Reference Manual
Power Analyzer EMM5
Rev. 11
2018-07
14
4.6.3
Alarm
This submenu contains all settings, which have to be performed in order to use the EMM5 alarm system. The menu
contains a set of different settings, between which the user can select with the “
” key.
ALARM: Move the “>” to this line and use “+” and “-“ to select one of the 32 alarms. Each alarm compares one
source value to a limit and, if the trigger condition is met, activates the outputs.
SOURCE: Use the “+” and “-“ keys to select the appropriate source for the alarm. This is the value which is
compared to the limit by the alarm system.
TRIGGER: Use the “
” key to select the condition under which the alarm is considered to be active. Possible
values are “VAL>LIMIT” (alarm if selected source value is bigger than limit) and “VAL<LIMIT” (alarm if selected
source value is smaller than limit). For the source values which are of reactive nature (reactive power, cp) the
display shows “+ind” or “+cap” for the trigger setting. This has to be interpreted as “more inductive than limit”
or “more capacitive than limit”.
LIMIT: The limit value can be set here. Press the “
” key to enter a value.
T-ON / T-OFF: Use these items to enter delay times for activation and deactivation of alarm relays in a range
of 0-600 seconds with steps of 10 ms.
OUTPUT: Here you can choose to which of the relays an activation signal will be sent once the alarm is active
and the on-delay time is over. The alarm message display can also be selected here. In the following submenu
“+” and “-“ select the different alarm outputs and the “
” key chooses, whether the relay or display message
will be activated on alarm or not.
Some of the alarm settings may not get active until the alarm menu is leaved because at that time, a
great part of the entered values is given to the alarm subsystem for execution. This is done to inhibit the
alarm subsystem from executing weird intermediate settings while the user enters an new alarm setup.
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