COSEL AEA-9 AC-DC Power Supplies Enclosed Instruction Manual

COSEL AEA-9 AC-DC Power Supplies Enclosed Instruction Manual

Function

Input voltage range

• The range is from 85VAC to 264VAC.
  In cases that conform with safety standard, input voltage range is 100VAC to 240VAC (50/60Hz).

• If input value doesn’t fall within above range, a unit may not operate in accordance with specifications and/or start hunting or fail.
  If you need to apply a square waveform input voltage, which is commonly used in UPS and inverters, please contact us.

• When the input voltage changes suddenly, the output voltage accuracy might exceed the specification. Please contact us.
  If the restart time of the short interruption power failure is less than 3 seconds, perform a thorough evaluation.

• A unit can operate under the input voltage dip with derating. Table1.1 and 1.2 shows the load factors that can be output.

Table1.1 IEC60601-1-2 Maximum output load factor

Table1.2 SEMI F47-0706 Maximum output load factor

100% Load factor in table 1.1 and 1.2 means the rated current (forced air cooling) in Specifications.

Inrush Current Limiting

• An inrush current limiting circuit is built-in.

• If you need to use a switch on the input side, please select one that can withstand an input inrush current.

• Relay technique is used in the inrush current limiting circuit. When
  you turn the power ON/OFF repeatedly within a short period of time, please have enough intervals so that the inrush current limiting circuit becomes operative.

• When the switch of the input is turned on, the primary inrush current and secondary inrush current will be generated because the relay technique is used for the inrush current limiting circuit.

Overcurrent protection

• Overcurrent protection is built-in and comes into effect over 101% of the peak current in. Overcurrent protection prevents the unit from short circuit and overcurrent condition.
  The unit automatically recovers when the fault condition is cleared.

• When the overcurrent protection continues, the output will be shut down.

• Output voltage recovers from overcurrent protection by shutting down the input voltage and waiting more than 3 minutes then turning on AC input again.

Peakcurrent protection

• Peakcurrent protection is built-in (The protection circuit operates when load current exceeds the rating current and the use deviates from the condition in Instruction Manual 4).
  The output will be recovered automatically after removing causes of the fault.

Overvoltage protection

• An overvoltage protection circuit is built-in. If the overvoltage protection circuit is activated, shut down the input voltage, wait more than 3 minutes and turn on the AC input again to recover the output voltage. Recovery time varies depending on such factors as input voltage value at the time of the operation.

Remarks

Please avoid applying a voltage exceeding the rated voltage to an output terminal. Doing so may cause a power supply to malfunction or fail. If you cannot avoid doing so, for example, if you need to operate a motor, etc., please install an external diode on the output terminal to protect the unit.

Output voltage adjustment range

• To increase an output voltage, turn a built-in potentiometer clockwise. To decrease the output voltage, turn it counterclockwise.

Thermal protection

Thermal protection circuit is built-in and shut down under following condition.

1. When the current and the temperature which exceed from the derating curve.
2. The case FAN stops or air flow is interrupted and the amount of the wind decreases.

If the thermal protection activates, shut off input voltage, remove the cause of the overheating, wait for the unit to cool down, and recycle to recover output voltage

Output ripple and ripple noise

Output ripple noise may be influenced by measurement environment, measuring method Fig.1.1 is recommended.

C1 : Aluminum electrolytic capacitor 22μF
Fig.1.1 Measuring method of Ripple and Ripple Noise

Remarks

When GND cable of probe with flux of magnetic force from power supply are crossing, ripple and ripple noise might not measure correctly.
Please note the measuring environment.

Fig.1.2. Example of measuring output ripple and ripple noise

Isolation

For a receiving inspection, such as Hi-Pot test, gradually increase (decrease) the voltage for the start (shut down). Avoid using HiPot tester with the timer because it may generate voltage a few times higher than the applied voltage, at ON/OFF of a timer.

Series Operation and Parallel Operation

Series Operation

You can use a power supply in series operation. The output current in series operation should be lower than the rated current of a power supply with the lowest rated current among power supplies that are serially connected. Please make sure that no current exceeding the rated current flows into a power supply

Fig.2.1 Examples of connecting in series operation

In series operation, the maximum operative number of units is 9. The combined output voltage of series operation is 200V.

Parallel operation/master-slave operation

As variance of output current drawn from each power supply is maximum 10%, the total output current must not exceed the value determined by the following equation.

When the number of units in parallel operation increases, input current increases at the same time. Adequate wiring design for input circuitry is required, such as circuit pattern, wiring and current capacity for equipment. In parallel operation, the maximum operative number of units is 6

Fig.2.2 Connection method in parallel

• Output voltage in parallel operation is adjustable by using the potentiometer of the “master” unit. Select one power supply to be the master, and turn the potentiometer of the other, “slave” power supplies, clockwise to the end. Then use the potentiometer of the master to adjust output voltage.
• In series operation or parallel operation, output voltage increases like stairs due to a delay of the rise time of output voltage at turn on.
  
  Fig.2.3 Start-up wave form in series and/or parallel operation

N+1 Parallel Redundancy Operation

• You can have N+1 redundancy operation for improving system reliability.
• If you add one extra power supply in parallel operation, even if one of the power supplies in your system fails, the remaining nonfailed power supplies continue to sustain the system. If one of the power supplies stops operating, the output voltage may change about 5%.
• When unit replacement is required due to unit failure, input voltage for all units must be cut off.
• After replacement, please make sure that all wirings are completed correctly, before re-applying input voltage.
• Hot-swap or Hot-plug is not available.
• If 2 or more units failed, sufficient power could not be provided to the system. Therefore, please replace the failed unit immediately in case where unit failure is found.
• If you have any questions about series, parallel and N+1 redundancy operations, please contact us.

Life expectancy and Warranty

Life expectancy

Life expectancy is as follows.

Table3.1 Life expectancy

Forced air

| Ta [ 30℃| 10 years or more| 10 years or more
Ta = 40℃| 10 years or more| 6 years
Ta = 50℃| 5 years| 3 years

Warranty

The warranty is 5 years when average ambient temperature of year is Ta = 50C or less and load factor is average 50% or less. However, the warranty is 3 years when average ambient temperature of year is Ta = 50C or less and load factor is series 100%.

Peak current

Peak current can be used at the below condition.

Fig4.2 Relation between Peak current time and Peak current

Fig4.3 Derating curve depends on Intput voltage

Ex. Peak current calculation

Model : AEA600F-24

Conditions:
Vin : 100VAC Cooling method : convection cooling Ta : 40C
Ip = 30A, t1 = 3sec
IL = 10A, t2 = 40sec

1. Calculate Irms
   

2. Allowed Ip max
   Input voltage derating @100VAC = 80%
   Peak current time derating @ t1 : 3sec = 80%
   Ip max = 52.5 (Rated peak current) ×80%×80% = 33.6A

3. Allowed Irms max
   Input voltage derating @100VAC = 80%
   Ambient temperature derating Ta:40C = 100%
   Irms max = 17.5 (Rated current convection cooling) ×80%×100% = 14A

4. Judgment
   Ip and Irms do not exceed the maximum condition. Pass

Ground

When installing the power supply with your unit, ensure that the mounting hole FG is connected to safety ground of the unit.

It is recommended to electrically connect terminal FG and mounting hole FG to metal chassis for reducing noise.

Options

Outline of Options

C: Except a certain (e.g. terminal, potentiometer), PCB is coated.

N:

• Option -N models come with a cover.
• Appearance of Option -N models are different from that of standard models. Please see External View for details.
• Derating curve for Option -N models is different from that for standard models. Please see “Derating” for details.

T:

• Option -T models have vertically positioned screws on a terminal block.
• Please contact us for details about appearance.

Fig 6.1 Example of option -T (AEA600F)

J:

• J means terminal block is changed to connector. (Mfr : TE Connectivity).
• Please contact us for details about appearance

Fig 6.2 Example of option -J (AEA600F)

Table 6.1 Pin assignments of CN101

A

| 1| N
2| NC
3| L

B

| 1| N
2| NC
3| L

Table 6.2 Pin assignments of CN501

A

| 1| +V
2| +V
3| +V
4| –V
5| –V
6| –V

B

| 1| +V
2| +V
3| +V
4| –V
5| –V
6| –V

Table 6.3 Mating connectors and terminals on CN101 and CN501

R3:

• The following features are included.
• Please refer to the optional parts for the dedicated harness.
• Please contact us for details about appearance.

Fig 6.3 Example of option -R3 (AEA600F)

Table 6.4 Pin assignments of CN3

Table 6.5 Mating connectors and terminals on CN3

CN3

| S12B- PHDSS| PHDR- 12VS| Reel : SPHD-002T-P0.5 Loose : BPHD-001T-P0.5 *1

BPHD-002T-P0.5 *1

|

J.S.T.

*1 The manufacturer can offer only ratchet hand tool

AUX1 12V0.5A (convection cooling), 12V1A (forced air)

• This power supply is equipped with an auxiliary 12V output AUX1 (12V�10%) which is available from CN3.
• AUX1 is not isolated from the main output circuit.
• Do not exceed the current rating, it may causes malfunction or failure of the internal circuitry

AUX2 5V0.5A (convection cooling), 5V1A (forced air)

• Output AUX2 is provided from CN3. AUX2 (5V±5%) can be used to power up remote control or other circuits.
• AUX2 has been isolated from other circuit (input, output, FG, RC).
• Do not exceed the current rating, it may causes malfunction or failure of the internal circuitry.

Remote ON/OFF

• You can operate the remote ON/OFF function by sending signals to CN601. Please see Table 6.6 for specifications and Fig.6.4 for connecting examples.
• Remote ON/OFF circuits (RC and RCG) are isolated from input, output FG and AUX.
• Please note the following when using the remote ON/OFF function.

1. Turns on by drawing current to RC.
2. The current flown to RC is a 5mA typ (maximum 25mA).
3. If the output voltage is turned off through the remote ON/OFF circuit, 12V AUX stops.
4. If current of a value not listed in Table 6.6 is applied between RC+ and RC−, the output voltage may not be generated normally.
5. Please wire carefully. If you wire wrongly, the internal components of a unit may be damaged.

If the output of an external power supply is within the range of 4.5 – 12.5V, you do not need a current limiting resistor R1. If the output exceeds 12.5V, however, please connect the current limiting resistor R1

R1 Recommended resister [Ω] R1=V1 – (1.1 + Ri × 0.005)/0.005

Ri : 780( Ω)

Table6.6 Specifications of remote ON/OFF

Fig 6.4 RC circuit example

Alarm

1. PR: abnormal input voltage
2. LV: drop and shut-off of output voltage

Table 6.7 Explanation of alarms

PR

| When the input voltage is abnormal (low input voltage), the alarm signal is output from CN3.| Open collector method Good : Low

(0-0.8V, 1mA max)

Bad : High or open

(50V max)

PG

| When the rated output voltage decreases or stops, the alarm signal is output from CN3.

Note : When the overcurrent protection activated, the PG alarm will be unstable.

|

Open collector method Good : Low

(0-0.8V, 1mA max)

Bad : High or open

(50V max)

The alarm circuits (PR and PG) are isolated from others (the input, outputs, FG, AUX and other function terminals).

Fig 6.5 internal circuit of PR or PG

T5:

• Acquired UL508. UL 62368-1 and EN 62368-1 are compliant.
• CN1 and CN2 will be changed to push-in type terminal blocks.
  Please contact us for any other conditions.

P5

• Overcurrent protection will be changed to shut down mode from hic-cup mode.
• Please contact us for any other conditions.

Medical Isolation Grade

• AEA series fit 2MOPP
• Type BF

Fig.6.6 Medical Isolation Grade

Documents / Resources

| COSEL AEA-9 AC-DC Power Supplies Enclosed [pdf] Instruction Manual
AEA-9 AC-DC Power Supplies Enclosed, AEA-9, AC-DC Power Supplies Enclosed
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