4.3
Indicators
The EMS controller LED indicators are as follows:
Indicator
Function
Colour
Compressor
On when the compressor is running.
Green
Fan
On when the evaporator fan is running.
Green
Saving temperature
disable
On if the saving temperature is disabled.
The EMS controller maintains the
ready mode
temperature at all
times.
Red
Motion
On when motion sensor detects motion.
If the motion sensor is flashing continuously, the motion sensor may
be faulty.
Red
4.4
Display codes
The table below details the display codes for EMS controllers.
Display
State
Description
Ready mode
EMS controllers display the appliance sensor (cooler cabinet) tem-
perature, or the word
US E
Also, the cooler lights are switched on.
See "How to check that EMS controllers are working correctly" on
page 57
Saving mode
EMS controllers keep products at the saving mode
temperature unless the saving temperature is disabled.
The saving temperature LED shows whether the saving mode tem-
perature is disabled.
The cooler lights are off unless the light delay (
L d
) parameter
keeps the lights on for a short period after the EMS controller
switches to the
saving mode
.
The marketing mode (
Ar
) keeps the lights on for the duration of
the
saving mode
.
Defrost mode
EMS controllers switch off the compressor and switch on the fan, if
applicable.
The compressor LED should be off and the evaporator fan LED
should be on.
Door open
EMS controllers display
d0
to show that the cooler door is open.
Alarm:
Door open
EMS controllers sound an alarm buzzer if cooler door remain open
for alarm delay (
Ad
) duration.
If the cooler door is still open after the time defined by the buzzer
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