M Series Wall Oven
M Series Wall Oven
Electronics
2-2
#824974 - Revision C - November, 2016
ELECTRONICS
This section is divided into four parts. The General Oven Section lists the parameters the oven operates under
given the power supply the oven is connected to. The Components section gives details on the electronic require-
ments and programming of specific components. The Non-Cooking Modes section provides parameters on how the
non-cooking modes operate electronically. The Cooking Modes section provides the parameters of the cooking
stages of each cooking mode.
GENERAL OVEN
Detects incoming power to within 3 VAC and adjusts algorithms as appropriate. Incoming power is detected and•
set at the start of a cooking mode.
Operates in 50 Hertz (Hz) mode when input power is between 47 Hz and 55 Hz. •
Operates in 60 Hz mode when input power is between 55 Hz and 63 Hz. •
Reports a supply voltage failure for input frequencies below 47 Hz and above 63 Hz. •
Enters a reset state for input frequencies below 40 Hz and above 70 Hz.•
Operates in 240 Volts Alternating Current (VAC) mode when input power is between 224 VAC and 265 VAC. •
Operates in 208 VAC mode when input power is between 177 VAC and 224 VAC.•
Reports a brown out error when input power is between 140 VAC and 177 VAC. •
Operates in showroom mode when input power is between 100 VAC and 140 VAC. •
Reports a supply voltage failure for input power below 100 VAC and above 265 VAC if it is still operating. •
A single oven uses no more than 24 Amperes (Amps) at 240 VAC.•
A double oven uses no more than 44 Amps at 240 VAC.•
An oven cavity does not exceed 20 Amps in any configuration.•
Automatically enters a standby mode using less than .5 Watts unless disabled.•
COMPONENTS
Resistance Temperature Detector (RTD)
Input determines the cavity temperature. •
One per cavity•
Controls do not introduce more than 2% error into the RTD temperature readings.•
Controls report an open RTD failure above 3049 Ω (approximately 1100° Fahrenheit (F)).•
Controls report a shorted RTD failure below 825 Ω (approximately -50° F).•
Is a platinum resistance type device measuring 1000 Ω at 32° F.•
Maximum voltage is 12 Volts Direct Current (VDC) and the maximum current is 2 milliamperes (mA).•
Probe
Is available for use in each cavity or simultaneously in both cavities. •
Temperatures below 32° F and above 255° F are not displayed. •
Controls do not introduce more than 2% error into the temperature probe temperature readings.•
Does not provide a chassis ground connection to the control circuitry when inserted. •
Controls deem no Probe inserted above 400 kilo ohms (kΩ) (approximately 2° F).•
Controls report a shorted Probe below 1000 Ω (approximately 295° F).•
Door Lock
If position is not located within 45 seconds, the controls will make two more attempts. If a position is not located•
after that a fault is generated.
Switches operate on a class 2 circuit at 5 VDC.•
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