7 Commissioning
SMA Solar Technology AG
Operating manual
95
SI44M-80H-13-BE-en-15
Procedure:
1. Select
Generator > Generator
.
2. If the generator has an autostart function, set the parameter
Generator request
to
Automatic
.
3. If the generator does not have an autostart function, set the parameter
Generator request
to
Manual control
.
7.8.3
Configuring Generator Run Times
7.8.3.1
Changing the Warm-Up Time for the Generator
Relevant for off-grid systems
Relation between warm-up time and termination of generator start:
The generator management measures the time between the generator start and the beginning of the warm-up time. If a
maximum time is exceeded, the generator management system terminates the generator start. The maximum time to
start termination is double the warm-up time plus an additional 2 minutes.
With some generator types, the generator only switches the voltage to the output of the generator after the internal
warm-up time has expired. During this time, the generator management is unable to recognize a valid generator
voltage. If the warm-up time is set too low, the generator management terminates the generator start before the internal
warm-up time has expired.
Procedure:
1. Select
Generator > Operation
.
2. For a generator without internal warm-up time, set the
Warm-up time of generator
parameter to the required
warm-up time.
3. For a generator with internal warm-up time, set the
Warm-up time of generator
parameter to at least half of the
generator's internal warm-up time.
4. Set the parameter
Warm-up time of generator
in accordance with the generator properties.
7.8.3.2
Changing the Minimum Run Time for the Generator
Relevant for off-grid systems
1. Select
Generator > Operation
.
2. Set the parameter
Average operating time of generator
to the desired value.
7.8.3.3
Changing the Power-Down Time for the Generator
Relevant for off-grid systems
Internal shut-off delay of the generator
Generators may have an internal shut-off delay which is activated only once the generator request has been
removed. Note that this internal shut-off delay increases the actual power-down time.
Procedure:
1. Select
Generator > Operation
.
2. Set the parameter
Cooling down time of generator
to the desired value.
