• RKT series
  • RKT series

Programmable Wide range DC Power Supplies

"Turbo Function" is installed so that it can output widely in compact size!

  • Max Voltage: 80V to 650V
  • Max Current: 8A to 100A
  • Max Power:
    1600W
  • Great operability

Wide range output is possible with "turbo function" installed.

RKT series is a programmable DC power supply with a turbo function that can output up to five times more voltage/current than a standard DC power supply with the same output power.
You can apply to wide usage with only one unit, but no need to apply power supplies with an extra margin for output voltage and current because each unit can output voltage and current flexibly within the range of 1600 W.

We have honed thoroughly their fundamental performance by the adoption of the power factor correction circuit, which contributes to the reduction of CO2 emission, individual four digits indicator for voltage and current, rotary encoder so that it is possible to set and read speedily and accurately, and so on.
Moreover, they are applicable to the various automatic measurement, and production facilities as LAN, USB, RS-485, and GPIB are selectable as a function for digital communication *.
A conversion adapter or additional option is required separately.

Features

  • It realizes Wide Range Output by installed Turbo Function.
  • Unique low noise power conversion technology for research application
  • Power factor correction and universal input
  • Simplified Simulation of rechargeable batteries, photovoltaic cell and fuel cell variable internal resistance.
  • The sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.
  • Multiple units operation with master/slave and digital interface (option)

Applications

Evaluation of electrics elements for automobile
Covered from 12 V to Higher Volt. by this One Unit.
Evaluation of Communication Equipment
To various Tests for Servers and Rooter.
Evaluation of Power Conditioner
For simulation of Solar cell and Fuel cell.
Evaluation of Power Devise
When you like to impress various voltage.
Evaluation of Inverter
Applied to multiple systems as 100 V or 200 V system with One Unit.

Images of Output Range

Possible to output wide range voltage and current compared with traditional DC power supplies by the turbo function.

RKT650-8(1600W)

RKT650-8(1600W)

Models

Model Maximum Output Ripple (rms)
Voltage Current Power Voltage Current *1
RKT80-100(1600W) 80 V 100 A 1600 W 50 mV 200 mA
RKT330-25(1600W) 330 V 25 A 80 mV 80 mA
RKT650-8(1600W) 650 V 8 A 150 mV 15 mA
At 10% to 100% of rated output voltage and rated output current.

Discontinued Products

Model Maximum Output Ripple (rms)
Voltage Current Power Voltage Current
RKT80-20(400W) 80 V 20 A 400 W 15 mV 10 mA
RKT80-50(800W) 50 A 800 W 20 mV 40 mA
RKT330-13.5(800W) 330 V 13.5 A 800 W 50 mV 45 mA
RKT650-5(800W) 650 V 5 A 800 W 50 mV 5 mA

Functions

Useful New Functions

Two Features in -LDe Option

These are applicable to wide range of usages as various methods of use is possible by adding -LDe option.

(1) Function for Pulse & Ramp Sequence and Master Follow

Output control as Next A to D are possible.

A. Pulse

Sequential operation is possible by using voltage and current set on each memory a, b and c in combination with multi-set function.
Not only continuous operation, but also it is possible to specify the times.
It is best fit to evaluation tests for products as various operations, like as repeat of a and b only or repeat of b, c and off only, are enabled by setting time of memory a, b, c and off to 0.0.

Pulse Sequence

ta,tb,tc and toff can be set to 0.0s、1.0s to 99.9h, respectively.

B. Ramp

It enables to make ramp action up to set voltage or current (or from the set voltage or current to 0V or 0 A). It is useful to like to rise (reduce) voltage or current slowly.

* For ramp action, it is possible to select "both of set voltage and current", "only set voltage" or "only set current".

Ramp

t1 and t2 can be to 0 to 999.9 s, respectively.

C. Pulse + Ramp

It is also possible to use pulse combined with ramp action. If multi-set function is combined with the too, it is able to make pulse action by using voltage or current set on memory a, b and c. Not only continuous operation, but also it is possible to specify the times. It is useful in various aspects as it is possible to rise (reduce) voltage or current slowly up to 3 set value.

Pulse Sequence + Ramp

Range of 0 to 999s for t1 to t4 and range of 0.0 s to 999.9 s for ta to tc and toff can be set respectively.

D. Master Follow

Pulse sequence actions at master-slave and output signal to slave units at ramp action are transmitted. By this function, it is possible to make slave units to output on different output condition from the master unit.

* The master follow function is only available with the standard interface.

Master Follow

Note: Accuracy of the timer at sequence action ±0.5%. Please take care usage at long running.

(2) Sweep Control Programming

Easy programming of sweep operation!

With -LDe option, the available sweep commands are adapted by setting the arrival time and arrival conditions (voltage/current). Since there is no need to set commands that are repeated step by step, it is easier to create new programs and change conditions, saving a great deal of operation time. It also contributes to securing time for development, research, etc.

For details, download the datasheet below.

[Operation image] Sweep Control Programming | Rack Mount DC Power Supplies|RKT series|Matsusada Precision

Principal Functions

Sink Current Suppression

When supplying power to loads with capacities like batteries and capacitors, the sink current suppression is used to reduce the reverse current flowing from the load to the unit in order to prevent a voltage drop on the load as the output is OFF or the set voltage is lowered.

Note: Reverse current cannot be controlled and stabilized. Connect a dummy resistor or reverse current prevention diode when load of the reverse voltage is equal to or higher than the rated voltage. (inductive loads, regenerative motors, etc.)

Prevention of reverse current

Multi Setting Function

Memorize three voltage and current settings in addition to the standard preset values. There is no need to adjust the output when different setting, and convenient function for production inspection process or testing which require frequent data taking.

Setting is three times.

Two Mode Lock Function

Two modes can be selected; "Full Lock" which locks all front panel operations, "Standard Lock" which locks all operation except for OUTPUT ON/OFF. "Full Lock" mode shall be good in case mis-operation have to be completely avoided, and "Normal Lock" mode shall be good in case to avoid mis-operation but secure the way for emergency stop of power supply. You can select the best mode according to your level of "Security".

(In both modes, emergency stop is possible with Power Switch.)

Delayed Trigger Function

In case -LUs1, -LEt or -LGob option is selected, only one unit of RKT series can be used.

Function to delay the OUTPUT ON/OFF time. It is possible to use in case a single unit of RKT series is used, and also when connecting several Matsusada power supplies (*1) using master-slave connection terminal (*2) and output voltage/output current are set individually, delay trigger function can be used. (*3)

Delayed Trigger Function

* t1 to T8 can be set in the range 0.0 to 99.9 s.

  1. R4K-36 series, R4K-80 series, RK-80 series, RK series, TB series and REK series. Detail catalog for each model is available. Please contact nearby sales office.
  2. Can be connected up to 16pieces.
  3. Only for slave-local. In case of slave remote control, exact same model of power supply need to be used. Also, in case of slave-local, each output voltage and current can be set individually. In case of slave-remote, output voltage and current can be set with one-control function which each slave unit follows the master unit setting.

Dual Tracking, Multiple Outputs

Dual tracking control which enables both positive and negative outputs simultaneously in master/slave operation is possible. Multi outputs and various versatile operations are also possible by combining above dual tracking control and slave local mode.

Positive and negative output (+V, -V) of dual tracking control and set output voltage of slave local mode can be output simultaneously by turning on the master unit.

* As for connection, please refer to "examples for operation".

Dual Tracking

Dual Tracking and Multi-Output

Multi Output

Dual Tracking and Multi-Output

Standard Functions

Remote Switch ON/OFF

Output is made ON/OFF with an external relay or open collector.

  • Sink current 1 mA
  • Logic of OUTPUT can be made reversed.
Remote Switch ON/OFF

Function of Variable Internal Resistance

It is possible to simulate simply second battery, solar battery or fuel battery by making voltage depression from current loaded by setting internal resistance to 0.00 to 32.00 Ω in CV (Constant Voltage) mode operation.

Digital interface

Enable digit control via LAN/USB/RS-232C/RS-485/GPIB as well as one control with Master/Slave. When noisy environment is presumed, the following -LGob option (optical interface) is required.
Master/slave Master/slave |Benchtop DC Power Supply | Matsusada Precision It has to hook with each same model in the same series in master-slave.
(at Slave Remote at Delayed Trigger.see page 4 ”Delayed Trigger Function”)

Adapters (separately sold)

To use the digital interface, you need to prepare an digital interface adapter separately.
The following interface adapters are available according to the communication method of your controller port.

Adapter for LAN: CO-E32m
Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
Adapter for LAN: CO-E32m |Benchtop DC Power Supply | Matsusada Precision

Adapter for USB: CO-U32m
Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
Adapter for USB: CO-U32m |Benchtop DC Power Supply | Matsusada Precision

Adapter for RS-232C (9 pin): CO-MET2-9
Adapter for RS-232C (25 pin): CO-MET2-25
Adapter for RS-485 (25 pin): CO-MET4-25
[Dsub⇔Modular jack] Total 16 units can be connected.
Adapter for RS-232C: CO-MET2-9< |Benchtop DC Power Supply | Matsusada Precision

Adapter for GPIB: CO-G32m
Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
Adapter for GPIB: CO-G32m |Benchtop DC Power Supply | Matsusada Precision

(A) CO-M cable
A two-meter cable is provided in each unit without interface option. If you need a longer cable, please consult with our sales staff.

Remote Control

Switching Remote/Local
Switching Remote / Local

Each mode for Voltage, Current,OVP, OVP can be switched with relay or TTL signal.

Output Monitor
Output Monitor
Output Control
Output Control

* Possible to switch 10 kΩ to 0 kΩ for Fail-Safe

Output Control
Output of Status
Output of Status
  • Output: ON at OUTPUT status
  • FLT: ON at abnormal status
    [ON for the status of OVP, OCP, OTP, reverse sense connection and interlock (LD).]
  • CV CC: ON at CV or CC status

COMMON is floating with the output of Open Collector for each COMMON. With stand voltage 30 Vdc, Sink Current 5 mA

A lot of Digital Control Functions

Control Function
  • Output ON/OFF set
  • Digital Control for 16 units (-LGob models: 32 units)
  • Package Control for Multi-hooked Units
  • Display of Various Status (Error Display/Status of Output/OVP/OCP/OPP/OTP/ACF/Reverse Connection of sense/Door Switch)
Write Function Setting Output Volt./Output Current Percent Mode (100.00%), * Volt./Current mode (Max. Rated Value for Volt./Current)
Setting for OVP/OCP Percent Mode (100.0 %), Volt./Current mode (Max. Protection Value to Overvoltage/Overcurrent)
Read Function Measuring for Output Volt./Output Current Percent mode(100.00%), * voltage current value mode (maximum rated voltage and current value)
Set Values of Output Volt./Output Current Percent Mode (100.0%), * Volt./Current mode (Max. Rated Value for Volt./Current)
Setting of OVP/OCP Percent Mode (100.0 %), Volt./Current mode (Max. Protection Value to Overvoltage/Overcurrent)

* Minimum value for each model is the same with the minimum displayed digit the indicator on the front panel.

Specifications

For details, download the datasheet below.

Options

-LDe

Pulse and Ramp Sequence

Please refer to Function for Pulse & Ramp Sequence and Master Follow.
-LEt

LAN Interface Board*1 *2 *3

Digital control is enabled thru LAN.
Hub needs between computer and RKT if control RKT thru LAN.

-LEt LAN Interface Board
-LGob

Optical Interface Board*1 *2 *3

With optical communication, isolation control is performed. As complete isolation is performed by means of optical fiber, this enables advance prevention of erroneous operation involved with transient phenomenon caused by surges, inductive lightning, external noise, etc.

  • -LGob: Optical interface board + optical cable 2 meters
  • -LGob(Fc5): Optical interface board + optical cable 5 meters
  • -LGob(Fc10): Optical interface board + optical cable 10 meters
  • -LGob(Fc20): Optical interface board + optical cable 20 meters
  • -LGob(Fc40): Optical interface board + optical cable 40 meters

Select the optional optical interface board (-LGob) when using this DC power supply under the following conditions.

  • Noisy environment including factories (Example: Motors or coils are used near power supplies and loads).
  • Using with high voltage floating (more than 250 V)
  • Installation distance of 2 meters or more between the DC power supply and a controller such as a computer, laptop, or Programmable Logic Controller (PLC).

Adapters (separately sold)

An adapter is required separately, when using the Adapter.
The following adapters are available according to the connection method between PC and sequencer.

Adapter for LAN: CO-E32
Total 32 units can be connected to one CO-E32.
LAN cable is not provided.
Adapter for LAN: CO-E32m | DC power supply Benchtop | Matsusada Precision

Adapter for USB: USB-OPT
Total 32 units can be connected to one USB-OPT.
USB cable is not provided.
Adapter for USB: CO-U32m | DC power supply Benchtop | Matsusada Precision

Adapter for RS-232C (9 pin): CO-OPT2-9
Adapter for RS-232C (25 pin): CO-OPT2-25
Adapter for RS-485 (25 pin): CO-OPT4-25
Total 32 units can be connected.
Adapter for RS-232C: CO-MET2-9< | DC power supply Benchtop | Matsusada Precision

Adapter for GPIB: CO-G32
Total 32 units can be connected to one CO-G32.
GPIB cable is not provided.
Adapter for GPIB: CO-G32m | DC power supply Benchtop | Matsusada Precision

(B) Optical fiber cable
As of models with -LGob option, a two-meters cable is provided in each model. If you need a longer cable, please consult us from here.
-LUs1

USB Interface Board*1 *2 *3

Digital control is enabled through USB.
USB hub needs between computer and RKT if control plural RKT.

-LUs1USB Interface Board
-L(Mc0.5), -L(Mc0.15)

Change Communication Cable Length

Length of CO-M cable is to be 0.5 meters and 0.15 meters, respectively. (only either one is selectable.)

  1. These options can not be selected together.
  2. If these options is selected for 1600 W model, standard digital interface and master-slave function are not equipped.
    Please refer to the catalog of digital controller for power supplies "CO-USB series" for the detail of digital interface function.
  3. -L(Mc0.5) or -L(Mc0.15) option cannnot be selected with -LGob, -LUs1 or -LEt option.

How to Order

When ordering, add Option No. in the following order by alphabet, and number to Model No.
Example:
RKT80-110(1600W)-LDeGob(Fc0.5), RKT330-25(1600W)-LDeEt(Mc0.15), RKT650-8(1600W)-LDeUs1

Accessories

AC Input Cable

Sold separetely
CABLE TYPE5
CABLE CABLE 250 V / 25 A 2.5 m

Please consult our sales staff about AC cable.

Dimensions

For details, download the datasheet below.

Download

The account registration is necessary for downloading

In this website, we provide only the latest version of information including instruction manuals as of our products. Therefore, the newest versions of manuals on the website might be not same as the ones of products you purchased in the past.

Please click here if you are not registered yet to our site.

Membership Registration (Free)

Please click here if you are already registered to our site.

Log in

DC Power Supplies

Search for related to DC Power Supplies