- 91 -
000070CG
8 - Maintenance
- Message on display
- Signal
Name of Derating and Cause
Solution
- LIMxxx% CODE:02
-
Display symbol
b6
Power limitation for over-voltage:
The message indicates that the user has set a power limitation
due to over voltage (parameter U >(10 min)) in order to reduce
the maximum output power of the inverter when the reading of the
average grid voltage exceeds certain limits.
The sampling of readings is done every 10 minutes (U>(10min)).
LIM xxx% = Power reduction percentage
Examples:
LIM 100% = no power limitation
LIM 50% = limitation to 50% of the output nominal power
• Check the limitation value set in the “Settings >
Service > U > (10 min) Der.” menu
- LIMxxx% CODE:03
-
Display symbol
b6
Anti-islanding power limitation:
The message indicates that a power limitation is active since an
"islanding" condition has been recorded.
LIM xxx% = Power reduction percentage
Examples:
LIM 100% = no power limitation
LIM 50% = limitation to 50% of the output nominal power
• If the inverter remains connected to the grid and
the limitation is active, contact customer assistance
- LIMxxx% CODE:04
-
Display symbol
b6
Power limitation due to low grid voltage:
The message indicates that an output power limitation may occur
since a low grid voltage (AC) condition has been recorded.
LIM xxx% = Power reduction percentage
Examples:
LIM 100% = no power limitation
LIM 50% = limitation to 50% of the output nominal power
• Check that the grid voltage is lower than the mini
-
mal voltage. Should this condition persist, contact
the grid operator to resolve the problem.
- LIMxxx% CODE:05
-
Display symbol b7
Power limitation due to excess temperature:
The message indicates that a power limitation is active since an
excess temperature condition has been recorded inside the inver-
ter (This parameter depends also on the power which the inverter
must provide since the measurement of temperatures is taken
internally and is influenced by the heat dissipated by the compo
-
nents of the inverter itself).
LIM xxx% = Power reduction percentage
Examples:
LIM 100% = no power limitation
LIM 50% = limitation to 50% of the output nominal power
• Check that the inverter is not exposed to direct
sunlight. Wait for the temperatures to which the in-
verter is exposed to return to the operating range
and for the inverter to cool down.
- If the problem (once the ambient temperature has
returned within the range) persists, contact custo-
mer assistance.
- LIMxxx% CODE:06
-
Display symbol
b6
Power limitation for input over-voltage:
The message indicates that a power limitation is active since an
input over voltage (AC) has been recorded.
LIM xxx% = Power reduction percentage
Examples:
LIM 100% = no power limitation
LIM 50% = limitation to 50% of the output nominal power
• It is necessary to measure the
input voltage inside
the inverter with a voltmeter.
- If it is higher than the maximum voltage of the ope-
rating range, the alarm is genuine and it is necessa-
ry to check the configuration of the
PV generator. If
the voltage has also exceeded the maximum input
threshold the inverter could be damaged.
- If it is lower than the maximum voltage of the ope-
rating range, the alarm is caused by an internal
malfunction and it is necessary to contact customer
assistance.
