Troubleshooting by Indication on the Remote Controller
379
Check on connector of fan motor
(Signal cable)
(1) Turn OFF the power supply.
(2) Measure the resistance between Vcc and each
phase of U, V, W and GND and each phase at the
motor side connectors (five-core wire) to check that
the values are balanced within the range of ± 20 %,
while connector or relay connector is disconnected.
Furthermore, to use a multiple meter for
measurement, connect the probe of negative pole to
Vcc and that of positive pole to GND.
CHECK 17
Measure the resistance
values between Vcc
and U,V,W, and GND
and U,V,W.
GND
Vcc
W
V
U
5 Gray
4 Pink
3 Orange
2 Blue
1 Yellow
Содержание VRVII
Страница 1: ...Pocket Manual Service Diagnosis Si30 701_A...
