DENRYO GD300 User manual

Sine Wave Power Inverter

GD300 Series

User’s Manual

Ver.1.01E

Table of Contents

1. Safety Instructions........................................................................3

2. General Information......................................................................4

3. GD300 Inverter Features.............................................................5

3-1 Specification...............................................................................................................5

3-2 De-rating Curve ..........................................................................................................6

3-3 Dimension...................................................................................................................7

3-4 Control Panel..............................................................................................................7

4. Installation and Wiring Connections.......................................8

4-1 Installation Guide .......................................................................................................8

4-2 Wiring Connections....................................................................................................8

4-3 Setting Confirmation................................................................................................10

4-4 How to Start Up ........................................................................................................10

5. Functions........................................................................................ 11

5-1 Change Settings.......................................................................................................11

5-2 The Indicators of setting during operation ............................................................12

5-3 The Protective Function...........................................................................................12

5-4 Remote Connector ...................................................................................................14

5-5 Optional Terminal.....................................................................................................14

6. LED Indicators ..............................................................................15

6-1 The LED Indicator in Normal Status .......................................................................15

6-2 The LED Indicators when Protective Function Activates .....................................16

7. Troubleshooting Guide...............................................................17

of this document may be reproduced in any form without the prior written approval of DENRYO CO., LTD.

1. Safety Instructions

This document contains the important safety and operating information for GD300 Inverter. To get most

out of the Pure Sine Wave Inverter, carefully read, follow this guide, and save these instructions. Pay

attention to the Safety Instructions and the CAUTION and WARNING statements found throughout the

manual and on the product.

Precautions During Installation

・To avoid the risk of electric shock and fire, ensure adherence to proper electrical wiring regulations. Do not

disassemble the GD300 Inverter.

・Do not expose the GD300 Inverter to rain, snow, dust or to the places with high humidity.

・Do not install the GD300 Inverter in the environments with high temperature, near a fire, or under sun

exposure directly.

・During the operation of GD300 Inverter, the temperature of the products may become higher. Be

careful while moving or removing the products.

・To avoid covering or obstructing the ventilation openings, do not to place any objects closer than 15

cm near the Inverter.

・To avoid overheating, do not place any stuff on the product.

・To connect with more than one battery, do use the same products of batteries from the same

manufacturer. Connecting different products of batteries at the same time is dangerous.

・Batteries generate explosive gases during normal battery operation. Never smoke or allow a spark or

flame in vicinity of battery.

・This equipment contains components which can produce arcs or sparks. To prevent fire or explosion,

do not install in compartments containing batteries or flammable materials.

CAUTION

Since the battery deteriorates over time, a maintenance on a yearly

basis is recommended. Replace the deteriorated battery to prevent the

hazard of fire.

WARNING

This sign indicates the following contents includes the important

information. The wrong order of handling may lead to the risk of death

or seriously injured.

CAUTION

This sign indicates the following contents includes the important

information. The wrong order of handling may cause damage to the

products and the surrounding stuff.

MEMO

This sign indicates the following contents includes the important

information of the manuals of functions which contains

the safety

instructions or the proper operation of the product.

2. General Information

GD300 Inverter is a pure sine wave inverter that converts DC voltage to AC since wave voltage. The output

waveform is as same as the sine wave of commercial power supply, of which the total harmonic distortion

is less than 3%. High efficiency circuit and switching control achieved 90% efficiency at rated load. Without

a built-in fan, the GD300 Inverter cools down by natural convection and has reduced the size of the

products as well as kept quiet during operation. Moreover, the GD300 Inverter is equipped with abundant

protective functions. Even the input polarity is reversed whereas the internal circuit does not be damaged.

With the capability of operating under the wide input voltage range, temperature range and to turn on or

off remotely, the GD300 Inverter could be used in various environments and applications.

Features

・Protecting the input reverse polarity by its internal circuit

・Fan-less quiet operation (natural convection)

・The wide range of operating temperature（-20～60℃）

・Switching output voltage/frequency easily by button

・Pure sine wave output (total harmonic distortion less than 3%)

・Light weight and thin design

・High efficiency (90% efficiency at rated load)

・Built-in remote-control function

・Easy understanding LED indicators

・Abundant protective circuit: Input voltage warning, shut down/Input reverse polarity/

Output voltage/Output short circuit/Overload/Overtemperature

・Buzzer ON/OFF, LED brightness switchable

・Wide input voltage range

・Input system voltage of 12V/24V/48V 3 lineup

・Input terminal cover for dust prevention

・Optional communication function (T. B. D.)

Safety and EMC Certified

Safety standards :EN60950-1:2006/A2:2013

Immunity standards :EN55024:2010

Emission standards :EN55032:2012, FCC class A Part15

FCC Requirements

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant

to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference when the equipment is operated in a commercial environment. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio communications. Operation of this equipment

in a residential area is likely to cause harmful interference in which case the user will be required to correct

the interference at his own expense.

3. GD300 Inverter Features

3-1 Specification

MODEL

GD300NA-112

GD300NA-124

GD300NA-148

Input

Battery Voltage

12V

24V

48V

Voltage Range*'

10.5～17Vdc

21～34Vdc

42～68Vdc

Current Range

20～32 A

10～16 A

5～8 A

No-load Current

0.7 A

0.4 A

0.2 A

Standby Mode

Consumption

8mA 7mA 5mA

Efficiency at Rated Load

90%

Output

Rated Power

300VA

Peak Power(3min.)

360VA, refer to 3-2 de-rating curve

Surge Power(3sec.)

420VA

AC Voltage

100 default, 110/115/120Vac, switchable

Frequency

50±0.1Hz default, 50/60Hz, switchable

Waveform

Sine Wave, <3%THD

Voltage Tolerance

±3.0％

LED indicators

Operating status, Battery voltage level, Output power level,

Protection function, Operation setting

Function

Remote-control

Output remote ON/OFF control terminal

Option terminal

six-position four-conductor (6P4C) modular jack

Protection

Input

UVP*², OVP*³, input reverse polarity

Output

OLP*⁴, SCP*⁵, output voltage error

Others

OTP*⁶, detect by internal temperature sensors

Environment

Operating Temperature

-20～+40

℃

at rated load, +60

℃

at 70% load, refer to 3-2 de-rating curve

Operating Humidity

20～90%RH non-condensing

Storage Temperature/

Humidity

-30～+70℃, 10～95％RH

Vibration

10～500Hz, 3G 10min./ 1cycle, 60mins. XYZ axes

Safety &

EMC

Safety Standards

Certified EN60950-1:2006+A11+A1+A12+A2

Withstand Voltage

Battery I/P-AC O/P: 3.0kVac

AC O/P–Ground: 1.5kVac

Battery I/P– Ground：1.5kVac

Isolation Resistance

Battery I/P–AC O/P: >1000MΩ/500Vdc/25

℃

/70% RH

ACO/P –Ground: >1000MΩ/500Vdc/25℃/70% RH

Battery I/P – Ground: >1000MΩ/500Vdc/25

℃

/70% RH

EMC Immunity

EN55024:2010

EMC Emission

EN55032:2012, FCC class A

Others

Dimension

234.0×146.5×44.0mm (L×W×H)

Weight

1.0kg

All parameters NOT specially mentioned are measured at 112:12Vdc, 124:24Vdc, 148:48Vdc input, 300VArated load, power

factor=1.0, 25°C of ambient temperature and under the default setting.

*' Tolerance of voltage: 112±0.5V, 124：±1V and 148：±2V.

*² UVP: Under Voltage Protection.

*³ OVP: Over Voltage Protection.

*⁴ OLP: Over Load Protection.

*⁵ SCP: Short Circuit Protection.

*⁶ OTP: Over Temperature Protection.

3-2 De-rating Curve

According to the system and environment that products are used in, the Inverter is still under the protection

of OLP or OTP even in the range of de-rating curve. Since this feature of the Inverter, please design the

system with more allowance. Refer to the graph above, the input voltage will be double under 24V model

and 4 times more under 48V model.

3-3 Dimension

3-4 Control Panel

○

1AC Outlet

○

2AC Output Terminal

○

3Setting Button

○

4Power LED

○

5Battery LED

○

6Load LED

○

7Power Button

○

8Remote Connector

○

9Optional Terminal

○

10 Grounding Terminal

○

11 Reversed Connection

Warning LED

○

12 Battery Input (-)

○

13 Terminal Cover

○

14 Battery Input(+)

4. Installation and Wiring Connections

4-1 Installation Guide

Recommended installation location: Locate the GD300 Inverter on a flat place or rack with sufficient

strength. Avoid mounting in a dusty environment or a location with high temperature. Avoid using the

Inverter in a high temperature environment. For ventilation, do not mount any objects within 15 cm around

the inverter.

Figure 4.1 The example of installation

Recommended installation Regulation: Refer to 3-3 Dimension, there are 8 holes, Φ3.4mm, and depth

6.5mm, in the bottom of the Inverter, which could be utilized when installing the Inverter. It is recommended

to install the Inverter horizontally with the ground.

4-2 Wiring Connections

To make Battery wiring connections:

Remove the cover of the terminal on the rear side of GD300 Inverter, and wire it to the battery input terminal.

When removing the cover, slide while pushing the terminal cover toward the bottom. Mount a fuse in the

plus side wiring. Please refer to Table 4.1. to select the fuses based on the system. Please use suitable

wiring cable for power supply terminal. The screw size of battery input terminal is M4; the width of the

terminal is 9 mm. The cable size recommended to be used at rated load is 8 AWG; the torque

recommended for installation is 1.5 N · m. Using too thin cable may lead to overheating or ignition of cable.

The length of Battery wiring connection should be as short as possible that within 1.5 m is recommended.

Before continuing Battery wiring connection, check the power LED in front of GD300 is lighting orange.

Check the voltage of Battery if not lighting. Further, if the polarity of Battery is reversed, the reverse

connection warning LED near the grounding terminal in the rear of the GD300 Inverter lights red. Please

correct the polarity and check if the reverse connection warning LED is off.

Table 4.1 Fuse recommended

Model Current

112 Under 40A

124 Under 20A

148 Under 10A

CAUTION

Burns Hazard.

During operation, the temperature of GD300 Inverter will get higher. Be

careful not to touch it.

To make the grounding wire connection:

Connect from the grounding terminal in the rear of GD300 Inverter to the system is being used. The screw

size of the grounding terminal is M5; the width is 14mm. Please use solderless terminals, like R5.5-5S,

and fasten it with a screw. The cable size of 10AWG and torque 2.0 N・m is recommended.

To make load wire connection:

Connect the load from the AC outlet in the front of the GD300 Inverter or the AC output terminal. Choose

to use the cable with proper withstand voltage of AC output terminal when connecting the AC output

terminal. The VVF1.6 cable is recommended to be used here. It is connected by inserting the cable, which

is peeled off the cover, into the hole which is marked as AC OUTPUT on the front panel. The length to peel

off is around 15-20 mm and make the part which the cover has been peeled off could not be seen from

outside. Make sure that the wire connected to line (L) and neutral (N) is not short-circuited after connection.

When removing the cable, insert a flathead screwdriver in the oval hole above the cable insertion hole,

and pull the cable while pressing the flathead screwdriver to remove it.

DO NOT short the line and the neutral. Make sure the connection of the line and the neutral is correct in

your system when using both the outlet and the terminal of the Inverter.

Precautions about load:

Inverter is able to operate at most of loads under AC environment. However, even continuously suppling

300VA, there is a possibility that Inverter may not operate properly at some loads.

(1) An extremely large current, around 6~10 times more than at rated load, is required for Inverter

to startup at inductive load or the motor. The Inverter may not be able to startup normally in the

case. Please check the amount of peak current at load before choose Inverter.

(2) To ensure the complete startup of the Inverter, when connecting with a capacitive load or a

rectifier such as switching power supply, do not activate the load while the Inverter startup.

Alternatively, start up the Inverter with a smaller load and increase load afterward. If connecting

with more than two loads, please activate one load at once after the Inverter started up.

WARNING

Explosion Hazard

The short of Battery is very dangerous. Make the wire connection of

input terminal of GD300 Inverter before connecting the Battery.

CAUTION

Terminal damage.

Pressing the flathead screwdriver obliquely and strongly, the terminal

may be damaged.

WARNING

Shock Hazard

Make sure the core wire does not expose to the outside. Moreover,

when connecting the AC terminal, be sure to connect it without output

voltage.

To make Remote Connecter wire connection:

By the function of remote connecter in the rear of GD300 Inverter, it is able to turn the output ON/OFF

without pressing power button. Please refer to 5-4 Remote Terminal. The recommended size of cable for

remote connecter is 20~28AWG.

To make Optional Terminal wire connection:

The optional terminals in the rear of GD 300 Inverter uses a six-position four-conductor (6P4C) modular

jack to adapt to various application. Check DENRYO Official Website for more details.

Figure 4.2 System Wiring Diagram

4-3 Setting Confirmation

The default setting is output voltage 100Vac, output frequency 50Hz, buzzer ON, and normal mode of the

LED brightness. Pressing the setting button on the front panel to change the settings, refer to Chapter 5-

1 Change Settings. Settings remain even the Battery went out its power.

4-4 How to Start Up

Keep pressing the power button on the front side of the Inverter for around 1 second. Make sure the

Inverter is not under the protection mode by checking the LED indicators and turn on the load. The

introduction of LED indicators during operation please refer to Chapter 6 LED Indicators.

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