Cosel ZU1R5, ZU3, ZU6, ZU10, ZT1R5 User manual

On-board type

Instruction Manual

ZU1R5 ZU3 ZU6 10ZU

Pin Connection

1

2

Function

Input voltage

2.1
Overcurrent protection

2.2
Isolation

2.3

3

Wiring to Input/Output Pin

Series Operation and Parallel Operation

4

Series operation

4.1
Parallel redundancy operation

4.2

5

Assembling and Installation Method

Installation method

5.1
Derating

5.2

6

Input Voltage/Current Range

7

Cleaning

8

Soldering

9

Input/Output Pin

10

Peak Current (Pulse Load)

F-94

F-94

F-94
F-94
F-94

F-94

F-95

F-95
F-96

F-96

F-96
F-96

F-97

F-97

F-97

F-97

F-97

ZT1R5 ZT3

Pin Connection

1

2

Function

Input voltage

2.1
Overcurrent protection

2.2
Isolation

2.3

3

Wiring to Input/Output Pin

Series Operation and Parallel Operation

4

Series operation

4.1
Parallel redundancy operation

4.2

5

Assembling and Installation Method

Installation method

5.1
Derating

5.2

6

Input Voltage/Current Range

7

Cleaning

8

Soldering

9

Input/Output Pin

10

Peak Current (Pulse Load)

F-103

F-103

F-103
F-104
F-104

F-104

F-105

F-105
F-105

F-105

F-105
F-105

F-105

F-106

F-106

F-106

F-106

ZU15 ZU25

Pin Connection

1

2

Function

Input voltage

2.1
Overcurrent protection

2.2
Overvoltage protection

2.3
Adjustable voltage range

2.4
Remote ON/OFF

2.5
Isolation

2.6

3

Wiring to Input/Output Pin

Series Operation and Parallel Operation

4

Series operation

4.1
Parallel redundancy operation

4.2

5

Assembling and Installation Method

Installation method

5.1
Derating

5.2

6

Input Voltage/Current Range

7

Cleaning

8

Soldering

F-98

F-98

F-98
F-98
F-99
F-99
F-99
F-99

F-100

F-100

F-100
F-100

F-101

F-101
F-101

F-102

F-102

F-102

ZU/ZT

9

Input/Output Pin

10

Peak Current (Pulse Load)

F-102

F-103

F-93

On-board type

ZU1R5 ZU3 ZU6 ZU10

1 Pin Connection

No. Pin connection Function

+DC INPUT

-DC INPUT
+DC OUTPUT
COMMON

-DC OUTPUT

Case connecting
pin

+Side of input voltage

-Side of input voltage
+Side of output voltage
GND of output voltage (Only applicable for Dual output)

-Side of output voltage

If connected to -side of input, the case potential can be
fixed and the value of radiation noise can be reduced.

Instruction anualM

nThe power supply which has a current foldback characteristics

may not start up when connected to nonlinear load such as lamp,

motor or constant current load. See the characteristics below.

lSingle Output

lDual(±)Output

lconnecting pin

Case connecting pin is available. By connecting this pin to -side

of input, the radiation noise from main body can be reduced.

ZU/ZT

2 Function

2.1 Input voltage

nnIf the wrong input is applied, the unit will not operate properly

and/or may be damaged.

: Load characteristics of power supply.
: Characteristics of load (lamp, motor, constant current load, etc.).

Note: In case of nonlinear load, the output is locked out at A point.

Fig.2.1 Current foldback characteristics

2.3 Isolation

nFor a receiving inspection, such as Hi-Pot test, gradually increase

(decrease) the voltage for the start (shut down). Avoid using Hi-

Pot tester with the timer because it may generate voltage a few

times higher than the applied voltage, at ON/OFF of a timer.

3 Wiring to Input/

Output Pin

nnInput filter is built-in. A capacitor Ci, if installed near the input ter-

minal, will lower the input conducted noise from converter due to

the formation of the type filter.

When the distance from the DC line to the unit is greatly ex-

tended, it makes the input feedback noise much higher and the in-

put voltage several times higher than the normal level when

turned ON. If this happens, the output power also becomes un-

stable. In order to prevent the unit form failing in this way; please

connect Ci to the input terminal. In addition, when the filter with

”L” is used, please Ci to the input terminal.

2.2 Overcurrent protection

Overcurrent protection circuit is built-in and comes into effect at

over 105% of the rated current.

Overcurrent protection prevents the unit from short circuit and

over current condition of less than 20 sec. The unit automatically

recovers when the fault condition is cleared.

F-94

Fig.3.1 Connecting method of capacitor at input terminal

Capacity of external capacitor at input terminal: Ci [µF]

Model ZUS1R5

Input voltage(V)

3, 5

12
24
48

ZUW1R5

100

47
33
10

ZUS3

ZUW3

220
100

47
22

ZUS6

ZUW6

470
220
100

47

ZUS10

ZUW10

470
220
100

47

On-board type

ZU1R5 ZU3 ZU6 ZU10

nTo lower the output ripple voltage further, install an external ca-

pacitor Co at output terminal as shown below.

Instruction anualM

4 Series Operation and

Parallel Operation

4.1 Series operation

ZUS ZUW

Fig.3.2 Connecting method of external capacitor at output terminal

Capacity of external capacitor at output terminal: Co [µF]

Model ZUS1R5

Output voltage(V)

3, 5

12
15

nWhen the distance between load and DC output is long, please in-

stall capacitor at load as shown below.

Fig.3.3 Connection method of capacitor at load

Reverse input voltage protection

n

Avoid the reverse polarity input voltage. It will damage the power

supply.

It is possible to protect the unit from the reverse input voltage by

installing an external diode as shown in Fig.3.4.

ZUW1R5

100
100
100

ZUS3

ZUW3

220
100
100

ZUS6

ZUW6

220
100
100

ZUS10

ZUW10

220
100
100

lZUS1R5/ZUW1R5 ZUS3/ZUW3

ZUS6/ZUW6

nSeries operation is available by connecting the outputs of two or

more power supplies, as shown below. Output currents in series

connection should be lower than the lowest rated current in each

unit.

But at series operation with same output voltage, diode is not re-

quired to attach even if at (a).

(a) When the output voltage is less than 5V.

D1

Power
supply

Power
supply

D1 - D4: Please use Schottky Barrier Diode.

(b) When the output voltage is more than 12V.

+

-

+

-

D3

D2

Load

D4

(a) (b)

+VIN

DC IN

-VIN

Fig.3.4 Reverse input voltage protection

+VIN

DC IN

-VIN

D1 D2: Please use Schottky Barrier Diode.

ZU/ZT

lZUS10/ZUW10

nSeries operation is available by connecting the outputs of two or

more power supplies as shown below. Output currents in series

connection should be lower than the lowest rated current in each

unit.

(c)

F-95

On-board type

(d)

4.2 Parallel redundancy operation

nParallel redundancy operation is available by connecting the units

as shown below.

12

I , I the rated current value

Instruction anualM

ZU1R5 ZU3 ZU6 ZU10

5 Assembling and

Installation Method

5.1 Installation method

nThe unit can be mounted in any direction. Position them with

proper intervals to allow enough air ventilation. Ambient tempera-

ture around each power supply should not exceed the tempera-

ture range shown in derating curve.

nAvoid placing the DC input line pattern lay out underneath the unit

because it will increase the line conducted noise. Make sure to

leave an ample distance between the line pattern lay out and the

unit. Also, avoid placing the DC output line pattern underneath

the unit because it may increase the output noise. Lay out the pat-

tern away from the unit.

ZU/ZT

YES

NO

Fig.5.1 Pattern wiring

5.2 Derating

nBy derating the output current, it is possible to operate the unit

from -20 to +71 (-20 to +85 at forced air cooling).

nWhen unit mounted any way other than in drawings below, it is re-

quired to consider ventilated environments by forced air cooling

or temperature/load derating. For details, please consult our sales

or engineering department.

F-96

On-board type

Instruction anualM

ZU1R5 ZU3 ZU6 ZU10

6 Input Voltage/

Current Range

nWhen a non-regulated source is used as a front end, make sure

that the voltage fluctuation together with the ripple voltage will not

exceed the input voltage range.

nSelect the converter that is able to handle the start-up current (Ip).

Fig.6.1 Input current characteristics

9 Input/Output Pin

n

When too much stress is applied on the input/output pins of the

unit, the internal connection may be weakened. As below Fig.

9.1, avoid applying stress of more than 19.6N (2kgf) on the pins

horizontally and more than 39.2N (4kgf) vertically.

n

The input/output pins are soldered on PCB internally, therefore,

do not pull or bend them with abnormal forces.

n

When additional stress is expected to be put on the input/output

pins because of vibration or impacts, fix the unit on PCB (using sil-

icone rubber or fixing fittings) to reduce the stress onto the in-

put/output pins.

Fig.9.1 Stress onto the pins

7 Cleaning

nCleaning is possible by below listed conditions.

Cleaning method

No.

Classification

1

Water type

2
3

Solvent type

4

No.

1

Varnishing or Ultra
sonic wave

2
3

Varnishing,Ultra sonic
wave, Vapor

4

nDuring cleaning to drying (the condition that cleaning liquid is

soaked into the ink of name plate), do not touch on the surface of

name plate.

nAfter cleaning, dry them enough.

Pine Alpha ST–100S(ARAKAWA CHEMICAL CO.)
Clean Through 750H(KAO Corporation)
IPA
Asahiklin AK–225AES(ASAHI GLASS CO.)

Cleaning method

Cleaning agents

Liquid Temp.

Less than

60

–

Period

Within 5
minutes

Within 2
minutes

8 Soldering

10 Peak Current

(Pulse Load)

nIt is possible to supply the pulse current for the pulse load by con-

necting the capacitor externally at the output side.

ZU/ZT

nFlow soldering : 260 less than 15 seconds.

nSoldering iron : 450 less than 5 seconds.

F-97