Pro Power Onboard Relay Location?

[RLXXI]

Wiring search done and confirmed, only a fused circuit directly to the inverter.

Sponsored

 

[jpatt2020]

I was looking at the wiring diagrams last night and all I saw was a fuse leading straight to the inverter. Which typically means any relay would be integral.

Got interrupted before I could finish looking, I'll dig into this evening some more to be certain.

Did you ever look into this any further? Where is the 9.6 inverter located? Under the bed? Thanks for the help!

 

[TaxmanHog]

Did you ever look into this any further? Where is the 9.6 inverter located? Under the bed? Thanks for the help!

Actually it is a 7.2KW inverter, and it's under the cargo bed of the truck

 

[jpatt2020]

Actually it is a 7.2KW inverter, and it's under the cargo bed of the truck

I have the 9.6kW Pro Power option on mine, so assuming the inverter is 9.6 if you have that option.

 

[bmwhitetx]

I have the 9.6kW Pro Power option on mine, so assuming the inverter is 9.6 if you have that option.

There are two inverters with the 9.6 kW option. A 2.4 kW under the frunk that everyone gets and a 7.2 kW under the bed that only those with the 9.6 kW option gets. The 7.2 powers the bed outlet only while the 2.4 powers cabin and frunk. On the 2.4 kW only option it powers cabin, frunk and a couple of outlets in the bed.

7.2 kW + 2.4 kW = 9.6 kW

 

[jpatt2020]

There are two inverters with the 9.6 kW option. A 2.4 kW under the frunk that everyone gets and a 7.2 kW under the bed that only those with the 9.6 kW option gets. The 7.2 powers the bed outlet only while the 2.4 powers cabin and frunk. On the 2.4 kW only option it powers cabin, frunk and a couple of outlets in the bed.

7.2 kW + 2.4 kW = 9.6 kW

Understood, did not realize that.

 

[bmwhitetx]

Understood, did not realize that.

You never mentioned why you were interested in this. Based on your 1st post, I assume you don't like the fact that the bed and/or frunk have to manually be turned on each time and (here's the assumption) was possibly looking for a way around that by tapping into a relay (that doesn't exist)?

 

[RLXXI]

Did you ever look into this any further? Where is the 9.6 inverter located? Under the bed? Thanks for the help!

In my last post I followed up, and there's two inverters as mentioned.

 

[jpatt2020]

You never mentioned why you were interested in this. Based on your 1st post, I assume you don't like the fact that the bed and/or frunk have to manually be turned on each time and (here's the assumption) was possibly looking for a way around that by tapping into a relay (that doesn't exist)?

That's correct. Actually for two reasons. I use the pro power when camping off grid in winter. Sometimes I use a 6kw 240V space heater. Turning the inverter on with the heater plugged in will arc a relay, and over time was worried it could prematurely fail it, and if the relays aren't replaceable, then maybe I'll turn the inverter on, then the heater, rather than using the truck as a switch. Also, would be nice if all the outlets were always powered on, but now I understand that since there are two inverters, most of the time the 7.2kw inverter is not powered on, which I'm good with.

 

[chl]

If you are interested in a bit more detail...

My understanding is the 7.2kW inverter is actually a dual inverter, that is, two 120V inverters that are synchronized to provide the 240V split-phase output, in one physical box.

When you use the 7.2kW PPOB, your display screen will show you how much power is being used by each of the inverters. That can be used to balance the loads if you are using the output to provide backup to you house for example by moving circuits around in your transfer switch. When loads are exactly balance, no net current flows on the neutral and therefore less energy is lost to heat caused by neutral wire resistance, among other advantages.

The other inverter that provides the 2.4kW 120V output is not synchronized with the 7.2kW so you cannot easily combine it with either leg of the 7.2kW output - this was confirmed by someone who looked at the wave forms and reported it in another thread. So if you try to combine them, there would be trouble - over and under voltages due to the wave forms being out of synch.

To get the full 240V, 40A, 9.6kW output the HIS (home integration system provides) provides you would need to connect to the HV battery 400V DC and pass it through an external inverter. The Ford authorized HIS uses a Delta inverter and other circuitry as well as Ford proprietary software to control the HIS.

There is one non-Ford authorized home backup system that seems to work with the Mach-e and Lightning from Sigenergy:

 

[chl]

PS: for my needs a $400 transfer switch (GENERAC 6853 for example) powered by the PPOB 240V 30A output is adequate for emergency backup power. The high cost of these V2H systems to get an extra 10A (2.4kW) just isn't worth it to me, but opinions will vary.

 

[jpatt2020]

All interesting info guys! Thanks for sharing. Just trying to learn more about the truck as I own it. It’s a very versatile vehicle, and does so much more than most people realize. 7.2kW is plenty for me. I’d never have a need for more than that. I’ve powered my house with my central AC on from the 7.2 without issue.

 

[Grumpy2]

Turning the inverter on with the heater plugged in will arc a relay,

I find it amazing that three transistors working under full wattage changes DC to AC and will last 100k miles. Your concerned about other transistors, but you might not have a worry about them.

 

[jpatt2020]

I find it amazing that three transistors working under full wattage changes DC to AC and will last 100k miles. Your concerned about other transistors, but you might not have a worry about them.

I'm probably just being overly concerned. Problem with being an engineer--we always overthink everything!

 

[RLXXI]

There are two inverters with the 9.6 kW option. A 2.4 kW under the frunk that everyone gets and a 7.2 kW under the bed that only those with the 9.6 kW option gets. The 7.2 powers the bed outlet only while the 2.4 powers cabin and frunk. On the 2.4 kW only option it powers cabin, frunk and a couple of outlets in the bed.

7.2 kW + 2.4 kW = 9.6 kW

They must have changed it for the 25ym as both my inverters are under the bed.

Sponsored