Daikin RMXS-L Series User Manual

Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series SiUS181631EA
206 Troubleshooting
4.6.2 Indoor Fan Motor Connector Check
Check No.02 CTXG, CTXS, FTXS, 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).
4.6.3 Hall IC Check
Check No.04 CDXS, FDXS Series
1. Check the connector connection.
2. With the power on, operation off, and the connector connected, check the following.
(1) Output voltage of about 5 V between pins 1 and 3.
(2) Generation of 3 pulses between pins 2 and 3 when the fan motor is operating.
If NG in step (1)
Æ
Defective PCB
Æ
Replace the PCB (control PCB).
If NG in step (2)
Æ
Defective Hall IC
Æ
Replace the fan motor.
If OK in both steps (1) and (2)
Æ
Replace the PCB (control PCB).
7
6
5
4
3
2
1
S1 or S200
(R14225)
Motor power supply voltage (310 ~ 340 VDC)
Unused
Unused
GND
Motor control voltage (15 VDC)
Rotation command voltage (1~ 5 VDC)
Rotation pulse input
1
Gray (power supply)
Purple (signals)
Blue (grounding)
2
3
(R14211)
S7

Daikin RMXS-L Series Specifications

General

Brand	Daikin
Model	RMXS-L Series
Category	Heat Pump
Language	English