Outdoor Fan Motor Control - Toshiba RAS-05J2KVG-EE Service Manual

Item
3. Outdoor fan The blowing air volume at the outdoor unit side is controlled.
motor control
Receiving the operation command from the controller of
indoor unit, the controller of outdoor unit controls fan speed.
* For the fan motor, a DC motor with non-stage variable
speed system is used. However, it is limited to 8 stages for
reasons of controlling.
Air conditioner ON
(Remote controller)
Indoor unit controller
1) Outdoor unit
operation command
(Outdoor fan control)
2) Fan speed ≥ 400
when the motor stopped.
NO
Fan motor ON
3) Fan lock
NO
4) Motor operates as shown in the table below.
RAS-05J2AVG-EE
RAS-07J2AVG-EE
RAS-10J2AVG-EE
Compressor speed
RAS-13J2AVG-EE
RAS-16J2AVG-EE
RAS-18J2AVG-EE
Fan tap
To ≥ 38°C
To ≥ 28°C
To ≥ 15°C
To
To ≥ 5.5°C
To ≥ 0°C
To ≥ 0°C
When To is abnormal
Outdoor fan speed (rpm)
Tap
RAS-05J2AVG-EE RAS-07J2AVG-EE
f0 0 0 0 0
f1 300
f2 370
f3 390
f4 460
f5 500
f6 520
f7 620
f8 720
f9 750
fA 780
fB 780
fC 900
fD 900
fE
900
fF
900
Operation flow and applicable data, etc.
YES
OFF status of
fan motor continues.
YES
Air conditioner
~ 31.7
In cooling operation
32.4 ≤ Hz
20.4 ≥ Hz < 31.2
42.0 ≤ Hz
20.4 ≥ Hz < 42.0
60.6 ≤ Hz
Hz < 20.4 20.4 ≥ Hz < 60.6
75.0 ≤ Hz
20.4 ≥ Hz < 75.0
75.0 ≤ Hz
20.4 ≥ Hz < 75.0
30.6 ≤ Hz
Hz < 13.8 13.8 ≥ Hz < 30.6
MIN MAX MIN MAX MIN
f6 fB f8 fE fA
f5 fA f7 fE f9
f3 f7 f5 f9 f7
f2 f5 f4 f7 f6
f1 f3 f3 f5 f4
f1 f2 f2 f4 f3
OFF fB OFF fE f1
RPM
RAS-10J2AVG-EE
0 0
300 300
370 370
390 390
460 460
500 500
520 520
620 620
720 720
750 750
780 780
780 780
900 900
900 900
900
900
900
900
Alarm
OFF display
RAS-05J2AVG-EE
RAS-07J2AVG-EE
RAS-10J2AVG-EE
Compressor speed
RAS-13J2AVG-EE
RAS-16J2AVG-EE
RAS-18J2AVG-EE
Fan tap
MAX
To ≥ 10°C
fE
To < 10°C
fE
To
To < 5°C
fB
To < -3°C
f9
When To is abnormal
f7
f5
fE
RAS-13J2AVG-EE RAS-16J2AVG-EE
0
0
300 200
370 300
390 300
460 360
500 440
520 500
620 550
720 600
750 650
780 700
780 700
880 800
880 950
950
950
950 950
- 40 -
FILE NO. SVM-19004
Description
1) The operation command sent
from the remote controller is
processed by the indoor unit
controller and transferred to the
controller of the outdoor unit.
2) When strong wind blows at
outdoor side, the operation of air
conditioner continues with the
fan motor stopped.
3) Whether the fan is locked or not
is detected, and the operation of
air conditioner stops and an
alarm is displayed if the fan is
locked.
4) According to each operation
mode, by the conditions of
outdoor temperature (To) and
compressor revolution, the speed
of the outdoor fan shown in the
table is selected.
In heating operation
20.4 ≥ Hz < 46.2
20.4 ≥ Hz < 59.4
Hz < 20.4 20.4 ≥ Hz < 78.0
20.4 ≥ Hz < 67.8
20.4 ≥ Hz < 75.0
Hz < 16.8 16.8 ≥ Hz < 48.6
MIN MAX MIN MAX MIN
f7 f8
f9 fB
fE fE
fE fE
fE fE
RAS-18J2AVG-EE
0
300
300
300
360
450
500
550
600
650
700
700
800
850
950
950
46.2 ≤ Hz
59.4 ≤ Hz
78.0 ≤ Hz
67.8 ≤ Hz
75.0 ≤ Hz
48.6 ≤ Hz
MAX
f9
fE
fE
fE
fE