Daikin VRV X RXQ6-48ANR Series, Руководство по обслуживанию

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Field Settings for Outdoor Unit SiME341909EA
122 Part 5 Field Settings and Test Operation
 In case there is more than 1 compressor in a system (outdoor is 14/16 HP, or multi
outdoor configuration) all compressor inverter PCBs will perform the power transistor
check. In such case, disconnect U/V/W fasten terminals on all compressors. Avoid
accidental touch of fasten terminals to short-circuit or earth leak to casing.

To stop the power transistor check mode, change setting to default 2-28-0.
 Output to U/V/W will also stop when outdoor unit main PCB decides standby mode of
inverter circuit.
 Next time graph shows the different steps during the power transistor check mode.

Switching sequence during power transistor check mode:
 Mode 2-29: Capacity priority . When the night-time low noise operation is in use,
performance of system might drop because airflow rate of outdoor unit is reduced.
 Default value: 0. Capacity priority cannot be used.
 Field setting 1: capacity priority can temporary cancel the night-time low noise operation.
Capacity priority can be initiated when certain operation parameters approach the safety
setting:
 Raise in high pressure during cooling.
 Raise of discharge pipe temperature.
 Raise of inverter current.
 Raise of fin temperature inverter PCB.
Check 1 : AC power input (connector X10A on A2P: compressor) 380-415 V unbalance
max. 2%.
Check 2 : relay "K1M" on inverter PCB switches: check DC voltage on P&N increase to
±500 VDC.
Check 3 : DC = 1.42 x VAC power supply L1-L3: check at connector X3A (6/8 HP), or X5A,
X6A (10-16 HP).
Check 4 : AC U/V/W 10 Hz intermediate: check difference within 10 V (at fasten U/V/W)
Check 5 : AC U/V/W 240 Hz continuous output while voltage drop (discharge capacitors
DC) check difference between U/V/W within 10 V. 2 LEDs (V phase) brightness
reduce until OFF.
*Note: Actual voltage value depends on meter characteristics
Frequency: 240 Hz
±30 sec
±3 sec
Magnetic
switch
K1M OFF
Voltage
output
U/V/W
±170
VAC*
Check 3 ±6 sec ±3 sec
Check 5
±60 VAC*
Check 2 Check 1
±100V
AC*
Step 2:
Mode 2-28
Set 02 Ѝ 01, then
press “Return” twice
OR press “MODE” button
Voltage
output
U/V/W
Check 4
Frequency: 10 Hz
Step 1:
Mode 2-28
Set 01
Ѝ
02, then
press “Return” twice
Magnetic
switch (K1M)
ON
Disconnect U/V/W from compressor before
performing the power transistor check.