
measurement can be speciﬁed

Setting voltage
Measurement voltage

15kVA：600x839x980
30kVA：600x949x988

Dimensions

15kVA：600x949x986
30kVA：600x949x986

547kg(30kVA)

Net weight

550kg(30kVA)

Low range : 150V
High range：300V

Output voltage(phase voltage)Low range: 155V
High range：310V

Low range : 84A
High range：42A

Output current(30KVA model)

Low range : 100AHigh range：50A≦3

CF(crest factor)≦445Hz～70Hz

Output frequency

40Hz～70Hz

Less than 2msec

Response timeLess than 2msec

1% or lessTotal harmonic distortion

1% or less

OptionRemote sense function

Standard equipment

OptionLevel adjuster

Not supported

Support for USB memory

Not supported
Not supported

Failure diagnosis
function
Integration timemeasurement

Overcurrent foldback function

Overcurrent support

Input: ON/OFF Memory
P1, P2, P3 selection

PLC control

Standard equipment
Data can be saved to
USB memory
Failure details are indicatedby code number
Display total operating
hours (minutes)
Timed current limit function
Instantaneous overload
support (optional)
Input: ON/OFF Memory
P1, P2, P3 selection

Output : Processing

DI/DO control

Input: Emergency stop, Interlock
Output: Fail (Failure alarm), Processing,
STANDBY, Emergency stop alarm+12V,Trig output (pulse)Standard: USB/RS-232C
Option: GP-IB

Communication Interface

Standard: USB/RS-232C/LAN
Option: GP-IB
3

Evolution ― Housing/User Interface
2
1

Inheriting the basic concept,
equipped with various new functions

通電確認に便利な系統受電ランプ

Screw holes for fixing signal tower asstandard

The rear panel DI/DO and SL08 series (manufactured
by PATLITE Ⓡ ) can be easily connected.

5

1
2

3

6

Easy operation with direct key

Only recall of fixed functions (system key programmable keys are excluded).
Intuitive operation is possible

6

Pilot lamp convenient for checking

2 energizationB

stop button and interlock
3 Emergency
function as standard equipment forenhanced safety
the event of a DUT failure. By using the interlock function with the4contact signal of door open/close of jig equipment, etc., it can be

C

B

A

4 values (frequency, voltage, current, and power
factor or power) can be measured simultaneously,
just like a power meter. The large, highly visible
green LED is used for ease of viewing.

B

A digit change key has been added in addition to
the Up/Down keys for setting values. The newmodel is easier to set.

used as an emergency stop function linked with door open/close.
(Open: enabled Short: disabled)

Front panel

B

D

DI/DO

13

In addition to the conventional voltage
measurement function for each PHASE and LINE, a
new LINE/PHASE switching function has been
added so that the voltage can be set for eachphase voltage and line voltage. Any voltage can be
set directly.

D

Adopts an illuminated output switch so you canE

By connecting a USB memory to the dedicated

INTER LOCK

Digit change (left)

Front intake and rear exhaust eliminates
need for space on the left and4 theright sides

A fixing bolt that can be attached to the top of the
housing (eye bolt type: cannot be lifted) is available asan option (model name: AO-16). It can be used as asimple Earthquake-resistant.

4

Digit change (right)

USB port, program settings can be saved andrecalled on the USB memory. Firmware updates

The intake from the side, which was used in theprevious model, has been eliminated, and even withlarge capacity, the structure has been unified to havefront intake and rear exhaust. Products can now be
installed without gaps on either side.

Earthquake-resistant housing fixing

see the output status at a glance.

Up keyD-sub 25pin Male connector

5 bolts can be attached (optional)

E

C

Real panel

2Power factor/power measurement

A

A pilot lamp that indicates when power is received
from the grid at a glance is standard equipment.

The emergency stop button immediately shuts off the output inCurrent measurement
Current limit setting

Frequency measurement Voltage measurement/setting/setting

Down key

7
8

can also be performed using this port.

Failure diagnosis function as standard equipment

Cumulative operating hours function is standard

Failure details can be displayed as code numbers andmanaged in the history. The history results enable theuser to identify the cause of the malfunction, which inturn allows for quicker repair and after-sales service.

The total operating time during operation can bedisplayed (in minutes). By knowing the actual
operating hours, thorough and prompt after-sales
service is possible.

7 Supports installation of earthquake-8 Level adjuster as standard equipment

It is possible to take earthquake-resistant measures byusing the special screw holes prepared in advance at
the four corners (front and rear) of the housing andusing the optional (model name: AO-17) anchor bolt
fixing bracket.

A level adjuster, which was an option in conventional
products, is standard equipment. Brackets for fixing
level adjusters are also available as an option forsimple earthquake resistance measures.

resistant anchor bolt fixtures (optional)

5Evolution― Mode/Function/Interface

Inheriting the basic concept,
equipped with various new functions

Voltage soft-start function
as standard equipment

Extensive interfaces

Voltage remote sense as standard

Equipped with a soft start

LAN/USB/RS -232C are standard. GPIB/RS -232C
converter is also available as an option.

Voltage drop when a large current is applied iscompensated for, enabling more accurate voltage
setting at the sense point. It is effective when the
distance between the AC power source unit and theload is far apart.

time setting when the
output is turned on, it isSet
voltagepossible to increase theUSB for power source for
GPIB/RS-232C converter

voltage without starting
current during motor
starting operation.

OutputON

Set timeload cable

Capable of reproducing supply
voltages from around the world
By expanding the PHASE voltage to 350V, this option
can output up to 606V in LINE voltage. This allows
simulation of power source voltages of 480V ± 20%(384V~576V) without the use of a separatetransformer, making it possible to reproduce powersource voltages from all over the world, including
voltage variations tests.

GPIB/RS-232C Converter(Model name: QO-C-01)

Equipped with PLC input and DI/DO suitable for PLC control. External
analog input control available as an option
In addition to PC-based communication control, 0 to
10Vdc external analog control is supported as an
option. Voltage and frequency can be controlled froma PLC (programmable logic controller) using standard
PLC inputs and DI/DO.

PLC Input

PLC

DI/DO

Purpose

ON/OFF

Output ON/OFF
P1.P2.P3 Memory
selection

P1,P2.P3

Processing
STANBYEMERGENCY+12V
Trig output

Emergency stop execution
Interlock function
Alarm output in case ofabnormality
Status output during test
Status output during test
standbyEmergency stop alarm
output+12 V（Maximum 250mA）
Trigger output

External analog input control

Current limit measurement①

V CONT
F CONT
6

Name

Purpose

Output voltage
control
Output frequency
control

External CV control
0~10Vdc
External CF control
0~10Vdc①②②Voltage
waveform

External analog input
control(Option)

By repeating steps 1 to 3, you can drive the motor.

Instantaneous overload support(optional)

Analog Control Movement
Analog input

analog control signal

0V
VoltagOutputFrequency

10V

It can supply an instantaneous overload of 3 times the
rated capacity within 1 second (the voltage drop will
drop to 110% if the time limit exceeds 1 second) . Even
when testing motors and compressors with large
inrush currents and starting currents, it is possible tostart (rotate) without voltage drop.
1000msAs a factory option (for a fee), the input voltage andwiring method can be changed to the following. It is
possible to correspond to the grid input voltage of any
country.
※ Standard is 3-phase 3-wire 200V unlessspecified.
3-phase 3-wireline voltage

3-phase, 4-wire Phase
voltage / Line voltage

200V、 208V、 220V、 230V
240V、 380V、 400V、 415V

220V/380V、 230V/400V、240V/415V

200V、 208V、 220V、 230V、
240V、 380V、 400V、 415V、
440V、 480V

220V/380V、 230V/400V、240V/415V、 254V/440V、266V/460V、 277V/480V

Resistant to inrush current
Inrush current can be supplied from 3 times that ofconventional models to 4 times that of specifications.
It also has a maximum of 4 times the resistance torepeated crest factors.
＜ Rush current: 4 times maximum current ＞
Inrush Current＜ Crest factor: up to 4 times ＞

4

3

③

Current
waveform③～～

External
AI

Motors, compressors, etc. temporarily draw a large
starting current. If this starting current activates theprotection circuit of the AC power source, testing will
not be possible.
The timed current limit function was developed to
avoid this problem, so it can be used with confidence
when testing motors, compressors, etc.

I

Name

Emergency
stopInterLock
Fail

Timed current limit function
is standard

V

DI/DO

PLC input and DI/DO
External
I/O

Load

sense cable

Changeable to input voltage / input
wiring Method (factory option)

Instantaneous current(3 times rating)

Optimal reverse current protection
for protection during electric motor
testing (optional)
A reverse current protection function is available as an
option. When input current (reverse current) is
detected from the output end of the AC power source,
an alarm is displayed, and the output is immediately
turned off to protect the AC power source itself. The
main unit is protected from reverse currents such as
reverse currents generated when motors,
compressors, and other electric motors stop, and frominstantaneous reverse currents generated by the PCS
when combined in parallel with a resistive load as a
power source simulating the grid, ensuring safe use of
the unit.

Reverse current generation

Current waveform

Waveform at instantaneous current

Motors and compressors

QA series

7

Specifications
QA-T4 series (Three-phase output)

S-2572-1.1

Model

QA-T4-4series(Three-phase output 400 Hz only）

S-2572-1.1

QA-15K-T4 (3-phase 15 kVA) QA-30K-T4 (3-phase 30 kVA) QA-60K-T4 (3-phase 60 kVA) QA-90K-T4 (3-phase 90 kVA)
AC output (AC effective value)
Number of phases/Lines
3 phase 4 wire
Rated voltage
155 V / 310 V
Rated value
Rated current
50 A / 25 A
100 A / 50 A
200 A / 100 A
300 A / 150 A
Rated power
15 kVA
30 kVA
60 kVA
90 kVA
Output PHASE voltage setting range
0 ～ 155 V / 0 ～ 310 V / Auto range
Output LINE voltage setting range
0 ～ 269 V / 0 ～ 537 V / Auto range
Setting resolution
0.1 V
Setting accuracy *1 *2
10 V or more: ± (1 % of setting + 2 counts)、 less than 10 V : ± (1 % of setting + 4 counts)
AC voltage(r.m.s)Line regulation± 0.1 V
Load regulation
Phase voltage (L - N) ： ± (0.5% of Setting + 0.5 V)、 Line voltage (L -L) ： ± (1 % of Setting + 1 V) （Resistive load）
DC offset voltage± 20 mV （typ）
Response time
2 msec （10 ～ 90 %, typ）
0 〜 155 V
50 A @ 100 V
100 A @ 100 V
200 A @ 100 V
300 A @ 100 V
AC maximum current(r.m.s) single phase0 〜 310 V
25 A @ 200 V
50 A @ 200 V
100 A @ 200 V
150 A @ 200 V
Range of values
40 Hz ～ 70 Hz
Frequency
Setting resolution
0.1 HzSetting accuracy± (0.02 % of Setting)
THD (Total Harmonic Distortion)
1 % or less （40 Hz ～ 70 Hz、 Resistive load）
Crest factor≦4
Load power factor
0 ～ 1 （Enter phase or retarded phase、 40 Hz ～ 70 Hz、 External power injection and regenerative operation are not possible）
Range L
Guaranteed up to 10 V
Remote sense
Range H
Guaranteed up to 20 V
Measuring function (RMS value or AC)
Phase voltage measurement range
0 〜 155.0 V / 0 ～ 310.0 V
Line voltage measurement range
0 〜 269.0 V / 0 ～ 537.0 V
AC voltage(r.m.s)Measurement resolution
0.1 V
Measurement Accuracy *3± (1 % of Reading + 2 counts)
L
0.00 ～ 35.00 A
Measuringrange
H
30.0 ～ 350.0 A
AC current
L
0.01 A
Measurement(r.m.s)resolution
H
0.1 A
L
± (1 % of Reading + 5 count)
Measurement*4
AccuracyH± (1 % of Reading + 1 count)
Measuring range
40 Hz ～ 70 Hz
Frequency
Resolution
0.1 HzDegree of accuracy± 0.1 HzL
0.000 ～ 3.500 kW
Measuringrange
H
3.00 ～ 40.00 kW
L
0.001 kWAC Effective
Measurement
Power
resolution
H
0.01 kWL± (1.5 % of Reading + 5 count)
Measurement
Accuracy *5H± (1.5 % of Reading + 1 count)
Measuring range
0 ～ 1.000 （Calculation Formula ： W/V × A）
Power factor
Measurement resolution
0.001
General Specifications
Input phase / wire
Three-phase 3-wire
Input Voltage / Frequency
AC 200 V ± 10 % / 47 ～ 63 Hz
Input powersourcePower factor (at max. load)
0.90 or more
Efficiency (at maximum load)
80 % or more (At full load )Input power
With PFC at max load
20.8 kVA
41.7 kVA
83.3 kVA
125 kVA
Three-phase 3-wire AC 180 V
Input current
66.8 A
133.6 A
267 A
401 A
at maximum load
Input form
Terminal block
Net weight
Main body only
380 kg
550 kg950 kg1500 kg
Dimensions (WxHxD)
Including casters
600 × 949 × 986 [mm]1000 × 1662 × 986 [mm]1200 × 1805 × 986 [mm]Fixing method
Fixed with Level adjuster
Movement method
Self-propelled on casters
Operating environment
Indoor use
Operating temperature
0 ℃～ + 40 ℃
Operating humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Environmental
condition
Storage temperature-20 ℃～ + 60 ℃
Storage Humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Altitude2000 m or less above sea level
Cooling method
Forced air cooling by fan
Between input and output
Withstand voltage
AC 1500 V、 1 minuteBetween input and FG
Insulation resistance Between input and FG
DC 500 V、 30 M Ω or more

QA-15K-T4-4(3-phase 15 kVA) QA-30K-T4-4 (3-phase 30 kVA) QA-60K-T4-4(3-phase 60 kVA) QA-90K-T4-4(3-phase 90 kVA)
AC output (AC effective value)
Number of phases/Lines
3 phase 4 wire
Rated voltage
155 V / 310 V
Rated value
Rated current
50 A / 25 A
100 A / 50 A
200 A / 100 A
300 A / 150 A
Rated power
15 kVA
30 kVA
60 kVA
90 kVA
Output PHASE voltage setting range
0 ～ 155 V / 0 ～ 310 V / Auto range
Output LINE voltage setting range
0 ～ 269 V / 0 ～ 537 V / Auto range
Setting resolution
0.1 V
Setting accuracy *1 *2
10 V or more : ± (1 % of setting + 2 counts)、 less than 10 V : ± (1 % of setting + 4 counts)
AC voltage(r.m.s)Line regulation± 0.1 V
Load regulation
Phase voltage (L - N) ： ± (0.5% of Setting + 0.5 V)、 Line voltage (L -L) ： ± (1 % of Setting + 1 V) （Resistive load）
DC offset voltage± 20 mV （typ）
Response time
2 msec （10 ～ 90 %, typ）
0 〜 155 V
50 A @ 100 V
100 A @ 100 V
200 A @ 100 V
300 A @ 100 V
AC maximum current(r.m.s) single phase0 〜 310 V
25 A @ 200 V
50 A @ 200 V
100 A @ 200 V
150 A @ 200 V
Range of values
360 Hz ～ 440 Hz
Frequency
Setting resolution
1 Hz
Setting accuracy± (0.02 % of Setting)
THD (Total Harmonic Distortion )1 % or less （360 Hz ～ 440 Hz、 Resistive load）
Crest factor≦4
Load power factor
0 ～ 1 （Enter phase or retarded phase、 360Hz ～ 440 Hz、 External power injection and regenerative operation are not possible）
Range L
Guaranteed up to 10 V
Remote sense
Range H
Guaranteed up to 20 V
Measuring function (RMS value or AC)
Phase voltage measurement range
0 〜 155.0 V / 0 ～ 310.0 V
Line voltage measurement range
0 〜 269.0 V / 0 ～ 537.0 V
AC voltage(r.m.s)Measurementresolution
0.1 V
Measurement Accuracy*3± (1 % of Reading + 2 counts)
L
0.00 ～ 35.00 A
Measuring range
H
30.0 ～ 350.0 A
L
0.01 AAC current
Measurement resolution(r.m.s)H
0.1 A
L± (1 % of Reading + 5 count)
Measurement Accuracy *4
H± (1 % of Reading + 1 count)
Measuring range
360 Hz ～ 440 Hz
Frequency
Resolution
0.1 HzDegree of accuracy± 0.1 HzL
0.000 ～ 3.500 kW
Measuringrange
H
3.00 ～ 40.00 kW
L
0.001 kWAC Effective
Measurement
Power
resolution
H
0.01 kWL± (1.5 % of Reading + 5 count)
Measurement
Accuracy *5H± (1.5 % of Reading + 1 count)
Measuring range
0 ～ 1.000 （Calculation Formula W/V × A)
Power factor
Measurement resolution
0.001
General Specifications
Input phase / wire
Three-phase 3-wire
Input Voltage / Frequency
AC 200 V ± 10 % / 47 ～ 63 Hz
Input powersourcePower factor (at maximum load)
0.90 or more
Efficiency (at maximum load)
80 % or more (At full load)
Input power
With PFC at max load
20.8 kVA
41.7 kVA
83.3 kVA
125 kVA
Three-phase 3-wire AC 180V
Input current
66.8 A
133.6 A
267 A
401 A
at maximum load
Input form
Terminal block
Net weight
Main body only
380 kg
550 kg950 kg1500 kg
Dimensions (WxHxD)
Including casters
600 × 949 × 986 [mm]1000 × 1662 × 986 [mm]1200 × 1805 × 986 [mm]Fixing method
Fixed with Level adjuster
Movement method
Self-propelled on casters
Operating environment
Indoor use
Operating temperature
0 ℃～ + 40 ℃
Operating humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Environmental
condition
Storage temperature-20 ℃～ + 60 ℃
Storage Humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Altitude2000 m or less m above sea level
Cooling method
Forced air cooling by fan
Between input and output
Withstand voltage
AC 1500 V、 1 minuteBetween input and FG
Insulation resistance Between input and FG
DC 500 V、 30 M Ω or more

*1: Accuracy is not guaranteed when the output voltage is 5 V or less. *2: When the output voltage is more than 5 V and less than 30 V, "Volt Adj"=ON satisfies
this specification. *3: Accuracy is not guaranteed when the output voltage is 5 V or less (10 V or less for the 600 V option). *4: When 0 to 310V is used, the accuracy
specification is met when the output voltage exceeds 5V (10V for 0 to 600V option). *5: When output voltage is 5V or less, specification accuracy is met.

*1: Accuracy is not guaranteed when the output voltage is 5 V or less. *2: When the output voltage is more than 5 V and less than 30 V, "Volt Adj"=ON satisfies thisspecification.*3: Accuracy is not guaranteed when the output voltage is 5 V or less (10 V or less for the 600 V option). *4: When 0 to 310V is used, the accuracy specificationis met when the output voltage exceeds 5V (10V for 0 to 600V option). *5: When output voltage is 5V or less, specification accuracy is met.

8

Model

9

Specifications
QA-S2 series(single-phase output)

S-2572-1.1

Model

QA-10K-S2 (single phase 10 kVA) QA-20K-S2 (single phase 20 kVA) QA-30K-S2 (single phase 30 kVA)
AC output (AC effective value)
Number of phases/Lines
Single-phase 2-wire
Rated voltage
155 V / 310 V
Rated value
Rated current
100 A / 50 A
200 A / 100 A
300 A / 150 A
Rated power
10 kVA
20 kVA
30 kVA
Output PHASE voltage setting range
0 ～ 155 V / 0 ～ 310 V / Auto range
Setting resolution
0.1 V
Setting accuracy *1 *2± (1 % of setting + 2 counts)
AC voltage
Line regulation± 0.1 V(r.m.s)Load regulation± (0.5 % of Setting + 0.5 V) (Resistive load )DC offset voltage± 20 mV （typ）
Response time
2 msec （10 ～ 90 %, typ）
0 〜 155 V
100 A @ 100 V
200 A @ 100 V
300 A @ 100 V
AC maximum current(r.m.s) single phase0 〜 310 V
50 A @ 200 V
100 A @ 200 V
150 A @ 200 V
Range of values
40 Hz ～ 70 Hz
Frequency
Setting resolution
0.1 HzSetting accuracy± (0.02 % of Setting)
THD (Total Harmonic Distortion )1 % or less （40 Hz ～ 70 Hz、 Resistive load）
Crest factor≦4
Load power factor
0 ～ 1 （Enter phase or retarded phase、 40 Hz ～ 70 Hz、 External power injection and regenerative operation are not possible）
Range L
Guaranteed up to 10 V
Remote sense
Range H
Guaranteed up to 20 V
Measuring function (RMS value or AC)
Phase voltage measurement range
0 〜 155.0 V / 0 ～ 310.0 V
Line voltage measurement range
0 〜 269.0 V / 0 ～ 537.0 V
AC voltage(r.m.s)Measurement resolution
0.1 V
Measurement Accuracy *3± (1 % of Reading + 2 counts)
L
0.00 ～ 35.00 A
Measuringrange
H
30.0 ～ 350.0 A
L
0.01 A
Measurement
AC current
resolution(r.m.s)H
0.1 A
L± (1 % of Reading + 5 count)
Measurement
Accuracy *4
H± (1 % of Reading + 1 count)Range of values
40 Hz ～ 70 Hz
Frequency
Resolution
0.1 HzDegree of accuracy± 0.1 HzL
0.000 ～ 3.500 kW
Measuringrange
H
3.00 ～ 40.00 kW
L
0.001 kW
Measurement
AC Effective Power
resolution
H
0.01 kWL± (1 % of Reading + 5 count)
Measurement
Accuracy *5
H± (1 % of Reading + 1 count)
Measuring range
0 ～ 1.000 （Calculation Formula ： W/V × A）
Power factor
Measurement resolution
0.001
General Specifications
Input phase / wire
Three-phase 3-wire
Input Voltage / Frequency
AC 200 V ± 10 % / 47 ～ 63 Hz
Input power source
Power factor (at max. load)
0.90 or more
Efficiency (at maximum load)
80 % or more (At full load )Input power
With PFC at max load
13.9 kVA
27.8 kVA
41.7 kVA
Three-phase 3-wire AC 180 V
Input current
44.5 A
89.1 A
133.6 Aat maximum load
Input form
Terminal block
Net weight
Main body only
346 kg536 kgDimensions (WxHxD)
Including casters
430 × 839 × 736[mm]600 × 1085 × 986[mm]Fixing method
Fixed with level adjuster
Movement method
Self-propelled on casters
Operating environment
Indoor use
Operating temperature
0 ℃～ + 40 ℃
Operating humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Environmental
condition
Storage temperature-20 ℃～ + 60 ℃
Storage Humidity
20 % Rh ～ 85 % Rh （No dew condensation）
Altitude2000 m or less m above sea level
Cooling method
Forced air cooling by fan
Between input and output
Withstand voltage
AC 1500 V、 1 minuteBetween input and FG
Insulation resistance Between input and FG
DC 500 V、 30 M Ω or more
*1: Accuracy is not guaranteed when the output voltage is 5 V or less. *2: When the output voltage is more than 5 V and less than 30 V, "Volt Adj"=ON satisfies
this specification. *3: Accuracy is not guaranteed when the output voltage is 5 V or less (10 V or less for the 600 V option). *4: When 0 to 310V is used, the accuracy
specification is met when the output voltage exceeds 5V (10V for 0 to 600V option). *5: When output voltage is 5V or less, specification accuracy is met.

10

Common to all models

S-2572-1.1

Protective function
Overvoltage protection (OVP)The output voltage value has exceeded the set voltage of +5V
Overcurrent protection (OCP)
Output current has exceeded +10% of rated maximum current
Over Power Protection (OPP)
Output power has exceeded 10% of rated power
Over-Temperature Protection (OTP)
The heat sink for heat dissipation of the main unit or the transformer has exceeded the set temperature.
Short-circuit protection
Output short circuit has detected
Low voltage protection
When the remote sensing function is ON, the measured voltage value is lower than the set value.
AC input overvoltage protection (Vin OVP)
Input voltage has exceeded +20% of rating
AC input undervoltage protection (Vin UVP)
Input voltage has exceeded -20% of rating
AC input voltage imbalance protection
Unbalanced phase voltage ( ± 20 V) of the three input phases has been detected.
Current
The output current has exceeded the set limit value.
Limit function
Power
Output power has exceeded set limit
Other features
Timed current limit function
A function that reduces the output voltage to maintain a constant current when the output current is about to exceed the limit value.
Range
1 ～ 9999 （0= continuous）
Timer time setting
Unit
Selectable from seconds, minutes, and hours
Setting range
0.1 ～ 999.9 s
Soft start function
Setting resolution
0.1 s
10 file、 20 steps per file
Memory（Voltage, Frequency, Test Time, Judgment Delay Time, Current, Power, Upper Limit / Lower limit setting can be memorized）
Auto loop cycle
0= continuous、 OFF=one time、 2 ～ 9999 （Select magnification x 1, x 10, or x 100.）
Calibration Function
Calibration possible from the front panel
Failure diagnosis function
Displays various failure details by code number
Cumulative operating hours
Total operating hours (unit: minutes)
Pilot lamp
White lamp on front panel lights up when system input (breaker ON)
Emergency stop button
Execute an emergency stop with the emergency stop button on the front panel
Output ON/OFF button (light-emitting type)
Equipped on front panel (Lights up when output is ON)
Control button
Equipped on front panel
Display panel
7SEG LEDs on front panel
Operation display
OUTPUT ON/OFF
When output is on
OUTPUT LED lights up
When protective function is activated
PROTECT LED lights up
Alarm Action
In case of operation
FAIL LED lights up(Startup error、 OVP、 OCP、 SHORT、 OPP、 Temperature anomaly、 Fuse blown, IGBT
abnormality
failure, input power overload voltage / low voltage / instantaneous breakdown detection, etc.)
Key lock operation
Key-locked state
LOCK LED lights up
Remote operation
During remote control
REMOTE LED lights up
At Low range
0 ～ 155 V LED lights up
Output voltage range
At High range
0 ～ 310 V LED lights up
when line voltage is displayed
LINE LED
Voltage value display
When phase voltage is displayed
PHASE LED
Output power capacity display
P LED
Power factor display
PF LED
Test time display
T LED
Program memory status display
P-S LED
External Control
Output ON/OFF
Controls AC voltage output ON/OFF
PLC remote control
Input signal(D-Sub 9 pin connector)
Memory read
Reads one of the program memories P1, P2, or P3
Emergency stop
Execute emergency stop
Input signal
INTERLOCKDisables the main unit panel control
FAIL
Operation error alarm
PROCESSING
Alarm during program test
Output signal
DI/DO control
STANDBY
Program test standby alarm(25-pin D-Sub connector)
EMERGENCY
Emergency stop alarm
Power supply+ 12 V+12 V (max. 250 mA) supply (service power supply for the signal tower)
Signal Level
Low level （0 V ～ 1.0 V）、 High level （3 V ～ 5 V）
Trigger output
FunctionHigh level when output ON / Low level when output OFF / Pulse output
InterfaceUSB2.0 compliant （Fullspeed）
HardwareUSB （HOST）
Type-A connecto
Function
Perform FW update from USB memory stick
USB2.0 compliant （Fullspeed）
HardwareUSB （DEVICE）
Type-B connector
Function
Execute various programs via USB communication
IEEE 802,3 100Base-Tx/10Base-T Ethernet
LAN
Hardware
RJ-45 connector
TCP/IP IPv4, Keep Alive support
D-SUB 9-pin
RS-232C
HardwareBaud rate : 115200 bps
Data length: 8 bits, Stop bit: 1 bit, Parity bit: None, Flow control: None
OthersRecommended Signal tower
Signal tower
SL08 series manufactured by PATLITE Ⓡ (Equipped with standard screw holes for fixing of the signal tower)

11

Price list
High-Capacity Programmable AC Power Source QA Series
QA-T4 series(Three-phase output)
Circuit method Output voltage Voltage range
QA-15K-T4
QA-30K-T4
QA-60K-T4

SwitchingThree-phase
4-wire(3-wire also
possible)

155V/310V( Phase voltage)
268V/ 537V
( Line voltage )QA-90K-T4
Interface

Frequency

40 ～ 70Hz

Electric current Electric power
50A/25A

15kVA

100A/50A

30kVA

200A/100A

60kVA

300A/150A

90kVA

price

Please contact usStandard ： RS-232C/USB/LAN/PLC/DI/DO

QA-T4-4 series (Three-phase output 400 Hz only)
Model

Circuit method Output voltage Voltage range

QA-15K-T4-4
QA-30K-T4-4
QA-60K-T4-4

Switching

QA-90K-T4-4

155V/310V( Phasevoltage)Three-phase
4-wire(3-wire also
possible)Interface

268V/537V( Line voltage )Frequency

360 ～ 440Hz

Electric current Electric power
50A/25A

15kVA

100A/50A

30kVA

200A/100A

60kVA

300A/150A

90kVA

price

Please contact usStandard ： RS-232C/USB/LAN/PLC/DI/DO

QA-S2 Series (Single-Phase Output)
Model

Circuit method Output voltage Voltage range

QA-10K-S2
QA-20K-S2

Switching

QA-30K-S2

Single-phase2-wireInterface

155V/310V

Frequency
40 ～ 70Hz

Electric current Electric power
100A/50A

10kVA

200A/100A

20kVA

300A/150A

30kVA

price

Please contact usStandard ： RS-232C/USB/LAN/PLC/DI/DO

Common Options
Model

Circuit method

Output voltage

QO-C-01

GPIB/RS-232C converter

Use dedicated GP-IB ⇔ RS-232C conversion box

AO-01

External analog input control

Output voltage/frequency controlled according to input voltage (0-10Vdc)*

AO-02 ～ AO-07

Output voltage 350V extended

Correlation voltage changed to 350V max.*

AO-08 ～ AO-13

Output voltage 600V extended

Correlation voltage changed to 600V max.*

AO-18

Instantaneous overload
support

3 times the rated capacity, 1 sec. or less(Timed, voltage drops to 110% of droop for more than 1 second)
3 times the rated current, 1 sec. or less

Reverse current protection

Function to protect internal circuits when power is regenerated*

AO-14、 AO-15
AO-16

price

Please contact us

Housing fixing bolt for earthquake(Eye bolt) Mounted on top of the enclosure (eyebolt type: cannot be lifted)

AO-17

Anchor bolt fixture

Can be mounted on all four corners of the enclosure

AO-19

Added signal tower

Mounted on top of the enclosure(lights up when output)

AO-20 ～ AO-25

Input voltage / Input wiring method change

Changeable to input voltage / input wiring method**factory option● The information in this catalog is current as of July 2023. ● For purchase, please confirm the latest specifications, price and delivery date. ● Allcompany and product names mentioned herein are trademarks or registered trademarks of their respective companies. ● Specifications and shapes
are subject to change without notice. ● While every effort has been made to ensure that the information provided is accurate, please contact us if you
notice any errors.

KEISOKU GIKEN Co., Ltd.

AgentsPowerElectronics Sales Dept.

Hiyoshi Operation

4-11-1 Minamikase, Saiwai-ku, Kawasaki-shi,
Kanagawa, Japan
TEL +81-44-223-7950 FAX +81-44-223-7960

E-mail : PWsales@hq.keisoku.co.jp / https://www.keisoku.co.jp● CP-0195-2307