EMS controllers use activity to determine when retail outlets are open and closed. Periods with activ-
ity mean the retail outlet is open, and periods without activity mean the retail outlet is closed.
EMS controllers run coolers in the ready mode during periods with activity and the saving mode during
periods without activity.
EMS controllers record the periods with and without activity in the self-learning matrix.
6.5 Activity frequency
The activity frequency (AF) determines the amount activity required for the EMS controller to con-
sider a 30-minute period as an active period. The activity frequency (AF) is normally set to require
one door opening or one motion detected to set a 30-minute period.
The activity frequency (AF) can automatically determine the most appropriate activity frequency. EMS
controllers using The EMS controller then starts the learning period after the 48 hours required to
determine the activity frequency. The EMS controller must be powered up for the complete 48 hour
period.
If power is lost during the 48 hour period, the EMS controller restarts determining the activity fre-
quency again.
6.6 How a 1-day learning period works
EMS controllers with a one day learning period, L P set to 0, run in the ready mode for 1 day, (24
hours),whilst the EMS controller learns the outlet activity pattern such as opening and closing times.
EMS controllers start self-learning the moment the EMS controllers are first powered-up.
At power-up, all the 30 minute periods are set to monitor (1) as shown in the following example mat-
rix.
For periods set to monitor (1), EMS controllers run in the ready mode.
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27 February 2014
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