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 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.
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 as 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 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".
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 the 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 values.
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
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 output on different output conditions from the master unit.
* The master follow function is only available with the standard interface.
Note: Accuracy of the timer at sequence action ±0.5%. Please take care of usage at long-running.
(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 setting, and convenient function for the production inspection process or testing which require 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 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 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 need 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.
* As for the connection, please refer to "examples for operation".
Dual tracking
Multi output
Digital interface
Enable digit control via LAN/USB/RS-232C/RS-485/GPIB as well as one control with Master/Slave.
Adapters (sold separately)
An adapter is required separately, when using the Adapter. The following adapters are available according to the connection method between the PC and the sequencer.
- Adapter for LAN: CO-E32m
- Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
- Adapter for USB: CO-U32m
- Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
- 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 GPIB: CO-G32m
- Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
A two-meter cable is provided in each unit without an interface option. If you need a longer cable, please consult with our sales staff.
Master/Slave
One-control on local in parallel is enabled up to 16 units with master/slave operation
This is not a function for parallelly connected power supplies to give out average output current.
It has to hook with each same model in the same series in master/slave.
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
Function of variable internal resistance
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 board*1 *2 *3
Digital control is enabled thru LAN.
Hub needs between computer and RKT if control RKT thru LAN.
- -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 advanced prevention of erroneous operations involved with transient phenomena 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 (sold separately)
To use the optical interface, you need to prepare an optical interface adapter separately. The following interface adapters are available according to the communication method of your controller port.
- Adapter for LAN: CO-E32
-
A total of 32 units can be connected to one CO-E32.
LAN cable is not provided.
- Adapter for USB: USB-OPT
-
A total of 32 units can be connected to one USB-OPT.
USB cable is not provided.
- 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 of 32 units can be connected.
- Adapter for GPIB: CO-G32
-
A total of 32 units can be connected to one CO-G32.
GPIB cable is not provided.
(B) Optical fiber cable
As for 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.
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 trademark of Microsoft corp. in USA and other.)
- -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 detail 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.
Dimensions
Download
![RKT series Datasheet]()
-
RKT series Datasheet
Date: 2023-08-30 Rev.20
PDF (2,999 KB)
![How to Use DC Power Supplies]()
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How to Use DC Power Supplies
Date: 2023-08-30 Rev. 07
PDF (1,467 KB)
![DC POWER SUPPLIES SELECTION GUIDE]()
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DC POWER SUPPLIES SELECTION GUIDE
Date: 2023-12-06 rev.00
PDF (1,202 KB)
![RKT series Instruction Manual]()
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RKT series Instruction Manual
Last updated: March 6, 2020 rev.1.3
PDF (1,963 KB)
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RKT series USB Driver
Date: 2023-08-23 rev1.7.5
ZIP (6,617 KB)
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![RKT series Datasheet]()
-
RKT series Datasheet
Date: 2023-08-30 Rev.20
PDF (2,999 KB)
![How to Use DC Power Supplies]()
-
How to Use DC Power Supplies
Date: 2023-08-30 Rev. 07
PDF (1,467 KB)
![DC POWER SUPPLIES SELECTION GUIDE]()
-
DC POWER SUPPLIES SELECTION GUIDE
Date: 2023-12-06 rev.00
PDF (1,202 KB)
![RKT series Instruction Manual]()
-
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)
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