Control System Schematic - TurboChef TORNADO Service Manual

is comprised of the components
The Control System
that signal, sense, command, and switch the oven's
various components. Figure 7 shows a functional
diagram of all the components that make up the
Control System.
24VDC
L
+V
POWER
SUPPLY
N
-V
BMSC
4
FOR MORE DETAIL, SEE FIGURE 37
3
240 VAC
0-10V
2
SPD
3 PHASE
I/O COM
CMD
OUT
1
ENABLE
I/O COM
200-240
STATUS OK
3
VAC IN
2
GROUND
1
VOLTAGE
VOLTAGE INPUT
SENSOR
U.S. ONLY
A (-)
IR THERMOCOUPLE
C (+)
A (-)
EC THERMOCOUPLE
C (+)
A (-)
CC THERMOCOUPLE
C (+)
®
7 : NGC (Tornado
F I G U R E
K1 K2
MECH MECH
RELAY RELAY
+ 24 VDC - + 24 VDC -
+24VDC
COMMON
1
2
3
4
5
I/O
6
CONTROL
BOARD
COMMON
1 2
1 2
1 2
1 2
KEYPAD
) Control System
: The part numbers for each component can
N O T E
be located on the drawings found throughout and
at the end of this manual.
+24VDC
K3 K6
MECH MECH
RELAY RELAY
(U.S. ONLY)
+ 24 VDC - + 24 VDC -
MONITOR SWITCH
NC
C
NO
MONITOR
INTERLOCK
+24VDC
IR ELEMENT COMMAND
CONVECTION HEATER COMMAND
MAGNETRON COOLING FAN COMMAND
PRIMARY SWITCH
INTERLOCK
SECONDARY SWITCH
INTERLOCK
COMMON
14
14
14
14
THE CONTROL SYSTEM
DUAL
SSR
K5 K4
3(+) 4(-)
3(+) 4(-)
+24VDC
- 24 VDC +
PRIMARY SWITCH
NC
C
NO
SECONDARY SWITCH
NC
C
NO
VFD
DISPLAY
13
K7
RELAY
+24VDC