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MIN XH/XA and SYN 50-XH-10 Application Notes

MIN XH/XA storage system can work as on-grid storage system for maximum system self-consumption, and it can also provide backup function when there is blackout The system should work with a backup box SYN 50-XH-10 when use the backup function. As below, it will explain some details when MIN XH/XA storage system work with SYN 50-XH-10 for backup.

1.Only one MIN 2500-6000TL-XH in single phase grid system

Benefit: whole house backup, no need to install meter, there already one single phase meter integrated in SYN 50-XH-10.

Monitoring: can see whole system production and self-consumption.

Work mode: Default, no need to do any special setting.

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Make sure the right connection at the SYN 50-XH-10 connection points, so the system can work normally.

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This CN8 is the RS485 communication port between MIN XH/XA Growatt inverter to SYN 50-XH-10.

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Note:

1. If the house consumption is over the storage system can support, then only can provide partial backup.

2. The SYN max. continuous input current 50A, if the whole house consumption is over 50A, then the SYN can only provide partial backup as below picture.

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2.One MIN XH work in a three phase grid system

If MIN XH Growatt inverter work in a three phase grid, then need a three phase meter (both direct connection and CT meter are OK), the system connection is as below.

Monitoring: can see whole system production and self-consumption information on Growatt Portal.

Work mode: Default, no need any special setting.

Growatt inverters

Note: Take outthe default meter communication cable terminal from SYN 50-XH-10, and then connect the new meter communication cable to the same port (Meter2) according to the RS485 PIN definition. The integrated single phase meter not used anymore in this case.

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3.MIN XH or MIN XA work with an existing solar system in single phase system

When MIN XH or MIN XA work with an existing solar system in single phase system, then need a three phase CT meter, the system connection is as below.

Monitoring: can see whole system production and self-consumption information on Growatt Portal.

Growatt inverters

Work mode: System Retrofit+Single Phase, need to do the right setting in Advance Setting page to make system working normally.

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Note:

1. CT1 detects the grid connection point power flow, CT3 detect the other inverter production.

2. Pull out this meter communication cable terminal from SYN 50-XH-10, and then connect the new meter communication cable to the same port according to the RS485 PIN definition. The integrated single phase meter not used anymore.

3. The other inverter AC output should not connect direct to SYN 50-XH-10, but connect to the grid. The CT1 must can detect the whole system export and import power.

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4. Summary

1. Only when one MIN XH work in single phase grid system, the SYN 50-XH-10 integrated single phase meter can be used, so no need to install the meter. For other special application scenarios, always need install a three phase meter.

2. Growatt Inverter communicate with SYN 50-XH-10 via CN8 RS485, SYN 50-XH-10 communicate with the new installed Meter via CN7 Meter 2.

3. SYN 50-XH-10 can only provide backup for single phase load, when work on three phase grid, suggest to us three phase solution instead.

4. Pay attention of the CT and meter direction.

5. Enable the Backup Box function of MIN XH/XA inverter in Advance setting page to make the backup function work normally

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6.Below table are the component list for work with different situations.

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