Conrad NPP-750 Series 750W High Reliable Ultra Wide Output Range Battery Charger and Power Supply 2-in-1 Instruction Manual

Conrad NPP-750 Series 750W High Reliable Ultra Wide Output Range Battery

Charger and Power Supply 2-in-1

Product Information

The NPP-750 series is a high-reliable, ultra-wide output range battery charger and power supply 2-in-1 product. It has a maximum output power of 750W and comes in three different output voltage options: 12V, 24V, and 48V. The product is designed with multiple protections against short circuit, overload, overvoltage, and over-temperature. It also has a thermal-controlled DC fan for noise reduction and remote ON-OFF control. The product is dual-certified with UL62368-1, BS EN/EN62368-1, IEC62368-1, TPTC004, BS EN/EN60335-1/2-29, and IEC60335-1/2-29. The NPP-750 series is suitable for lead-acid (Pb) batteries and can be used in various applications such as radio system backup solutions, electric scooter chargers, camping cars, heavy-duty trucks, specialty vehicles, surveillance systems, industrial automation machinery, industrial control systems, mechanical and electrical equipment.

Features

• Multi-function single-unit battery charger or power supply
• Output voltage and current adjustable via potentiometer
• 3-stage charging curve for charging mode -30~+70 wide operating temperature
• Multiple protections: Short circuit / Over load / Over voltage/ Over temperature
• Thermal-controlled DC fan for noise reduction
• Remote ON-OFF control
• Comply with 62368-1+60335-1/-2-29 dual certification
• Suitable for lead-acid (Pb) batteries
• Carry handle accessory available (Order NO.:DS-Carry handle, sold separately)
• 3 years warranty

Applications

• Radio system backup solution
• Electric scooter charger
• Camping-car
• Buses
• Heavy duty truck
• Specialty vehicles
• Surveillance system
• Industrial automation machinery
• Industrial control system
• Mechanical and electrical equipment

Product Usage Instructions

The NPP-750 series battery charger and power supply is a versatile product that can be used for various applications. Before using the product, please read the user manual carefully and follow the instructions provided.
Note: The product is suitable for lead-acid (Pb) batteries only.

• Step 1: Connect the AC input side of the product to a power source. The input voltage range is 90~264VAC or 127~370VDC and the frequency range is 47~63Hz.
• Step 2: Connect the DC output side of the product to the battery. The recommended battery capacity and voltage range are specified in the user manual for each output voltage option.
• Step 3: Select the desired operation mode using the built-in potentiometer. The product can be used as a battery charger or power supply, and the output voltage and current can be adjusted using the potentiometer.
• Step 4: Turn on the product using the remote ON-OFF control if necessary.
• Step 5: Monitor the charging process using the Charger OK and Battery Full signals. The Charger OK signal indicates that the charger is working correctly, while the Battery Full signal indicates that the battery is fully charged.
• Step 6: Turn off the product using the remote ON-OFF control if necessary.
• Note: The product has multiple protections against short circuits, overload, overvoltage, and over-temperature.
  If any protection is triggered, the product will shut down and latch off the output voltage. To recover, re-power on the product after the protection is resolved.

Description

NPP-750 is a miniaturized dual-purpose charger and power supply. In addition to being used as a three-stage charger for lead-acid batteries, it can also be used as a constant voltage output power supply to drive general load. The operating mode can be quickly switched by plugging or unplugging a connector on the front panel. Other features include ultra-wide voltage output, adjustable voltage via VR on the panel (10.5~21V, 21~42V, 42~80V), adjustable charging current (50~100%), built-in intelligent fan with
variable speed based on temperature to reduce noise and extend fan lifetime, -30~+70° C wide operating temperature, suitability for use in different environments, built-in remote ON/OFF control, compliance to IC/EN/UL62368-1 and household EN60335-1/-2-29 dual safety, multiple built-in protections, and 3-year warranty. The NPP-750 is truly an intelligent, safe, and reliable universal dual-purpose charger and power supply with outstanding cost performance.

SPECIFICATION for Battery Charger mode (Default)

OUTPUT

| BOOST CHARGE VOLTAGE(Vboost)(default)| 14.4V| 28.8V| 57.6V
FLOAT CHARGE VOLTAGE(Vfloat)(default)| 13.8V| 27.6V| 55.2V

VOLTAGE ADJUSTABLE RANGE

| 10.5 ~ 21V| 21 ~ 42V| 42 ~ 80V
By built-in potentionmeter
MAX. OUTPUT CURRENT(CC)| 43A| 22.5A| 11.3A
CURRENT ADJUSTABLE RANGE

Note.3

| 21.5 ~ 43A| 11.25 ~ 22.5A| 5.65 ~ 11.3A
By built-in potentionmeter
MAX. POWER| 722.4W| 756W| 759.36W
RECOMMENDED BATTERY CAPACITY (AMP HOURS) Note.4| 150 ~ 500AH| 80 ~ 260AH| 40 ~ 130AH

INPUT

| VOLTAGE RANGE| Note.5| 90 ~ 264VAC            127 ~ 370VDC
FREQUENCY RANGE| 47 ~ 63Hz
POWER FACTOR (Typ.)| PF>0.98/115VAC, PF>0.95/230VAC at full load
EFFICIENCY (Typ.)| Note.6| 92%| 93%| 93%
AC CURRENT (Typ.)| 8.7A/115VAC             4A/230VAC
INRUSH CURRENT (Typ.)| COLD START 50A at 230VAC

PROTECTION

| SHORT CIRCUIT| Note.7| Protection type : Constant current limiting, charger will shutdown after 5 sec, re-power on to recover

OVER VOLTAGE

| 21.5 ~ 26V| 43 ~ 52V| 82 ~ 100V
Protection type : Shut down and latch off o/p voltage, re-power on to recover
OVER TEMPERATURE| Shut down O/P voltage, recovers automatically after temperature goes down

FUNCTION

| CHARGING STAGE| 3 stage only
CHARGER OK SIGNAL| The TTL signal out, Charger OK = H(4.5 ~ 5.5V) ; Charger failure or protection status =L( -0.5 ~ +0.5V)
BATTERY FULL SIGNAL| The TTL signal out, Battery full = H(4.5 ~ 5.5V ); Charging = L(-0.5 ~ +0.5V)
REMOTE CONTROL| Open : Charger stop charging             Short : Charger normal work
FAN ON/OFF CONTROL| Depends on internal temperature

ENVIRONMENT

| WORKING TEMP.| -30 ~ +70℃ (Refer to “Derating Curve”)
WORKING HUMIDITY| 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY| -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT| ±0.05%/℃ (0 ~ 50℃)
VIBRATION| 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

(Note 8)

| SAFETY STANDARDS| CB IEC62368-1,IEC60335-1/2-29, Dekra BS EN/EN62368-1,BS EN/EN60335-1/2-29, UL62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE| I/P-O/P:3KVAC  I/P-FG:2KVAC  O/P-FG:0.5KVAC
ISOLATION RESISTANCE| I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH

EMC EMISSION

| Parameter| Standard| Test Level / Note
Conducted| BS EN/EN55032 (CISPR32),BS EN/EN55014-1| Class B
Radiated| BS EN/EN55032 (CISPR32),BS EN/EN55014-1| Class B
Harmonic Current| BS EN/EN61000-3-2| Class A
Voltage Flicker| BS EN/EN61000-3-3| —–

EMC IMMUNITY

| Parameter| Standard| Test Level / Note
ESD| BS EN/EN61000-4-2| Level 3, 8KV air ; Level 2, 4KV contact
Radiated| BS EN/EN61000-4-3| Level 2, 3V/m
EFT / Burst| BS EN/EN61000-4-4| Level 2, 1KV
Surge| BS EN/EN61000-4-5| Level 2, 1KV/Line-Line,Level 3, 2KV/Line-Earth
Conducted| BS EN/EN61000-4-6| Level 2, 3Vrms
Magnetic Field| BS EN/EN61000-4-8| Level 1, 1A/m
Voltage Dips and Interruptions| BS EN/EN61000-4-11| >95% dip 0.5 periods, 30% dip 25 periods,

95% interruptions 250 periods

OTHERS

| MTBF| 883.5K hrs min.        Telcordia SR-332 (Bellcore) ; 95.7K hrs min.| MIL-HDBK-217F (25℃)
DIMENSION| 23015867mm  (LWH)
PACKING| 1.84Kg; 4pcs/ 9Kg / 1.63CUFT

NOTE

| 1. Modification for charger specification may be required for different battery specifications. Please contact battery vendor and MEAN WELL for details.

2. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.

3. Float charge voltage(Vfloat) adjustable via potentiometer in battery charger mode.

4. This is MEAN WELL’s suggested range. Please consult your battery manufacturer for their suggestions about the maximum charging current limitation.

5. Derating may be needed under low input voltages. Please check the derating curve for more details.

6.  The efficiency is measured at 16.8V charge voltage(12V model), 33.6V charge voltage(24V model), 67.2V charge voltage(48V model).

7. This protection mechanism is specified for case the short circuit occurs after the charger is turned on.

8.  The charger is considered a component that will be installed into a final equipment. All the radiation tests require an additional 132630 NIZN magnetic clasp or magnetic ring to the output line for CLASS B and without NIZN magnetic clasp or magnetic ring for CLASS A. The final equipment must be

re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”

(as available on http://www.meanwell.com)

9.  The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).

※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

SPECIFICATION for Power Supply mode (Selectable via pin3 & 4 jumper of 14pins connector on panel)

OUTPUT

| DC VOLTAGE| 14.4V| 28.8V| 57.6V

VOLTAGE ADJUSTABLE RANGE

| 10.5 ~ 21V| 21 ~ 42V| 42 ~ 80V
By built-in potentionmeter
CURRENT ADJUSTABLE RANGE| 21.5 ~ 43A| 11.25 ~ 22.5A| 5.65 ~ 11.3A
RATED CURRENT| 43A| 22.5A| 11.3A
RATED POWER| 722.4W| 756W| 759.36W
RIPPLE & NOISE(max.)| 180mVp-p| 300mVp-p| 480mVp-p
VOLTAGE TOLERANCE| ±1.0%| ±1.0%| ±1.0%
LINE REGULATION| ±0.5%| ±0.5%| ±0.5%
LOAD REGULATION| ±1.0%| ±1.0%| ±0.5%
SETUP, RISE TIME| 1800ms, 60ms/230VAC at full load
HOLD UP TIME (Typ.)| 16ms/230VAC at 75% load  10ms/230VAC at full load

INPUT

| VOLTAGE RANGE Note.3| 90 ~ 264VAC            127 ~ 370VDC
FREQUENCY RANGE| 47 ~ 63Hz
POWER FACTOR (Typ.)| PF>0.98/115VAC, PF>0.95/230VAC at full load
EFFICIENCY (Typ.)| 92%| 93%| 93%
AC CURRENT (Typ.)| 8.7A/115VAC            4A/230VAC
INRUSH CURRENT (Typ.)| COLD START 50A at 230VAC

PROTECTION

| ****

OVERLOAD

| 105 ~ 115% rated output power
Protection type : Constant current limiting, unit will shutdown after 5 sec, re-power on to recover
SHORT CIRCUIT| Protection type : Constant current limiting, unit will shutdown after 5 sec, re-power on to recover

OVERVOLTAGE

| 21.5 ~ 26V| 43 ~ 52V| 82 ~ 100V
Protection type : Shut down and latch off o/p voltage, re-power on to recover
OVER TEMPERATURE| Shut down O/P voltage, recovers automatically after temperature goes down

FUNCTION

| REMOTE CONTROL| Open : Power OFF            Short : Power ON
DC OK| The TTL signal out, DC OK = H(4.5 ~ 5.5V) ; Power supply failure or protection = L(-0.5 ~ +0.5V)
FAN SPEED CONTROL| Depends on internal temperature

ENVIRONMENT

| WORKING TEMP.| -30 ~ +70℃ (Refer to “Derating Curve”)
WORKING HUMIDITY| 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY| -40 ~ +85℃, 10 ~ 95% RH non-condensing
TEMP. COEFFICIENT| ±0.05%/℃ (0 ~ 50℃)
VIBRATION| 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes

SAFETY & EMC

(Note 4)

| SAFETY STANDARDS| CB IEC62368-1,IEC60335-1/2-29, Dekra BS EN/EN62368-1,BS EN/EN60335-1/2-29, UL62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE| I/P-O/P:3KVAC  I/P-FG:2KVAC  O/P-FG:0.5KVAC
ISOLATION RESISTANCE| I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH

EMC EMISSION

| Parameter| Standard| Test Level / Note
Conducted| BS EN/EN55032 (CISPR32),BS EN/EN55014-1| Class B
Radiated| BS EN/EN55032 (CISPR32),BS EN/EN55014-1| Class B
Harmonic Current| BS EN/EN61000-3-2| Class A
Voltage Flicker| BS EN/EN61000-3-3| —–

EMC IMMUNITY

| Parameter| Standard| Test Level / Note
ESD| BS EN/EN61000-4-2| Level 3, 8KV air ; Level 2, 4KV contact
Radiated| BS EN/EN61000-4-3| Level 2, 3V/m
EFT / Burst| BS EN/EN61000-4-4| Level 2, 1KV
Surge| BS EN/EN61000-4-5| Level 2, 1KV/Line-Line,Level 3, 2KV/Line-Earth
Conducted| BS EN/EN61000-4-6| Level 2, 3Vrms
Magnetic Field| BS EN/EN61000-4-8| Level 1, 1A/m
Voltage Dips and Interruptions| BS EN/EN61000-4-11| >95% dip 0.5 periods, 30% dip 25 periods,

95% interruptions 250 periods

OTHERS

| MTBF| 883.5K hrs min.        Telcordia SR-332 (Bellcore) ; 95.7K hrs min.        MIL-HDBK-217F (25℃)
DIMENSION| 23015867mm  (LWH)
PACKING| 1.84Kg; 4pcs/ 9Kg / 1.63CUFT

NOTE

| 1. Modification for charger specification may be required for different battery specifications. Please contact the battery vendor and MEAN WELL for details.

2. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.

3. Derating may be needed under low input voltages. Please check the derating curve for more details.

4.  The PSU is considered a component that will be installed into a final equipment. All the radiation tests require an additional 132630 NIZN magnetic clasp or magnetic ring to the output line for CLASS B and without NIZN magnetic clasp or magnetic ring for CLASS A. The final equipment must be

re-confirmed that it still meets EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”

(as available on http://www.meanwell.com)

5.  The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitudes higher than 2000m(6500ft).

※ Product Liability Disclaimer：For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Block Diagram

Derating Curve

Function Manual
Battery Charger or Power Supply Operation modes selectable via pin3 and pin4 jumper

Charging Curve (Charging Mode)

43A

|

22.5A

|

11.3A

Vboost| 14.4V| 28.8V| 57.6V
Vfloat| 13.8V| 27.6V| 55.2V

Suitable for lead-acid batteries (flooded, Gel and AGM)

V x IOO must be less than or equal to the rated power. Please refer to the derating curve (page 4) .

Charger OK / DC OK Signal
Charger OK / DC OK signal is a TTL level signal. The maximum sourcing current is 10mA.

Remote ON-OFF Control
The NPP-750 can be turned ON/OFF by using the “Remote Control” function.

Mechanical Specification

Connector Pin No. Assignment: HRS DF11-14DP-2DS or equivalent

HRS DF11-14DS

or equivalent

|

HRS DF11-**SC

or equivalent

3,4| Battery Charger or

Power Supply mode selectable

5| Battery Full
6| Charger OK (Charger mode) or

DC OK (Power supply mode)

7| Remote ON-OFF
8| +12V-AUX
9,10| GND-AUX

LED Status Table

Control Pin No. Assignment : HRS DF11-14DP-2DS or equivalent

3,4

| Battery charger / Power supply| Open: Battery charger, Color of LED loading indicator: Reference to battery charger. Short: Power supply, Color of LED loading indicator :Green.

5

|

Battery Full

| Battery Full Signal, referenced to GND-AUX(Pin 9 & 10).

The Signal is a TTL level signal. The maximum sourcing current is 10mA and only for output.(Note.2) Low (-0.5 ~ 0.5V) : When the battery is charging.

High (4.5 ~ 5.5V) : When the battery is full.

6

|

Charger OK / DC OK

| Charger OK / DC OK Signal, referenced to GND-AUX(Pin 9 & 10).

The Signal is a TTL level signal. The maximum sourcing current is 10mA and only for output.(Note.2) Low (-0.5 ~ 0.5V) : When the charger fails or the protect function is activating.

High (4.5 ~ 5.5V) : When the charger is working properly.

7

|

Remote ON-OFF

| Remote charger ON/OFF Function.

The charger can turn the output ON/OFF by dry contact between Remote ON-OFF and +12V-AUX.(Note.2) Short (10.8 ~ 13.2V) : Charger ON ; Open(-0.5 ~ 0.5V) : Charger OFF ; The maximum input voltage is 13.2V.

8| +12V-AUX| It is controlled by the Remote ON-OFF control.
9,10| GND-AUX| The signal return is isolated from the output terminal. (+V & -V)

Note1: Non-isolated signal, referenced to [GND(signal)].
Note2: Isolated signal, referenced to GND-AUX

Accessory List
Battery Charger or Power Supply mode of pin 3 and pin 4 mating pin along with NPP-750 (Standard accessory)

|

1

Carry handle (Optional accessory, battery charger and pull handle should be ordered separately)

DS-Carry Handle

|

1

|

Handle

|

1

2

|

Foot pad

|

4

3

|

Screw

|

2

INSTALLATION MANUAL
Please refer to : http://www.meanwell.com/manual.html

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