Nexo CMS100

Product Manual, Issue 8 CMS100
www.nexo.comPage 36
4.3 Door alarms ‘Limp home’ mode
The limp home aspect of this alarm ensures that the cooler continues to operate with limited disruption to
the end user while determining if the door switch or the door itself is at fault. The cooler will operate during
this period, cooling the products, while a service engineer visit is scheduled.
The table below describes how the CMS100 Nexo controls the cooler during this time and what the end
user will see:
The controller manages Display
1
Audio alarm sounds for the duration of the b1 (buzzer
duration) parameter.
d0 is displayed for
the duration of Ad
(alarm delay) and
b1 (buzzer duration)
parameters
2 The compressor switches o.
3 The RT compressor rest time parameter begins.
4
In normal operation, if DIS parameter is set to 1, the
controller display will alternate between
/
In normal operation, if DIS parameter is set to 0, the
controller display will alternate between
/
5
In saving mode the controller display will alternate
between
/
6 The compressor switches on when the SP (set point) and dIF (dierential) are exceeded.
7 The compressor runs for a maximum of twenty (20) minutes.
8
The compressor switches o either; after twenty (20) minutes or when the appliance sensor
temperature has dropped to SP (set point) - whichever happens rst.
9
The controller will repeat 3, 4, 5, 6, 7 and 8 for twenty (20) cycles or until a short circuit is seen on the
door input.
If set point is achieved within twenty (20) cycles the controller reverts to
normal operation. If DIS parameter is set to 1 the controller alternately
displays: d0/Temp.
An audio alarm sounds for ten (10) seconds, every ten (10) minutes.
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