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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.
Summary of Contents for VRV X RXQ10ARYFK
Page 1: ...Service Manual Cooling Only 50 60 Hz RXQ6 48A N R Series SiME341909EA...
Page 289: ...SiME341909EA Wiring Diagrams Part 7 Appendix 283 RXQ10 12ARYFK 2D124184...
Page 290: ...Wiring Diagrams SiME341909EA 284 Part 7 Appendix RXQ14 16ARYFK 2D124183...
Page 295: ...SiME341909EA Wiring Diagrams Part 7 Appendix 289 FXMQ40 50 63 80 100ARV1 3D127112 04 59...