1. The minimum setting unit of the instrument panel. With remote controlling, more detailed settings are available. Go to "Various Digital Control Functions".
2. -L(230V) option

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 sampling.

Delay Trigger Function

In case -LUs1, -LRmf option is selected, only one unit of R4K-36 series can be used.

Function to delay the OUTPUT ON/OFF time ^*1. It is possible to use in case single unit of R4K-36 series is used, and also when connecting several Matsusada power supplies ^*2 using master/slave connection terminal ^*3 and output voltage/output current are set individually, delay trigger function can be used. ^*4

1. This function is not allowed to use together with all the sequence operations in -LDe Option with Pulse sequence function, Ramp function, and Master follow function. Go to Options
2. Can be connected up to 16 pcs.
3. R4K-80 series, RK-80 series, RK series and REK series. Detail catalog for each model is available. Please contact nearby sales office.
4. 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-controlfunction which each slave unit follows the master unit setting.

*setting range of t1 to t8 is 0.0s to 99.9s

Two Mode Lock Function

Function to select two different lock functions for two different purposes. "Full Lock" locks all the function on front panel, and "Normal Lock" locks all the function except for 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.)

Full LOCK

Lock all the function other than reset lock mode, and effective for purpose to avoid mis-operation when controlled.

Normal LOCK

Lock voltage and current setting dial, and effective for purpose to avoid changing output setting by mistake or when easy emergency stop is required.

Sink Current/Sink Current Prevention Function

R4K-36 series features function to sink current, and enable to decrease the voltage quickly when turning off the output or when control the voltage down, which increase the safety of operation. In case burn-in tests such as aging test are conducted one after another in short interval, connectors can be attached or removed quickly and go for the workexchange. Which increases the efficiency of process after the output OFF operation. On the contrary by using sink current prevention function, it is possible to prevent voltage drop on the load by decreasing the current flow from load to power supply when turning off the power supply or when decrease the output voltage.

Note

It is not possible to stabilize the output by controlling back current. In case of load which has inverse voltage or over rated voltage, such as inductive load or regenerative motor, protect the power supply by adding dummy resister or diode to prevent back current.

Master/Slave Control

Master/slave can be used only when same model is used.
(Except the model with -LUs1 or -LRmf option.)

This is not a function for parallelly connected power supplies to give out average output current.

(A) GP-M Cable

As of models without interface option, a two-meter cable is provided in each unit. If you need a longer cable or additional cables, please consult with our sales staff.

Various Digital Control Functions

* Minimum value of each model is same as minimum display of front panel meter.

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.
Go to Operations

Dual Tracking

Multiple Outputs

Digital Interface

Digital control of USB/Ethernet* /RS-232C/RS485/GPIB and one-control on master/slave operation.

*Ethernet is a registered trademark of Xerox Corporation.

(A) CO-M Cable

As of models without interface option, a two-meter cable is provided in each unit. If you need a longer cable or additional cables, please consult with our sales staff.

Remote Control Functions

Remote switch ON/OFF

* +S is common. So external control voltage shall be input with +S as reference. Otherwise it can cause failure.

Output	Relay	Open collector
ON	SHORT	VCE ≤ 0.4 V
OFF	OPEN	VCE ≥ 2 V

Sink current 1 mA

Remote sensing

Compensate the voltage drop (V₀-V_L) due to resistance of output lead or drop of stability by contact resistance.
(maximum 0.5 V)

-LIc: Output current accumulation function

Accumulate the output current and display its value (up to 100 Ah). Accumulated value is stored even when output is off. Also, accumulated value which stop the output can be set preliminarily, it is very suitable to the application such as controlling plating solution.

* Please consider the location of usage. High humidity environment can be the cause of failure and corrosion.

-LUs1: USB interface board ^{*1 *2 *3}

Enable digital control with USB. One power supply can be connected per one USB port which computer equipped. In case USB port which computer equipped is not enough, please use USB hub. However, depending on USB hub, it may not work correctly.

OS: Microsoft Windows XP/Vista/7/8/10 (Both 32-bit version and 64-bit version are available.)

Microsoft Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

-LRmf: Remote multi function ^{*1 *3}

-LWo: Universal input Coming soon

100 to 240 VAC 50/60 Hz single phase.
Use appropriate AC input cable. Attached AC input cable is only for 100 V input.

-LH: Higher isolation voltage

This option make the isolation voltage to be ±1 kV, which enable extended capability of series operation.

-L(Mc0.5)^*3: Communication cable length change

-L(Mc0.15)^*3: Communication cable length change

Change length of CO-M cable to 0.5, 0.15-meter long.

-L(200V): 200 VAC ± 10% input

-L(230V): 230 VAC ± 10% input

Refer Lineup for input current.

1. When these options are selected, standard digital interface will not be equipped. Also, these options cannnot be equipped together.
2. For detailed specification of USB and digital interface, please refer data sheet of CO/USB series.
3. -LUs1 or -LRmf option cannnot be equipped together with -L (Mc0.15) and -L (Mc0.5) option.

-LDe : Pulse/Ramp sequence, Master follow function

above output control, between A to D is available.

D. Master follow

When the pulse sequence operation and the ramp work master-slave, the output signal to the slave unit is transmitted. The slave unit can be output in an output status different from the master unit.（Master follow function cannot be used with -LUs1 option.）

Note: The operation accuracy of the timer when sequensing is 0.5%. Be careful when you use it by the long-term running operation.

AC Input Cable

In R4K-36 series, the output voltage and current can be increased by connecting the same models in series or parallel operation.
As to the control, the use of local control or digital master/slave control is recommended. The common of the external input control connector is connected to +output of the power supply.
So, do not connect it to any common of other power supplies.

Series operation

Total output voltage is to be up to 250 V (-LH option models: 1 kV). Therefore for models with output voltage of over 250 V (or 1 kV), series operation cannot be conducted. Output current is to be the smallest current of those.

Parallel operation

Please keep all the settings of voltage the same. Output current will be the summation of each current. Please keep OVP level of power supply maximum to prevent any damage.

Split operation

Positive output and negative output are available.

R4K-36 series Accessory Kit

* Power supply is not included in the accessories.

Various accessories are available for convenient use of the unit.

Quintette case (R4K-36QC)

Special designed case to bind 5-unit of R4K-36 series. Power ON/OFF switch will be consolidated, and also AC input line on rear panel will be bundled to one. Also, handle on the top makes easy to carry.

Accessories

• One set of translator for AC cable of five R4K-36
• Input AC cable 2.5 m single phase (3-pin type) (1)
• Instruction manual (1)
• CO-M cable 2 m (1), 0.5m (4)

• R4K-36 installation into the case to be conducted by customer. Please consult with sales office in case R4K-36 expected to be fit into the case by manufacturer side.
• Ambient temperature must not exceed the power supply's operation temperature in order for the temperature inside power supply to remain in the operation temperature. (power supply life time could be shortened to 50% if it operates in a condition where ambient temperature is 10ºC higher) It is user's sole responsibility to monitor the ambient temperature not to exceed the specification.
• Input AC for Quintet case is 115 V. In case 5 units of R4K-36 series power supply ordered with option -L (230 V) are expected to use with the case, please specify R4K-36QC-L(230 V) at the purchase.