Operating Manual

Installation, assembly and commissioning for
the first time
Version 1.1 Page 73 of 92
Switch off the battery storage system using time
The battery switches off automatically after a defined time of 20 minutes when the battery does not detect any CAN
communication externally.
Step Description
1
If an external source (e.g. the battery inverter) does not detect a CAN communication of the battery, the battery
switches off automatically after 20 minutes.
2
Optional:
If the battery is installed in parallel mode, the battery defined as master first switches off after 20 minutes
without CAN communication of the external source.
The slave battery then switches off after 20 minutes.
If a master or a slave battery is now switched on in the parallel mode, all batteries in the complete system are
switched on since they are activated by the pre-charging voltage of the battery that is switched on first (see
Switching on the battery storage system using an external voltage source
4.17.1 Configuring the parameters of the inverter
The inverter parameters must be configured for the BMZ ESS 7.0 battery in order to operate it optimally in
combination with the inverter.
See section 4.18
4.18 Recommended parameters of the SMA Sunny Island inverter at the time
of installation:
In order to ensure the optimum working range of the battery and to optimise the quantity of storable energy, the
battery manufacturer has given the following recommendations for the parameters of the inverter:
A detailed description of parameters is given in the operating manual of your SMA Sunny Island inverter.
Amongst the recommended parameters, we differentiate between “On-grid” and “Off-grid” applications.
4.18.1 On-grid application
1. Enter the following values in the quick configuration guide during the basic configuration of the
Sunny Island inverter (see the documentation of the system):
 Battery type BatTyp: LiIon_Ext-BMS
 Battery capacity BatCpyNom: 105 Ah (C10)
2. After the basic configuration of the
Sunny remote control, turn the knob and select the
input page password (1/1).
3. Press the knob. This will take you to the input page.
4. Calculate the checksum of the Runtime operating hours. Determine the installer password.
 Example: The Runtime operating hours are 1234 h. The checksum is the sum of all digits:
1 + 2 + 3 + 4 = 10
5. Select Set on the Sunny remote control and press the knob.