ero electronic LDE - 5. OPERATIVE MODE; 5.2 SMART ALGORITHM

11
GB
P19 = Automatic calculation of "relative
cooling gain"
This parameter is only present if P5 is 5 and P15
is not 0.
OFFOFF
OFFOFF
OFF = the SMART function does NOT calculates
the "relative cooling gain".
ONON
ONON
ON = the SMART function calculates the
"relative cooling gain".
P20 = Minimum integral time value calculated
by the SMART function
This parameter is only present if P15 is not 0.
It can assume the following values:
model LME: between 0.1 (10 seconds) and 2.0 (2
minutes)
model LDE: between 00.01 (1 second) and 2.00
(2 minutes).
P21 = Extension of the anti-reset-wind up
Span: from -30 to +30 % of the proportional band.
NOTE: a positive value increases the high limit of
the anti-reset-wind up (over set point) while a
negative value decreases the low limit of the anti-
reset-wind up (under set point).
P22 - Option selection (Out 3 or digital input)
0 = no option is present
1 = Alarm 2 output - Process alarm
2 = Alarm 2 output - Band alarm
3 = Alarm 2 output - Deviation alarm
4 = Digital input used for SP/SP2 selection.
5 = Timer mode 1 (see below)
6 = Timer mode 2 (see below)
7 = Timer mode 3 (see below)
8 = Timer mode 4 (see below)
9 = Timer mode 5 (see below)
10= Timer mode 6 (see below)
11= Timer mode 7 (see below)
Note:
1) Select P22 value in accordance with the
installed hardware.
2) Setting P22 equal to 1, 2 or 3, if
AL2AL2
AL2AL2
AL2 parameter
is out of range, it will be aligned to its low limit.
3) Setting P22 equal to 4, 5 or 8, if
SP2SP2
SP2SP2
SP2 parameter
is out of range, it will be aligned to
rLrL
rLrL
rL value.
4) Setting P22 equal to 6 or 7, P5 parameter will
be forced to 0 and if
SP2SP2
SP2SP2
SP2 parameter is out of
range, it will be aligned to
rLrL
rLrL
rL value.
5) Setting P22 equal to 9 or 10, P5 parameter will
be forced to 0.
6) When P22 parameter pass from a value equal
or greater than 9 to e value lower than 9, at the
next start up the controll output will be forced to
"enabled".
Timer functions
Notes about all timer modes:
1) At power off the time value and status will be reset.
2)The time parameter (
tt
tt
t) can always be modified
but the new value become operative at the next
start time only.
lxe-1-B00.p65 10/18/02, 3:47 PM11