No.
Name
Level Cause
Corrective measures
W 383 HotAcBusSlv1
1
When the tie switch is open, AC
voltage is present at line con-
ductor L2 (slave 1).
• Ensure that the triggering of the tie
switch is correct.
• Ensure that the tie switch is correctly
wired.
W 384 HotAcBusSlv2
1
When the tie switch is open, AC
voltage is present at line con-
ductor L3 (slave 2).
10.5.4 Generator Category (4xx)
No.
Name
Level Cause
Corrective measures
W 401 GnRevPwrProt
1
Reverse power protection
(Generator)
: AC sources in the
system are driving the genera-
tor. The reverse power in the
generator has been exceeded
for too long.
• Adjust the generator request to the
properties of the AC sources in the
system and the loads, e.g., for PV
inverters, preferably request the
generator at night.
• If the generator can absorb reverse
power, adjust the settings for
reverse power (see the
Sunny Island inverter installation
manual).
W 402 GnFailLock
1
Blocking of generator due to too
many interrupted start-ups
• Ensure that the generator triggering
is functioning, the generator starts,
and there is constant and stable
generator voltage present at
connection
AC2
.
• To re-enable connection of the
generator, acknowledge the
generator error (see Section 10.3
"Acknowledge Errors", page 47).
A warm-up time
234.12 GnWarmTm
that is too short may have been config-
ured and hence the generator is unable
to supply valid voltage.
• Ensure that the generator warm-up
time is configured appropriately
(see the Sunny Island inverter
installation manual).
10 Troubleshooting
SMA Solar Technology AG
Operating Manual
67
SI30M-44M-60H-80H-BE-en-33
Summary of Contents for SUNNY ISLAND 3.0M
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