Mitsubishi Electric PUHZ-W90VHA Service Manual page 36

SW2 setting
Sub cool (SC) when error occured.
0~130
ON
Cooling:SC = T
Heating:SC = T
1 2 3 4 5 6
Compressor operation duration before
the unit stops with error.
0~999
ON
1 2 3 4 5 6
Maximum frequency when
error occured.
ON
0~150
1 2 3 4 5 6
Requested capacity step when error
occured.
ON
0~7
1 2 3 4 5 6
Compressor frequency control status
ON
1 2 3 4 5 6
U9 Error details (To be shown while
error call is deferred.)
ON
1 2 3 4 5 6
Display detail
-TH3
63HS
-TH6
63HS
Explanation for display
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0.5 secs.
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.
0~150
(When it is 100Hz or more, hundreds digit, tens
digit and ones digit are displayed by turns.
(Example) When 105Hz;
0.5 secs.
0~7
The following code will be a help to know the operat-
ing status of unit.
•Ten place(left side):
Compressor frequency control
Display
1 Input current restriction control
Compressor current restriction control
2
•First digit(Total figure of the corresponding relays are
displayed.)
Compressor frequency control
Display
Discharge temp.control(not to over rise).
1
Condensing temp.control(not to over rise).
2
Freezing protection control
4
Heatsink temp.control(not to over rise).
8
When the following 3 points are under control;
(1) Input current restriction control.
(2) Condensing temp.control(not to over rise).
(3) Heatsink temp.control(not to over rise).
Error details Cause
(No error)
Over voltage Power PCB
Insufficient
Power PCB
voltage
Input current
Control PCB
sensor error
Control PCB
ACTM error
36
0.5secs. 2 secs.
1
15
0.5secs. 2 secs.
4 15
0.5secs. 2 secs.
1 05
LED
Code
00
01
02
04
20
Unit
Minute
Hz
Step
Code
display
Code
display