Toshiba RAS-B10GKVP-E - Outdoor Unit Control Logic

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8-2. Outdoor Unit (Inverter Assembly)
RAS-4M27GAV-E, RAS-4M27GACV-E, RAS-3M26GAV-E
A unit P.M.V.
A unit
send/receive
circuit
B unit
send/receive
circuit
C unit
send/receive
circuit
D unit
send/receive
circuit
*
1
*
2
*
1
*
2
Clock frequency
oscillator circuit
16MHz
Clock frequency
oscillator circuit
10MHz
Outdoor
fan
motor
• Inverter outdoor frequency control
• A/D converter function
• P.M.V. control
• Discharge temp. control
• Error display
• Signal communication to MCU
• PWM synthesis function
M.C.U
• PWM synthesis function
• Input current release control
• IGBT over current detect control
• High power factor correction control
• Signal communication to MCU
• Output current release control
• A/D converter function
M.C.U
Discharge temp. SensorGas side pipe temp. Sensor Suction temp. Sensor Evaporator temp. SensorOutdoor air temp. Sensor
MCC-818 (SUB-P.C. B)
MCC-1438 (MAIN-P.C. B)
220–240V ~50Hz
220V
~60Hz
Driver
circuit of
P.M.V.
Signal communication
to MCU
Inverter
(DC ® AC)
Over current
sensor
Compressor
B unit P.M.V.
C unit P.M.V.
D unit P.M.V.
4-Way valve Relay circuit
Noise filter
Over current
sensor
Inverter
(DC ® AC)
Output current
sensor
Input current
sensor
Converter
(AC ® DC)
P.M.V : Pulse motor valve
PWM : Pulse width modulation
IGBT : Insulated gate bipolar
transistor
Rotor position
detect circuit
Gate drive
circuit
Over current
detect circuit
High power factor
correction circuit
Over current
detect circuit
Gate drive
circuit
NOTE) ∗1 : 4 unit multi model only. ∗2 : Heat pump model only.