SMA Sunny Island 2012 - Limits and Power Adjustment

SMA Solar Technology AG Connecting External Sources
Technical Description SI2012_2224-TEN082311 141
Generator Interface 233.07 GnSrtMod GenMan; Generator Request Via
Sunny Island
13.1.6 Limits and Power Adjustment
The voltage limits for generator operation can be set using the "233.01 GnVtgMin" and "233.02
GnVtgMax" parameters; the frequency limits for generator operation can be set using the "233.05
GnFrqMin" and "233.06 GnFrqMax" parameters. If the values are beyond these limits the
generator is disconnected. Slightly narrower limits apply to generator connection.
Voltage and frequency limits are monitored in phases. To connect the generator, at least the phase
on the master device must satisfy the defined limits. Slave devices connect and disconnect
individually where applicable if the limits are exceeded.
1 Generator start by Sunny Island using GenMan
2 Generator start by GenMan
3 Beginning of GenMan warm-up time
4 GenMan warm-up time has expired, connection
signaled by GenMan at the Sunny Island
5 Generator is connected via Sunny Island
6Current limitation
7 Minimum operating time (Sunny Island) has expired
8 Current is reduced, battery absorption phase
9 Charge process complete, generator disconnected
by Sunny Island
10 Signal at GenMan
11 GenMan post-run time has expired, generator
stopped
11 Stop time has expired
Information
Even in case of a power-dependent generator start, warm-up, minimum run and after-run
periods are complied with.
Information
The system voltage (AC) depends on the generator voltage when the generator is
running.
Gn
GnReq
TrfRel*
ExtCur
GnRun
(DigIn)
1
2
3
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5
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7
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9
10
11
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