Control System - TurboChef NGC-1007 Service Manual

The Control System is comprised of the components
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) Control System
F I G U R E
+24VDC
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
: 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.
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
DISPLAY
14
14
14
14
THE CONTROL SYSTEM
DUAL
SSR
K4
K5
3(+) 4(-)
3(+) 4(-)
+24VDC
RELAY
- 24 VDC +
PRIMARY SWITCH
NC
C
NO
SECONDARY SWITCH
NC
C
NO
VFD
13
K7
+24VDC