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Error item
number
Slave2 outside unit inverter compressor opera-
2 6 3
tion failure error
Master outside unit inverter DC link over-volt-
2 8 1
age error
Slave1 outside unit inverter DC link over-volt-
2 8 2
age error
Slave2 outside unit inverter DC link over-volt-
2 8 3
age error
Master outside unit inverter compressor over-
2 9 1
current
Slave1 outside unit inverter compressor over-
2 9 2
current
Slave2 outside unit inverter compressor over-
2 9 3
current
Master outside unit inverter CT under-current
3 1 1
error
Slave outside unit inverter CT under-current
3 1 2
error
Slave1 outside unit inverter CT under-current
3 1 3
error
Master outside unit inverter compressor dis-
3 2 1
charge temperature over-rise
Slave1 outside unit inverter compressor dis-
3 2 2
charge temperature over-rise
Slave2 outside unit inverter compressor dis-
3 2 3
charge temperature over-rise
Master outside unit static speed compressor
3 3 1
discharge temperature over-rise
Slave1 outside unit static speed compressor
3 3 2
discharge temperature over-rise
Slave2 outside unit static speed compressor
3 3 3
discharge temperature over-rise
3 4 1 Master outside unit high pressure over-rise
3 4 2 Slave1 outside unit high pressure over-rise
3 4 3 Slave2 outside unit high pressure over-rise
Master outside unit low pressure over-drop.
3 5 1
3 5 2 Slave1 outside unit low pressure over-drop.
3 5 3 Slave2 outside unit low pressure over-drop.
PFC Transmission error of master outside unit:
3 9 1
Inv.Micom ÷ Convertor Micom
PFC Transmission error of slave1 outside unit:
3 9 2
Inv.Micom ÷ Convertor Micom
PFC Transmission error of slave2 outside unit:
3 9 3
Inv.Micom ÷ Convertor Micom
Master outside unit inverter compressor CT
4 0 1
sensor error
Slave1 outside unit inverter compressor CT
4 0 2
sensor error
Root cause of error
Initial operation failure due to slave2 outside unit inverter compressor
error
Compressor turned Off due to master outside unit inverter DC voltage
over-charge
Compressor turned Off due to slave1 outside unit inverter DC voltage
over-charge
Compressor turned Off due to slave2 outside unit inverter DC voltage
over-charge
Master outside unit inverter compressor error or operating component
(IPM) error operation
Slave1 outside unit inverter compressor error or operating component
(IPM) error operation
Slave2 outside unit inverter compressor error or operating component
(IPM) error operation
Compressor turned off due to master outside unit inverter CT under-
current
Compressor turned off due to slave outside unit inverter CT under-cur-
rent
Compressor turned off due to slave1 outside unit inverter CT under-
current
Compressor turned off due to master outside unit inverter compressor
discharge temperature over-rise
Flow rate insufficiency or flow switch trouble of master outside unit
Compressor turned off due to slave1 outside unit inverter compressor
discharge temperature over-rise
Flow rate insufficiency or flow switch trouble of slave1 outside unit
Compressor turned off due to slave2 outside unit inverter compressor
discharge temperature over-rise
Flow rate insufficiency or flow switch trouble of slave2 outside unit
Compressor turned off due to master outside unit static speed com-
pressor discharge temperature over-rise
Compressor turned off due to slave1 outside unit static speed com-
pressor discharge temperature over-rise
Compressor turned off due to slave2 outside unit static speed com-
pressor discharge temperature over-rise
Compressor turned off due to master outside unit high pressure over-rise
Compressor turned off due to slave1 outside unit high pressure over-rise
Compressor turned off due to slave2 outside unit high pressure over-rise
Compressor turned off due to master outside unit low pressure over-
drop.
Compressor turned off due to slave1 outside unit low pressure over-drop.
Compressor turned off due to slave2 outside unit low pressure over-drop.
Failing to transmission between inverter Micom and converter Micom
of master outside unit
Failing to transmission between inverter Micom and converter Micom
of slave1 outside unit
Failing to transmission between inverter Micom and converter Micom
of slave2 outside unit
Master outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Slave1 outside unit inverter compressor current detection (CT) sensor
disconnection or short circuit
Test Run
Installation Manual 67
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