Mitsubishi Electric PUHZ-W90VHA, Service Manual

Page: 36 / 45

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