Carrier XCT7 Installations- Und Benutzerhandbuch Seite 30

Failure codes
Digital
tube
Failure code
indication
definition
on master
t
uni
71-0 Upper DC motor
blocked
71-1 Lower DC motor
blocked
IPM module
High
81
temperature
protection
82 Compressor
current protection
83 Outdoor model set
error
Transient over
current in IPM
108
module rectifier
side software
109 Current detection
circuit abnormality
110 IPM modular
protection (F0)
111 Compressor out of
control
Radiator of
transducer temp.
112
too high
113 Transducer
overload
Voltage of DC bus
line of transducer
114
too low
Voltage of DC bus
line of transducer
115
too high
Communication
abnormal between
116
transducer and
control PCB
Transducer over
current (software)
117
118 Compressor
start-up failure
Detecting circuit of
transducer current is
119
abnormal
Power supply
of transducer
120
abnormal
Failure description
Running at a speed below 20rpm for 30s, or at a speed
70% lower than the target for 2 minutes, 2 minutes and
50 seconds later after stop, resumes automatically. If it
occurs thrice in an hour, confirm the failure.
IPM modular temp.≥185°F(85°C)
Compressor current exceeds specified value, 3
minutes after recovery
Model and the number of fans do not match
Transient over current in IPM module rectifier side
software
Current detection circuit abnormality
IPM modular over current, in short circuit, over
heat, voltage of control circuit too low .
In the course of compressor start-up or running, the unit
cannot detect the rotor position, or does not connect with
the compressor.
Radiator temp. too high
Output current of transducer is too high
Voltage of power source is too low
Voltage of power source is too high
Voltage of DC bus line of transducer too high
Compressor start-up fails 5 times continuously,
or compressor runs down till it stops due to
overcharging or overheating
The sensor used for current detecting of transducer
is abnormal, disconnected, or incorrectly connected
Current detection sensor of frequency controller
is abnormal, disconnected, or connected
incorrectly.
Power supply of transducer is broken suddenly
23
Remarks
Once confirmed,
non-resumable
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
Non-resumable
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
Resumable
Thrice an hour,
confirm failure;
once confirmed,
non-resumable