SMA SUNNY ISLAND 8.0H - Setting the External Generator Request; Setting the Procedure in the Event of an Aborted Start of the Generator

SMA Solar Technology AG 7 Commissioning
Installation Manual SI80H-60H-OffGrid-IA-en-11 111
7.17.7 Setting the External Generator Request
Significance of external generator request:
An external control signal can transfer a generator request to the generator management.
1. Switch to expert mode (see Section 7.5).
2. To activate external generator request, select the 235.19 GnStrDigIn parameter and set it to
Enable.
3. To deactivate external generator request, select the 235.19 GnStrDigIn parameter and set it
to Disable.
7.18 Setting the Procedure in the Event of an Aborted Start of the
Generator
Operating procedure if an aborted strat of the generator is detected:
If the off-grid inverter detects a generator false start (e.g. voltage too high), the off-grid inverter does
not switch the stand-alone grid to the generator.
If there is another request for the generator after the minimum stop time, the off-grid inverter attempts
to start the generator.
If the off-grid inverter detects a false start on a number of occasions and the number of failed attempts
exceeds the maximum value, the off-grid inverter switches to error mode.
After the set time has elapsed, the off-grid inverter attempts to restart the generator.
Single-cluster systems:
Generator management evaluates a fault in the line conductor on the master as a failure of the
generator. All off-grid inverters disconnect the stand-alone grid from the generator.
Generator management treats a fault in the line conductor of the slave as a line conductor fault. The
slave only disconnects the affected line conductor from the stand-alone grid. The slave switches the
stand-alone grid to the generator again when the faulty line conductor is in the valid range.
1. Switch to expert mode (see Section 7.6).
2. To change the maximum number of failed attempts:
• Select the 235.01 GnAutoEna parameter and set it to Enable.
• Select the 235.02 GnAutoStr parameter and set it to the desired number of start attempts.
3. To change the stop time of the generator after the maximum number of start attempts has been
exceeded, select the 234.11 GnErrStpTm parameter and set it to the desired stop time.