ero electronic LFS Manuel De Service page 15

The initial and full scale values determine the
input span which is used by the PID algorithm,
the SMART and the alarm functions.
NOTE: the minimum input span (S = P4 - P3), in NOTE NOTE
NOTE NOTE
absolute value, should be set as follows:
For linear inputs, S > 100 units.
For TC input with °C readout, S > 300 °C.
For TC input with °F readout, S > 550 °F.
For RTD input with °C readout, S > 100 °C.
For RTD input with °F readout, S > 200 °F.
P5 = Output 1 type P5 = Output 1 type P5 = Output 1 type P5 = Output 1 type P5 = Output 1 type
rEL = Relay [the cycle time (Cy1) will be forced to
15 s]
SSr = SSR [the cycle time (Cy1) will be forced to
4 s]
P6 = Output 1 action. P6 = Output 1 action. P6 = Output 1 action. P6 = Output 1 action. P6 = Output 1 action.
This parameter is skipped if P7 = 4
rEV = Reverse action (Heating action)
dir = Direct action (Cooling action)
REVERSE ACTION DIRECT ACTION
Input Input
t
Output Output
t
P7 = Output 2 function. P7 = Output 2 function. P7 = Output 2 function. P7 = Output 2 function. P7 = Output 2 function.
0 = output not used.
1 = it is used as alarm 1 output and the alarm 1
is programmed as process alarm.
LFS-1-CC.P65 12
2 = it is used as alarm 1 output and the alarm 1
is programmed as band alarm.
3 = it is used as alarm 1 output and the alarm 1
is programmed as deviation alarm.
4 = it is used as second control output (Cooling
output).
NOTE: setting P7 = 4, the P6 parameter is forced NOTE NOTE NOTE NOTE
to "rEV".
P8 = Cooling media. P8 = Cooling media. P8 = Cooling media. P8 = Cooling media. P8 = Cooling media.
Available only when P7 = 4
AIr = Air is used as cooling media.
OIL = Oil is used as cooling media.
H2O = Direct water is used as cooling media.
Changing P8 parameter, the instrument forces the
cycle time and relative cooling gain parameter to the
default value related with the chosen cooling media
When P8 = AIr - Cy2 = 10 s and rC = 1.00
P8 = OIL - Cy2 = 4 s and rC = 0.80
P8 = H2O - Cy2 = 2 and rC = 0.40
P9 = Alarm 1 operating mode P9 = Alarm 1 operating mode P9 = Alarm 1 operating mode P9 = Alarm 1 operating mode P9 = Alarm 1 operating mode
Available only when P7 is equal to 1, 2 or 3.
H.A. = High alarm (outside for band
alarm) with automatic reset.
L.A. = Low alarm (inside for band alarm) with
automatic reset.
H.L. = High alarm (outside band) with manual
t
reset (latched).
L.L. = low alarm (inside band) with manual reset
(latched).
t
P10 = Option feature P10 = Option feature P10 = Option feature P10 = Option feature P10 = Option feature ( see also "Display
function" and "OUT 1 failure detection")
OFF = No option
SP2 = Digital input for SP / SP2 selection.
n.O. = Set P10 to n.O. when the load is
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13/07/2004, 14:40