Portable energy storage relay wiring diagram

How do I use ESS battery life?

Connect to AC when available, keep batteries charged: Use ESS Assistant and select the “Keep batteries charged” mode. • Not available in the ESS System yet, but it will be implemented. The ESS BatteryLife feature will make sure that the batteries are not unnecessarily cycled around a low SoC.

When is the ESS relay test performed?

The relay test will be performed once either the battery voltage has been recharged above 14/28/56 volt, or when the battery has been recharged to above 20% SOC. To check if a system is in this state, see the ESS Relay test entry in the Advanced submenu of the Multi/Quattro entry in the device list. It will show either Pending, or Completed.

Why is battery discharge not allowed in ESS?

Reasons for not allowing discharge: BMS blocks discharge (DCL=0), or battery SoC level is below the 'minimum SOC' setting in ESS, when SoC is at least 3% above the set level, discharge is allowed again. A grid code is in use that requires the enabling of battery discharging by aux-inputs.