Emerson Copeland Scroll User Manual page 27

Alarm
Description
code
Modbus communication lost in
F40
driver
Compressor phase over current
F41
(intermediate)
Variable speed unit wrong
L38
parameter configuration
Communication lost between
L39
inverter & system controller
L35 Inverter lockout
Alarm
Possible reason
type
1. Driver communication part
issues
2. Communication cable poor
Alarm
connection
3. Controller communication
part issues
1. Compressor running out of
envelope
2. Driver issues
Alarm
3. Compressor motor issues
4. Wrong compressor model
setting in controller
1. Driver with wrong
configuration
LOCKOUT
2. Controller with wrong
configuration
1. Poor connection between
LOCKOUT controller & driver
2. Controller/driver issue
LOCKOUT Inverter with lockout errors
Action
Automatically when
The compressor will be
communication recover &
tripped
timer delay
The compressor will be Automatically after timer
tripped delay
The compressor will be Automatically when driver
tripped and the unit will and controller have the
be locked right configuration
The compressor will be
Automatically when
tripped and the unit will
communication recover
be locked
The compressor will be Press "Start" >5 sec or
tripped and the unit will manually power-off and
be locked power-on
Reset
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