Super Systems 7EK 31081 User Manual

Page 19

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P27 = Alarm 1 action
Available only when P9 = AL1.P, AL1.b or AL1.d.
dir

= direct (relay energized in alarm condition)

rEV = reverse (relay de-energized in alarm condition)

P28 = Alarm 1 stand-by function (mask)
Available only when P9 = AL1.P, AL1.b or AL1.d.

OFF = stand-by function disabled
On = stand-by function enabled

NOTE: If the alarm is programmed as band or deviation
alarm, this function masks the alarm condition after a set
point change or at the instrument start-up until the
process variable reaches the alarm threshold plus or
minus hysteresis. If the alarm is programmed as a
process alarm, this function masks the alarm condition at
instrument start-up until process variable reaches the
alarm threshold plus or minus hysteresis.

P29 = Alarm 2 action
Available only when P12 = AL2.P, AL2.b or AL2.d.
dir

= direct (relay energized in alarm condition)

rEV = reverse (relay de-energized in alarm condition)

P30 = Alarm 2 stand by function (mask)
Available only when P12 = AL2.P, AL2.b or AL2.d.

OFF = Stand by disabled
On = Stand by enabled

P31 = Alarm 3 action
Available only when P14 is different from nonE and P51 is
different from diS.
dir

= direct (relay energized in alarm condition)

rEV = reverse (relay de-energized in alarm condition)

P32 = alarm 3 stand by function (mask)
Available only when P14 is different from nonE.

OFF = Stand by disabled
On = Stand by enabled

P33 = OFFSET applied to the measured value
This will set a constant OFFSET throughout the readout
range. It is skipped for linear inputs.
-

For readout ranges with decimal figure, P33 is
programmable from -19.9 to 19.9.

P23 =

Power output of the secondary control output
(cooling)

This parameter is available only when two control outputs
are programmed.
It is applied to the control output with direct action.
norL = the power output assigned to the secondary

control output is the result of the PID algorithm.

cñPL = the power output assigned to the secondary

control output is the complement of the PID result
(100 - value calculated by PID algorithm).

P24 =

Power output displayed for the secondary
control output (cooling)

This parameter is available only when two control outputs
are programmed.
It is applied to the control output with direct action.
norL = the display will show the result of the PID

algorithm calculated for the secondary control
output.

cñPL= the display will show the complement to the result

of the PID algorithm calculated for the secondary
control output
(100 - value calculated by PID algorithm).

P25 = Cooling media.
Available only when two control outputs are programmed.
AIr = Air

OIL = Oil
H2O = Water

Changing P25 parameter, the instrument forces the cycle
time and relative cooling gain parameter to the default value
related with the chosen cooling media.
When P25 = AIr

- CYx = 10 s and rC = 1.00

P25 = OIL

- CYx = 4 s and rC = 0.80

P25 = H2O

- CYx = 2 s and rC = 0.40

P26 =

Relative cooling gain calculated by SMART
function.

This parameter is present only when two control outputs
are programmed.
OFF = SMART algorithm does not calculate the rC

parameter value

On = SMART calculates the rC parameter value.

31081-1-00.p65

3/24/00, 11:59 AM

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