Mitsubishi Electric MXZ-SM72TAM-U1 Service Manual page 107

SW1 Contents
setting
No. 12345678
14 01110000 Abnormality code
history 1 (the
latest)
15 11110000 Abnormality code
history 2
16 00001000 Abnormality code
history 3
17 10001000 Abnormality code
history 4
18 01001000 Abnormality code
history 5
19 11001000 Abnormality code
history 6
20 00101000 Abnormality code
history 7
21 10101000 Abnormality code
history 8
22 01101000 Abnormality code
history 9
23 11101000 Abnormality code
history 10 (the
oldest)
24 00011000 Cumulative time
25 10011000 Cumulative time
26 01011000 Outdoor unit
operation display
27 11011000 Indoor unit
operation mode
28 00111000
29 10111000
30 01111000
31 11111000 Indoor unit
operation display
32 00000100
33 10000100
34 01000100
35 11000100 Capacity code
(No.1 to 30 indoor
units)
36 00100100 IC operation
mode (No. 1 to 30
units)
37 10100100 OC operation
mode
38 01100100 External connec-
tion status
39 11100100 Communication
demand capacity
40 00010100 Number of
compressor ON/
OFF
41 10010100 Compressor
operating current
42 01010100 Input current of
outdoor unit
43 11010100 Thermo-ON
operating time
44 00110100 Total capacity of
thermo-ON
45 10110100 Number of indoor
units
46 01110100 DC bus voltage
OCH800A_107
1 2 3
Alternating display of addresses 0000–9999 and abnormality code (including abnormality delay code)
Followings are the delay code and the details of the abnormal delay
1202: Discharge/Comp. temperature, Thermistor <Compressor> (TH4)
1205: Thermistor <Outdoor liquid pipe> (TH3)
1211: Thermistor <Suction pipe> (TH6)
1214: Thermistor <Heat sink> (TH8)
1221: Thermistor <Ambient> (TH7)
1222: Thermistor <HIC> (TH2)
1400: Low pressure sensor
1402: High pressure (63H), High pressure sensor (63HS)
1600: Discharge superheat (SHd)
1601: Insufficient refrigerant
1608: 4-way valve disconnection
4165: Power synchronization signal
4310: Current sensor
4320: Undervoltage
4330: Heat sink temperature
4350: Power module, (Start) over current, Failure in 12 V DC power supply circuit on power circuit board
4500: Outdoor fan motor
Notes:
• Display abnormalities up to present (including abnormality delay)
• History record in 1 is the latest; records become older in sequence; history record in 10 is the oldest.
0–9999 (unit: 1 hour)
Note: Display of cumulative compressor operating time
0–9999 (unit: 10 hours)
Note: Display of cumulative compressor operating time
Compressor Compressor Compressor
energizing operating in operation
prohibition
No.1 unit No.2 unit No.3 unit
mode mode mode
No.9 unit No.10 unit No.11 unit
mode mode mode
No.17 unit No.18 unit No.19 unit
mode mode mode
No.25 unit No.26 unit No.27 unit
mode mode mode
Cooling: light on, Heating: light blinking, Stop fan: light off
No.1 unit No.2 unit No.3 unit
Thermo ON Thermo ON Thermo ON
No.9 unit No.10 unit No.11 unit
Thermo ON Thermo ON Thermo ON
No.17 unit No.18 unit No.19 unit
Thermo ON Thermo ON Thermo ON
No.25 unit No.26 unit No.27 unit
Thermo ON Thermo ON Thermo ON
Thermo ON: light on, Thermo OFF: light off
0–255
Notes:
•Address and display data are alternately displayed every second.
•Pressing SWP2 changes the displayed unit in ascending order; it returns to No. 1 after No. 30.
STOP Fan Cooling
thermo-ON
Notes:
•Address and display data are alternately displayed every second.
•Pressing SWP2 changes the displayed unit in ascending order; it returns to No. 1 after No. 30.
Compressor Heating/ Abnormal/
ON/OFF Cooling normal
Note: Light on/light off
CN3N1–3 CN3N1–2 CN3S1–2
input input input
Note: Input: light off, No input: light on
0–255 (%)
Note: Display of communication demand capacity
0000–9999 (unit: x10)
Note: Display a count of compressor operation/stop
0–999.9 (Arms)
Note: Display detected current
0000–9999 (unit: x10)
Note: Display cumulative time of thermo-ON operation
0–255
Note: Display total capacity code of indoor units in thermo-ON
0–255
Note: Display number of connected indoor units
0–9999 (V)
Note: Display bus voltage
LED1, 2
4 5 6
Abnormality
detection — —
No.4 unit No.5 unit No.6 unit
mode mode mode
No.12 unit No.13 unit No.14 unit
mode mode mode
No.20 unit No.21 unit No.22 unit
mode mode mode
No.28 unit No.29 unit No.30 unit
mode mode mode
No.4 unit No.5 unit No.6 unit
Thermo ON Thermo ON Thermo ON
No.12 unit No.13 unit No.14 unit
Thermo ON Thermo ON Thermo ON
No.20 unit No.21 unit No.22 unit
Thermo ON Thermo ON Thermo ON
No.28 unit No.29 unit No.30 unit
Thermo ON Thermo ON Thermo ON
Cooling Heating Heating
thermo-OFF thermo-ON thermo-OFF
DEFROST/ Refrigerant Excitation
NO recovery/no current/no
CN3D1-3 CN3D1-2
—
input input
7 8
— —
No.7 unit No.8 unit
mode mode
No.15 unit No.16 unit
mode mode
No.23 unit No.24 unit
mode mode
— —
No.7 unit No.8 unit
Thermo ON Thermo ON
No.15 unit No.16 unit
Thermo ON Thermo ON
No.23 unit No.24 unit
Thermo ON Thermo ON
— —
— —
3-min delay/
—
no
— —