Sine Wave Power Inverter
GD150/GD300 Series 100V Model
User’s Manual
For S/N: W54xxxxxxx or later

Ver.1.12E

Table of Contents
1. Safety Instructions ....................................................................................................3
2. General Information ..................................................................................................4
3. Features.........................................................................................................................5
3-1 Specification ..................................................................................................................................... 5
3-2 De-rating Curve................................................................................................................................. 7
3-3 Dimension ......................................................................................................................................... 8
3-4 Control Panel .................................................................................................................................... 8

4. Installation and Wiring..............................................................................................9
4-1 Installation Guide ............................................................................................................................. 9
4-2 Wiring............................................................................................................................................... 10
4-3 Checking the Current Setting ....................................................................................................... 12
4-4 How to Start Up............................................................................................................................... 12
4-5 How to Power Off ........................................................................................................................... 12

5. Functions .................................................................................................................... 13
5-1 Change Settings ............................................................................................................................. 13
5-2 The Indicators of Setting during Operation................................................................................. 13
5-3 Operation Mode .............................................................................................................................. 14
5-4 Output Frequency .......................................................................................................................... 14
5-5 Output Voltage ................................................................................................................................ 14
5-6 Buzzer ON/OFF ............................................................................................................................... 14
5-7 LED Brightness............................................................................................................................... 14
5-8 Sleep Mode...................................................................................................................................... 14
5-9 Protections ...................................................................................................................................... 15
5-10 Remote Connector ....................................................................................................................... 17
5-11 Optional Terminal ......................................................................................................................... 17

6. LED Indicators ........................................................................................................... 18
6-1 The LED Indicator in Normal Status ............................................................................................. 18
6-2 LED Indicators when Protection Activates .................................................................................. 19

7. Troubleshooting Guide ........................................................................................... 20

This document applies to products with serial number first three digits are W54 or later. Products from W49
to W53 have the specifications described in the User's Manual Ver1.09E.

DIASINE® Sine Wave Power Inverter GD150/GD300 Series 100V Model User’s Manual©2017-2023 DENRYO CO., LTD. All Rights Reserved. No part of this document may be reproduced in any
form without the prior written consent of DENRYO CO., LTD.
2

1. Safety Instructions
This document contains important safety and operating information for DIASINE®. To get the most out of
DIASINE®, use DIASINE® only as described in the safety instructions. Read the safety instructions carefully
before installing DIASINE®.

WARNING

This sign indicates that the following contents includes important
information. The wrong order of handling may result in death or serious
injury.

CAUTION

This sign indicates that the following contents includes important
information. The wrong order of handling may cause damage to the
products and the surrounding items.

MEMO

This sign indicates that the following contents includes important
information of manuals on functions that contain safety instructions orproper operation of DIASINE®.

Installation Precautions
・ Installation and operation of DIASINE® should be performed by personnel knowledgeable aboutproper safety precautions.
・ To avoid the risk of electric shock and fire, read and follow the electrical wiring regulations. Do notdisassemble DIASINE®.
・ To avoid the risk of electric shock and fire, install DIASINE® out of the reach of children.
・ Do not expose DIASINE® to rain, snow, dust or under high humidity environment.
・ Do not install DIASINE® under high temperature environment, near fire or under direct sun exposure.
・ The temperature of DIASINE® may rise during operation. Be careful when moving or removing it.
・ To avoid covering or obstructing the ventilation openings, do not put any objects within 15cm (5.9in)area near DIASINE®.
・ To avoid overheating, do not put anything on top of it.
・ To connect more than one battery, use the same model of battery from the same manufacturer. Using
different batteries at the same time is dangerous.
・ Batteries produce explosive gases when discharged. Do not smoke or light fire near the battery.
・ DIASINE® contains components that may cause arcs or sparks. To prevent fire or explosion, do notinstall in compartments with batteries or flammable materials.

CAUTIONDo NotDisassemble

Keep Dry

Since battery deteriorates over time, maintenance on a yearly basis is
recommended. Change deteriorated batteries to prevent the hazard offire.

Danger
No Open FlameHigh Temperature

3

Do Not Stack

Keep
Air Ventilation

2. General Information
DIASINE® is a pure sine wave inverter that converts DC voltage to AC sine wave voltage. The output
waveform is the same as the sine wave of commercial power supply. Total harmonic distortion is less than
3%. High efficiency circuit and switching control achieve 90% (GD150)/89% (GD300) efficiency at full rated
load. DIASINE® is downsized presented by fanless structure, cooling by natural convection, which enables
it to operate quietly. In addition, DIASINE® is equipped with various protections. Even if the input polarity
is reversed, the internal circuit will not be damaged. Moreover, with the capability of inputting wide voltage
range, operating under wide temperature range and remote control function, DIASINE® can be used invarious environments and applications.
Features・ Input reverse polarity protection by internal circuit・ Fanless quiet operation (natural convection)
・ Wide operating temperature range (-20 to +60°C）
・ Output voltage/frequency easily switchable by button
・ Pure sine wave output (total harmonic distortion less than 3%)
・ Light weight and slim design
・ High efficiency 90% for GD150, 89% for GD300 (at full rated load)
・ Built-in remote-control function
・ Various protections: Input voltage warning, shut down, input reverse polarity,
output voltage, output short-circuit, overload and over temperature・ Buzzer ON/OFF, LED brightness switchable
・ Low power mode and sleep mode
・ Wide input voltage range
・ Input voltage of 12V/24V/48V by 3 lineups
・ Input terminal cover for dust prevention
・ Optional communication function (T. B. D.)
Block Diagram
DC Input

DC/DC

DC/AC

Safety and EMC Certified
Safety standards:EN62368-1: 2014+A11:2017
Immunity standards:EN55024:2010
Emission standards:EN55032:2012

4

FilterAC Output

3. Features
3-1 Specification

Input

Output

MODEL
Battery Voltage
Voltage Range*1
Max. Current
No-load Current*2(Low power mode)
No-load Current*2(Normal mode)Standby Mode
Consumption*2
Sleep Mode
Consumption*2
Efficiency at Rated Load
Rated Power
Peak Power (3min.)Surge Power (3sec.)
AC Voltage (switchable)
Frequency (switchable)
Waveform
Voltage Tolerance
LED indicators

FunctionProtection

Environment

Remote-control
Option terminal
Input
OutputOthersOperating Temperature
Operating Humidity
Storage Temperature/
Humidity
Vibration
Safety Standards
Withstand Voltage

Safety &EMC

OthersIsolation Resistance
EMC Immunity
EMC Emission
Accessories
Dimension (L×W×H)
Weight

GD150NA-112
12V
10.5-19.5Vdc
16.5A

GD150NA-124
24V
21-39Vdc
8A

GD150NA-148
48V
42-78Vdc
4A

0.4A

0.2A

0.1A

0.6A

0.3A

0.2A

7mA

7mA

4mA

1mA

3mA

2mA

90%
90%
91%
150VA
180VA
210VA
100 default, 110/115/120Vac
50±0.1Hz default, 50/60Hz
Sine Wave, <3%THD±3.0%
Operating status, Battery voltage level, Output power level,
Protection function, Operation setting
Output remote ON/OFF control terminal
Six-position four-conductor (6P4C) modular jack
Undervoltage, Overvoltage, Input reverse polarity
Overload, Short-circuit, Output voltage error
Over temperature (Detect by internal temperature sensors)-20 to +60°C at rated load (Refer to P.7)
20-90%RH non-condensing-30 to +70°C, 10-95%RH
10-500Hz, 3G 10min./ 1cycle, 60mins. XYZ axes
Certified EN62368-1: 2014+A11:2017
Battery I/P-AC O/P: 3.0kVac
AC O/P-Ground: 1.5kVac
Battery I/P-Ground:1.5kVac
Battery I/P-AC O/P: >1000MΩ/500Vdc/25°C/70% RH
AC O/P-Ground: >1000MΩ/500Vdc/25°C/70% RH
Battery I/P-Ground: >1000MΩ/500Vdc/25°C/70% RH
EN55024:2010
EN55032:2012
Cable with plug*3
234.0×146.5×44.0mm (9.213×5.768×1.732in)
0.8kg

All parameters NOT specially mentioned are measured at 112:12Vdc, 124:24Vdc, 148:48Vdc input, 150VA rated load, power
factor=1.0, 25°C of ambient temperature and under the default setting.
*1 Tolerance of voltage: 112±0.5V, 124: ±1V and 148: ±2V.
*2 Average.
*3 Length of cable: 1500±30mm (59±1in)

5InputOutput

MODEL
Battery Voltage
Voltage Range*1
Max. Current
No-load Current*2(Low power mode)
No-load Current*2(Normal mode)Standby Mode
Consumption*2
Sleep Mode
Consumption*2
Efficiency at Rated Load
Rated Power
Peak Power (3min.)Surge Power (3sec.)
AC Voltage (switchable)
Frequency (switchable)
Waveform
Voltage Tolerance
LED indicators

FunctionProtection

Environment

Remote-control
Option terminal
Input
OutputOthersOperating Temperature
Operating Humidity
Storage Temperature/
Humidity
Vibration
Safety Standards
Withstand Voltage

Safety &EMC

OthersIsolation Resistance
EMC Immunity
EMC Emission
Dimension (L×W×H)
Weight

GD300NA-112
12V
10.5-19.5Vdc
33A

GD300NA-124
24V
21-39Vdc
16.5A

GD300NA-148
48V
42-78Vdc
8A

0.6A

0.2A

0.1A

0.7A

0.3A

0.2A

7mA

7mA

4mA

1mA

3mA

2mA

89%
90%
90%
300VA
360VA
420VA
100 default, 110/115/120Vac
50±0.1Hz default, 50/60Hz
Sine Wave, <3%THD±3.0%
Operating status, Battery voltage level, Output power level,
Protection function, Operation setting
Output remote ON/OFF control terminal

Six-position four-conductor (6P4C) modular jack
Undervoltage, Overvoltage, Input reverse polarity
Overload, Short-circuit, Output voltage error
Over temperature (Detect by internal temperature sensors)-20 to +40°C at rated load, +60°C at 70% load (Refer to P.7)
20-90%RH non-condensing-30 to +70°C, 10-95%RH
10-500Hz, 3G 10min./ 1cycle, 60mins. XYZ axes
Certified EN62368-1: 2014+A11:2017
Battery I/P-AC O/P: 3.0kVac
AC O/P-Ground: 1.5kVac
Battery I/P-Ground:1.5kVac
Battery I/P-AC O/P: >1000MΩ/500Vdc/25°C/70% RH
AC O/P-Ground: >1000MΩ/500Vdc/25°C/70% RH
Battery I/P-Ground: >1000MΩ/500Vdc/25°C/70% RH
EN55024:2010
EN55032:2012
234.0×146.5×44.0mm (9.213×5.768×1.732in)
0.9kg

All parameters NOT specially mentioned are measured at 112:12Vdc, 124:24Vdc, 148:48Vdc input, 300VA rated load, power
factor=1.0, 25°C of ambient temperature and under the default setting.
*1 Tolerance of voltage: 112: ±0.5V, 124: ±1V and 148: ±2V.
*2 Average.

63-2 De-rating Curve
・ GD150NA-112/124/148

・ GD300NA-112

・ GD300NA-124/148

Depending on the environment, the over load protection or the over temperature protection may operate
even in the range of the derating curve. For high rated power, please install DIASINE® in an environment
with as good ventilation as possible.

73-3 Dimension

3-4 Control Panel1○

AC Outlet

2○

AC Output Terminal

3○

Setting Button

4○Power LED

5○

Battery LED

6○

Load LED

7○

Power Button

8○

Remote Connector

9○

Optional Terminal

10○

Grounding Terminal

11○

Reversed Connection Warning LED

12○

Battery Input (-)

13○

Terminal Cover

14○

Battery Input (+)

8

4. Installation and Wiring
4-1 Installation Guide
Recommended Installation Location
Install DIASINE® on a flat surface or rack with sufficient strength. Avoid mounting and using in a dusty or
high temperature environment. For ventilation, do not mount anything within 15cm (6in) area near the
DIASINE®.

Do not place any
objects on the top

More than
15cm

More than
15cm

Figure 4.1 The Example of Installation
Recommended Installation Method
There are 8 mounting holes, Φ3.4mm (0.134in), and depth 6.5mm (0.256in), in the bottom of DIASINE®
(Refer to P.8) which can be used when installing DIASINE®. The recommended screw length is
6mm(0.236in). It is recommended to install DIASINE® horizontally on a flat surface.

WARNING

Risk of Electric Shock and Damage
Screws longer than the depth of the mounting holes may damage theinternal circuit board and cause electric shock or malfunction.

CAUTION panel of the DIASINE during or immediately after use.

To avoid the risk of burns, do not touch anything other than the front®

Table 4.1 Recommended Wiring Size
Terminal
Battery Input (GD150)
Battery Input (GD300)
Grounding
AC Output
Remote Connector

Cable Size

LengthScrew Size

Terminal

Tightening

Width

TorqueAWG12(4mm2)

≤1.5m

AWG8

(59in)

M4

9mm(0.354in)

1.5Nm(10mm2)AWG10(6mm2)
VVF1.6
AWG28-20(0.08-0.5mm2)≤3m(118in)
-

9

M5

14mm
(0.551in)

2.0Nm

-

-

-

-

-

-

4-2 Wiring
Battery Wiring
Remove the terminal cover on rear side of the DIASINE®. Slide and push the terminal cover toward
DIASINE® bottom to move it. Wire to the battery input terminal. Mount fuse in positive side cable. Refer toTable 4.2 to select fuse size based on system. Use the appropriate wire size for the battery input terminal.
The screw size of the battery input terminal is M4; the width of the terminal is 9mm (0.354in).
Recommended cable size at full rated load is 12AWG (4mm2) for GD150, 8AWG (10mm2) for GD300;
recommended torque for installation is 1.5 N·m. Too thin a cable may cause overheating and fire.
Recommended length of battery cable should be as short as possible within 1.5m (59in). After connecting
to the battery, check that the power LED on the front of the DIASINE® lights orange. If the power LED does
not light up, check the battery voltage. In addition, the reversed connection warning LED near the groundterminal on the back of DIASINE® will light red if the polarity is reversed. Please correct the polarity andcheck if the warning LED turns off.
Table 4.2 Recommended Fuse Size
Model

Current

Model

Current

GD150NA-112

Under 20A

GD300NA-112

Under 40A

GD150NA-124

Under 10A

GD300NA-124

Under 20A

GD150NA-148

Under 5A

GD300NA-148

Under 10AWARNING

Explosion Hazard
It is very dangerous to short-circuit the battery. Always wire the input
terminal of the DIASINE® before connecting the battery.

Grounding Connections
Wire the grounding terminal in the rear of the DIASINE® to the system. The screw size of the grounding
terminal is M5; the width is 14mm (0.551in). Use solderless terminals, such as R5.5-5, and fasten it with ascrew. Recommended cable size is 10AWG (6mm2) and torque is 2.0 N·m.
Load Wiring
Connect the load from the AC outlet or AC output terminal in the front of the DIASINE®. Select a cable withthe appropriate voltage rating for the AC output terminal. VVF1.6 cable is recommended. Peel off
approximately 13-15mm (0.5-0.6in) of the cable jacket. Insert the cable into the hole marked AC OUTPUT
on the front panel until the stripped portion is completely inserted. Make sure the line (L) and neutral (N)are not shorted. When removing the cable, insert a flathead screwdriver into the oval hole above theinsertion hole and pull the cable out while pressing the flathead screwdriver.

CAUTION

Terminal damage.
The terminal may be damaged if the flat-blade screwdriver is pressed
obliquely and forcefully.

WARNING

Shock Hazard
Make sure the core wire is fully inserted and not exposed. Make sure
DIASINE® is not output when wiring the AC terminal.
10

Be careful NOT to short-circuit line (L) and neutral (N). Be sure to wire L and N correctly when wiring boththe outlet and AC terminals of the DIASINE®.
Precautions About Load
Most loads can work with the AC power supplied by DIASINE®. However, some loads may not work evenwhen keeping supplying with 150VA (GD150)/300VA (GD300).
(1) An extremely large current, about 6-10 times the rated power of the load, is required to start inductive
loads or motors. DIASINE® cannot handle loads with peak current above the specification. Check thepeak current required by the loads before selecting an inverter.
(2) When connecting a capacitive load or a rectifier such as a switching power supply, do not activate theload and start DIASINE® at the same time to ensure complete startup of DIASINE®. Alternatively, start
DIASINE® with a smaller load and then increase the load. If more than two loads are connected,
activate one load at a time after DIASINE® starts outputting.
Remote Connector Wiring
Using the remote connector function in the rear of the DIASINE® (Refer to P.17), DIASINE® GD series canbe turned ON/OFF without pressing the power button. The recommended cable size for the remoteconnector is 20-28AWG (0.08-0.5mm2).
Optional Terminal Wiring
Optional terminal in the rear of the DIASINE® use a six-position four-conductor (6P4C) modular connector
to adapt to various applications. Check DENRYO Official Website for more details.

To circulate air, do not install any otherequipment in this area.

20-28AWG(0.08-0.5mm2)
GD150: 12AWG (4mm2)
or more
GD300: 8AWG (10mm2)
or more(5.9in)10AWG(6mm2)
or moreFigure 4.2 System Wiring Diagram11

4-3 Checking the Current Setting
The default settings of the DIASINE® GD series are output voltage 100Vac, output frequency 50Hz, lowpower mode (Refer to P.14), buzzer ON, and LED bright. Press setting button on the front panel to change
settings (Refer to P.13). Settings are retained even if battery power is exhausted.

4-4 How to Start Up
Press and hold the power button for 1 second. Check the LED indicators that no protection circuit is working(Refer to P.19), and then turn on the load.

4-5 How to Power Off
Press and hold the power button for 1 second. DIASINE® will stop the output and switch to standby mode.

125. Functions
5-1 Change Settings
1. After connected to the battery, DIASINE® is switched to standby mode. The power LED lights orange
and other LEDs are off in standby mode. Do not connect anything to AC outlet and AC output terminal.
2. Pressing the setting button in standby mode will display the current setting for about 3 seconds. Tochange the setting, long press (for about 2 seconds) the setting button. The buzzer* sounds, and only
the power LED lights. Release the setting button and proceed to the next step.
*DIASINE® does not sound once buzzer is set OFF.
3. Refer to Table 5.1, press the setting button to select the color of the power LED until it matches theoutput frequency and operating mode you selected. Long press the setting button. The buzzer* sounds,
and only the battery LED lights. Release the setting button and proceed to the next step.
4. Refer to Table 5.1, press the setting button to select the color of the battery LED until it matches theoutput voltage you selected. Long press the setting button. The buzzer* sounds, and only the load LED
lights. Release the setting button and proceed to the next step.
5. Refer to Table 5.1, press the setting button to select the color of the load LED until it matches buzzer
setting ON/OFF and LED brightness you selected. Long press the power to complete setting process
and back to standby mode. If long press the setting button, setting mode begins again from step 3.
6. Press the setting button. Check the setting is the same as the setting you selected.
7. The setting is saved even if the battery is removed.
OperatingDescription
Standby mode to Setting modeLong-press the setting button

Change the setting items

Press the setting button

Chose the parameterLong-press the power button

Finish and save the settings

Figure 5.1 LED and Setting Button
Table 5.1 LED Color of Settings
LED

Power LED

Battery LED

Load LED

LED ColorGreen●

50Hz, Low power mode*

100Vac*Buzzer ON, bright LED*

Yellow●

60Hz, Low power mode

110VacBuzzer ON, dark LED

Blue

●

50Hz, Normal mode

115VacBuzzer OFF, bright LED

Purple●60Hz, Normal mode

120VacBuzzer OFF, dark LED*Default setting

5-2 The Indicators of Setting during Operation
It is possible to check the current settings during operation by pressing the setting button, refer to Table
5.1. The settings cannot be changed during operation.

13

5-3 Operation Mode
The DIASINE® GD series has 2 operation modes. Set it in combination with the output frequency.
Low Power Mode: In low power mode, the GD series optimizes its operating condition depending on the
input voltage and load to suppress power consumption at low load. It is particularly effective when the GD
series operates for a long time with a small load of 0 to 100W. Changing the mode setting will not change
the output waveform. However, under low power mode condition, if the load suddenly increased, such asat the moment of load activating, the output waveform may be interrupted for a half cycle time of about 10
milliseconds in the case of 50Hz output.
Normal Mode: Without regard to the load, to not to interrupt the output waveform, please choose thenormal mode. Regardless of the operation mode, the output may stop momentarily when output current
exceeds the full rated current. The self-consumption at low load is higher than in low power mode, but athigh load it is the same as in low power mode.

5-4 Output Frequency
The output frequency can be set in combination with the operation mode.
50Hz/60Hz: The default setting is 50Hz.

5-5 Output Voltage
The output voltage can be set.
100V/110V/115V/120V: The default setting is 100V.

5-6 Buzzer ON/OFF
The buzzer on/off can be set in combination with the LED brightness.
Buzzer on/off: The default setting is buzzer on. The buzzer sounds when the button is pressed, power
on/off, warning and protections work. The warning buzzer sounds 3 beeps every 5 seconds, and sounds
5 beeps every 5 seconds when protections work. Set the buzzer off to disable all of these sounds.

5-7 LED Brightness
The LED brightness can be set in combination with the buzzer on/off.
LED bright/dark: The default setting is LED bright. The LED becomes darker when chose the LED dark.

5-8 Sleep Mode
DIASINE® switches to standby mode after connecting batteries; power LED lights orange and other LEDs
light off. Under standby mode, hold power button and setting button simultaneously for 3 seconds, turns
DIASINE® to sleep mode. Under sleep mode, all LEDs are off, power consumption can be suppressedmore than standby mode. DIASINE® in sleep mode, is the same as in standby mode, can be activated by
the power button or by the remote control connector. However, the settings cannot be confirmed orchanged by pressing the setting button in sleep mode. Hold the power button and setting button again for
3 seconds turns DIASINE® back to standby mode. Disconnect the battery to cancel the sleep mode.

14

5-9 Protections
To prevent error operation, the DIASINE® GD series is equipped with protections listed below.
Input Reverse Polarity:
Reversed connection warning LED near the grounding terminal in the rear of the DIASINE® lights red
when the battery polarity is reversed. Please reconnect to correct polarity.

Input Undervoltage:
When the battery voltage is lower than the undervoltage warning value, the buzzer beeps 3 times
consecutively around every 5 seconds. When the battery voltage is lower than the undervoltage shutoff
value, DIASINE® automatically shuts off the output, buzzer beeps 5 times consecutively around every 5
seconds and the battery LED blinks red. When the battery voltage is higher than the undervoltage recovery
value, DIASINE® automatically resumes output. The buzzer will not sound if the buzzer setting is off.

MEMO

The undervoltage protection may work under conditions such as theload consuming too much power at the time of engine start. It may cause
DIASINE® to shut off the output as the battery voltage drops.

Input Overvoltage:
When the battery voltage is higher than the overvoltage warning value, the buzzer beeps 3 times
consecutively around every 5 seconds. When the battery voltage is higher than overvoltage shutoff value,
DIASINE® automatically shuts off the output, buzzer beeps 5 times consecutively around every 5 seconds
and the battery LED lights red. When the battery voltage is lower than the overvoltage recovery value,
DIASINE® automatically resumes output. The buzzer will not sound if the buzzer setting is off.

CAUTION

Damage Hazard
Please choose battery within the DIASINE® input voltage range. If 12V
battery is used with 24V model, the battery voltage is lower than input
voltage range, DIASINE® will not work. Conversely, if 48V battery isused with 24V model, the battery voltage is higher than input voltage
range, DIASINE® may be damaged.

Over Temperature:
When the internal temperature is higher than the over temperature warning value, the buzzer beeps 3
times consecutively around every 5 seconds. If the internal temperature continues to rise, theovertemperature protection is activated and DIASINE® automatically shuts off the output, the buzzer beeps
5 times consecutively around every 5 seconds and the power LED lights red. When the internal
temperature drops below the value, DIASINE® automatically resumes output.
15

Output Voltage Error:
When the AC output voltage is too high or too low, DIASINE® shuts off the output, the buzzer beeps 5times consecutively around every 5 seconds, and the load LED lights red. To cancel the error status, pleaserestart DIASINE®.
Internal Voltage Error:
If the internal voltage becomes higher than specified, such as when the DIASINE® repeatedly starts, stops
and starts when the battery voltage is higher than the overvoltage warning, the protection will be activated.
To cancel the error status, stop the DIASINE®, wait a few tens of seconds, and then restart the DIASINE®.
Output Short-circuit:
When the output terminal is short-circuited or the load suddenly increases, DIASINE® stops the AC output,
the buzzer beeps 5 times continuously every 5 seconds, and the load LED lights red. To cancel thisprotection, please restart DIASINE®.
Overload:
The overload protection works in either of the 2 conditions described in Table 5.2. One is 100%-120% of
rated power and continues for about 3 minutes or more. The other is output more than 120% of rated
power and continues for about 3 seconds. When the overload protection is activated, the DIASINE® stops
the AC output and the buzzer beeps 5 times consecutively every 5 seconds and the load LED lights red.
To cancel this protection, please restart DIASINE®.
Table 5.2 The conditions of overload protection
Overload Protection

load

Output Time

Condition 1

100%-120%

3 minutes or more

Condition 2

More than 120%

3 seconds or more

Protections can be canceled by turning DIASINE® on/off via the remoteconnector. Find out the possible causes of the protections work.
Remove these faults first before restarting DIASINE®.

MEMO

Refer to Table 5.3 for input voltage setting values of protections. Also, refer to Table 6.4 for LED indicators
when protections are operating.
Table 5.3 The Input Voltage Setting Value of Protection
Model

Input Undervoltage

Input Overvoltage

Warning

Shut off

ResumeWarning

Shut off

Resume112

11.5Vdc

10.5Vdc

12.5Vdc

18.5Vdc

19.5Vdc

18.5Vdc

124

23.0Vdc

21.0Vdc

25.0Vdc

37.0Vdc

39.0Vdc

37.0Vdc

148

46.0Vdc

42.0Vdc

50.0Vdc

74.0Vdc

78.0Vdc

74.0Vdc

16

When warnings or protections are operating, the buzzer could be turned on/off temporarily by pressing
setting button. If the buzzer was turned off by this method, the buzzer will beep again when other warnings
or protections are working. In addition, even the warning status is cancelled, the buzzer will beep again
when it returns to warning status.
Example 1. Undervoltage warning is working and buzzer is beeping. Press the setting button to turn off thebuzzer. When DIASINE® shuts off due to undervoltage protection, the buzzer will beep again.
Example 2. Over temperature warning is working and buzzer is beeping. Press the setting button to turnoff the buzzer. After temperature drops and the warning released, the buzzer will beep again
when the temperature warning is working again.
Change the setting to disable the buzzer (Refer to P.13).
If the AC output is stopped by the protections, such as input undervoltage, input overvoltage and overtemperature, DIASINE® will automatically recover. For other errors, manual recovery (power OFF and ON)
is required.
Table 5.4 Protections and Auto Recovery
Protections

Auto Recovery

Protections

Auto Recovery

Input Undervoltage

Yes

Overload / Output Short-circuit

No

Input Overvoltage

Yes

Output Voltage Error

No

Over Temperature

Yes

Internal Error

No

5-10 Remote Connector
As the Figure 5.2 method 1, connect the battery (+) to the ENABLE+ (EN+) terminal of the remoteconnector can start up the DIASINE® GD series. When ENABLE+ (EN+) is removed, the GD seriesenters standby mode or sleep mode. As the Figure 5.2 method 2, connect the ENABLE- (EN-) terminal
and the GND terminal can start up GD series. Disconnect EN- terminal and GND terminal, GD seriesenters standby mode or sleep mode. GD series can be operated by either method 1 or method 2. The
power LED lights blue when GD series is turned ON by remote connector.
If the power button is pressed when the GD series has been turned on by remote connector, the GD
series can enter standby mode or sleep mode, and cannot be turned on again until remote connector is
disconnected.
・Method■Method11

・Method■Method22

EN+

EN-

Short: ON
Open: OFF

Battery

GND

Short: ON
Open: OFF

Figure 5.2 The Wiring of Remote Connector

5-11 Optional Terminal
DIASINE® can achieve various applications by using optional terminals on the rear of panel. Check
DENRYO Official Website for more details.
17

6. LED Indicators
The blinking frequency of each LED indicator is once every two

MEMO

seconds, repeat on and off.

6-1 The LED Indicator in Normal Status
Power LED: The power LED indicates output ON/OFF status or over temperature warning status. Refer
to Table 6.1 for LED color and status indicators.
Table 6.1 Power LED Indicators
LED

Power LED

LED Colors
Orange●Standby

Orange Blink●●●●●

Standby/ Sleep (Turned ON by remote connector*)

Green

●

Power ONBlue●

Power ON (Remote is operating)

Yellow Blink●●●●●

Over temperature warning*When DIASINE® is turned ON by the remote connector, and turned OFF by the power button, the power LED blinks orange.
In this case, the output cannot be turned on until the remote connector is removed once. The power LED also [blinks orange
in sleep mode.

Battery LED: The Battery LED indicates the voltage value of the battery during operation. Refer to Table
6.2 for LED color and battery voltage indicators. For battery voltage values on 124 and 148 models, multiply
the values listed below by 2 or 4.
Table 6.2 Battery LED Indicators
LED

Battery LED

LED Colors
Yellow Blink●●●●●

Input voltage 10.5-11.5Vdc (Input Undervoltage Warning)

Yellow●

Input voltage 11.5-12.0Vdc

Green

●

Input voltage 12.0-14.0Vdc

Blue

●

Input voltage 14.0-16.5Vdc

Purple●Input voltage 16.5-18.5Vdc

Purple Blink●●●●●

Input voltage 18.5-19.5Vdc (Input Overvoltage Warning)18

Load LED: The Load LED indicates the percentage of output power during operation. Refer to Table 6.3
for LED color and percentage output power indicators.

Table 6.3 Load LED Indicators
LED

Load LED

LED Colors
Blue●

0-40% output power

Green

●

40-70% output power

Yellow●

70-100% output power

Yellow Blink●●●●●

Over than 100% output power (Overload Warning)

6-2 LED Indicators when Protection Activates
When the protection is operating, the LED indicates the status of the protection and the output shutoff.
Refer to Table 6.4 for the LED indicators and status of the protections.
Table 6.4 The Indicators of Protections
Lighting LED

Power LED

Battery LED

Load LED
All LED

Indicators
Red

●●●●●

---

Input undervoltage

AC output error

Blink
Red

Internal
voltage error●

Over temperature

Input overvoltage

Overload/Loadterminal short-

Internal error*

circuited* If the internal error occurs, remove the load, and check that the input voltage is within the normal range. Please contact
your dealer if the internal error still occurs.

19

7. Troubleshooting Guide
Error Condition

Possible Cause
Input voltage error
Battery LED lights / blinks red
Over temperature protection
Power LED lights red

No AC output
voltage

Overload protection
Load LED lights red
Short-circuit protection
Load LED lights red
AC output terminal wiring problem

Short operation
time of DIASINE®
Output voltage,
frequency error

Power LED does
not light up evenconnecting battery

Internal error
All LEDs light / blink red
Battery problem
Lack of battery capacity
Wrong setting

Change the settings (Refer to P.13)

Reversed connection of battery
polarity
Reversed connection warning LED
lights red
Internal fuse cuts off

Under sleep mode
Remote connector
does not work

Wiring problem

Unusual noises
when loads operate

Switching noisesuch as radio
Overvoltage
protection works
even battery

Solution
Check the DC input voltage and makesure the input voltage is within thespecification.
Check if ventilation is blocked or air
temperature is too high. Reduce the load
capacity or lower the air temperaturearound the DIASINE®.
Check whether the load capacity and theinstantaneous value exceed the rated
power of the DIASINE® or not.
Check whether the load wiring is shortcircuited or not.
Check that the wiring to the AC output
terminal is correct or not.
Internal parts of DIASINE® may bedamaged. Please contact the dealer.
Please replace the battery.
Please check the battery specifications
and increase the battery capacity.

Old version of GD Series

voltage is in thespecification* Effect may differ depending on environment or device.

If the error condition cannot be solved, please contact dealer.

20

Reconnect the correct polarity
Internal parts of DIASINE® may bedamaged. Please contact the dealer.
Press and hold the power button andsetting button for 3 seconds. If LED still
does not light, disconnect battery andreconnect after 5 seconds.
Check that the remote connector isproperly connected.
Try the methods* below to reduce noise:
1. Keep DIASINE® away from loads
2. Wire grounding terminal
3. Install appropriate line filter circuit
Check the serial number. The productswith the serial number first three digits
are W49 to W53 have the specifications
described in the user's manual Ver1.09E.

DENRYO CO., LTD.
28-5, Nishinippori 2Chome, Arakawa -ku,
Tokyo 116-0013, Japan
Phone : +81-3-3802-3671
FAX : +81-3-3802-2974
Email: info-en@denryo.com
www.denryo.com/en
DM-5519