MICROPOWER GROUP PAP800UL Switched Mode Power Supply User Manual

MICROPOWER GROUP PAP800UL Switched Mode Power Supply

Features

• Switched-mode power supply
• Wide output range 0…72Vdc
• Analog control by an external 0…5Vdc
• Power failure alarm output

The Powerfinn PAP800UL is a high power, lightweight, advanced power supply using modern switching technology. The unit can be used as a power supply or constant voltage battery charger. The output voltage and output current can be adjusted from 0 to maximum using the trimmer on the front panel.

Specifications

• Input voltage: 55…140Vac (55…100Vac reduced power)
• Input current: 9A
• Power factor: >0,98 typical
• Efficiency (120Vac, 10%…100% load): 84% typical
• Inrush current: <30A, limited by an NTC resistor
• Input fuse (inside the unit): 10A
• Line regulation: ±0.1%
• Load regulation: ±0.5%
• Output setting accuracy: ±0.1%
• Output ripple (f >50Hz): <50 mVrms, In S and T versions the resolution is defined by an 8-bit A/D converter of a microcontroller. Measured using nominal output voltage.
• Hold-up time: > 2 ms
• Status LED indicator: Orange: power OK
• Isolation
  • input-chassis 1500 Vac
  • input-output 3750 Vac
  • output-chassis 500 Vac
• Standards
  • safety UL1564 – UL recognized
  • EMC EN 55022A
• Protection class mechanical: IP20 metal enclosure
  • electrical Class 1
• Dimensions: w x h x d 220 x 112 x 73 mm
• Weight: 1,55 kg
• Mounting: DIN-rail, wall, bench
• Cooling: Temperature-controlled fan
• Operating temp range: -25°C…+40°C

Power Supply Models

Trimmer adjustable power supplies

Model| Input voltage range

**)

| Nominal output voltage| Voltage Setting

range

| Nominal output

current

| Current setting

range

| Max power

**)

| Installation/dimensions (width x height x depth)
PAP800/UL24| 55…140Vac| 24Vdc| 0-36Vdc| 30A| 0-30A| 800W| Wall /bench 220x112x73
PAP800UL/36| 55…140Vac| 36Vdc| 0-54Vdc| 20A| 0-20A| 800W| Wall /bench 220x112x73
PAP800UL/48| 55…140Vac| 48Vdc| 0-72Vdc| 15A| 0-15A| 800W| Wall /bench 220x112x73

• Input voltage 55…100Vac reduced power
• Reduce power max 600W & input 5A when in use having DC input

Characteristics

Nominal output current/voltage characteristics PAP 800

• Maximum output power/input voltage de-rating characteristic (see power limitation and DC-input).
• Ambient temperature versus output power and fan speed.

• The output current–voltage characteristic at different input voltages.36VDC output voltage version.

Installation

1. The location must be dry, dust-free and indoor. The acceptable full power temperature range is 0°C…+50°C. Higher ambient temperature will limit the power (see curve). The power supply is not waterproof. Keep it dry and away from areas with high humidity in order to avoid the risk for electrical shock and damages to the charger.
2. The power supply can be installed horizontally or vertically. In case the power supply is mounted vertically with the cable plate downwards, the floor and everything right below the power supply must be fire-resistant. Vertical mounting is prohibited in case this condition cannot be met.
3. Leave at least 10 cm free space at both ends of the power supply to ensure sufficient ventilation.

When used as a charger, the charging process generates explosive hydrogen gas. Keep the area well ventilated Never use an open flame or equipment that produce sparks close to the power supply and battery.

Wall mounting

Screw the assembly board to the wall using the mounting holes in the back of the board. Next, place the power supply to the assembly board and fasten it by using the small screws on the sides of the board.

Charging operation

1. Ensure that the power supply is switched off and that the environment meets the conditions as described in the previous section.
2. Connect the output cables to the load / battery terminals: + cable to the + terminal and – cable to the – terminal
   • Note: Do not cut the output cables. In case the cables are shortened, the output voltage is overcompensated as much as the loss of voltage drops in the cable. The overcompensation may cause voltage variations depending on the current consumption.
3. Turn the power on by turning the switch to position 1.
4. During normal power supply operation / charging process, the STATUS LED will light continuous orange.
5. To avoid sparking, turn off the power supply before disconnecting the cables.

DC Input connection

The power supply input cable is connected as follows:

• L: negative or positive DC supply input
• N: positive or negative DC supply input
• PE: protective earth

The socket outlet shall be installed near the equipment and shall be easily accessible. Maximum 10A maximum rating of protective device required in building installation. When having unearthed DC mains 2 fuses or 2 pole circuit breaker required in building installation.

Output voltage and current limit adjustment

The output voltage and output current limit of the power supply can be adjusted as using the multi-turn potentiometers accessible from the front panel. Both voltage and current can be adjusted from zero to the maximum value. Maximum 800W output power is available within the adjustment range. The power supply includes 16 pre-programmed output voltages that are set by the code switch. See the setting table for this unit. Any of these 16 different voltage settings can be taken in use and additionally be adjusted within ±5% using the trimmer on the front panel. See the instructions for choosing the programmed voltage and the finetune adjustment.

LED

An orange LED indicates a healthy power supply output voltage.

Overcurrent protection

The output of the power supply is protected against overcurrents and short circuits by an automatic, self-resetting electronic current limiter.

Series/parallel connection

Parallel operation: No restrictions, passive load sharing Series operation: Series operation: Up to 500V total voltage. For more information about use with an AI or S option, ask the manufacturer.

Warning: Dangerous voltages, capable of causing death are present in the power supply. Do not remove the cover. There are no operator-serviceable parts inside the unit. Refer servicing to qualified service personnel only.

Modular connectors

Front panel

• The programming switch is situated left from the status LED.

Rear panel

• J8: Alternatively power failure alarm relay
• J5: Temperature compensation (Temp.comp models); Voltage drop compensation option
• J6: Optional external LED

Alarm relay (Option R)

On models with an alarm relay, the alarm relay output indicates whether the output voltage is healthy or not. The alarm signal is activated in case of an AC failure or charger failure. Both normally closed signals and normally open contacts are available. Pin configuration, modular connector J8 with alarm relay option.

Common is connected to NC when the power is switched off. Common is connected to NO when the power is switched on.

Cable

• Black = common
• Red = NO
• Green = NC

Relay

Isolation

• Output to case: 500V
• Output to gnd: 120V

Technical data

• 1A@24Vdc
• 0,5A@120Vac

Temperature sense (Option T & S)

The sense cable enables the charger to adjust the output voltage in accordance with the battery voltage and temperature fluctuations. The temperature sense cable is connected to connector J5. The sense cable is connected to the battery as shown below. The temperature sensor is either glued 10 cm under the battery’s top edge (see figure below), or to the cable tag connected to the battery minus.

Pin configuration

1. Ground
2. Current control input
3. Voltage control input
4. Measured current value
5. Measured voltage value
6. +5V (max 20mA) output

Pin configuration of the modular connector J1 (Option AI)

Controlling the analog card (Option AI)

All control voltages must be between 0 and +5V, Higher voltages are not allowed. The control logic is positive, so that a +5V control voltage gives a maximum value from the power supply, while 0V means minimum output. As soon the control connector is unplugged from the modular connector, the power supply is reset to the minimum output values.

The measured values can be read from the measurement signals. The measured values are scaled equal to the target values. If the power supply is set to the voltage reference, the measured value must be equal to the target. The same counts for the current control and its measured value. Measured signals (both together) can be loaded with max 20mA; otherwise proper operation cannot be guaranteed. The modular connector is isolated from the input, output and enclosure of the power supply. This enables the possibility to parallel or series connect several power supplies maintaining equal voltages. The number of connected devices is not limited. The 500V insulation voltage may, however, not be exceeded. This manual cannot be applied in case the connector of the analog card differs from a modular connector (9-pin D-connector). In that case it is an incompatible analog controlled power supply.

Connecting example using the internal +5Vdc supply and external potentiometers.The +5V can be used as a supply for external circuits. The circuit given to the left, lets the power supply operate as a potentiometer- controlled device. It is important to keep in mind that the +5V output may not be loaded more than 20mA, otherwise proper operation cannot be guaranteed.

CONTACTS

• Perämiehenkatu 6, FIN 24100 Salo,
• Tel:  +358 2 777 290,
• Fax: +358 2 777 2918,
• info@powerfinn.fi,
• www.powerfinn.fi

References

• Apache2 Debian Default Page: It works

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