71
EN
IMDCFJ. 12.05 6343841_03
Code
Alarm
Code
Pre-alarm
Causes
Notes
12
112
High pressure
This signal occurs when the transducer detects a flow pressure
over the set-factory parameter threshold (8) (default: 40 bar).
The pre-alarm state is exited with set_factory (8) – set_factory (b)
pressure (default 40 – 2 = 38 bar)
13
113
No defrosting probe
This signal occurs when the defrosting probe is absent and the
machine is set as heat pump
14
114
Intake pressure transducer
no compressor
This signal occurs when the compressor intake transducer is
absent and the machine is set as heat pump
15
115
Low pressure
This signal occurs when the compressor flow transducer indicates
an intake pressure below the threshold set by the set_factory (9)
parameter in cooling mode (default 4 bar), set_factory(A) ion heat-
ing mode (default 2 bar). The pre-alarm state is exited when the
intake pressure exceeds the intervention set_factory(b) threshold
default equal to 2 bar. The low pressure alarm is suspended in
heating mode for a period of time equal to 3' (set_factory param-
eter (H parameter) from compressor switch on. It is permanently
suspended during cycle reverse
16
-
Low performance
Every time the machine is powered, the control checks compres-
sor behaviour once via the yield control procedure (see 8.1); this
control is disabled from dip switch
17
117
Pump magnet circuit breaker
This signal intervenes if the magnet circuit breaker switch protect-
ing the pump is opened. MTP (table 2, contact ID3, clamps M7.5
– M7.6, normally closed). This code is displayed only if the board
is used as a board spare part with SW up to version 3.6.
18
118
High pressure partialisation
This signal occurs every time a partialisation takes place due to
the threshold mentioned in paragraph 8.5 being reached. The
machine blocks in alarm mode when the maximum number of par-
tialisation interventions allowed (expressed by the set_factory (5)
parameter: default 5) is exceeded. With inverter machine mode, it
also indicates a partialisation due to high compression ratio.
19
119
Low pressure partialisation
This signal occurs every time a low pressure partialisation takes
place, par. 8.5. The machine blocks in alarm mode when the maxi-
mum number of partialisations allowed (expressed by the set_fac-
tory (5) parameter: default 5) is exceeded.
20
120
Pressing line temperature partialisation
This signal occurs every time a pressing line temperature par-
tialisation takes place (par. 8.5), the machine blocks in alarm
mode when the maximum number of partialisation interventions
(expressed by the set_factory (5) parameter: default 5) permitted
is exceeded.
21
121
Bemf error
Error in detection of the back emf. This error is returned by the
inverter control board and is linked to compressor peak problems
(longertek 4 code or longertek 20 code)
22
122
Internal communication error
The inverter control board has internal communication problems
(longertek 5 code)
23
123
Over-current
Excess current absorption by compressor (longertek 6 code)
24
124
No load
The compressor does not absorb enough current, it may
turn in idle mode (longertek 7 code)
25
125
Incorrect voltage
The inverter control board indicates incorrect bus voltage
(longertek 8 code)
26
126
Error on start-up
The inverter control board indicates incorrect start-up of
the PMSM motor (longertek code 9)
27
127
IPM protection error
Error on the IGBT (longertek 12 code)
28
128
EEPROM error
Eeprom error on the inverter control board (longertek 13
code)
29
129
Compressor stall
Code longertek 16
30
130
No communication
The inverter control board does not respond. It may not be
powered or the serial cable could be disconnected or the
A and B signals reversed
31
131
PFC Module
PFC inverter module error (longertek 23 code)
32
132
Cooling fin overheating
(code APY 1)
33
133
Over current in acceleration mode
Hardware error (cod. APY 2)
34
134
Over-current at constant speed
Hardware error (cod. APY 3)
35
135
Over current in deceleration mode
Hardware error (cod. APY 4)
36
136
Under-voltage on the DC Bus
(code APY 5)