Alarms Configuration Menu - Fema Electronica B Series User Manual

1.13.16 Alarms configuration menu

Alarms
Alarm 1
Active
Type of alarm
Setpoint
Hysteresis
Activation
delay
Deactivation
delay
Setpoint 2
Inverted relay
Locked alarm
On alarm
To configure the alarm, access the alarm menu ('ALr1',
'ALr2' or 'ALr3') and configure the following parameters :
• at the 'Active' ('Act') parameter select 'on'
• at the 'Type of alarm' ('TypE') parameter select 'MAX'
for maximum alarm (activates when reading is higher
than setpoint), or 'MIn' for minimum alarm (activates
when reading is lower than setpoint).
• at the 'Setpoint' ('SEt') parameter configure the alarm
activation point. Parameter value is accessible through
'fast access' (see section 1.13.17).
• at the 'Hysteresis' ('hySt') parameter select the hys-
teresis value. Hysteresis applies to the alarm deactiva-
tion. Alarm deactivates once the reading is beyond the
setpoint plus the hysteresis value. Hysteresis prevents
relay switching in case of signal fluctuations close to the
setpoint value.
• at the 'Activation delay' ('dEL.0') parameter configure
the delay to apply before the alarm is activated. Delay
starts to count once the setpoint is reached. Value from
0.0 to 99.9 seconds.
• at the 'Deactivation delay' ('dEL.1') parameter config-
ure the delay to apply before the alarm is deactivated.
Delay starts to count once the setpoint is reached plus
the hysteresis value. Value from 0.0 to 99.9 seconds.
• to work with 'windowed alarms' (see Figure 8) activate
'Setpoint 2' ('SEt2') to 'on' and then configure the de-
Continue
sired second setpoint value. Second setpoint must al-
ways be higher in value than the first setpoint.
to '0'
• at the 'Inverted relay' ('r.Inv') parameter select 'on' to
to preset
invert the activation logic of the relay. Relay is inactive
when alarm is active, and relay is active when alarm is
inactive.
• at the 'Locked alarm' ('A.Lck') parameter select 'on' to
block the automatic alarm deactivation. Alarm deactiva-
tion must be performed manually, by pressing the 'LE'
front button (see section 1.13.19).
• at the 'On alarm' ('on.AL') parameter configure the ac-
tion to activate when the alarm activates. Select 'cont' to
do nothing and continue counting, select 'to_0' to load
a '0' on display, or select 'to_p' to load the preset value
on display. Selecting 'to_0' or 'to_p' configures 'dEL.1'
to 1 second.
FEMA ELECTRÓNICA . SERIES B . Models Bxx-C1
19