Sequence Of Operations; Unit Plugged Into Power; Power Switch Turned On; Press & Go Button Selected - Lincoln Impinger Aperion 24 Service Manual

Unit Plugged Into Power

• Both L1 and L3 10A fuses energized
• Safety Contactor Engaged/Energized (If oven high
limit capillary and both component hi-limits are
not tripped and the 30A circuit breaker is in the ON
position)
• Oven High Limit Capillary Thermostat (SW3)
Energized with L3
• Component High Limit Thermostats (SW4, SW5)
Energized with L3
• Circuit Breaker (CB1) Energized with L3
• All three SSRs are energized with L1, L2, L3 Power
• Motor Driver 1 and 2 Energized with L1 and L3 Power
• Dual Voltage Board (E5) energized with L1 and L3
Power
• 24VDC Power Supply Energized with L1 and L3 Power
• DC 4A fuse Energized, which protects the DC
components: cooling fans, UI and IO board
• Main Rocker Power Switch Input Energized with
24VDC. Green Light ON (not implemented with this
switch)
• Cooling Fan Thermostat (SW2) Energized with 24VDC

Power Switch Turned ON

• Cooling Fans 1 through 5 are Energized with 24VDC
• IO Board Energized
• IO Board Boots UP UI
• UI initiates with Welbilt BOOT screen
• UI Loads to Home Screen after small delay in time
• Optional Motor Drive STR8 (E6) Energized with
24VDC
NOTE: See Section 8 - Wiring Schematics for reference.
18
Section 3

Sequence of Operations

1. Press and Go Selected

2. Chef Mode (Manual Mode) Selected

NOTE: See Section 6 - Controls for UI screens and their
sequence.
Document #: LIN_EO_SM_IMPAPERION2424_4607818 – 07/21
• UI displays Recipes
1.1 Recipe Selected
• Unit enters pre-heating mode
• Motor blowers ramp up to Pre-Heat Speed (50%)
• Conveyor belt is OFF
• Call for Heat sent to SSRs: all elements are
energized
1.2 Once Pre-Heating is complete, Recipe Mode is
engaged
• Oven will ramp up to recipe upper and lower
motor speed setpoints (%)
• Oven will maintain temperature setpoint
• Conveyor will turn on to recipe cook time speed
1.3 Eco Mode Button: temperature set point will be
maintained, but blower motor speed will be set to 40%
and the conveyor belt will be OFF
2.1 Enter Temperature Set Point
2.2 Enter Upper and Lower Motor Speed (%)
2.3 Enter Conveyor belt speed (min:sec)
2.4 In this mode, temperature and motor speed values
will change automatically when on this screen, but these
set points can be saved into a recipe when the save
button is pressed
2.5 Save Button Pressed
• Select Recipe
• Change icon or color if applicable
• Press the save button