REFU Elektronik GmbH REFUsol 40K / 46K-MV 51
Error
Code
Text Description Action
A0020 External cut-off External monitoring has triggered a
disconnection.
During the inverter detects an
external cut-off: Verify external
cut-off signal . Possible causes:
wire breakage or wrong sensor
selected. Refer to the manual for
the right settings.
A0021 ARC fault
detected
Arc fault detection has triggered a
disconnection
Reset the arc fault detector. Press
ESC on the Disblay.
A0022 Ext. OVGR
Signal
External stop signal OVGR is
detected.
During the inverter detects OVGR:
Verify External stop signal OVGR.
Possible causes wire breakage.
A0102 Overtemperatur
e LT 1
Cooler overtemperature (right)
Check temperature of direct
surroundings and reduce this as
required.
A0103 Overtemperatur
e LT 2
Interior overtemperature (left)
A0104 Overtemperatur
e LT 3
Interior overtemperature (right)
A0105 Overtemperatur
e LT 4
Cooler overtemperature (left)
A0106 Supply voltage
LT
Supply voltage at the power section
is too low.
Please contact Service
A010C PM isolation LT Power section detects an isolation
error on activation.
Check system isolation. If you
consider the isolation resistance to
be in order, contact Service.
A010E Device fault LT Power section hardware shutdown Note: When did the error occur
(precisely: day, kW output, time).
A0114 PM isolation
RCD LT
Residual current measured from the
power section exceeded the limits.
residual current > Limit values of
20 mA, 130 mA, 280 mA respectively
Please contact Service
A0116 R-detect 0 Do nothing. The inverter will
acknowledge the error
automatically. If problem occurs
repeatedly, contact Service.
A0117 Isolation test
unit
Test isolation test is taking too long.
Please contact Service
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