R-950A
21
Pin No.
Signal
I/O
Description
ON
OFF
H : GND
L
ON
OFF
During
cooking
L
GND
H.
(Convection)
A
B
C
H: GND
L
0.12 sec
2.4 sec
1.2 sec
1.2 sec
20 msec.
H : GND
L (-5V)
ON
OFF
During
cooking
L
GND
H.
(Grill)
VARI MODE
ON TIME
OFF TIME
HIGH (100% power)
32 sec.
0 sec.
MED HIGH (approx. 70% power)
24 sec.
8 sec.
MED (approx. 50% power)
18 sec.
14 sec.
MED LOW (approx. 30% power)
12 sec.
20 sec.
LOW (approx. 10% power)
6 sec.
26 sec.
VARI MODE
ON TIME
OFF TIME
HIGH (100% power)
48 sec.
0 sec.
MED HIGH (approx. 70% power)
36 sec.
12 sec.
MED (approx. 50% power)
26 sec.
22 sec.
MED LOW (approx. 30% power)
16 sec.
32 sec.
LOW (approx. 10% power)
8 sec.
40 sec.
ON / OFF time ratio in Simul Convection
cooking or Simul Grill cooking (a 48
second time base)
ON / OFF time ratio in Microwave cook-
ing (a 32 second time base)
18
P50
OUT
Damper motor relay driving signal.
To turn on and off shut-off relay(RY4).
19
P47
OUT
Convection heater driving signal.
To turn on and off shut-off relay(RY3). "L" level
during convection cooking and during back up for
GRILL ; "H" level otherwise. During convection
cooking, the signal becomes "H" level when the
temperature of the oven cavity exceeds the pre-
determined temperature.
20
P46
OUT
Segment data signals.
The relation between signals and indicators are as follows:
Signal Segment
Signal Segment
Signal Segment
Signal Segment
P23 ............. P1
P16 ............. P6
P12 ........... P10
P06 ........... P14
P22 ............. P2
P15 ............. P7
P11 ........... P11
P05 ........... P15
P21 ............. P3
P14 ............. P8
P10 ........... P12
P04 ........... P16
P20 ............. P4
P13 ............. P9
P07 ........... P13
P46 ........... P17
P17 ............. P5
21
P45
OUT
Terminal not used.
22
P44
OUT
Grill heater driving signal.
To turn on and off shut-off relay(RY3). "L" level
during grill cooking; "H" level otherwise. During
grill cooking, the signal becomes "H" level when
the temperature of the oven cavity exceeds the
predetermined temperature.
23
P43
OUT
Signal to sound buzzer.
A: key touch sound.
B: Completion sound.
C: When the temperature of the oven
cavity reaches the preset tempera-
ture in the preheating mode, or when
the preheating hold time (30 min-
utes) is elapsed.
24
P42
OUT
Timing signal output terminal for temperature measurement(OVEN THER-
MISTOR).
"H" level (GND) : Thermistor OPEN timing.
"L" level (-5V) : Temperature measuring timing.(Convection cooking and back up
for Grill)
25
INT1
IN
Signal to synchronize LSI with commercial power source freqency.
This is the basic timing for all real time
processing of LSI.
26
P40
IN
Connected to GND.
27
RST
IN
Auto clear terminal.
Signal is input to reset the LSI to the initial state when power is applied. Temporarily
set to "L" level the moment power is applied, at this time the LSI is reset. Thereafter
set at "H" level.
