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User Manual for HYD 3-6 kw ES Hybrid Inverter - Rev. 1.1 del 13/06/2019
Identificazione: MD-AL-GI-00
Rev. 4.0 del 31.01.18 - Applicazione: GID
8.
Troubleshooting
Code
Name
Description
Solution
ID01
GridOVP
Grid voltage is too high.
If the alarms occurs occasionally, the probable
cause is that the electric grid is in an abnormal
state. The HYD-ES inverter will automatically
return to its normal operating state when the
electrical grid is restored to its normal state.
If the alarm occurs frequently, check whether
the grid voltage/frequency is within the
acceptable range. If so, check the AC switch
and the AC wiring of the HYD-ES inverter.
If the grid voltage/frequency is NOT within the
acceptable range and the AC wiring is correct
but the alarm occurs repeatedly, contact ZCS
Technical Support to change the grid
overvoltage, undervoltage, overfrequency and
underfrequency protection points after
obtaining approval from the local grid operator.
ID02
GridUVP
Grid voltage is too low.
ID03
GridOFP
Grid frequency is too
high.
ID04
GridUFP
Grid frequency is too
low.
ID05
BatOVP
Battery voltage is too
high
If the alarm occurs occasionally, wait a few
moments to see if the problem has been
resolved.
If the alarm occurs frequently, check that the
battery overvoltage setting is compatible with
the battery specifications.
ID07
Fault GridLVRT
ID08
PVOVP
Photovoltaic voltage is
too high
Check whether too many photovoltaic modules
are connected in series in a PV string causing
the voltage (Voc) of the PV string to be higher
than the maximum input voltage allowed for
the HYD-ES inverter. In this case, reduce the
voltage of the PV string by adjusting the
number of photovoltaic modules so that it
adapts to the voltage range of the HYD-ES
inverter. Once the necessary changes have
been made, the HYD-ES inverter automatically
returns to its normal operating state.
ID09
HW_LLCBus_OVP
LLCBus voltage is too
high and has triggered
the hardware
protection.
ID09- ID12 are internal faults of the HYS-ES
inverter; switch off the inverter, wait 5 minutes
and then switch it back on again. Check if the
problem has been resolved.
If not, contact ZCS Technical Support.
ID10
HW_Boost_OVP
Voltage increase is too
high and has triggered
the hardware