Mitsubishi Electric MXZ-8A140VA Technical & Service Manual page 80

SW2 setting
Thermostat-on time until error stops
0~999
ON
1 2 3 4 5 6
Target rotation of outdoor fan motor
ON
1 2 3 4 5 6
Sub-cool (Heating mode)
ON
1 2 3 4 5 6
Code of the difference between room
temperature and set temperature
("∆Tj": 0–99)
Tens digit of code: current ∆Tj
Units digit of code: ∆Tj a minute
ago
ON
1 2 3 4 5 6
U9 Error status during the Error
postponement period
ON
1 2 3 4 5 6
Display detail
SW1
4 5 6
Indoor unit 1
0 0 0
Indoor unit 2 1 0 0
Indoor unit 3
0 1 0
Indoor unit 4
1 1 0
Indoor unit 5 0 0 1
Indoor unit 6 1 0 1
Indoor unit 7 0 1 1
Indoor unit 8 1 1 1
Explanation for display
0~999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs.
0~999
0~130
Code of the difference between room temperature and
set temperature ("∆tj")
Cooling
∆tj
∆tj = room temp. – Set temp. ∆tj = Set temp. – room temp.
∆tj [ –0.5
0
–1.0 < ∆tj [ –0.5
1
–0.5 < ∆tj [ –0.5
2
0.0 < ∆tj [ 0.0
3
0.5 < ∆tj [ 0.5
4
1.0 < ∆tj [ 1.0
5
1.5 < ∆tj [ 0.5
6
2.0 < ∆tj [ 2.0
7
2.5 < ∆tj [ 2.5
8
3.0 < ∆tj [ 3.0
9
SW setting (1-4, 5, 6) Target unit
000 Indoor unit 1
100 Indoor unit 2
010 Indoor unit 3
110 Indoor unit 4
001 Indoor unit 5
101 Indoor unit 6
011 Indoor unit 7
111 Indoor unit 8
Description
Normal
Power circuit board
Overvoltage error
Controller circuit board
Undervoltage error
Controller circuit board
T phase interruption error
Power circuit board
Abnormal power synchronous signal
PFC error
Power circuit board
(Overvoltage / Undervoltage / Overcurrent)
W Display examples for multiple errors:
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
T phase interruption (04) + PFC error (10) = 14
80
0.5secs. 2 secs.
4
15
Heating
∆tj [ –0.5
–0.5 < ∆tj [ 0.0
0.0 < ∆tj [ 0.5
0.5 < ∆tj [ 1.0
1.0 < ∆tj [ 1.5
1.5 < ∆tj [ 2.0
2.0 < ∆tj [ 2.5
2.5 < ∆tj [ 3.0
3.0 < ∆tj [ 3.5
3.5 < ∆tj
Detection point Display
— 00
01
02
04
08
10
Unit
Minute
rpm
:
Code
display
Code
display