Daikin RXS60E3V1B [111/150] Rotation pulse input on the outdoor unit pcb check

Daikin RXS60E3V1B [111/150] Rotation pulse input on the outdoor unit pcb check
SiBE07-618_D Check
Service Diagnosis 101
5.1.12 Rotation Pulse Input on the Outdoor Unit PCB Check
Check No.15 <Outdoor fan motor>
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.
5.1.13 Hall IC Check
Check No.16 1. Check the connector connection.
2. With the power on, operation off, and the connector connected, check the following.
Output voltage of about 5 V between pins 1 and 3.
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.
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.
1
2
3
4
5
6
7
Actual rotation pulse output (0 ~ 15VDC)
Rotation command pulse input (0 ~ 15VDC)
15 VDC
320 VDC
(R10811)
S70
PCB
1
S7
Gray (power supply)
Purple (signals)
Blue (grounding)
2
3
(R14216)

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