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Les langues disponibles
Les langues disponibles
SET POINTS
SET POINTS
SET POINTS
SET POINTS
SET POINTS
This instrument allows to use 2 set points: SP and
SP2.
The set point selection is possible only by logic
input.
Set point transfer
Set point transfer:
Set point transfer
Set point transfer
Set point transfer
The transfer between one set point to another (or
between two different set point values) may be
realized by a step transfer or by a ramp with two
different programmable rate of change (ramp up
and ramp down).
Slope value
Slope value
Slope value: 1 - 100 eng. unit/min or step.
Slope value
Slope value
Set points limiter: RLO and RHI parameters, pro-
Set points limiter
Set points limiter
Set points limiter
Set points limiter
grammable.
CONTROL ACTIONS
CONTROL ACTIONS
CONTROL ACTIONS
CONTROL ACTIONS
CONTROL ACTIONS
Control action
Control action
Control action
Control action
Control action: PID + SMART
Type
Type
Type
Type
Type: One (heating or cooling) or two (heating
and cooling) control outputs.
Proportional Band (Pb):
Proportional Band
Proportional Band
Proportional Band
Proportional Band
(Pb):
(Pb):
(Pb):
(Pb):
Range: - from 1.0 to 100.0 % of the input span
for process with one control output.
- from 1.5 to 100.0 % of the input span
for process with two control outputs.
When Pb=0, the control action becomes ON/OFF.
Hysteresis
Hysteresis
Hysteresis (for ON/OFF control action):
Hysteresis
Hysteresis
from 0.1% to 10.0% of the input span.
Integral time (Ti)
Integral time (Ti): from 1s to 20 min. or
Integral time (Ti)
Integral time (Ti)
Integral time (Ti)
excluded.
Derivative time (Td): from 1 s to 10 min.
Derivative time (Td)
Derivative time (Td)
Derivative time (Td)
Derivative time (Td)
If zero value is selected, the derivative action is
excluded.
Integral pre-load
Integral pre-load
Integral pre-load
Integral pre-load
Integral pre-load:
- from 0.0 to 100.0 % for one control output
- from -100.0 (cooling) to +100.0 % (heating) for
two control outputs.
LFSMA-1-B.pmd
29
SMART
SMART: keyboard enabling/disabling
SMART
SMART
SMART
Auto/Manual
Auto/Manual
Auto/Manual: selectable by front pushbutton.
Auto/Manual
Auto/Manual
Auto/Manual transfer
Auto/Manual transfer
Auto/Manual transfer
Auto/Manual transfer
Auto/Manual transfer: bumpless method type
Indicator "MAN" : OFF in auto mode and lit in
Indicator "MAN"
Indicator "MAN"
Indicator "MAN"
Indicator "MAN"
manual mode.
OUTPUTS
OUTPUTS
OUTPUTS
OUTPUTS
OUTPUTS
Type: The LFS-mA is equipped with 3 independ-
Type
Type
Type
Type
ent outputs programmable as follows:
Out 1
Out 2
linear (mA)
relay
Heating
AL1
Heating
Cooling
Heating
AL1
Cooling
AL1
Cooling
Heating
Cooling
AL1
Retransm.
Heating
Retransm.
AL1
Retransm.
Cooling
Retransm.
AL1
Retransm.
Heating
Retransm.
Cooling
Retransm.
AL1
Control output updating time
Control output updating time
Control output updating time
Control output updating time
Control output updating time :
- 250 ms when a linear input is selected
- 500 ms when a TC or RTD input is selected.
Action
Action
Action
Action: direct/reverse programmable by front
Action
keyboard.
Output level indication:
Output level indication:
Output level indication:
Output level indication:
Output level indication:
The instrument displays separately the output 1
level (heating) and the output 2 level (cooling).
Output status indication: the OUT 1 LED will
Output status indication
Output status indication
Output status indication
Output status indication
flash with a duty cycle proportional to the output 1
power. Two indicators (OUT 2 and/or OUT 3) are
lit when the respective output is in ON condition.
GB
GB
GB
GB
GB
29
29/05/2006, 9.23
Out 3
relay
AL2
AL2
Cooling
AL2
AL2
Heating
AL2
Heating
AL2
Cooling
Cooling
Heating
AL2
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