Hitachi RAS-25CNH2 Service Manual page 37

PWM output
Voltage at I
Voltage at J
Output voltage
Fan Motor Set Wind Velocity and DC Voltage (between blue and red) Characteristics
Mode
Fan Speed
SS
S
OVERLOAD
LO
HI
SUPER HI
S
LO
HI
SUPER HI
S
Fig. 8-2
Connector blue-red voltage (V)
9.8
16.6
19.1
19.1
27.7
27.7
16.0
18.7
20.9
20.9
16.0
– 40 –
Rotation Speed (min -1 )
714
950
1,040
1,040
1,350
1,350
930
1,020
1,100
1,100
930