Changing The Generator Request Via The Charging Process Of The Battery; Setting An External Generator Request; Configuring The Procedure In The Event Of A Generator False Start - SMA SUNNY ISLAND 3.0M Installation Manual

8 Commissioning
8.4.4.6

Changing the Generator Request via the Charging Process of the Battery

1. Log in to the communication product as Installer (see the user manual of the communication product) or
switch to expert mode on the Sunny Remote Control (see the Sunny Island operating manual).
2. Select the parameter Generator request in configured charge mode / 235.18 GnStrChrgMod and set to the
desired generator request:
Value
Equal
Full
Both
Off
8.4.4.7

Setting an External Generator Request

An external control signal can transmit a generator request to the generator management.
Procedure:
1. Log in to the communication product as Installer (see the user manual of the communication product) or switch to
expert mode on the Sunny Remote Control (see the Sunny Island operating manual).
2. In order to activate the external generator request, select the parameter Reaction to digital input of the
generator request / 235.19 GnStrDigIn and set to Enable.
3. In order to deactivate the external generator request, select the parameter Reaction to digital input of the
generator request / 235.19 GnStrDigIn and set to Disable.
8.4.5

Configuring the Procedure in the Event of a Generator False Start

Operating procedure if a generator false start is detected:
If the Sunny Island detects a generator false start (e.g., voltage too high), the Sunny Island does not connect
the stand-alone grid to the generator.
If there is another request for the generator after the minimum stop time, the Sunny Island attempts to start the generator.
If the Sunny Island detects a false start on numerous occasions and the number of failed attempts exceeds the maximum
value, the Sunny Island switches into error status.
After the stop time 234.11 GnErrStpTm has expired, the Sunny Island attempts to restart the generator.
Single cluster systems:
The generator management classes a line conductor fault on the master as a generator failure. All Sunny Island inverters
disconnect the stand-alone grid from the generator.
The generator management treats a fault on the slave line conductor as a line conductor fault. The slave disconnects only
the affected line conductor from the stand-alone grid. The slave switches the stand-alone grid to the generator again if
the faulty line conductor is in the valid range.
Procedure:
1. Log in to the communication product as Installer (see the user manual of the communication product) or switch to
expert mode on the Sunny Remote Control (see the Sunny Island operating manual).
2. In order to change the maximum number of failed attempts on the Sunny Remote Control:
• Select the parameter 235.01 GnAutoEna and set it to Enable.
• Select the parameter 235.02 GnAutoStr and set to the desired number of start attempts.
3. In order to change the maximum number of failed attempts on the communication product:
• Select the parameter Automatic generator start.
• Activate the automatic generator start and set the desired number of start attempts (see user manual of the
communication product).
96 SI30M-44M-60H-80H-IA-en-32
Explanation
Generator request during equalization charge
Generator request during full charge
Generator request during equalization and full charge
Deactivation of the generator request via the charging process of the battery
SMA Solar Technology AG
Installation manual