Electrolux E30SO75ESS User Manual

8
E30SO75ESS
Figure O-1. Oven Schematic-OFF Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLAY.
SCHEMATIC DIAGRAM
time. And the oven will cook according to the special cooking
sequence.
FIRE SENSING FEATURE (MICROWAVE MODE)
This model incorporates a sensing feature which will stop
the oven's operation if there is a fire in the oven cavity during
microwave cooking. This fire sensing feature will operate
when the microwave power level is set to 80% or more. This
is accomplished by the LSI repeatedly measuring the volt-
age across the temperature measurement circuit (thermis-
tor) during it's 32-seconds time base comparing the ob-
tained voltage measurements. If the most recent voltage
measured is 300 mV greater than the previous voltage
measured, the LSI judges it as a fire in the oven cavity and
switches off the relays to the power transformer, fan motor
and convection motor. The LSI also stops counting down
and closes the damper door so that no fresh air will enter the
oven cavity. Please refer to the following section for a more
detailed description.
Operation
Please refer to the timing diagrams below.
1. The fire sensing will start after 30 minutes when the oven
is started.
2. The thermistor operates within a 32-seconds time base
and it is energized for three (3) seconds and off for 29
seconds. Two (2) seconds after the thermistor is
energized, the voltage across the temperature
NOTES:
1. Circuits / Wire Colors subject to change without notice.
LV TRANSFORMER
C2
C1
C4
C3
T6
T7
T4
A3
T2
A1
D9
RY2
RY1
RY5
RY4
RY3
RY6
RECTIFIER
SOLID-STATE RELAY
INTERLOCK RELAY
PRIMARY
SECONDARY
INTERLOCK
SWITCH
FAN MOTOR
UNIT
CONTROL
MONITOR SWITCH
1.0 μF
CAPACITOR
AC 2300V
MAGNETRON
RED
BLK
DAMPER SWITCH
SWITCH
DOOR
SENSING
JET MOTOR
TURNTABLE MOTOR
N.O.
N.O.
JM
DM
FM
FM
OL
TTM
THERMISTOR
SOLID-STATE RELAY
SIDE HEATER
TOP HEATER
COM.
COM.
DAMPER MOTOR
B3
B4
B1
B2
B5
B6
D7
D5
D3
E3
E5
E1
SIDE HEATER
CUT-OUT
THERMAL
CUT-OUT
TOP HEATER
THERMAL
MG.
FUSE
TEMP.
OVEN LAMP
F10A
FUSE
D1
WITH 150°C THERMOSTAT TRANSFORMER
POWER
IN PRIMARY WINDING
GND
240V 60Hz
RED
GRY
RED
BLK
BLK
RED
BRN
BLK
RED
BRN
BLK
RED
RED
BLK
ORG
BRN
ORG
BRN
RED
BLK
ORG
BLK
ORG
BLK
ORG
RED
RED
RED
ORG
ORG
ORG
BLK
RED
GRY
WHT
GRY
BLK
GRY
GRY
GRY
WHT
GRY
WHT
GRY
GRY
WHT
GRY
WHT
GRY
WHT
WHT
RED
BLU
GRY
WHT
WHT
GRY
N.O.
COM.
GRY
BLK
WHT
GRN
BLK
ORG
BLU
BLK
RED
BLK
BLU
BLU
RED
GRN
BLK
BRN
GRN
WHT
GRN
GRN
WHT
ORG
RED
T1
T3
FUSE12.5A
NOTE: " " indicates components with potential above 250V.
measurement circuit is sampled by the LSI and twenty
five (25) seconds after the thermistor is cut off the LSI
turns on the convection fan for three (3) seconds.
3. The above procedure is repeated. If the difference between
the first voltage measured (in step 1) and the voltage
measured when the procedure is repeated (step 2) is
greater than 300 mV the LSI makes the judgment that
there is a fire in the oven cavity and will switch off the relays
to the power transformer, fan motor and convection motor.
The LSI also stops counting down and closes the damper
door so that no fresh air will enter the oven cavity.
4. Once the fire sensor feature has shut the unit down, the
programmed cooking cycle may be resumed by pressing
the "START" pad or the unit may be reset by pressing the
"CLEAR" pad.
CONVECTION
MOTOR
THERMISTOR
Sensing
Voltage
ON
OFF
ON
OFF
ON
OFF
0 2 3 28 31 32 (sec.) 64 (sec.)
3 sec.
Sensing the voltage across temperature measurement circuit.
3 sec.

Electrolux E30SO75ESS Specifications

General

Brand	Electrolux
Model	E30SO75ESS
Category	Oven
Language	English