OPM_LPS_33E_10K_30K_4CN_V010.doc 54/82 Operating Manual LP 33 / 10-20-30 kVA
18. Enabling time in function of weekdays
IEM Hours Saturday / Friday
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1. Enabling time in function of weekdays.
For the weekdays from d1 to d7 (Saturday to Friday) the
edit mode (edit day) allows to define time intervals when
the UPS is operating in IEM mode.
The hour is given in 24-hour format. These intervals are defined by:
IEM START: the hour of the day after which the IEM mode is enabled.
The IEM mode is enabled until the following IEM STOP time is reached (the
IEM STOP time of the same day if this is later than the IEM START time, the
IEM STOP time of the following day otherwise).
IEM STOP: the hour of the day before which the IEM mode is enabled.
The IEM mode is enabled starting from the preceding IEM START time (the IEM START time
of the same day if this is earlier than the IEM STOP time, the IEM START time of the previous
day otherwise).
Identical times for IEM START and IEM STOP mantain the existing mode only in case the
previous command was IEM START and the following command will be IEM STOP.
2. IEM Hours: The number of IEM mode hours per weekday (from Saturday to Friday) is
displayed in the operation mode parameter window (ceiling value).
To better understand the IEM programming modes, some typical examples are shown:
Example 1: For continuous IEM mode set the IEM START times to 00:00 and the IEM STOP
times to 23:59 for all weekdays, but almost 1 day must have 1 minute of On-line
programmation: i.e Sunday 00:00 to 23:58).
Weekday
Saturday Sunday Monday Tuesday Wednesday Thursday Friday
IEM START
00:00 00:00 00:00 00:00 00:00 00:00 00:00
IEM STOP
23:59 23:58 23:59 23:59 23:59 23:59 23:59
Example 2: IEM STOP before IEM START.
IEM START 18:00, IEM STOP 06:00 for weekday Tuesday.
Means that on Tuesday the IEM mode is active between 00:00 and 06:00 and
between 18:00 and 23:59.
Weekday
Saturday Sunday Monday Tuesday Wednesday Thursday Friday
IEM START
00:00 00:00 00:00 18:00 00:00 00:00 00:00
IEM STOP
23:59 23:59 23:59 06:00 23:59 23:59 23:59
Example 3: IEM mode during the night and week-end.
If the IEM mode must be enabled all nights (Monday to Friday) between 18:00 in
the evening and 06:00 of the following morning and during all Saturday and
Sunday, the corresponding parameters are:
Weekday
Saturday Sunday Monday Tuesday Wednesday Thursday Friday
IEM START
00:00 00:00 18:00 18:00 18:00 18:00 18:00
IEM STOP
23:59 23:59 06:00 06:00 06:00 06:00 06:00
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