BEKA BA314E, Manual

Page: 37 / 58

9.3.4 Alarm enable:
EnbL
This function allows the alarm to be enabled or
disabled without altering any of the alarm parameters.
Using the
&
or
*
push button select
AL1
or
AL2
from
the configuration menu and press
(
to access the
alarm sub-menu. Press the
&
or
*
button until
EnbL
is displayed followed by
(
which will reveal if
the function is
on
or
off.
The setting can be changed
by pressing the
&
or
*
push button followed by the
)
button to return to the alarm sub-menu.
9.3.5 Type of alarm:
tYPE
Alarm 1 and Alarm 2 are totally independent, both
may be speed or run-time alarms, or one may be
conditioned for speed and the other for run-time.
Using the
&
or
*
push button select
tYPE
from the
selected alarm sub-menu and press
(
to check or
change the function. The
&
or
*
push button will
toggle the selection between
5PEEd
and
Hour5
, when
set as required press the ) button to return to the
alarm sub-menu.
Note: When
tYPE
is changed, the alarm
configuration is automatically reset to the
default values and the alarm is disabled. It
must therefore be reconfigured before use.
9.3.6 Setpoint adjustment:
5P1.
x &
5P2.
x
The speed alarm setpoints
5P1.5peed
and
5P2.5peed
may be positioned anywhere between
0000000
and
9999999
, and the run-time alarm setpoint
5P1.Hour5
and
5P2.Hour5
anywhere between
0000.0
and
9999.9
hours.
All the setpoints are adjusted in the same way, for
example, to adjust the setpoint of Alarm 1 which has
been configured to operate on the speed display.
Using the
&
or
*
push button select
5P1.5peed
in
the
AL1
sub-menu and press
(
which will reveal the
existing setpoint with one digit flashing. The required
setpoint can be entered using the
&
or
*
push
button to adjust the flashing digit and the
(
button to
transfer control to the next digit. When set as
required press
)
to enter the value and return to the
5P1.5peed
prompt in the alarm 1 sub-menu.
9.3.7 Alarm function:
Hi . Lo
Alarm 1 and Alarm 2 are totally independent, both
may be Hi or Lo, or one may be conditioned as a Hi
alarm and the other as a Lo alarm.
Using the
&
or
*
push button select
Hi . Lo
from the
selected alarm sub-menu and press
(
to check or
change the function. The
&
or
*
push button will
toggle the alarm function between
Hi
and
Lo
, when
set as required, press the
)
button to return to the
Hi . Lo’ prompt in the alarm sub-menu.
9.3.8 Alarm output status:
no . nC
Each single pole alarm output may be open or
closed in the non-alarm condition. When the
BA314G or BA318E power supply is turned off or
disconnected, the alarm output(s) will open
irrespective of whether normally open or normally
closed outputs have been selected. Therefore,
when designing an alarm system normally closed
nc
should be selected so that the output opens when an
alarm occurs or if the power supply fails.
Using the
&
or
*
push button select
no . nC
from
the selected alarm sub-menu and press
(
to check
or change the function. The
&
or
*
push button
will toggle the contact status between
no
and
nC
,
when set as required, press the
)
button to return
to the
no . nC
prompt in the alarm sub-menu
9.3.9 Hysteresis:
H5tr
Hysteresis is only available on speed alarms so the
H5tr
function only appears in the configuration sub-
menu when alarm
tYPE
has been set to
5PEEd
.
During configuration hysteresis is shown in the units
of
5PEED
previously configured for the Tachometer
display.
Using the
&
or
*
push button select
H5tr
in the
selected alarm sub-menu and press
(
which will
reveal the existing hysteresis with one digit flashing.
The required hysteresis can be entered using the
&
or
*
push button to adjust the flashing digit and
the
(
button to transfer control to the next digit.
When set as required press
)
to enter the value
and return to the
H5tr
prompt in the alarm sub-
menu.
e.g. A Tachometer configured to display a rotational
speed of 0 to 500 RPM, with a high alarm set at
400 RPM and hysteresis of 10 RPM will perform as
follows:
The high alarm will be activated when speed
equals or exceeds 400 RPM, but will not reset
until the speed falls below 390 RPM.
9.3.10 Alarm delay:
dELA
This function enables activation of the alarm output
to be delayed for a fixed time following the alarm
condition occurring. The delay can be set in 1
second increments up to 3600 seconds. If a delay is
not required zero should be entered.
To adjust the delay select
dELA
using the
&
or
*
push button in the selected alarm sub-menu and
press
(
which will reveal the existing delay time in
seconds with one digit flashing. The required delay
time can be entered using the
&
or
*
push button
to adjust the flashing digit and the
(
button to
transfer control to the next digit. When set as
required press
)
to enter the value and return to
the
dELA
prompt in the alarm sub-menu.
37