Toshiba RAS-2M21U2ACVG-SG Service Manual page 33

Outdoor Unit (Inverter Assembly)
RAS-3M31U2ACVG-SG
RAS-3M41U2ACVG-SG
Outdoor temp. sensor
Gas side pipe temp. sensor
A unit P.M.V.
B unit P.M.V.
C unit P.M.V.
MCC-1646
(Display-P.C.B)
LED
Tact-SW
Jumper
Noise filter
Input current
Sensor
Converter
(AC→DC)
Inverter
(DC→AC)
Output current
sensor
Compressor
Driver
・Inverter outdoor frequency control
circuit
・A/D converter function
of
・P.M.V control
P.M.V．
・Processing (Temp. Processing)
・Error display
・Serial Signal Communication with
・Signal Communication with MAIN-P.C.B
・Function select
・PWM synthesis function
・Input current release control
・IPM over current detect control
・High power factor correction control
・Signal Communication with
High power factor
correction circuit
・Fan motor control
・Compressor motor control
・High-pressure switch
・Case thermo
Gate drive
circuit
M.C.U
indoor unit
Function select
Signal Communication
M.C.U
Control-P.C.B
Inverter
(DC→AC)
Output current
sensor
Outdoor
fan motor
- 33 -
Discharge temp. sensor
MCC-1665 (Control P.C.B)
A unit Serial Signal
Communication
circuit
B unit Serial Signal
Communication
circuit
C unit Serial Signal
Communication
circuit
220-240V ～50Hz
220V ～60Hz
MCC-1645 (MAIN P.C.B)
High-pressure switch
Case thermo
Clock frequency
oscillator circuit
10MHz
Gate drive
circuit
P.M.V：Pulse motor valve
PWM：Pulse width modulation
IPM ：Intelligent power module