Kikusui PAN 35-5 Data Sheet

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

0 to 600 V DC, 0 to 50 A, 28 models Low noise and highly stable output achieved using the series regulation system Basic DC power supplies, superior for general-purpose use.

Outline

The PAN-A series is a high-performance, highly reliable DC power supply unit featuring regulated variable voltage. These units are suitable for use in a range of fields including research and development, quality control, and production. The PAN A series consists of a pre-regulator using FETs and a series regulator using power transistors, providing the high-quality input characteristic of the latter as well as the low power-source harmonic distortion of choke input type phase control. To achieve the high reliability and safety important for power supply, components of sufficient derating and long-proven mounting techniques are used throughout. All models are carefully designed and furnished with over voltage protection (OVP) and various safety functions.

Features

■ Low temperature drift

Carefully selected components, improved circuit design,

and heat dissipation based on the forced air cooling design have achieved a low-temperature drift of 100 ppm/°C (constant voltage characteristic) and 300 ppm/°C (constant current characteristic).

■ Quick transient response

Since the Error Amplifier has a characteristics of wide frequency bandwidth, stable gain, less phase shift and high loop gain, the PAN-A series is equipped with a highly stable and low output impedance as well as quick response to sudden change of the load. (Typical response time is 50µs)

■ Low ripple noise voltage

Not only the effective value but also the peak value are kept low.

■ Various safety functions

Various safety functions, such as an overvoltage protector (OVP) and an overheating protection circuit, are provided.

■ Application

Incorporates a wide range of functions capable of systematization, including analog signal- or computer- (GPIB) based remote control, remote sensing, and master-slave-control serial and parallel operations. (The PAN350-3.5A and PAN600-2A cannot be operated in series.)

Front Panel

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

Voltmeter, amperemeter

High-intensity LEDs offering good visibility are used. These meters indicate output voltage and current as well as output limit values.

Output ON/OFF switch

ON/OFF can also be controlled with external signals.

Power switch

The 175W and 350W models are designed so that the rectification circuit is shut down if the OVP function is activated. The 700W and 1000W models, which use a circuit protector (NFB), are designed so that the power switch is automatically shut down if the OVP function is activated.

Alarm display

“ALM” lights up when the OVP circuit is activated.

Voltage and current preset variable resistors

Shock-resisting 10-turn helical potentiometers are used (theoretical resolution: 0.018%; a guard cap is used to change to a fixed or semi-fixed knob). These variable resistors are of a wire-wound design, and sliding surfaces are treated to prevent oxidation.

Front-side output terminals

Note:There is no auxiliary output terminal on the front panel of Model PAN16-50A.

Limit switch

If this limit switch is held down, the voltmeter indicates the voltage limit value, and the amperemeter indicates the current limit value.

Preset OVP switch

If this switch is held down, the voltmeter indicates the preset OVP value.

OVP variable resistor

This is used to preset the actuating point for OVP.

Sub-panel cover

A remote-control preset switch and variable resistors for various calibrations (with offset and full-scale adjustments) are located beneath the cover.

Rear Panel

Fuse holder

Control terminals

These terminals are used for remote control, parallel, or series operations. Note:The arrangement of

sensing terminals for the PAN350-3.5A and PAN600-2A differ from other models: Terminal 1 is unassigned.

Sensing terminals

These terminals are used for remote sensing. Output terminals Forced air-cooling exhaust port

Chassis ground terminal

(175W and 1000W type have this holder inside of the unit.)

AC input terminals

(175W and 350W type have AC receptacle instead.)

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

Protection System

Failures or malfunctions of a power supply unit may cause an operational shut-down of the overall system or damages to expensive loads. Therefore, failure-free operating performance is extremely important. And should a failure occur, protection circuits must be provided that can ensure that no accident occurs.

■ Overvoltage protector (OVP)

If an overvoltage is generated by an operating error or accident, the OVP instantaneously (function pulse width: 50 ms) shuts down the power switch circuit protector, and protects the connected load. (T ype 0 and Type I2 models employ a gate block system, and shut down their rectification circuits.) Since the OVP used in the PAN-A series is of a preset design, the operating voltage can be preset by pressing the preset knob on the panel, while looking at the voltmeter. The operating voltage can be checked without interrupting the OVP operation even during aging.

■Overheat protection circuit

This circuit functions to turn off the power switch, if the temperature of some of the main components in the equipment rises higher than a specified value. A thermal fuse incorporated in the main- or sub-transformer further improves safety performance.

■ Voltage detection circuit

If the smoothing electrolytic capacitor voltage rises above a specified level owing to an operating error involving the remote selection switch inside the panel or to a failure of the rectification circuit, the voltage detection circuit functions to instantaneously shut down the rectification circuit.

■ Surge absorber

This protect the power supply unit from surge currents generated in the power line by lightning.

■ Reverse connection prevention circuit

This circuit protects the power supply unit even if a reverse polarity voltage is applied to the output terminals.

■ Overcurrent detection circuit

Using a comparison amplifier, this detection circuit constantly monitors the output current. It prevents a current from increasing beyond the rated value in the event of an over-input caused by remote control, and also prevents overcurrents caused by misoperation of the remote control selector located inside the panel.

Application

The PAN-A series enables remote control of output voltage and current using analog signals. External contact points can also be used to control ON/OFF operations

■ Remote-control using external voltage

Item to be cntrolled Control voltage* Input impedance Output voltage 0 to approx. 10V Approx. 10 kΩ Output current 0 to approx. 10V Approx. 25 kΩ

* The control voltage circuit should be floated (insulated), since "common" is connected to the positive voltage side.

■ Remote-control using external resistor

Item to be controlled Control resistor* Current in resistor Output voltage Approx. 10 kΩ Approx. 1 mA Output current Approx. 10 kΩ Approx. 0.4 mA

* For the control resistors, use metal film or wire wound resistors of 1/2 W or larger capacity, a low temperature coefficient, and good aging stability

■Remote sensing

●This is a method used to compensate for the voltage drop caused

by the cable resistance between the power unit and the load and contact resistance. The problem of voltage drops becomes more serious as the current becomes larger. By turning on the “Sens” switch at the rear panel and transferring the voltage sensing point to the end of the load , a voltage drop of up to 0.6 V can be prevented on one side. (Max. output voltage must be reduced, if the prevention of a voltage decrease of 0.3 V or higher is desired.)

Note: For the sensing function in 16V models, the maximum

●Connect an electrolytic capacitor with a capacity of a several thou-

sand to several tens of thousand of microfarads to the load end, paying attention to the polarity and making the lead wires as short as possible. The reasoning here is as follows. A long cable to the load has nonnegligible inductance, which raises the output impedance of the power supply unit to the load. A large capacitance connected to the load end can prevent this. Particularly when dealing with a load like an inverter, which turns the current on and off with high frequency, connect a capacitor with a capacity larger than several thousand microfarad using the shortest possible lead wires.

Before sensing

Load

Ed=2r×Io : Voltage drop

output voltage of this series is 105% of the rated voltage. Since the maximum output voltage of the 16V models is 16.8 V, an attempt to compensate for 1.2 V (0.6 V for one way ×

2), the full-compensating voltage, will disable output of the rated voltage. In this case, use wires that have a larger crosssectional area with less voltage drop, so that voltage drops are 0.4 V or less one-way.

Output voltage

Output current

After sensing

Output voltage

Output current

Application

■ Output ON/OFF control

●Using external contact point signals, it is possible to turn the out-

put on and off.

* Use external contact points with rated values higher than 10 VDC

and 10mA.

■ Master-slave control of parallel operation

(This control is possible only for parallel-connected units of the same model.)

Slave

● The current capacity can be increased by connecting a multiple

number of units of the same model in parallel. Output control can be performed by a master unit.

● Use only one master unit to perform remote sensing, remote con-

trol, and output on/off control.

* For one master unit, a maximum of two slave units can be con-

nected in parallel.

■ Master-slave control of series operation

(This control is possible only for series-connected units of the same model.)

Slave

● The output voltage can be increased by connecting a multiple num-

ber of units of the same model in series. The unit on the top (i.e., the positive side) plays the role of master, and can control the output of the slave unit(s).

● The example shown above is a dual tracking power supply that

can vary positive and negative voltages simultaneously.

* The number of slave units that can be connected in series depends

on the rated output voltage and the voltage to ground of the units connected in series. Example: When connecting the PAN3510A(rated output voltage: 35 V) in series, the voltage to ground is ±250 V, namely , 250 (V)÷35 (V) ber of units to be connected in series, including one master, is seven.

Note: PAN350-3.5A and PAN600-2A do not offer master-slave

control and serial operation functions.

SlaveMaster

Master

7.1. Therefore, the max. num-

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

■ Computer Control

● To control the power supply from a PC via a GPIB inter-

face, connect a PIA4800 series power supply controller to a PAN-A series power supply. * Combine the PIA4810 power supply controller and OP01PIA or OP02-PIA control board for two-channel analog control with the PIA4800 series. Since the PIA4810 controller incorporates four control boards, up to eight channels of DC power supplies or loads can be controlled.

A combination of the PAN-A series and a PIA4800 series power supply controller allows the extension of a system power supply.

■ Connection concept for the PIA4800 series power supply controllers

● For PAN-1 (OP01-PIA) To set and read back voltage and current, to turn output on/ off, or to read out a variety of monitoring signals, attach DIN connectors (to output monitoring signals) to the rear of a PAN-A series power supply, and connect a terminal unit (TU02-PIA) and shunt unit (SH series). * Installing DIN connectors is optional and entails separate installation costs.

OP01-PIA

GPIB

RS232C

● For PAN-3 (OP01-PIA) To set the voltage and current, connect signal cables to the control terminal board at the rear of the PAN-A series.

OP01-PIA

GPIB

RS232C

■ Description of Control

Connection T ype PAN-1 P AN-3 Output Voltage setting ✔✔ Output Current setting ✔✔ Output Voltage readback ✔ Output Current readback ✔ Output ON/OFF ✔ Remote/Local switching ▲(*1) Power switch OFF monitoring ▲(*2) C.V mode monitoring ▲(*2) C.C mode monitoring ▲(*2)

*1: This is a manual operation using S1 (CV) and S2 (CC) on the control panel of the

PAN-A series main unit. *2: This requires modifications to connect a DIN connector to the main unit. * Precautions

1. For the PAN600-2A, no units other than the PIA4810 power supply controller or

OP02-PIA control board may be used.

2. For more information on the PIA4800 series, see the individual catalog for that series.

3. If you have any inquiries, contact a Kikusui agent.

SLOT IN

PIA4810

SLOT IN

PIA4810

OP01-PIA accessory flat cable

SH series

accessory flat cable

TU02-PIA

PAN-A Series

User-supplied cable

OP01-PIA

accessory cable

PAN-ASeries

OUTPUT

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

Reference

Load

Since the PAN-A series is designed for a wide range of applications, there are a variety of loads to be connected. Depending on the type of load, direct connection may cause problems or malfunctions, and some countermeasures should be taken.

■ Load with accumulated energy, such as a battery

When connecting a load with accumulated energy, such as a battery, to the P AN-A series output, a large current may flow from the load to the internal capacitor through the output control circuit protection diode. This current may burn internal components or shorten the load's life. In such a cases, therefore, connect a reverse current protection diode between the power supply unit and the load as shown below.

Diode

■ When the load current has peaks or a pulse waveform

In the case of a digital or a motor driving circuit, a load current waveform will instantaneously reach the rated current range if the peak value exceeds the rated value, even if it is within the rated value on the meter indication (mean value). If so, the output voltage will drop and appear unstable. The basic remedy is to increase the output current (i.e., increase the current preset value or current capacity). However, if the pulse width is narrow or the peak value is low, it may prove effective to connect a large-capacitor to the load end.

Pulse-formed load current

Peak value CC preset value

Mean value (Meter indication)

Current with peaks

Peak value CC preset value

Mean value (Meter indication)

■ Inductive load

●The counter electromotive force generated by turning on and off of

the power supply, or changing the voltage setting is shunted by protection diode D

1 inserted in parallel with the output so that the

power supply is not damaged.

● When pulse noise generated from an inductive load is impressed

at the same polarity as the power supply , protect the power supply by inserting diode D ries with the power supply and inserting a noise prevention CR absorber across

2 in se-

Powe Supply

Diode

the switch.

■ When the output is turned on and off with a mechanical switch

● When a DC output of 100V or more is opened and closed with a

switch, arc discharge, etc. will cause the switch contacts to noticeably wear and generate noise. This noise may enter the power supply differential amplifier through the load line and cause the output to become unstable. Take noise countermeasures by inserting a CR absorber near the contacts, the same as for an inductive load.

● When performing remote

sensing, always turn the sensing line on or off simultaneously.

NOISE

＋S

＋

Linkedswitch

＋

ー ーS

Rush Current

When turning on the power, a rush current may flow, depending on when the power is turned on. Such rush currents are caused by magnetic saturation of the transformer core material. Theoretically , if the power is turned on near the phase angle 90°(π/2) of the voltage waveform, no rush current is generated. If the power is turned on at a timing corresponding to the phase angle 0°(zero cross), however, a max. current is generated. This transient phenomenon is shown below. In practice, however, the presence of a rush current is determined by the hysteresis characteristic of the B-H curve of the core material, the direction of residual magnetic flux upon switch-off, and/ or the impedance of the AC line to which the PAN-A series is connected. If the power is turned on simultaneously for a multiple number of the P AN-A series units, check that the AC line capacity or the switch board capacity is sufficient.

● Typical (max.) rush current value for the PAN-A series

(Half wave width of current waveform: approx. 5 ms)

Type 175W(0) 350W(I2) 700W(I3) 1000W(II) AC input Power voltage

100V 100V 100V 100V

Peak current 100A 200A 350A 450A

Power-on at 90°

Power-on at 0°

Voltage waveform

Peak current

Current waveform

Negative voltage

Regardless of the position of the output switch (ON/OFF), when the voltage and current preset variable resistors are turned fully counterclockwise, negative voltage in the 0 to 0.6 V range is generated at the output end. This voltage acts to generate approx. 10 mA of reverse current through the load. The PAN-A series may be inadequate for applications in which the load should be kept free from serious influence by such a reverse current.

Output terminals on the front side

The output terminals on the front side are auxiliary output terminals. These terminals may not satisfy the specification. T o satisfy the specification, use output terminals on the rear panel. Be sure to use the attached terminal cover for models with rated output voltage higher than 55 V.

Output wires The sectional area, current capacity, and resistance of these wires are as shown below.

Nominal Current estimated

sectional area for DC output wire

2(mm2) 10(A) 27(A) Approx.9 (Ω/km)

5.5 20 49 3 8 30 61 2.2

14 50 88 1.2

Current for allowable

conductor temperature 60°C (Ambient temperature 30°C)

Typical resistance

at 20°C

Model Line-up and Specifications

PAN-A series

REGULATED DC POWER SUPPLY (CV·CC)

Output Ripple Power source fluctuation Load fluctuation Size Weight Input

CV CC Model name CV CC CV CC CV CC Type (Approx.)Voltage*

V A mVrms mArms 0.005%+mV mA 0.005%+mV mA kg V Approx.kV A

0 to 10 PAN 16-10A 0.5 211130111000.4

0 to 16

0 to 35

0 to 60

0 to 70

0 to 110

0 to 160

0 to 250 0 to 350 0 to 3.5 PAN 350-3.5A 121112II361002.1

0 to 600 0 to 2 PAN 600-2A 1 0.5

* :Input voltage : 110, 120, 200, 220, 230 and 240V AC input are available at request.

0 to 18 PAN 16-18A 0.5 51113I 0 to 30 PAN 16-30A 0.5 51323I3 23 100 1.1 0 to 50 PAN 16-50A 0.5 10 1 3 2 5 II 36 100 1.6 0 to 5 PAN 35-5A 0.5 111120111000.4 0 to 10 PAN 35-10A 0.5 21113I 0 to 20 PAN 35-20A 0.5 31323I3 23 100 1.4 0 to 30 PAN 35-30A 0.5 51315II361001.8 0 to 3 PAN 60-3A 0.5 111120111000.35 0 to 6 PAN 60-6A 0.5 21113I 0 to 10 PAN 60-10A 0.5 31323I3 22 100 1.1 0 to 20 PAN 60-20A 0.5 21112II351002.1 0 to 2.5 PAN 70-2.5A 0.5 111110111000.35 0 to 5 PAN 70-5A 0.5 21112I 0 to 8 PAN 70-8A 121113I3 22 100 1.1 0 to 15 PAN 70-15A 151113II351001.9 0 to 1.5 PAN 110-1.5A 0.5 111110111000.4 0 to 3 PAN 110-3A 0.5 11112I 0 to 5 PAN 110-5A 111112I3 22 100 1.0 0 to 10 PAN 110-10A 121113II351002.0 0 to 1 PAN 160-1A 1111110111000.33 0 to 2 PAN 160-2A 111112I 0 to 3.5 PAN 160-3.5A 111122I3 22 100 1.0 0 to 7 PAN 160-7A 121122II361001.9 0 to 2.5 PAN 250-2.5A 522131I 0 to 4.5 PAN 250-4.5A 522132II351001.8

0.002%+1

0.5

0.002%+1

2 17 100 0.8

2 17 100 0.7

2 17 100 0.8

2 17 100 0.7

3 23 100 1.1

1 II 37 100 2.0

Power

consunption

Common specifications

Constant voltage 100 p.p.m./°C (standard value) temperature coefficient Constant current 300 p.p.m./°C (standard value) temperature coefficient Transient response time 50µs: Time required for the output voltage to

Ripple noise Using an AC voltmeter having a range of 5 Hz

Indication meters Voltmeter indication error ±(0.5% rdg + 2 digits) at 23°C ±5°C

Voltmeter max. indication digits

Amperemeter indication error

Amperemeter max. indication digits

Grounding Either the positive or negative terminal can be

return to a value less than 0.05% of the rated value + 10 mV, against a fluctuation of 5% to 100% of the output current.

to 1 MHz, ±3dB, indicated in mean value and effective value measurement is performed with either a positive or negative output terminal connected to the ground.

199.9 (Note: 19.99 for the PAN16-10A/ PAN16-18A/PAN16-30A/PAN16-50A models, and 1999 for the PAN250-2.5A/PAN250-

4.5A/PAN600-2A) ±(1% rdg + 5 digits) at 23°C ±5°C

19.99 (Note: 1.999 for the PAN110-1.5A/ PAN160-1A, and 199.9 for the PAN16-30A/ PAN16-50A/PAN35-20A/PAN35-30A/ PAN60-20A)

grounded.

Isolation voltage to ground ±250 VDC (However, ±500 VDC for the

PAN110-1.5A/PAN110-3A/PAN110-5A/ PAN110-10A/PAN160-1A/PAN160-2A/ PAN160-3.5A/PAN250-2.5A/PAN250-4.5A. ±1000 VDC for thePAN600-2A.)

Insulation resistance Across input side and chassis: Greater than 30

MΩ at 500 VDC Across output side and chassis: Greater than 20 MΩ at 500 VDC (For P AN350-3.5A and P AN600-2A, this is 1000 V DC, 20 MΩ, or higher.)

Withstand voltage Nothing abnormal should occur at 1500 V AC,1 min. Operating temperature 0 to 40° Operating humidity 10 to 90% RH Cooling system Forced air cooling using a fan Constant voltage operation Green LED Constant current operation Red LED Protection system ● Constant voltage/current automatic crossover

system

● Overvoltage protector (OVP)

(10% to 110% of rated output voltage)

● Overcurrent protection circuit

(Approx. 110% of rated output current)

● Overvoltage protection circuit

(Smoothing electrolytic capacitor for the rec tification circuit)

● Overheat protection circuit (OHP) (Semiconductor cooling heat-sink [100°C])

● Thermal fuse (Main- or sub-transformer) l Input/output fuse

Kikusui PAN 35-5 Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual