PROGRAMMABLE WIDE RANGE DC POWER SUPPLY
Turbo function a wide output range in a compact unit
- Voltage range: 80V to 650V
- Current: 8A to 100A
- 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 various automatic measurements, and production facilities such as LAN, USB, RS-485, and GPIB are selectable as a function for digital communication.
* A conversion adapter or additional option is required separately.
APPLICATIONS
-
Evaluation of electrics elements for automobile
covered from 12 V to higher voltage by this one unit. -
Evaluation of communication equipment
to various tests for servers and rooters. -
Evaluation of power conditioners
for simulation of solar cells and fuel cells. -
Evaluation of power device
when you like to impress various voltage. -
Evaluation of inverter
applied to multiple systems as 100 V or 200 V systems with one unit.
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)
IMAGES OF OUTPUT RANGE
Possible to output wide range voltage and current compared with traditional DC power supplies by the turbo function.
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 | |
Discontinued Products
Sales of the following models ended on January 2022. We continue to support the 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
-LDe Option
(1) Function for pulse & ramp and master follow
Output control as next A to D is 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 a repeat of a and b only or a repeat of b, c and off only, are enabled by setting time of memory a, b, c and off to 0.0.
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 the set voltage or current (or from the set voltage or current to 0V or 0 A). It is useful to like to increase/decrease voltage or current slowly.
* As for ramp operation, you can select “Both of set voltage and current”, “Voltage setting only”, or “current setting only”.
t1 and t2 can be to 0 to 999.9 s, respectively.
C. Pulse + Ramp
Pulse and ramp controls can also be combined. In addition, it can be combined with the multi-set function. Therefore, Sequence operation is possible using the voltage and current values set in the "a", "b", and "c" memories. Repeated and continuous operation, as well as the number of times, can be set. The power supply itself alone can be used to slowly and repeatedly increase or decrease voltage and current values up to three set values, making it useful in a variety of applications.
Range of 0 to 999s for t1 to t4 and a range of 0.0 s to 999.9 s for ta to tc and toff can be set respectively.
D. Master follow
Master-follow is a function that allows a slave equipment to follow the output status of the master equipment in a master/slave connection. The output status of the master equipment is transmitted to the slave equipments to enable interlocked operation. The master and slave can be set to different modes of operation, allowing for complex testing.
* The Master follow function is available only with Matsusada Precision's original digital interface.
(2) Sweep control programming
Easy programming of sweep operation!
With the -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.
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 a load of the reverse voltage is equal to or higher than the rated voltage. (inductive loads, regenerative motors, etc.)
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 settings, and convenient function for the production inspection process or testing which requires frequent data taking.
Two mode lock function
Two modes can be selected: "Full lock" which locks all front panel operations, "Standard lock" which locks all operations except for OUTPUT ON/OFF. "Full lock" mode shall be good in case a miss-operation has to be completely avoided, and "Normal lock" mode shall be good in case to avoid a miss-operation but secure the way for an emergency stop of the 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 the -LUs1, -LEt, or -LGob option is selected, only one unit of the 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 Precision power supplies (*1) using master-slave connection terminal (*2) and output voltage/output current are set individually, delay trigger function can be used. (*3)
* t1 to T8 can be set in the range 0.0 to 99.9 s.
- R4K-36 series, R4K-80 series, RK-80 series, RK series, TB series, and REK series.
- Can be connected to up to 16 units.
- Only for slave-local. In the case of the slave remote control, exact same model of power supply needs to be used. Also, in the case of slave-local, each output voltage and current can be set individually. In the case of slave-remote, output voltage, and current can be set with a one-control function in 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 the 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.
Dual tracking
Multi output
Digital interface
This interface is Matsusada Precision’ s proprietary dedicated digital communication port. This interface has modular type IN and OUT ports to allow daisy-chain connection. Combined with an adapter (sold separately). Multiple power supplies can be controlled at once. Adapters for LAN, USB, RS-232C, RS-485, and GPIB are available so that you can choose a suitable communication interface. One-control operation by master/slave connection is also possible.
External analog remote control
- External output ON/OFF
- Switching REMOTE/LOCAL
- Output monitor (Voltage, Current)
- Output control (Voltage, Current, Overvoltage protection, Overcurrent protection)
- Output of status
Variable Internal Resistance Function
It is possible to simulate simply rechargeable battery, solar panel, or fuel cell by making voltage depression from current loaded by setting internal resistance to 0.00 to 32.00 Ω in CV (constant voltage) mode operation.
Specifications
Options
- -LDe
-
Pulse and ramp sequence
Please refer to Function for Pulse & Ramp Sequence and Master Follow.
- -LEt
-
LAN interface port*1 *2 *3
Digital control is enabled through LAN.
Hub needs between computer and RKT if control RKT thru LAN.
- -LGob
-
Optical interface port*1 *2 *3
This option changes the standard interfaces to built-in optical interface port. By combining this option with an adapter for optical connection (sold separately), communication between the control device and the power supply can be controlled in an isolated state. Be sure to select this option when using the product in the following environments.- -LGob: Optical interface port + optical cable 2 meters
- -LGob(Fc5): Optical interface port + optical cable 5 meters
- -LGob(Fc10): Optical interface port + optical cable 10 meters
- -LGob(Fc20): Optical interface port + optical cable 20 meters
- -LGob(Fc40): Optical interface port + optical cable 40 meters
Select the optional optical interface port (-LGob) when using this DC power supply under the following conditions.
- Noisy environments such as factories (example: when motors or coils are used nearloads or power sources).
- If this power supply and your controller (PC or PLC) cannot be installed within 2 meters.
- When there is a possibility of arcing or output short-circuit.
- -LUs1
-
USB interface port*1 *2 *3
Digital control is enabled through USB.
USB hub needs between computer and RKT if control plural RKT.
OS for USB driver: Microsoft Windows Xp/Vista/7/8/10 Both of 32 bits and 64 bits are applicable (Microsoft and Windows are registered trademarks of Microsoft Corp. in the USA and others.)
- -L(Mc0.5), -L(Mc0.15)
-
Change communication cable length
The length of the CO-M cable is to be 0.5 meters and 0.15 meters, respectively. (only either one is selectable.)
- These options can not be selected together.
- If these options are selected, the standard digital interface and master-slave function are not equipped.
Please refer to the datasheet of a digital control adapter for power supplies "CO/USB series" for the details of the digital interface function. - -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 separately CABLE TYPE5
250 V / 25 A 2.5 m Please consult our sales staff about AC cable.
- Digital interface port
-
To use Matsusada Precision’ s digital interface, you need to prepare a digital interface adapter separately. The following interface adapters are available according to your controller port.
- CO-E32m: LAN Adapter
- CO-U32m: USB Adapter
- CO-MET2-9: RS-232C (9 pin) Adapter
- CO-MET2-25: RS-232C (25 pin) Adapter
- CO-MET4-25: RS-485 (25 pin) Adapter
The connector is D-sub type. - CO-G32m: GPIB Adapter (Discontinued in December 2028)
Example of communication with a digital adapter 
For details, refer to CO/USB series
- Optical isolation adapter
-
To use the optical interface, you need to prepare an optical interface adapter separately. The following interface adapters are available according to your controller port.
- CO-E32: LAN to optical interface adapter
- USB-OPT: USB to optical interface adapter
- CO-OPT2-9: RS-232C (9 pin) to optical interface adapter
- CO-OPT2-25: RS-232C (25 pin) to optical interface adapter
- CO-OPT4-25: RS-485 (25 pin) to optical interface adapter
- CO-G32: GPIB to optical interface adapter (Discontinued in December 2028)
Example of communication with optical fiber 
For details, refer to CO/USB series
Dimensions
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-
RKT series Datasheet
Date: 2024-05-24 rev.21
PDF (2,230 KB)
-
DC POWER SUPPLIES SELECTION GUIDE
Date: 2023-12-06 rev.00
PDF (1,202 KB)
-
How to Use DC Power Supplies
Date: 2024-03-05 rev. 08
PDF (1,467 KB)
-
RKT series Instruction Manual
Last updated: March 6, 2020 rev.1.3
PDF (1,963 KB)
-
RKT series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
The account registration is necessary for downloading
-
RKT series Datasheet
Date: 2024-05-24 rev.21
PDF (2,230 KB)
-
DC POWER SUPPLIES SELECTION GUIDE
Date: 2023-12-06 rev.00
PDF (1,202 KB)
-
How to Use DC Power Supplies
Date: 2024-03-05 rev. 08
PDF (1,467 KB)
-
RKT series Instruction Manual
Last updated: March 6, 2020 rev.1.3
PDF (1,963 KB)
-
RKT series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
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.
