EG4 3000 EHV-48 Configuration Learning Curves

[Capt Bill]

The EG4 3000 EVH-48 is listed for Off Grid application, and is not specifically designed to be used as I configured it as an Automatic Home Backup Power Supply wo Solar IN; (posted in thread titled "EV4-3000EHV-48 configed as Auto Home BackUp wo Solar"); ... but it has many configuration options, including networking units together for more amps in single phase, split phase, triple phase; and the EG4 options include what I successfully configured.

Here is My Learning Curve Story ... on the specific unit I received , configuring via the button pressing method (as I have not yet tried the computer program interface). Here's my record of initially confusing ... EG4 configuration challenges that I encountered during my set up and testing phase, that were successfully resolved ... by my Configuration Work Around Choices.

My Most Notable Challenge appeared when I was Testing for Automatic Grid sourced battery charging. When I Applied Grid Input to my EG4 unit after it was powering 120Vac circuits via just the battery, wo solar, to initiate a grid sourced battery charging cycle; ... I got the EG4 battery charger cycling on, then off, and on, and off, and on, ... repeatedly, in about 5 second intervals. My Learning Curve Lesson: I had configured "Power Saving" Enabled; and it needed to be Disable (its' default) to get the grid source battery charging to function properly. Changing my EG4 3000's #32 Bulk Charge Time setting from its default Auto setting, to 15 or 20 mins, ... may have also been a resolution factor. Got past that one, and it is working how I want now.

A Related Lesson from my dialog with Signature Solar Tech Support: I believe the EG4's Power Saving Mode only works when configuring for Solar Only for battery charging and AC loads. I was told by Signature Solar Tech Timothy ... "It is designed to work Only with Solar ONLY configured for Charging the Battery." When I ask about the EG4 6000XP's Power Saving Mode option; I got .. "the EG4 6000XP, with "Green Function mode," the inverter will shut off if the load output is less than 60 watts for more than 10 minutes. The system will need to be turned back on manually. In "Battery Eco mode," the system will switch from battery to grid bypass mode until the batteries have been recharged. ... I personally think there is room for EG4 improvements in their arena of power savings options.

Some Other (for lack of a better word) Quirks I encountered: To Set #9 from 50 Hz to the USA standard 60 Hz; ...I had to plug in and supply 120 Vac 60 Hz Input to the EG4; ... & then it automatically changed the default 50 Hz setting to 60 Hz. When trying to set that up via push buttons. that # 9 setting was otherwise stuck at 50 Hz, with no way to change it. ... To set the # 28 AC Output Mode to SIG for single phase 120vac output, when it was stuck on PAL for a parallel network / same story: I had to supply single phase 120 Vac to the EG4, and it then automatically changed the #28 setting to SIG for single phase. I believe Off Grid folks configuring the EG4 3000 (& possibly other model or brand All In Ones) for 120 Vac, 60Hz, Single Phase Output may initially need 120Vac Inverter Generator input to the All In One unit (NOT from an older non inverter type generator) to make these types of configuration changes.

I have two other area of work around insights from; Testing my EG4 3000EHV-48, & my dialogue with Signature Solar. I will add my lesson notes later when this thread gets some attention and comments.

Despite My Initially Challenging Learning Curves : I Do Like the EG4-3000EHV-48 for its evolution of abilities. I am thinking of the EG4 6000XP for my next LiFePO4 Battery Wagon Build.

... Happy Days, & Best Wishes for All Your Endeavors ... from Capt Bill

 

[Jmhai3]

I will be doing the same (UPS) with it setup on a cart to start, but I also got the renogy rover boost mppt to use my 2x130 watt folding solar panels in series as a backup charger when power is out. Will also test charging with my inverter generator (2500 watt) too.

Looks like you may be figuring out a lot I will run into when I get mine put together. I don’t plan grid tied full time just plugging in some times to keep it up and ready when the power does go out or if a storm is coming and chance of no power during the night running 2-refrigerators and a CPAP.
The furnace (oil) is planned for later (testing) and after adding more batteries. Wish I had a propane furnace it would be easier to set up than the pull of two motors for the old oil Lennox unit.

Good luck moving forward and please post more results and lessons learned.

 

[Kent86]

I've been using the EG4 3000 for about three months now to run power a 10 circuit reliance transfer switch which runs two refrigerators, a freezer, two air handlers and some lighting and receptacles. So far no issues and it has been going strong.

There was one minor issue but it was my fault. When I first set it up I wired in an extension cord to the AC input and plugged it into my Bluetti AC200 max, which was a mistake. The EG4 matches whatever frequency is on the AC input and since the Bluetti actually isn't a perfect 60.0 hertz I had flickering LED lights in my house. The Bluetti actually has a frequency of 60.1-60.3 hz. After installing a proper 30 amp 120 volt dedicated circuit back to my main service panel the problem resolved itself and all is good now, no flickering lights. The EG4 matched the utility frequency and is producing a perfect 60 hz, even if disconnected from utlity.

 

[beowulf]

So I just ordered this unit (instead of the $400 eg4 charger). My plan is to use it for now as an AC in to charge the battery during off peak hours, and eventually add solar inputs.

Can it do this.. and can I program it to only charge during 12am and 2pm and is there a way to feed battery details (from my DIY battery that has a chinese BMS) so that it stops charging once the battery is at 80%?

 

[Capt Bill]

So I just ordered this unit (instead of the $400 eg4 charger). My plan is to use it for now as an AC in to charge the battery during off peak hours, and eventually add solar inputs.

Can it do this.. and can I program it to only charge during 12am and 2pm and is there a way to feed battery details (from my DIY battery that has a chinese BMS) so that it stops charging once the battery is at 80%?

My LV2424s have setting for time related charging (which I have not used). Not sure if the EG4 has those setting (not gona study the manual, but do not remember seeing EG4 setting for that ???)

Here's some info that might help someone trying to configure and EG4 with DIY LiFePO4s for auto generator start and stop cycles ...

Quirks: : EG4 6000XP and related EG4-3000 EHV-48 Limitations on User Defined Battery settings

A Question I asked Signature Solar: Is there a "User Defined" battery setting
in the EG4- 6000XP ? .. for DIY type/ assembled LiFePO4 Battery Banks ?
... for Do It Yourself built from individual LifePO4 cells ...hooked up to their own independent BMS battery management system
for Battery Bank Connected to an EG4- 6000XP via Battery Cables Only. I was wondering after studying the 6000XP Manual and Battery compatibility list.

THE Answer I got Back was "set the Battery Type setting to Lead Acid, which will effectively act as a User-defined mode."
(for customer using a DIY built LiFePO4 Battery with its own separate BMS, with the EG4 6000XP.

... I later suggested that info might be included in the EG4-6000XP Manual, and/or Battery Compatibility List.

********* My Next Question re the EG4-3000 EHV-48 I have configured and am using on USER DEFINED for my DIY Built LiFePO4 configure with a separate JK BMS, and no networking wires. I NOTICED the Two Settings NOT Available to me in "User-Defined Mode", that I Definitely Want the option to USE: Setting #12 ... "Point back at Grid" ... for (Low voltage level that switches the load to utility if SOL or SUB has been set in Program 1). & Setting #13 ... " Point back to Battery" (Charged battery voltage level that switches the load to battery ..if (same as above). Both those setting have NOTE: "This is ONLY for AGM and FLD battery types.

MY Question: Could I select AGM or FLD as my battery type for a DIY built LiFePO4? ... and then have access to also using
the EG4-3000 EHV-48's setting #12 and #13 ... so I could have those set up option for my DIY LiFePO4 builds?

Answer Back was : "Of Course" (Yes) ...

If you experiment with that info. on LiFePO4s, ... Make sure Battery Equalization is Disabled (likely default?

... While these kind of quirks have work arounds, ... I hope there will be a Firmware Update to make the EG4 setting options BETTER,
... for all EG4 customers, including those using User Defined for their non server rack - DIY built LiFePO4s. ... MY Two Cents :+)

 

[beowulf]

That is interesting. Haven't done any setup yet, but strange you would have to select AGM or FLD instead of LFP (if that's an option)? for your DIY LFP with it's own BMS. I would agree and hope that there would be more info on this.
To answer the "does it have a time function" I found out the 3K does NOT. So.. I am hoping that I can shut it off (via an automated IoT switch) and turn it on.. and that doing that wont break the unit, or cause problems. OR.. automate on/off some breaker switch in between but I think that wont work right due to the battery can be charged but ALSO provide power through the EG4 inverter. I could maybe just use the inverter for charging (via AC during offpeak AND solar when I can add panels) and NOT use the inverter of the EG4.. and plug in my 48v to 24v inverter I bought (Victron) to charge my Ecoflow River 2 Pro (it can only handle 50v max, hence need to convert 48v to 24v to not overload the inputs on the ecoflow 750wh unit).

 

[SolarMant4]

The EG4 3000EVH-48 is listed for Off Grid application, and is not specifically designed to be used as I configured it as an Automatic Home Backup Power Supply wo Solar IN; (posted in thread titled "EV4-3000EHV-48 configed as Auto Home BackUp wo Solar"); ... but it has many configuration options, including networking units together for more amps in single phase, split phase, triple phase; and the EG4 options include what I successfully configured.

Here is My Learning Curve Story ... on the specific unit I received , configuring via the button pressing method (as I have not yet tried the computer program interface). Here's my record of initially confusing ... EG4 configuration challenges that I encountered during my set up and testing phase, that were successfully resolved ... by my Configuration Work Around Choices.

My Most Notable Challenge appeared when I was Testing for Automatic Grid sourced battery charging. When I Applied Grid Input to my EG4 unit after it was powering 120Vac circuits via just the battery, wo solar, to initiate a grid sourced battery charging cycle; ... I got the EG4 battery charger cycling on, then off, and on, and off, and on, ... repeatedly, in about 5 second intervals. My Learning Curve Lesson: I had configured "Power Saving" Enabled; and it needed to be Disable (its' default) to get the grid source battery charging to function properly. Changing my EG4 3000's #32 Bulk Charge Time setting from its default Auto setting, to 15 or 20 mins, ... may have also been a resolution factor. Got past that one, and it is working how I want now.

A Related Lesson from my dialog with Signature Solar Tech Support: I believe the EG4's Power Saving Mode only works when configuring for Solar Only for battery charging and AC loads. I was told by Signature Solar Tech Timothy ... "It is designed to work Only with Solar ONLY configured for Charging the Battery." When I ask about the EG4 6000XP's Power Saving Mode option; I got .. "the EG4 6000XP, with "Green Function mode," the inverter will shut off if the load output is less than 60 watts for more than 10 minutes. The system will need to be turned back on manually. In "Battery Eco mode," the system will switch from battery to grid bypass mode until the batteries have been recharged. ... I personally think there is room for EG4 improvements in their arena of power savings options.

Some Other (for lack of a better word) Quirks I encountered: To Set #9 from 50 Hz to the USA standard 60 Hz; ...I had to plug in and supply 120 Vac 60 Hz Input to the EG4; ... & then it automatically changed the default 50 Hz setting to 60 Hz. When trying to set that up via push buttons. that # 9 setting was otherwise stuck at 50 Hz, with no way to change it. ... To set the # 28 AC Output Mode to SIG for single phase 120vac output, when it was stuck on PAL for a parallel network / same story: I had to supply single phase 120 Vac to the EG4, and it then automatically changed the #28 setting to SIG for single phase. I believe Off Grid folks configuring the EG4 3000 (& possibly other model or brand All In Ones) for 120 Vac, 60Hz, Single Phase Output may initially need 120Vac Inverter Generator input to the All In One unit (NOT from an older non inverter type generator) to make these types of configuration changes.

I have two other area of work around insights from; Testing my EG4 3000EHV-48, & my dialogue with Signature Solar. I will add my lesson notes later when this thread gets some attention and comments.

Despite My Initially Challenging Learning Curves : I Do Like the EG4-3000EHV-48 for its evolution of abilities. I am thinking of the EG4 6000XP for my next LiFePO4 Battery Wagon Build.

... Happy Days, & Best Wishes for All Your Endeavors ... from Capt Bill

You can turn the inverter off after PV input is removed/switched and AC input is off. It will stay on and you can change the settings.

 

[BeachBill]

The EG4 3000EVH-48 is listed for Off Grid application, and is not specifically designed to be used as I configured it as an Automatic Home Backup Power Supply wo Solar IN; (posted in thread titled "EV4-3000EHV-48 configed as Auto Home BackUp wo Solar"); ... but it has many configuration options, including networking units together for more amps in single phase, split phase, triple phase; and the EG4 options include what I successfully configured.

Here is My Learning Curve Story ... on the specific unit I received , configuring via the button pressing method (as I have not yet tried the computer program interface). Here's my record of initially confusing ... EG4 configuration challenges that I encountered during my set up and testing phase, that were successfully resolved ... by my Configuration Work Around Choices.

My Most Notable Challenge appeared when I was Testing for Automatic Grid sourced battery charging. When I Applied Grid Input to my EG4 unit after it was powering 120Vac circuits via just the battery, wo solar, to initiate a grid sourced battery charging cycle; ... I got the EG4 battery charger cycling on, then off, and on, and off, and on, ... repeatedly, in about 5 second intervals. My Learning Curve Lesson: I had configured "Power Saving" Enabled; and it needed to be Disable (its' default) to get the grid source battery charging to function properly. Changing my EG4 3000's #32 Bulk Charge Time setting from its default Auto setting, to 15 or 20 mins, ... may have also been a resolution factor. Got past that one, and it is working how I want now.

A Related Lesson from my dialog with Signature Solar Tech Support: I believe the EG4's Power Saving Mode only works when configuring for Solar Only for battery charging and AC loads. I was told by Signature Solar Tech Timothy ... "It is designed to work Only with Solar ONLY configured for Charging the Battery." When I ask about the EG4 6000XP's Power Saving Mode option; I got .. "the EG4 6000XP, with "Green Function mode," the inverter will shut off if the load output is less than 60 watts for more than 10 minutes. The system will need to be turned back on manually. In "Battery Eco mode," the system will switch from battery to grid bypass mode until the batteries have been recharged. ... I personally think there is room for EG4 improvements in their arena of power savings options.

Some Other (for lack of a better word) Quirks I encountered: To Set #9 from 50 Hz to the USA standard 60 Hz; ...I had to plug in and supply 120 Vac 60 Hz Input to the EG4; ... & then it automatically changed the default 50 Hz setting to 60 Hz. When trying to set that up via push buttons. that # 9 setting was otherwise stuck at 50 Hz, with no way to change it. ... To set the # 28 AC Output Mode to SIG for single phase 120vac output, when it was stuck on PAL for a parallel network / same story: I had to supply single phase 120 Vac to the EG4, and it then automatically changed the #28 setting to SIG for single phase. I believe Off Grid folks configuring the EG4 3000 (& possibly other model or brand All In Ones) for 120 Vac, 60Hz, Single Phase Output may initially need 120Vac Inverter Generator input to the All In One unit (NOT from an older non inverter type generator) to make these types of configuration changes.

I have two other area of work around insights from; Testing my EG4 3000EHV-48, & my dialogue with Signature Solar. I will add my lesson notes later when this thread gets some attention and comments.

Despite My Initially Challenging Learning Curves : I Do Like the EG4-3000EHV-48 for its evolution of abilities. I am thinking of the EG4 6000XP for my next LiFePO4 Battery Wagon Build.

... Happy Days, & Best Wishes for All Your Endeavors ... from Capt Bill

Thanks Capt Bill for the wiring information. Questions: Why isn't input voltage being shown on panel? How can I determine if my battery is being charged? I have followed your advice on program settings as best I can. My settings configurations are:
DESCRIPTION DEFAULT Capt Bill CHNG
OUTPUT OUTPUT SOURCE PRIORITY 01 UB1
MAXIMUM CHARGING CURRENT 02 60
AC INPUT VOLTAGE RANGE 03 APL 03 APL
POWER SAVINGS MODE 04 5D5 04 5D5
BATTERY TYPE 05 AGN 05 FLD
AUTO RESTART ON OVERLOAD 06 LFD 06 LFE
AUTO RESTART ON OVERTEMP 07 EFD 06 EFE
OUTPUT VOLTAGE 08 120
OUTPUT FREQUENCY 09 50 09 60
LOAD BYPASS 10 MNL 10 AEO
MAX UTIL CHARGE CURRENT 11 30A 11 28A
POINT BACK TO UTILITY 12 46
POINT BACK TO BATTERY 13 FUL
CHARGER SOURCE PRIORITY 16 SNU 16 CUE
BUZZER MODE 18 ND4
AUTO DISPLAY RETURN 19 ESP
BACK LIGHT CTRL 20 LON
LOAD BYPASS 23 BYD 23 BYE
MODBUS ID 25 NOD 001
BULK CHARGING VOLTAGE 26 CU 56.4
FLOATING CHARGING VOLTAGE 27 FLU 54.0
AC OUTPUT MODE 28 SIG
LOW DC CUT-OFF VOLTAGE 29 COU 42.0
PV JUDGE CONDITION 30 ALL
BULK CHARGING TIME 32 AUE 32 15/20
BATTERY EQUALIZATION 33 ED5
BATTERY EQUALIZED VOLTAGE 34 EU 58.4
BATTERY EQUALIZED TIME 35 60
BATTERY EQUALIZED TIMEOUT 36 120
EQUALIZATION INTERVAL 37 30D
EQUALIZATION ACTIVATED IMMED 39 AD5
SETTING SOC=>UTILITY 43 050
SETTING SOC=>BATTERY 44 095
SOC LOW DC CUTOFF 45 020

 

[Drafterdude]

My LV2424s have setting for time related charging (which I have not used). Not sure if the EG4 has those setting (not gona study the manual, but do not remember seeing EG4 setting for that ???)

Here's some info that might help someone trying to configure and EG4 with DIY LiFePO4s for auto generator start and stop cycles ...

Quirks: : EG4 6000XP and related EG4-3000 EHV-48 Limitations on User Defined Battery settings

A Question I asked Signature Solar: Is there a "User Defined" battery setting
in the EG4- 6000XP ? .. for DIY type/ assembled LiFePO4 Battery Banks ?
... for Do It Yourself built from individual LifePO4 cells ...hooked up to their own independent BMS battery management system
for Battery Bank Connected to an EG4- 6000XP via Battery Cables Only. I was wondering after studying the 6000XP Manual and Battery compatibility list.

THE Answer I got Back was "set the Battery Type setting to Lead Acid, which will effectively act as a User-defined mode."
(for customer using a DIY built LiFePO4 Battery with its own separate BMS, with the EG4 6000XP.

... I later suggested that info might be included in the EG4-6000XP Manual, and/or Battery Compatibility List.

********* My Next Question re the EG4-3000 EHV-48 I have configured and am using on USER DEFINED for my DIY Built LiFePO4 configure with a separate JK BMS, and no networking wires. I NOTICED the Two Settings NOT Available to me in "User-Defined Mode", that I Definitely Want the option to USE: Setting #12 ... "Point back at Grid" ... for (Low voltage level that switches the load to utility if SOL or SUB has been set in Program 1). & Setting #13 ... " Point back to Battery" (Charged battery voltage level that switches the load to battery ..if (same as above). Both those setting have NOTE: "This is ONLY for AGM and FLD battery types.

MY Question: Could I select AGM or FLD as my battery type for a DIY built LiFePO4? ... and then have access to also using
the EG4-3000 EHV-48's setting #12 and #13 ... so I could have those set up option for my DIY LiFePO4 builds?

Answer Back was : "Of Course" (Yes) ...

If you experiment with that info. on LiFePO4s, ... Make sure Battery Equalization is Disabled (likely default?

... While these kind of quirks have work arounds, ... I hope there will be a Firmware Update to make the EG4 setting options BETTER,
... for all EG4 customers, including those using User Defined for their non server rack - DIY built LiFePO4s. ... MY Two Cents :+)

I have been wondering and looking for this info..DIY batteries and the EG4v settings.Thanks

 

[Capt Bill]

Thanks Capt Bill for the wiring information. Questions: Why isn't input voltage being shown on panel? How can I determine if my battery is being charged? I have followed your advice on program settings as best I can. My settings configurations are:
DESCRIPTION DEFAULT Capt Bill CHNG
OUTPUT OUTPUT SOURCE PRIORITY 01 UB1
MAXIMUM CHARGING CURRENT 02 60
AC INPUT VOLTAGE RANGE 03 APL 03 APL
POWER SAVINGS MODE 04 5D5 04 5D5
BATTERY TYPE 05 AGN 05 FLD
AUTO RESTART ON OVERLOAD 06 LFD 06 LFE
AUTO RESTART ON OVERTEMP 07 EFD 06 EFE
OUTPUT VOLTAGE 08 120
OUTPUT FREQUENCY 09 50 09 60
LOAD BYPASS 10 MNL 10 AEO
MAX UTIL CHARGE CURRENT 11 30A 11 28A
POINT BACK TO UTILITY 12 46
POINT BACK TO BATTERY 13 FUL
CHARGER SOURCE PRIORITY 16 SNU 16 CUE
BUZZER MODE 18 ND4
AUTO DISPLAY RETURN 19 ESP
BACK LIGHT CTRL 20 LON
LOAD BYPASS 23 BYD 23 BYE
MODBUS ID 25 NOD 001
BULK CHARGING VOLTAGE 26 CU 56.4
FLOATING CHARGING VOLTAGE 27 FLU 54.0
AC OUTPUT MODE 28 SIG
LOW DC CUT-OFF VOLTAGE 29 COU 42.0
PV JUDGE CONDITION 30 ALL
BULK CHARGING TIME 32 AUE 32 15/20
BATTERY EQUALIZATION 33 ED5
BATTERY EQUALIZED VOLTAGE 34 EU 58.4
BATTERY EQUALIZED TIME 35 60
BATTERY EQUALIZED TIMEOUT 36 120
EQUALIZATION INTERVAL 37 30D
EQUALIZATION ACTIVATED IMMED 39 AD5
SETTING SOC=>UTILITY 43 050
SETTING SOC=>BATTERY 44 095
SOC LOW DC CUTOFF 45 020

Re wanting input voltage to battery to show on screen. I think you could find that by toggling through EG4's LCD screen that shows a variety of info . If you like one info screen best, you can configure that screen to show first (or go back to a default 1st choice info screen ... My two cents

 

[Capt Bill]

So I just ordered this unit (instead of the $400 eg4 charger). My plan is to use it for now as an AC in to charge the battery during off peak hours, and eventually add solar inputs.
... is there a way to feed battery details (from my DIY battery that has a chinese BMS) so that it stops charging once the battery is at 80%?

Re desire to charge DIY Battery bank to 80% SOC. ... Going by memory, ... I think your options include setting bulk absorption voltage, then float voltage. I think you would have to pick a voltage that reflects what you want. Also; for Absorption charge, there is a time setting set as "auto", that can be changed from 1 minute to maybe 200 mins??? (which I set at 15 or 20 mins). ... My two cents

 

[Aldricoak]

Can anyone tell me wjat setting #46 does on the EG4 3000EHV 48?

 

[aussiesam]

Some Other (for lack of a better word) Quirks I encountered: To Set #9 from 50 Hz to the USA standard 60 Hz; ...I had to plug in and supply 120 Vac 60 Hz Input to the EG4; ... & then it automatically changed the default 50 Hz setting to 60 Hz. When trying to set that up via push buttons. that # 9 setting was otherwise stuck at 50 Hz, with no way to change it. ... To set the # 28 AC Output Mode to SIG for single phase 120vac output, when it was stuck on PAL for a parallel network / same story: I had to supply single phase 120 Vac to the EG4, and it then automatically changed the #28 setting to SIG for single phase. I believe Off Grid folks configuring the EG4 3000 (& possibly other model or brand All In Ones) for 120 Vac, 60Hz, Single Phase Output may initially need 120Vac Inverter Generator input to the All In One unit (NOT from an older non inverter type generator) to make these types of configuration changes.

I'm trying to find more conversations about this inverter and I found your thread. I received mine in May 2024 and I was able to change the frequency and set it to single phase without connecting it to grid. I believe the requirement was to have 2 sources of power when changing these types of settings and have the AC inverter set to "off". After changing you do a power cycle, so in my case the power sources were solar and battery.

I'm considering using power savings mode, but I'm wondering at what load (how many watts) it shuts down and if it turns on automatically again once the sun comes up.. I'm guessing it should.. Also wondering if you guys updated the software, I've been hesitant to do that after reading some stories about people bricking their units.. So far its doing alright.. aside from some fan related coil whine on low loads, I'm liking it.

 

[Mike15]

I've been using the EG4 3000 for about three months now to run power a 10 circuit reliance transfer switch which runs two refrigerators, a freezer, two air handlers and some lighting and receptacles. So far no issues and it has been going strong.

There was one minor issue but it was my fault. When I first set it up I wired in an extension cord to the AC input and plugged it into my Bluetti AC200 max, which was a mistake. The EG4 matches whatever frequency is on the AC input and since the Bluetti actually isn't a perfect 60.0 hertz I had flickering LED lights in my house. The Bluetti actually has a frequency of 60.1-60.3 hz. After installing a proper 30 amp 120 volt dedicated circuit back to my main service panel the problem resolved itself and all is good now, no flickering lights. The EG4 matched the utility frequency and is producing a perfect 60 hz, even if disconnected from utlity.

I’d love to see how you wired your neutral and handled neutral ground bond? I’m wanting to use mine with solar and AC input back up with my 6 circuit reliance but I’m trying to verify I won’t end up with neutral loops. I want to use it with the grid up and when it fails. Sounds like i will definitely need to remove N-G bond screw as reliance Protran 2 doesn’t have a separated neutral from main panel, so N-G bond remains at main service panel.

 

[Kent86]

I’d love to see how you wired your neutral and handled neutral ground bond? I’m wanting to use mine with solar and AC input back up with my 6 circuit reliance but I’m trying to verify I won’t end up with neutral loops. I want to use it with the grid up and when it fails. Sounds like i will definitely need to remove N-G bond screw as reliance Protran 2 doesn’t have a separated neutral from main panel, so N-G bond remains at main service panel.

Hi Mike, The EG4 3000 has a relay that can detect the neutral ground bond. The way mine was set up is I had a 10-3 romex going to a 30 amp two pole disconnect circuit breaker, then to the 10 circuit transfer switch. I didn't bond the neutral to ground at the inverter, disconnect or 10 circuit transfer since the system is already bonded at the service and the ground and neutral are connected straight through to the main service. In my transfer switch, the inverter neutral connects to a white wire that runs directly to the main service panel neutral bar, where the bond occurs.

I would keep the bond in the main panel, the transfer switch is only switching the "hot" conductors between utility and the inverter, there is no neutral switching in a transfer switch. If your transfer switch did switch the neutrals from different supplies, that would be a different conversation.

 

[aussiesam]

Hi Mike, The EG4 3000 has a relay that can detect the neutral ground bond. The way mine was set up is I had a 10-3 romex going to a 30 amp two pole disconnect circuit breaker, then to the 10 circuit transfer switch. I didn't bond the neutral to ground at the inverter, disconnect or 10 circuit transfer since the system is already bonded at the service and the ground and neutral are connected straight through to the main service. In my transfer switch, the inverter neutral connects to a white wire that runs directly to the main service panel neutral bar, where the bond occurs.

I would keep the bond in the main panel, the transfer switch is only switching the "hot" conductors between utility and the inverter, there is no neutral switching in a transfer switch. If your transfer switch did switch the neutrals from different supplies, that would be a different conversation.

Just wanted to add that I purchased mine in May from Signature solar and it didn't have the G-N bond, even though they claim that they stopped removing the screw from these units, this information is incorrect and you won't know which unit you will receive, so if you are using it in an off-grid scenario, you need to test it yourself.

 

[Kent86]

According to Signature Solar they stopped shipping units with the neutral/ground bonding screw last fall. They also had confirmed with me that a relay exists in the inverter that will bond neutral/ground if there is no AC input (unit is only running on battery/solar), and when AC input is detected with a bond between ground and neutral the internal relay will open, therefore not creating a second bond.

Of course, the best approach is to actually test it with a meter and verify the state of the unit. I retired this inverter when I put a 6000xp in it's place but I still have it (with plans to use it on another project) and if can find the time over the next few days I may dust it off and do some testing, as I never actually tested this internal bonding relay to see if it would bond itself without AC input

 

[aussiesam]

According to Signature Solar they stopped shipping units with the neutral/ground bonding screw last fall. They also had confirmed with me that a relay exists in the inverter that will bond neutral/ground if there is no AC input (unit is only running on battery/solar), and when AC input is detected with a bond between ground and neutral the internal relay will open, therefore not creating a second bond.

Of course, the best approach is to actually test it with a meter and verify the state of the unit. I retired this inverter when I put a 6000xp in it's place but I still have it (with plans to use it on another project) and if can find the time over the next few days I may dust it off and do some testing, as I never actually tested this internal bonding relay to see if it would bond itself without AC input

When I spoke to them in April/May they told me they stopped removing the screw as the relay existed. Relay only works if the screw is in place, with the screw removed there is never a bond. I tested mine off grid and what I can tell you is that there was no G-N bond on the AC output, so I was forced to create one myself.

My point is, don't take their word for it, because it seems that it all depends on who you speak to and their communication isn't consistent or reliable.

 

[EG4TechSolutionsTeam]

Just wanted to add that I purchased mine in May from Signature solar and it didn't have the G-N bond, even though they claim that they stopped removing the screw from these units, this information is incorrect and you won't know which unit you will receive, so if you are using it in an off-grid scenario, you need to test it yourself.

Feel free to send me a DM and I can assist with getting a Neutral-Ground bond screw sent out.

 

[bushamus]

I’d love to see how you wired your neutral and handled neutral ground bond? I’m wanting to use mine with solar and AC input back up with my 6 circuit reliance but I’m trying to verify I won’t end up with neutral loops. I want to use it with the grid up and when it fails. Sounds like i will definitely need to remove N-G bond screw as reliance Protran 2 doesn’t have a separated neutral from main panel, so N-G bond remains at main service panel.

HI MIke. About your neutral loop question: I have my system set up as battery back up only with no solar. I'm sending inverter power out to a transfer switch to power some house circuits. I was concerned about a double path of my neutral and grounds (neutral and ground loop), since I have a dedicated 30A grid circuit going to my inverter AC input. Basically, my inverters' neutral and ground was connected to my house subpanel neutral and ground buss bar twice: One coming from the transfer switch and the other coming from the 30A dedicated circuit.

What I did to eliminate this is to disconnect the neutral and ground wires between the inverter and transfer switch. Everything is bonded and the system is connected to a single neutral-ground bond (At the main panel). System runs great.

 

[Operation DeltaPro]

Hi Mike, The EG4 3000 has a relay that can detect the neutral ground bond. The way mine was set up is I had a 10-3 romex going to a 30 amp two pole disconnect circuit breaker, then to the 10 circuit transfer switch. I didn't bond the neutral to ground at the inverter, disconnect or 10 circuit transfer since the system is already bonded at the service and the ground and neutral are connected straight through to the main service. In my transfer switch, the inverter neutral connects to a white wire that runs directly to the main service panel neutral bar, where the bond occurs.

I would keep the bond in the main panel, the transfer switch is only switching the "hot" conductors between utility and the inverter, there is no neutral switching in a transfer switch. If your transfer switch did switch the neutrals from different supplies, that would be a different conversation.

Hey Mike,

I have the same setup as Kent...if I understand correctly, since I already have a neutral bond in the main panel which my Pro Trans 6-circuit transfer switch is already connected to that should resolve the "open-ground" or am I missing something and need to add a jumper between the In/Out neutral in the EG4 3000w?

My system is also for emergency power...

 

[Capt Bill]

Thanks Capt Bill for the wiring information. Questions: Why isn't input voltage being shown on panel? How can I determine if my battery is being charged? I have followed your advice on program settings as best I can. My settings configurations are:
DESCRIPTION DEFAULT Capt Bill CHNG
OUTPUT OUTPUT SOURCE PRIORITY 01 UB1
MAXIMUM CHARGING CURRENT 02 60
AC INPUT VOLTAGE RANGE 03 APL 03 APL
POWER SAVINGS MODE 04 5D5 04 5D5
BATTERY TYPE 05 AGN 05 FLD
AUTO RESTART ON OVERLOAD 06 LFD 06 LFE
AUTO RESTART ON OVERTEMP 07 EFD 06 EFE
OUTPUT VOLTAGE 08 120
OUTPUT FREQUENCY 09 50 09 60
LOAD BYPASS 10 MNL 10 AEO
MAX UTIL CHARGE CURRENT 11 30A 11 28A
POINT BACK TO UTILITY 12 46
POINT BACK TO BATTERY 13 FUL
CHARGER SOURCE PRIORITY 16 SNU 16 CUE
BUZZER MODE 18 ND4
AUTO DISPLAY RETURN 19 ESP
BACK LIGHT CTRL 20 LON
LOAD BYPASS 23 BYD 23 BYE
MODBUS ID 25 NOD 001
BULK CHARGING VOLTAGE 26 CU 56.4
FLOATING CHARGING VOLTAGE 27 FLU 54.0
AC OUTPUT MODE 28 SIG
LOW DC CUT-OFF VOLTAGE 29 COU 42.0
PV JUDGE CONDITION 30 ALL
BULK CHARGING TIME 32 AUE 32 15/20
BATTERY EQUALIZATION 33 ED5
BATTERY EQUALIZED VOLTAGE 34 EU 58.4
BATTERY EQUALIZED TIME 35 60
BATTERY EQUALIZED TIMEOUT 36 120
EQUALIZATION INTERVAL 37 30D
EQUALIZATION ACTIVATED IMMED 39 AD5
SETTING SOC=>UTILITY 43 050
SETTING SOC=>BATTERY 44 095
SOC LOW DC CUTOFF 45 020

WOW, ... I am working on a bunch of other priorities here after returning from my Costa Rica deluxe camping Casa to my main Northern California Home Base. I have a new 10000 Watt SRNE All In One Inverter I want to configure on a 48 volt battery wagon, and for off grid home power. I am impressed with its' abilities to put out 10KW of power @ 240 vac split phase at 60 amps on each leg from just one unit; at a delivered cost via Borick on Alibaba for just over $1K (just before recent Tariffs BS phase). Re the EG4 -3000 or any other All In One Inverter: To understand more about the options of all those the settings, I highly recommend that you print the full settings section of pdf manual on full size sheets of office paper (maybe make two copies), and write notes on setting chosen, and anything important you are learning while testing them out. ... I believe you will learn way more about you equipment that way, because I did. And if you really need tech support, your notes will help you in asking high quality questions with details needed to get good tech support answers back. That all have for you at present. I do not have time right now to review your details as requested. Maybe later ? & ... Good Luck. ;+)