SiUS091133
Check
Service Diagnosis
148
5.9
Rotation Pulse Check on the Outdoor Unit PCB
Check No.16
09/12 class
1. Check that the voltage between the pins 10 - 11 is 15 VDC.
2. Check if the Hall IC generates the rotation pulse (0 ~ 15 VDC) 4 times between the pins 10 -12,
10 - 13, when the fan motor is manually rotated once.
15/18/24/30/36 class
Make sure that the voltage of 320 ± 30 V is applied.
1. Set operation off and power off. Disconnect the connector S70.
2. Check that the voltage between the pins 4 - 7 is 320 VDC.
3. Check that the control voltage between the pins 3 - 4 is 15 VDC.
4. Check that the rotation command voltage between the pins 2 - 4 is 0 ~ 15 VDC.
5. Keep operation off and power off. Connect the connector S70.
6. Check whether 2 pulses (0 ~ 15 VDC) are output at the pins 1 - 4 when the fan motor is rotated
1 turn by hand.
When the fuse is melted, check the outdoor fan motor for proper function.
If NG in step 2
Defective PCB
Replace the outdoor unit PCB.
If NG in step 4
Defective Hall IC
Replace the outdoor fan motor.
If OK in both steps 2 and 4
Replace the outdoor unit PCB.
13
12
11
10
9
8
7
6
5
4
3
2
1
S70
Phase U
15 VDC
Phase V
Phase W
HU (Hall IC)
HV (Hall IC)
Free pin
Free pin
Free pin
Free pin
Free pin
Free pin
(R11907)
1
2
3
4
5
6
7
320 VDC
(R10811)
S70
PCB
Actual rotation pulse output (0 ~ 15VDC)
Rotation command pulse input (0 ~ 15VDC)
15 VDC
Содержание FTXS30LVJU
Страница 8: ...SiUS091133 Table of Contents vii...
Страница 11: ...SiUS091133 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 FTXS Series 2 1 2 FDXS Series 4...
Страница 15: ...SiUS091133 5 Specifications Part 2 Specifications 1 Specifications 6 1 1 FTXS Series 6 1 2 FDXS Series 11...
Страница 164: ...SiUS091133 Check Service Diagnosis 154 15 18 class 24 30 36 class Power module R16697 R16073 Power module...
Страница 259: ...Indoor Unit FTXS30 36LVJU SiUS091133 249 Removal Procedure 6 Disconnect the connector Step Procedure Points R9558...
Страница 413: ...Wiring Diagrams SiUS091133 403 Appendix...