Rack mount High Voltage Power Supplies HARS series

CONSTANT CURRENT (CC) CONTROL AND OVERCURRENT turn-off SYSTEM

In the Constant Current (CC) control system, you can set the current limit. Also, in the variable OCP function, any current value can stop the output.

Protection by Arc Trip

Arc discharge count Protection

The HARS series makes it easy to protect your power supplies with its advanced arc count & monitoring function.

There are two methods to set the output stop:

• (1) Arc Protect Count:
  The output is turned off when output current surpasses the arc count limit.

  

  Maximum arc count: 9999

• (2) Arc Protect Count and Time:
  The output is turned off when output current surpasses the arc count limit within a defined time frame.

  

  Maximum arc count: 999
  Maximum of arc protection enabling time: 59 m 59 s

Pulse Ramp Function

Set pulse/ramp operation output without a Computer control

* If the set time is shorter than the rising time: Tr or the falling time: Tf of the main unit, the output cannot follow the set value.

A. Pulse sequence

---

The function is possible by using voltage/current set on memory a, b and c in combination with multi-setting function. The function is available in continuous operation and number setting. By setting of time to 0.0 of memory a, b, c, and off, it is available for various operations like repeating a and b or b, c and off. Thus, it is suited to repeat cycle tests for products.

B. Ramp

---

It enables to make ramp action up to set voltage or current (or from the set voltage or current to 0 V or 0 A). It is useful to like to rise (reduce) voltage or current slowly. It helps sensitive electrical load not to get damaged by overshoot.
* As for ramp operation, you can select “Both of set voltage and current”, “Voltage setting only”, or “current setting only”.

C. Pulse + Ramp

---

It is also possible to use pulse action with ramp action. If the multi-setting function is combined with them, this function is available by using voltage/current set on memory a, b, and c. The function is available in continuous operation and number setting. Additionally, it is possible to slowly rise and fall voltage /current repeatedly up to three set values best suited to various applications.

External analog remote control

• External output ON/OFF
  The output can be turned ON/OFF by relay or TTL signal.

• 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 monitor (Voltage, Current)

• Output control (Voltage, Current, Overvoltage protection, Overcurrent protection)

• Status output

-LF

Floating Ground

For measuring current in load. (Able to withstand voltage of 50 Vdc)

For devices that connect to Remote control connector (TB1), -LF requires floating ground.

*Not compatible with floating high voltage power supply.

-LGob^*

Optical interface board

Available in selecting optional optical interface board
With optical communication, isolation control is performed. As complete isolation is performed via optical fiber, this enables prevention of erroneous operation involved with transient phenomenon caused by surges, inductive lightning, external noise, etc.

Separate adapter (CO/USB series) is required for control via digital interface.

-LRs^*

RS-232C/RS-485 interface

(only 10 kV or less)
Using RS-232C/RS-485 communications, output controlling and operation status monitoring of these devices can be performed.

-L(0m)

Without output cable

Output cable not provided.

If you require a cable longer than 2.5 meters, please select this option and purchase an output cable separately.