Color Control doesn't see 5th Pylontech battery! Help pls! :)

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victronication asked Apr 18, '24

Color Control doesn't see 5th Pylontech battery! Help pls! :)

Background: Hi folks. I have a small off-grid set up based around the Victron Multiplus 48/3000. Up until recently the battery array was 4 x Pylontech US2000s. Last week my electrician added a Pylontech US5000 to the set up as the new master battery, to add additional capacity, bringing the total of batteries to 5.

The problem: as per the Color Control screenshot below, the Victron will only see 4 batteries, NOT 5.

I have asked the off grid system supplier and my electrician and no one seems to know why this is the case. Help me Obi Wan Kenobi, you're my only hope! Thanks so much in advance.

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Additional background:

New Pylontech US5000 set up as master battery

4 x Pylontech US2000s as slave batteries

The board including a Sunnyboy PV inverter, and the Multiplus:

Multiplus-II CCGX Color Control VictronConnect Pylontech battery

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Alexandra ♦ commented · Apr 18 at 10:06 AM

@Victronication

Did you set any of the dips?

Also the comms cable. Did you just use the original one you had from the bank? They are different between 5000 and 2000.

(Might need to remove pin 3. Gnd.)

You can test and see if it picks up just the 5000 by itself.

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victronication Alexandra ♦ commented · Apr 18 at 10:12 AM

What configuration should they be in in your option?

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victronication victronication commented · Apr 18 at 10:18 AM

I ask because they are in CAN configuration and I was told by the supplier that dips should be switched to 'off'. So no, I haven't touched the dips. Comms cable is not the original one from the bank. The electrician made up a new one from scratch.

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Alexandra ♦ victronication commented · Apr 19 at 08:58 AM

Just checking. Sometimes the dips get bumped.

Does the us5000 register by itself on the GX?

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victronication Alexandra ♦ commented · Apr 20 at 12:21 PM

I am getting over 150 amps so between the 4 batteries that tells me that all 5 batteries are likely being registered by the system. However, no, the system only sees 4 batteries, and the likely culprit is the US5000.

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duivert victronication commented · Apr 20 at 12:40 PM

Did you changed the CAN bus cables already with ones that have the correct pinout?

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Alexandra ♦ duivert commented · Apr 20 at 05:18 PM

Test with just the 5000. No other batteries. If it registers build from there.

US2000 discharge usually at 25A so 4 give 100A. Not sure how you would see 150A if only the us2000 registered.

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Answer 1 · 2024-04-18T12:18:53Z

alexandra is right:

from the victron pylontech setup page:

Type A cable

The Victron VE.Can to CAN-bus BMS type A Cable, part number ASS030710018 is used for connection with US2000C / US3000C / UP5000 / US5000 / US5000B / Force-L.

Type B cable

The Victron VE.Can to CAN-bus BMS type B Cable, part number ASS030720018 is used for connection with US2000 / US3000 / UP2500;

Note you cannot use the comms cable supplied by Pylontech for this connection between the master battery and the GX device.

see:https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

and here is the pinout for the cables:

3.1 Type A

Function	Victron VE.Can side	Battery side
GND	Pin 3	Pin 6
CAN-L	Pin 8	Pin 5
CAN-H	Pin 7	Pin 4

3.2 Type B

Function	Victron VE.Can side	Battery side
GND	Pin 3	Pin 2
CAN-L	Pin 8	Pin 5
CAN-H	Pin 7	Pin 4

see:https://www.victronenergy.com/live/battery_compatibility:can-bus_bms-cable

so you will need a cross cable between the 5000 and the 2000's

Answer 2 · 2024-04-18T12:21:19Z

jkkm answered · Apr 18 at 12:21 PM

I would check the interlink cables i.e. pink/blue/yellow/white. If one is not showing up it would be related to that. I have heard this happen where a cable is faulty.

Check this link as well for the CAN cable pin outs if you want to make one up

VE.Can to CAN-bus BMS cables manual [Victron Energy]

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Answer 3 · 2024-04-18T19:00:59Z

kevgermany answered · Apr 18 at 07:00 PM

Looks like an interlink cable is missing a connection at one end. You have two empty top sockets, should only be the one on the US5000 empty.

@Alexandra please correct me if I'm wrong.

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duivert commented · Apr 18 at 07:36 PM

the cabling sequence is correct from pink to yellow to bleu to white if you look close

5000 top is empty, last 2000 bottom is empty

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kevgermany ♦♦ duivert commented · Apr 18 at 08:39 PM

Thanks. The upside down pic threw me.

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