Mastervolt AC Master 12/300 Manual de funcionamiento

AC Master

12/300, 12/500, 24/300, 24/500

PURE SINE WAVE INVERTER

USER AND INSTALLATION MANUAL

1000014304/01

To download this manual in other languages, please

visit our website: www.mastervolt.com

AC Master

12/300, 12/500, 24/300, 24/500 – User and Installation Manual

Table of contents

1 Safety instructions ........................................................................................................................... 3

2 Liability ............................................................................................................................................ 3

3 Disclaimer ........................................................................................................................................ 3

4 Warranty .......................................................................................................................................... 3

5 Correct disposal of this product........................................................................................................ 3

6 Product description .......................................................................................................................... 4

7 Installation instructions .................................................................................................................... 5

8 Operation ......................................................................................................................................... 8

9 Troubleshooting ............................................................................................................................... 9

10 Specifications ................................................................................................................................ 10

AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual

1 Safety instructions

WARNING!

Read the entire manual before using the AC Master. Keep the manual in a secure place.

 Use the AC Master following the instructions and specifications stated in this manual.

 Connections and safety features must be executed according to the locally applicable regulations.

 Operation of the AC Master without proper grounding may lead to hazardous situations!

 Use DC-cables with an appropriate size. Integrate a fuse in the positive wiring and place it nearby

the battery. Refer to the specifications.

 If the positive and negative wires on the DC-input (battery) are exchanged, the AC Master will be

damaged. Damage of this kind is not covered by guarantee. Check whether all connections are

connected correctly before placing the fuse.

 Do not connect the AC-output of the AC Master to an incoming AC source.

 Never connect the AC Master in parallel with any other inverter.

 Never open the housing as high voltages may be present inside!

2 Liability

Mastervolt cannot be held liable for:

 Consequential damage resulting from the use of the AC Master.

 Possible errors in the included manual and the consequences of these.

 Use that is inconsistent with the purpose of the product.

3 Disclaimer

Our products are subject to continual development and improvement. Therefore, additions or

modifications to the products may cause changes to the technical data and functional specifications. No

rights can be derived from this document. Consult our most current Terms & Conditions of Sale.

4 Warranty

Mastervolt assures the product warranty of the AC Master during two years after purchase, on the

condition that the product is installed and used according to the instructions in this manual.

Installation or use not according to these instructions may result in under performance, damage or

failure of the product and may void this warranty. The warranty is limited to the cost of repair and/or

replacement of the product. Costs for labour or shipping are not covered by this warranty.

5 Correct disposal of this product

(Waste Electrical & Electronic Equipment)

This product is designed and manufactured with high quality materials and components,

which can be recycled and reused. When this crossed-out wheeled bin symbol is attached to

a product, it means the product is covered by the European Directive 2012/19/EU.

Please be informed about the local separate collection system for electrical and electronic products.

Please act according to your local rules and do not dispose of your old products with your normal

household waste. The correct disposal of your old product will help prevent potential negative

consequences to the environment and human health.

AC Master

12/300, 12/500, 24/300, 24/500 – User and Installation Manual

6 Product description

The AC Master is a sine wave inverter. The AC Master converts DC power from the battery into AC

output power.

Identification label

Part number Serial number J821A0001 with device version “A”

Important information

required for service or

maintenance can be

derived from the

identification label.

Never remove this label!

Dimensions in mm [inch]

AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual

Connections

1 Main switch

2 DC fuse(s)

3 DC input cables (1.5m)

4 Chassis ground terminal (M6)

5 AC output socket (IEC)

7 Installation instructions

This section provides a step by step instruction of the basic installation of the AC Master.

Step 1. Disconnect power supplies.

Step 2. Switch OFF the AC Master.

OFF

POWER SAVING

AC Master

12/300, 12/500, 24/300, 24/500 – User and Installation Manual

Step 3. Select a location to install.

• Install the AC Master in a well-ventilated room protected against rain, snow, spray, vapour, bilge,

moisture and dust.

• Ambient temperature: -20 to 40°C / -4 to 104°F.

• Never use the AC Master at a location where there is danger of gas or dust explosions. Mount

the AC Master vertically with the cables hanging downwards and so that airflow through the

ventilation openings is guaranteed. Mounting the AC Master in another position is possible but

influences the ingress protection degree (IP)!

• No objects are to be located within a distance of 10 cm / 4 inch around the AC Master.

• Do not install the AC Master in the same compartment as the batteries. Do not mount the AC

Master straight above the batteries because of possible corrosive sulphur fumes.

Step 4. Remove the fuse cover and DC fuse(s).

Step 5. Mount the AC Master with four screws to a solid surface.

Step 6. Connect the chassis ground terminal to the central grounding point of the vehicle/ship.

AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual

Step 7. Connect the battery to the DC input. Do not place the fuse yet!

Step 8. Wire the IEC plug.

See also figure Connections on page 5.

Front view of the IEC C14 male plug

Step 9. Connect the AC load.

For safe installation:

• The neutral conductor (N) of the AC output of

the AC Master must be connected to the safety

ground (PE/GND).

• Integrate a ground fault circuit-interrupter

(GFCI/RCD) in the wiring of the AC output.

Refer to locally applicable regulations on these

issues!

Step 10. Check all wiring. When all wiring is OK: place the DC fuse(s) and close the fuse cover.

When the fuse is placed, internal capacitors may cause a spark. This is normal.

Step 11. Switch ON the AC Master.

OFF

POWER SAVING

AC Master

12/300, 12/500, 24/300, 24/500 – User and Installation Manual

8 Operation

Switching ON and Power Saving

Move the main switch to position I (ON) or II (POWER SAVING).

Power saving mode scans the output and compares the detected load to the threshold value (40W). If a

load is detected which is below the threshold value, the inverter switches to power saving mode. If a

load is detected higher than the threshold value, the inverter is switched on.

Switching OFF

Move the main switch to the position O (OFF). Note that switching off the AC Master does not

disconnect the batteries!

LED indicators

Output LED Sine Wave LED Power LED Meaning

Continuous (green) Continuous (green) Continuous (green) Inverter OK

Blinking (green) Blinking (green) Continuous (green) Power Saving

Off Continuous (red) Continuous (green) Inverter fault

Off Blinking slowly (red) Continuous (green) Battery voltage low/high

Off Blinking fast (red) Continuous (green) Short circuit

Off Off Off Inverter off

AC Master 12/300, 12/500, 24/300, 24/500 – User and Installation Manual

9 Troubleshooting

Problem Possible cause What to do?

All LED indicators are off Main switch is set to the OFF

position.

Set the main switch in ON

position.

DC fuse(s) blown. Replace the fuse(s).

AC feedback, feedback

protection has caused the

inverter to switch off.

Remove AC power source for the

AC output and switch on the AC

Master. To avoid damage do not

install in parallel with another AC

source.

Output LED blinking green Power saving: Inverter is in

Power saving mode.

Increase the load or put the main

switch in position I.

Sine Wave LED continuously red

(Inverter fault)

Over temperature. Reduce the

load and let the inverter cool

down. It will switch on again

when the internal temperature is

sufficiently low.

Check the airflow through the

inverter. The operation of the

cooling fan may not be blocked.

Overload. Inverter attempts

restarting 5 times. If it still fails,

the AC Master remains in

Overload .

Reduce the load and/ or check

the AC wiring for possible short

circuits. Then reset the inverter

manually by switching the main

switch off and on again.

Fan fault. Contact your Mastervolt supplier.

Sine Wave LED blinking slowly

red (Battery voltage low/high)

DC input voltage too low (flat

battery).

Check the battery. At low

voltage, disconnect the load and

charge the battery. The inverter

will switch on again when the

input voltage is > 11.0V (22.0V).

DC input voltage too low: voltage

drops across the DC cables due

to too long or too narrow cables.

Reduce the length of the DC

cables or use cables with a

larger gauge.

DC input voltage is too high. Check battery voltage; switch off

charger. The inverter will switch

on again when the input voltage

is < 14.5V (29.0V).

Sine Wave LED blinking fast red

(Short circuit)

Inverter attempts a restart 5

times. If it still fails, the AC

Master remains in Short circuit.

Switch off the AC Master and

check the AC wiring. Only switch

the inverter on when the wiring

problem has been solved.

AC Master

12/300, 12/500, 24/300, 24/500 – User and Installation Manual

10 Specifications

AC Master 12/300-230V AC Master 24/300-230V

Part number 28010302 28020302

General

Output voltage 230Vac (± 5%) –

50Hz (± 0.1%)

230Vac (± 5%) –

50Hz (± 0.1%)

Output waveform True sine True sine

Nom. battery voltage 12V 24V

Cont. power at 25°C, cos phi 1 300W 300W

Cont. power at 40°C, cos phi 1 250W 250W

Peak load 600W (5s, Uac>210V) 600W (5s, Uac>210V)

AC connection IEC 60320 - C13 (female) IEC 60320 - C13 (female)

Included IEC plug IEC 60320 - C14 (male) IEC 60320 - C14 (male)

Efficiency (Max) ≥ 90% ≥ 91%

Display/read-out 3 × LED 3 × LED

Dimensions, h×w×d 210 × 130 × 60mm 210 × 130 × 60mm

Weight 1.2kg 1.2kg

Approvals CE, E-mark CE, E-mark

Technical

Technology High frequency High frequency

DC input voltage range 10.0 – 15.5V 20.0 – 31.0V

Low battery voltage, switches off at 10.0V +/- 3 % 20.0V +/- 3 %

Low battery voltage, switches on at 11.0V +/- 3 % 22.0V +/- 3 %

High battery voltage, switches off at 15.5V +/- 3 % 31.0V +/- 3 %

High battery voltage, switches on at 14.5V +/- 3 % 29.0V +/- 3 %

Input current (nominal load) 27.8A 13.7A

No-load power consumption (ON mode) 0.67A @ 12V 0.33 A @ 24V

No-load power consumption (Power

Saving mode) 0.33A @ 12V 0.17 A @ 24V

DC fuse (integrated) 40A × 2 40A

DC Cable length (integrated) 1.5m 1.5m

Harmonic distortion typical < 6% < 6%

Cos phi All power factors allowed

Temperature range (ambient temp.) -20°C to 60, derating above 40°C

Cooling Fan

Protection degree IP23 (if vertically wall mounted)

Protections Over temperature, over load, short circuit, high/low battery

voltage

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