Fimer PVS-175-TL - Page 167

FIMER_PVS-175-TL A.1 Version_Product manual_EN_RevC-
F
167
- Error code
- Error message
- LED status
Name of Alarm and Cause Solution
- W003
- Grid Fail
-
Yellow LED
Parameters of grid voltage outside range:
This error signal occurs when during the inverter's
normal operation the grid parameters exceed the limits
set by the operator:
- Grid voltage absent (after the signal the inverter goes
to "Missing Grid")
- Unstable grid voltage (values too low or too high)
- Unstable grid frequency
• Check the grid voltage on the inverter.
- Should it be absent, check for absence of grid
voltage on the supply point.
- If, on the other hand, the voltage tends to rise
(when the inverter is connected) there is high line or
grid impedance.
• Check the grid voltage also on the supply.
- If it is high, it means that there is high grid
impedance. In this case, ask the operator to adjust
the grid voltage. If the operator authorises a change
to the inverter's parameters, agree the new limits
with customer assistance
- If the voltage at the point of supply is much lower
than that measured on the inverter, it is necessary
to adjust the line (inverter-contactor).
- If the voltage and the grid frequency come back
within the limits (also when the inverter is connected
to the grid), contact customer assistance
- W004
- Grid OV
-
Yellow LED
Grid overvoltage:
This error signal occurs when during the inverter's
normal operation the grid voltage exceeds the maximum
limit set by the operator.
• Check the grid voltage on the inverter.
If the voltage tends to rise (when the inverter is
connected), there is a problem of high line or grid
impedance.
• Check the grid voltage also on the supply.
- If it is high, it means that there is high grid
impedance. In this case, ask the operator to adjust
the grid voltage. If the operator authorises a change
to the inverter's parameters, agree the new limits
with customer assistance
- If the voltage at the point of supply is much lower
than that measured on the inverter, it is necessary
to adjust the line (inverter-contactor).
- If the voltage and the grid frequency come back
within the limits (also when the inverter is connected
to the grid), contact customer assistance
- W005
- Grid UV
-
Yellow LED
Grid undervoltage:
This error signal occurs when during the inverter's
normal operation the grid voltage exceeds the minimum
limit set by the operator.
• Check the grid voltage on the inverter.
• Check the grid voltage also on the supply.
- If it is high, it means that there is high grid
impedance. In this case, ask the operator to adjust
the grid voltage. If the operator authorises a change
to the inverter's parameters, agree the new limits
with customer assistance
- If the voltage at the point of supply is much lower
than that measured on the inverter, it is necessary
to adjust the line (inverter-contactor).
- If the voltage and the grid frequency come back
within the limits (also when the inverter is connected
to the grid), contact customer assistance
- W006
- Grid OF
-
Yellow LED
Grid over-frequency:
This error signal occurs when during the inverter's
normal operation the grid frequency exceeds the
maximum limit set by the operator.
• Check the grid frequency in the inverter.
• Check the grid frequency also on the supply:
- If the voltage and the grid frequency come back
within the limits (also when the inverter is connected
to the grid), contact customer assistance
- W007
- Grid UF
-
Yellow LED
Grid under-frequency:
This error signal occurs when during the inverter's
normal operation the grid frequency exceeds the
minimum limit set by the operator.
• Check the grid frequency in the inverter.
• Check the grid frequency also on the supply:
- If the voltage and the grid frequency come back
within the limits (also when the inverter is connected
to the grid), contact customer assistance
- W011
- Bulk UV
-
Yellow LED
Low “Bulk” voltage (DC-DC circuit):
The alarm (which is a warning and not an error) is
generated when the voltage at the heads of the bulk
capacitors does not reach the threshold for the
operation of the inverter (internal unchangeable
threshold).
• Raise the value of the activation voltage (Vstart)
so as to have sufficient power from the PV
generator at the time of the inverter's grid
connection.
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence
of sufficient irradiation and the correct composition
of the system.
- If it exceeds Vstart, contact customer assistance.