Loading ...
Loading ...
Loading ...
45
DIAGNOSIS AND SOLUTION (CONT)
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 21—IPM Continuity Check
Digital Tester
Normal Resistance Value Digital Tester Normal Resistance Value
(+)Red (-)Black
∞
(Several MΩ)
(+)Red (-)Black
∞
(Several MΩ)
P
N U
N
U V
V W
W (+)Red
Fan Motor
Measure the resistance value of each winding by using the tester.
Table 22—Fan Motor
Model
YKT-32-6-202L YKT-32-6-3L YKT-48-6-206 YKT-63-6-200L
Brand Tongde Welling Welling Welling
Black – Red (Main)
Ω 86 213 152 88.5
Blue –Black (AUX)
Ω 64 156 142 138
Loading ...
Loading ...
Loading ...