Programmable DC-DC converter with multi function and excellent operability
VDD series are high power and variable output DC-DC converters which can be operated on DC.
Because the DC operation, VDD is most suitable for many applications.
For example, it is the best choice for R&D of next-generation energy systems and anti-disaster measure systems, such as Smart house in which electricity is supplied as DC mutually between home rechargeable batteries and EVs, and Voltage adjustment when driving DC electronic equipment by emergency large rechargeable batteries.
Furthermore, you can istall VDD into your system easily, because it is equipped with various digital interface such as LAN (Ethernet*1) and USB. *2
*1 : Ethernet is a registered trademark of Xerox Corp.
*2 : Adaptors will be needed additionally. And, -LGob option will be needed if it will be used under specific condition. Please see page 10 for detail.
|Maximum Power||Maximum Voltage|
|6V to 650V||800W to 6kW|
Lock all front panel operation to prevent erroneous operation. (emergency stop by power switch is still valid. )
Lock all the function other than reset lock mode. This mode is good for purpose to avoid mis-operation complelely.
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.
Digital control of USB / Ethernet / RS-232C / RS485 / GPIB and one-control on master slave operation.
The Master / Slave control function allows you to control up to 32 units connected in parallel from a single unit.
Prevents voltage drop down (VO-VL)due to resistance (R) or deterioration of stability by contact resistance.
Remote / Local change
Each of voltage, current or all the modes can be switched by relay or TTL signal.
alt="DC Power Supplies VDD Series Status output"
Common is floating in open collector output of common. With stand voltage 30Vdc, sink current 5mA or less.
VDD series of same model number can be connected in series or parallel to increase output voltage or current.
Total output voltage is to be up to 250V. Therefore for models with output voltage of over 250V, series operation cannot be conducted. Output current is to be the small-est current of those.Additionally, the remote switch is connected to -output, so do not connect to the other remote switch simulta- neously.
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.
Remote switch is connected to -output, so do not connect to the other remote switch simul-taneously.
-LGob : OPtical interface board + optical cable 2m
-LGob(Fc5) : OPtical interface board + optical cable 5m
-LGob(Fc10) : OPtical interface board + optical cable 10m
-LGob(Fc20) : OPtical interface board + optical cable 20m
-LGob(Fc40) : OPtical interface board + optical cable 40m
Optical communication offers insulation control. It is to prevent malfunction such as transient phenomenon by surge, lightning induction, and exogenous noise.
Enable digital control via USB
USB hub shall be required between VDD and PC when control multiple VDD.
Enable digital control via Ethernet
Hub shall be required between VDD and PC when control multiple VDD.
Change length of CO-M cable to 0.5-meter and 0.15-meter long.(Only either can be selected.)
*1 If you select this option, standard digital interface and master-slave function will not be equipped. Also, please see the CO series
catalog for detail of function of digital interface function.
*2 These options cannot be selected together. Only one of each can be selected.
How to OrderWhen ordering, suffix the above option number to the model number.
(alphabetical, input voltage order)
Connection of load
Parallel connection of load
Connection of load
Please insert a diode of which rating is bigger than output voltage and current of power supply to protect the power supply from kick back of load.
Specifications in this catalog, except otherwise specified, refer to values when maximum rating output (full scale*) after 2-hour warm up.
Applicable scope of specifications
"F.S × catalog value(*)" is applied for ripple, stability, regulations and temperature coefficient, and "value if F.S × ±1%(*)" is applied for high-voltage output linearity, monitor linearity and display linearity, both in the range of 10% to 100% of maximum rating output.
Indication is in rms that includes high-frequency noise.
Preset value does not show the actual output status accurately. If you need an accurate setting, conduct actual output without load and set a voltage. Also for setting current, conduct output after shorting the output terminal and gradually raise current before setting at a desired value.