Fema M Series, User Manual, Page: 15 / 36

FEMA ELECTRÓNICA . SERIES M . M60-LC
15
Alarm 1
Setpoint
Hysteresis
Active
Type of alarm
Setpoint 2
Alarms
Activation
delay
Deactivation
delay
Inverted relay
Locked alarm
Stability Stability band
Stability time
Alarms 1, 2 and 3 are configured from menu ‘ ALr1 ’, ‘ ALr2 ’ or
‘ ALr3 ’. See section
1.12.8
for additional information.
• 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. Value accessible through the ‘ fast access ’
menu
(see section 1.12.13) .
• at the ‘ Hysteresis ’ (‘ hySt ’) parameter, select the hyster -
esis value. Hysteresis applies to the alarm deactivation.
Alarm deactivates once the reading is beyond the set -
point plus the hysteresis value. Hysteresis prevents relay
switching in case of signal fluctuations close to the set -
point 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 .
• at the ‘ Stability ’ (‘ StbL ’) parameter, configure the con -
ditions to detect stability at the signal and activate the
alarm. Value ‘0’ at ‘stability band’ or at ‘stability time’ de -
activate the stability control of the alarm.
- at the ‘ Stability band ’ (‘ bAnd ’) parameter, configure the
number of counts that the reading can change and still be
considered stable. Values from 0 to 999999. Default is 10.
- at the ‘ Stability time ’ (‘ tIME ’) parameter, configure the
time, in tenths of second, that the reading must be within
the ‘stability band’ to be considered stable. Values from 0.0
to 99999.9. Default is 0.0.
• to work with ‘windowed alarmas’ configure ‘ Setpoint 2 ’
(‘ SEt2 ’) to ‘ on ’ and configure the value for the second set -
point. The second setpoint must always be higher than the
first setpoint.
• at the ‘ Inverted relay ’ (‘ r.Inv ’) parameter, configure ‘ on ’
to invert the activation 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, configure ‘ on ’
to block the automatic alarm deactivation. Alarm deactiva -
tion must be performed manually, by pressing the front key
‘LE’ (
3
)
(see section 1.12.12)
or rear control
(see section
1.12.11) .
1.12.9 Alarm configuration