Mitsubishi Electric PUZ-WM50VHA Service Manual page 56

SW2 setting
Outdoor heat sink temperature (TH8)
−40 to 200
ON
1 2 3 4 5 6
Discharge superheat SHd
0 to 255
ON
Cooling = TH4−T
Heating = TH4−T
1 2 3 4 5 6
Number of defrost cycles
0 to FFFE
ON
1 2 3 4 5 6
Input current of outdoor unit
ON
1 2 3 4 5 6
Secondary LEV opening pulse
0 to 500
ON
Heating: LEV-A
Cooling: LEV-B
1 2 3 4 5 6
U9 error detail history (latest)
ON
1 2 3 4 5 6
DC bus voltage
180 to 370
ON
1 2 3 4 5 6
Error postponement code history (2)
of outdoor unit
ON
1 2 3 4 5 6
OCH727
Display detail
63HS
63HS
The black square (
Explanation for display
−40 to 200
(When the temperature is 0: or less, "–" and
temperature are displayed by turns.)
(When the thermistor detects 100: or more,
hundreds digit, tens digit and ones digit are
displayed by turns.)
0 to 255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
0 to FFFE (in hexadecimal notation)
(When more than FF in hex (255 in decimal), the
number is displayed in order of 16
16 's and 16 's places.
1 0
(Example) When 5000 cycles;
0.5 s
0 to 500
(When it is 100 or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
0 to 500
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
Description
Normal
Overvoltage error
Undervoltage error
Input current sensor error
L -phase open error
1
Abnormal power synchronous signal
PFC/IGBT error (W-VAA)
Undervoltage
Display examples for multiple errors:
•
Overvoltage (01) + Undervoltage (02) = 03
Undervoltage (02) + Power-sync signal error (08) = 0A
L phase open error (04) + PFC/IGBT error (20) = 24
1
180 to 370
(When it is 100 V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
"00" is displayed in case of no postponement.
56
■
) indicates a switch position.
's and 16 's, and
3 2
0.5 s 2 s
9
C4
Display
00
01
02
04
08
20
Unit
:
°C
2 cycles
0.1 A
Pulse
Code
display
V
Code
display