Daikin VRV EMERION REYQ-AATJA Service Manual page 266

Field Setting from Outdoor Unit
Next time graph shows the different steps during the power transistor check mode.
 Switching sequence during power transistor check mode:
Check 1 : AC power input:
Check 2 : DC voltage:
Check 3 : DC = 1.42 x VAC power supply:
Check 4 : AC U/V/W 10 Hz intermediate:
Check 5 : Voltage drop (discharge capacitors DC)
Note(s)
Actual voltage value depends on multimeter characteristics:
 ±57 VAC for REYQ-AATJ* and ±115 VAC for REYQ-AAYD*.
259
Power transistor check mode REYQ-AA
Disconnect fasten U/V/W from compressor!
Step 1:
Magnet
Set 2-28
switch
0 1
K1M
Press RETURN
ON
twice
Check Check Check
1 2 3
Magnet
switch
K1M OFF
3 sec
at terminal L1B, L2B, L3B for REYQ-AATJ* (208/230 V unbalance maximum 2%).
at terminal L1B, L2B, L3B for REYQ-AAYD* (460 V unbalance maximum 2%).
at connector X3A increases to ±260 VDC for REYQ72AATJ*.
at connector X3A and X4A increases to ±260 VDC for REYQ96-240AATJ*.
at connector X3A increases to ±600 VDC for REYQ72AAYD*.
at connector X3A and X4A increases to ±600 VDC for REYQ96-240AAYD*.
at connector X3A for REYQ72AATJ*.
at connector X3A and X4A for REYQ96-240AATJ*.
at connector X3A for REYQ72AAYD*.
at connector X3A and X4A for REYQ96-240AAYD*.
check difference within 10 V (at fasten U/V/W)
at connector X3A increases to ±260 VDC for REYQ72AATJ*.
at connector X3A and X4A increases to ±260 VDC for REYQ96-240AATJ*.
at connector X3A increases to ±600 VDC for REYQ72AAYD*.
at connector X3A and X4A increases to ±600 VDC for REYQ96-240AAYD*.
Voltage
Check 4
output
U/V/W
Frequency: 10 Hz
note∗
3 sec
6 sec
Voltage
output
U/V/W
Press RETURN
Check
30 sec
Part 5 Field Settings and Test Operation
SiUS372201EB
Step 2:
Set 2-28
1 0
twice
5