"Compact" "High power" "Multi-function" Programmable DC Power Supply with Superior Operability
REK series is a high-power/versatile DC programmable power supply that realizes Max. 2.5 kW by 1U (= 1.73 inches/44 mm) height, Max. 5.5 kW by 2U (= 3.5 inches/89 mm) height, Max.15.3 kW by 3U (= 5.24 inches/133 mm) height.
REK series is designed to achieve an excellent power factor as good as 0.99 *1, its high efficiency helps to reduce
environmental burden.
In addition, the series has a digital interface *2 such as LAN and USB as standard equipment and offers flexibility to easily support various automated measurements and large-scale system construction in production equipment.
We also have a lineup of REKJ series (0 to 650 V, 0.77 kW to 0.81 kW) in a half rack size of 8.35 inches/212 mm wide with
the similar functions to the REK series. (Optional to LXI compatible, some models to CE compatible)
In single phase input models.
Adaptors or options will be needed additionally.
FEATURES AND BENEFITS
Compact and high power 15 kW
Ideal for research and development with low noise switching method.
PFC (Power Factor Correction) circuit and universal input wound not select the place of operation.
Various operations by connecting multiple power supplies, such as master/slave, is possible.
REK adopts large 4-digit monitor display for both voltage and current, which contributes to precise monitoring with better recognition.
Operability and safety are improved with new features of two mode lock function and acceleration rotary encoder, which accelerate the output ramp up with the speed of rotating the encoder.
Models
Half: half-rack width
: CE marking models and correspond to Low Voltage Directive and EMC Directive.
The model attached -LEt option or -LMi option is out of CE marking acquisition. (Click here to learn more about options.)
This product is designed to be integrated into the customer's system and to meet the requirements of CE marking under the conditions of chassis mounting, noise suppression, proper protection, and isolation devices. It is not designed to perform alone.
PVCE series has CE-certified models. For more information, contact our sales representatives.
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
It is not possible to stabilize the output by controlling the back current. In case of load that has inverse voltage or overrated voltage, such as inductive load or regenerative motor, protect the power supply by adding a dummy resister or diode to prevent back current.
Multi Setting Function
Function to memorize three different voltage and current settings in addition to standard preset function.
No need to adjust the output when different setting, and convenient function for production inspection process or testing which require frequent data taking.
Two Mode Lock Function
Function to select two different lock modes for two different purposes."Full Lock" locks all the functions on the front panel, and "Normal Lock" locks all the functions except for the ON/OFF switch. "Full Lock" mode shall be good in case mis-operation has 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, an emergency stop is possible with Power Switch.)
Full LOCK
Lock all the functions other than reset lock mode. This mode is good for purpose. to avoid mis-operation completely
Normal LOCK
Lock voltage and current setting dial. This mode is good for purpose to avoid changing output settings by mistake or when an easy emergency stop is required.
Delay Trigger Function
In case the -LUs1, -LEt, or -LGob option is selected, only one unit of the REK/REKJ series can be used.
Function to delay the OUTPUT ON/OFF time. It is possible to use in case a single unit of the REK/REKJ 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
R4K-36 series, R4K-80 series, RK-80 series, RK series, TB series and RKT series.
A detailed datasheet for each model is available. Please contact the nearby sales office.
Can be connected up to 16 pieces.
Only for slave-local. In the case of slave remote control, the 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.
* t1 to T8 can be set in the range 0.0 to 99.9 s.
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 dual tracking control, models at output voltage exceeding 250 V are not available with the function.
Dual Tracking
Multiple Outputs
Digital Control Function
Control Function
Output ON/OFF setting
Display of various Status (fault/output/OVP/OCP/OTP/ACF/reverse sense
connection/interlock)
Digital Control Max. 16 units
(-LGob option models: Max. 32 units)
Package Control Multiple Units Hooked
Write Function
Setting Output Voltage/Setting Output Current
Percent Mode, Voltage or Current Value Mode
Setting OVP/Setting OCP
Percent Mode, Voltage or Current Value Mode
Read Function
Measured Output Voltage/Measured Output Current
Percent Mode, Voltage or Current Value Mode
Setting Output Voltage/Setting Output Current
Percent Mode, Voltage or Current Value Mode
Setting OVP/Setting OCP
Percent Mode, Voltage or Current Value Mode
Note: Minimum setting unit for each model is one count of the indicator.
Digital Interface port
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.
(A) Modular cable (CO-M cable)
As for 1U and 2U models, this function is not available when the -LGob, -LUs1, or -LEt option is chosen.
When a noisy environment is presumed, the following -LGob option (optical interface) is required.
When a noisy environment is presumed, the following -LGob option (optical interface) is required.
External Analog Remote Control
External output ON/OFF
Output can be turned ON/OFF by relay or TTL signal.
Logic of OUTPUT can be made reverse.
Remote sensing
Prevents voltage drop-down (VO-VL) due to resistance (R) or deterioration of stability by contact resistance (Max compensation 0.5 V)
Remote/Local change
As for the output voltage control, output current control, overvoltage protection, and overcurrent protection, the remote/local mode can be individually switched by relay or TTL signal.
Output control (Voltage, Current, Overvoltage protection, Overcurrent protection)
Using the stored voltage and current setting in each memory of a, b, and c and multi-set function, sequence operation is possible. The setting of repetition to say nothing of continuous driving can be set. Various different operations, such as repetition of memory a and b or b, c and off, are possible by setting the set time of memory a, b, c, and/or off to be 0.0. Thus, it makes this model suitable for evaluation tests or other applications.
ta, tb, tc, and toff can be set with range 0.0, 1.0s to 99.9 h respectively.
B. Ramp
This function controls the ramping up and down the voltage and current to the set value (or from set voltage and current value to 0 V/0 A). It is convenient to increase (decrease) the voltage and current value slowly.
The Ramp sequence can be selected from [both set voltage and current], [only set voltage], and [only set current].
Master follow function cannot be used with -LGob, -LUs1, and -LEt option.
t1 and t2 can be set with a range of 0 to 999 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 999 s for t1 to t4 and range of 0.0 s,
1.0 s to 99.9 h 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 equipment to enable interlocked operation. The master and slave can be set to different modes of operation, allowing for complex testing.
The Ramp sequence can be selected from [both set voltage and current], [only set voltage], and [only set current].
The master follow function is only available with the standard interface.
Note: Time accuracy in sequence operation is ±0.5%. Take care when using the product in long-term running operations.
-LEt *
LAN interface port
The option is included in the -LMi option although it can be manufactured. For more information about this option, feel free to contact us.
-LEt optional models do not have CE markings.
-LGob *
Optical interface port
This option changes the standard interfaces to a 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 near loads 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.
-LMi *
Multi-digital interface port
Digital control by LAN, USB (TMC), and RS-485 (Multidrop) is available. (These simultaneous uses are impossible. And, RS-485 supports only FULL DUPLEX communications.) This option includes the -L(SCPI) option and attaches the IVI driver corresponding to the SCPI command. It makes it easy to control program development with various programming languages such as LabView, VisualBasic and C#, etc.
-LMi optional models do not have CE marking.
-LUs1
USB interface port
The option is included in the -LMi option although it can be manufactured. For more information about this option, feel free to contact us.
-L(Mc0.5), -L(Mc0.15) *
Communication cable extension
The length of CO-M cable will be 0.5 meters long 0.15 meters long. (You can choose only either.)
When ordering, add Option No. in the following order by alphabet, and input voltage to Model No.
Example: REKJ6-130-LDeMi(Mc0.5), REK100-36-LDeGob(Fc20)(1P), REK500-11-LDeMi(400V), (Alphabetical, AC input numeral order)
Accessories
Input cable
REK series
Sold separately 1.2 kW to 2.5 kW model 2.7 kW to 3.6 kW single phase input model
CABLE TYPE5
300 V/25 A For Japan or North America
2.5 meters
Sold separately 1.75 kW to 2.5 kW three-phase input model 2.7 kW to 5.5 kW model
CABLE TYPE6
600 V/25 A For Japan
2.5 meters
Sold separately 6.75 kW to 15.3 kW model
CABLE TYPE7
600 V/75 A For Japan
10 meters
REKJ series
Standard for 100 V input, 3-pin plug
CABLE TYPE8
125 V/125 A For Japan or North America
2.5 meters Fixed length
Sold separately for 200 V input, flying lead
CABLE TYPE3
250 V/10 A For Europe
2.5 meters Fixed length
Sold separately for 200 V input, 2-pin plug
CABLE TYPE4
250 V/10 A For Europe
2.5 meters Fixed length
Use an AC cable that is suitable for your usage environment and region.
Please note that other than AC input cables that correspond to the following are to be prepared by customers.
To order 2.5 meters or longer, add the length (meters) to the model No. <Example> 5 meters : CABLE TYPE 5 (5)
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)
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 (CO-MET2-9/CO-MET2-25/CO-MET4-25: The connector is D-sub type.)
CO-G32m: GPIB Adapter (Discontinued in December 2028)
Application software for power supplies and electronic loads
PSS2en series
PSS2en is the dedicated software which can actuate various power supplies, electronic loads and digital controller for power supplies manufactured by Matsusada Precision Inc. with simple set up.
It is the perfect for the aging test, the burn-in test and the withstand voltage test for electronic parts, and for the endurance test, intermittent/continuous operation test or various simulation test for electric component of automobile. For details, refer to PSS2en page.
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.
Information on related articles in Technical Knowledge
(Optional)
: CE marking models and correspond to Low Voltage Directive and EMC Directive.
