SMA Solar Technology AG 7 Commissioning
Installation Manual SI80H-60H-OffGrid-IA-en-11 105
7.15 Changing the Type of Generator Interface
If you have installed a generator in an off-grid system, the type of generator interface determines the
way the generator is controlled.
1. Switch to installer mode (see Section 7.5).
2. If the generator has an autostart function, select the 234.07 GnStrMod parameter and set it
to Autostart.
3. If the generator does not have an autostart function, select the 234.07 GnStrMod parameter
and set it to Manual.
4. If the generator is controlled using GenMan, select the 234.07 GnStrMod parameter and set
it to GenMan.
7.16 Configuring Generator Run Times
7.16.1 Changing the Warm-Up Time for the Generator
Interrelationship between warm-up time and abortion of generator start:
Generator management measures the time between the generator start and the beginning of the
warm-up time. If a maximum time is exceeded, generator management aborts the generator start. The
maximum time to start termination depends on the generator interface:
•If the 234.07 GnStrMod parameter is set to Autostart or Manual, the maximum time to start
abortion is double the warm-up time plus an additional two minutes.
• If the parameter 234.07 GnStrMod is set to GenMan, the maximum time to start abortion is
ten minutes.
For certain generator types, the generator only switches the voltage to the generator output after the
internal warm-up time has finished. During this time, the generator management cannot detect any
valid generator voltage. If the warm-up time is set too low, the generator management aborts the
generator start before the internal warm-up time of the generator has ended.
1. Switch to installer mode (see Section 7.5).
2. For generators without internal warm-up time:
• Select the 234.12 GnWarmTm parameter and set it to the desired warm-up time.
3. For generators with an internal warm-up time:
• For generators with an autostart function, select the 234.12 GnWarmTm parameter and
set the warm-up time to be at least half the internal warm-up time of the generator.
• For generators without an autostart function, select the 234.12 GnWarmTm parameter
and set the warm-up time to be at least half the internal warm-up time of the generator.
• For generators with GenMan, select the 234.12 GnWarmTm parameter and set the warm-
up time to be at least six minutes.
☑ The generator start is not aborted prematurely.
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