SiUS122226EA
8.2
Indoor Fan Motor Connector Check
Check No.02
CTXS, FTXS, FTXR, FVXS Series
1. Check the connection of connector.
2. Check motor power supply voltage output (pins 4 - 7).
3. Check motor control voltage (pins 4 - 3).
4. Check rotation command voltage output (pins 4 - 2).
5. Check rotation pulse input (pins 4 - 1).
CDMQ, FDMQ Series
1. Turn the power supply OFF.
2. With the fan motor connector disconnected, measure the resistance between each pin, then
Measuring points
Part 6 Service Diagnosis
S1 or S200
7
6
5
4
3
2
1
make sure that the resistance is more than the value mentioned in the following table.
Judgement
White - Blue
1 MΩ or more
Orange - Blue
100 kΩ or more
Brown - Blue
100 Ω or more
Red - Blue
100 kΩ or more
Motor power supply voltage (310 ~ 340 VDC)
Unused
Unused
GND
Motor control voltage (15 VDC)
Rotation command voltage (1~ 5 VDC)
Rotation pulse input
X8A
White
FG
Orange
Vsp
Brown
Vcc
Blue
GND
—
—
—
—
Red
Vdc/Vm
(R25080)
Check
(R14225)
227