Emerson Copeland Scroll User Manual page 25

Alarm
Description
code
E41 Low pressure switch alarm
High discharge temperature
E44
alarm
High condensing temperature
E46
alarm
E47 EXV Full-open warning
E48 Less injection warning
E50 High side liquid back warning
E80 RTC warning
E81 RTF warning
Probe configuration error
E82
alarm
Digital inputs configuration
E83
error alarm
Compressor configuration
E84
error alarm
Injection probe configuration
E85
error alarm
L86 EEPROM R/W error lock
F01 AC input over current
F02 DC bus over voltage
F03 DC bus under voltage
Alarm type Possible reason
Refrigeration system
Low pressure switch is open
error
Refrigeration system Discharge temperature is
error higher than settings
Refrigeration system Condensing temperature is
error higher than settings
Refrigeration system Less refrigerant charge or
error leakage
Refrigeration system Less refrigerant charge or
error leakage
Refrigeration system Suction liquid back or injec-
error tion too much
The time is configured for
Misc. Error
the new controller
Communication error
Misc. Error between MCU and unit
clock
The same probes are
Misc. Error
configured
The same digital inputs are
Misc. Error
configured
Digital compressor and
Misc. Error solenoid valve configura-
tion does not match
EXV and injection
Misc. Error
configuration do not match
write/read error into
Misc. Error
EEPROM
1. Compressor running
out of envelope
Alarm 2. Input voltage out of
range
3. Driver issue
1. Input voltage higher
than maximum
Alarm
2. Compressor running out
of envelope
1. Input voltage lower than
minimum
Alarm
2. Compressor running out
of envelope
Action
Automatically when LP
The compressor will
switch closes and time
be tripped
Automatically when
The compressor will discharge temperature is
be tripped lower than settings and
Automatically when
No condensing temperature is
lower than settings
Automatically when EXV is
No
not at full-open
Automatically when PHE
No super heat is smaller than
Automatically when the
difference of discharge
temperature and
No
condensing temperature
is higher than settings and
Automatically when finish
No
time configuration
Automatically when the
No
communication recovers
Automatically when the
No probes are configured
Automatically when the
The related functions
digital inputs are
will be disabled
configured correctly
Manually power off and
The compressor will power on after the com-
not work pressor configuration is
Automatically when injec-
EXV will not work tion probe is configured
Hold "start" button for 5s
or manual power off and
The compressor will
on, alarm will disappear
tripped and the unit
when the communication
will be locked
between MCU and EEPROM
The compressor will Automatically after timer
be tripped
Automatically when DC
The compressor will
bus voltage is smaller than
be tripped
settings & timer delay
Automatically when DC
The compressor will
bus voltage is higher than
be tripped
settings & timer delay
Reset
delay
time delay
settings
time delay
correctly
right
correctly
is success.
delay
25