37
IPM Continuity Check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure
the resistance between P and UVWN; UVW and N.
Table 16—Digital Tester
DIGITAL TESTER
NORMAL RESISTANCE
VALUE
DIGITAL TESTER
NORMAL RESISTANCE
VALUE
(+)Red
(-)Black
∞
(Several M
Ω
)
(+)Red
(-)Black
∞
(Several M
Ω
)
P
N
U
N
U
V
V
W
W
(+)Red
Indoor AC Fan Motor
Measure the resistance value of each winding by using the tester.
Table 17—Resistance Value
POSITION
RESISTANCE VALUE
RPG13B
RPG50B (YKFG-50-4-1)
Black - Red
100.5
Ω±
8%
(20
°
C /68
°
F)
(Brand: Weiling)
100
Ω±
8%
(20
°
C /68
°
F)
(Brand: Dayang)
82.2
Ω±
8%
(20
°
C /68
°
F)
(Brand: Weiling)
85
Ω±
8%
(20
°
C /68
°
F)
(Brand: Dayang)
White - Black
64.5
Ω±
8%
(20
°
C /68
°
F)
(Brand: Weiling)
68.5
Ω±
8%
(20
°
C /68
°
F)
(Brand: Dayang)
72.3
Ω±
8%
(20
°
C /68
°
F)
(Brand: Weiling)
57.8
Ω±
8%
(20
°
C /68
°
F)
(Brand: Dayang)