Advertisement
• •
• •
•
•
• •
• •
•
•
34
can be reset only if the "F" key will be
held down for at least 2 seconds).
do.L : down alarm with latch ( the alarm
can be reset only if the "F" key will be
held down for at least 2 seconds).
Lo.S
: value of the lower Set-point limit,
programmable value: Lo(Hi) < LoS <
Hi(Lo).
Hi.S
: value of the upper Set-point
limit, programmable value: Lo.S < Hi.S
< Hi(Lo)
SEt
: value of the Set-point; program-
mable value: Lo.S < SEt < Hi.S.
HYS
: hysteresis value of the set-point.
The hysteresis is a numerical value
included within the range: 0 < HYS <
9999 and represents the difference
between the value of the ON alarm
status and the value of the OFF alarm
status. The hysteresis modifies the
value of the OFF alarm status not only
with regards to the set alarm value, but
also with regards to the alarm type: the
hysteresis value is summed to the set
value if the alarm type is "do" and
subtracted from the set value if the
alarm type is "uP".
Example:
"do" alarm, if "SEt"=2200 (value of the ON alarm status) and the
hysteresis "HYS"=12, the resulting OFF value (end of alarm status) is:
2212 (resulting from 2200 +12).
"uP" alarm, if "SEt"=2200 (value of the ON alarm status) and the
hysteresis "HYS"=12, the resulting OFF value (end of alarm status) is:
2188 (resulting from 2200 - 12).
NOTE: the hysteresis is to be programmed according to the displayed
range. This means that the hysteresys must always be much lower than
the displayed range.
• •
• •
•
•
of.d
: OFF time delay; programmable
value: 0 < OF.d < 255.
on.d
: ON time delay; programmable
value: 0 < On.d < 255.
rLY
: coil status of the relay in the
normal condition:
nd : normally de-energized coil.
nE : normally energized coil.
Note: the normally closed or open sta-
tus of the alarm contact is modified by
means of an inside selectable solder
jumper.
35
Advertisement
