l ems controllers use a door switch to detect people opening the cooler door.
l ems controllers use a motion sensor to detect people moving in front of the cooler. The motion sensor is a passive infrared device.
The diagram below shows the detection pattern of the motion sensor.
Note: ems controllers must be able to detect activity to work correctly. Therefore, blocking the view of the motion sensor
with, for example, a box of soft drinks could result in the ems controller thinking that the outlet is closed.
5.3 ready mode
ems controllers run in the ready mode when outlets are open.
In the ready mode, the product is at the correct serving temperature and the cooler lights are on.
ems controllers ensure that the product is at the correct serving temperature by keeping the product temperature within
the range defined by set point (SP) parameter and the differential (dIF) parameter.
The ems controller runs the compressor until the set point (SP) temperature is reached. The compressor is then stopped
until the measured temperature reaches the set point (SP) plus differential (dIF) temperature.
During the ready mode, ems controllers display appliance sensor temperature 3.0, for example or the word USE as defined
by display (dI S) parameter.
If the ems controller displays the appliance sensor temperature, the display stability (d2) parameter can dampen the rate of
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