Super Systems 7EK 31080 User Manual

Page 18

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P35 =

Minimum value of the proportional band
calculated by the SMART algorithm when the
instrument has one control output.

This parameter is skipped if P7 = 4 or P31=0.
It is programmable from 1.0 % to P33 value.

P36 =

Minimum value of the integral time calculated
by the SMART algorithm.

This parameter is skipped if P31=0.
It is programmable from 1 second (00.01) to 2 minutes

P37 =

Device status at instrument start up.

This parameter is skipped when P30 = OFF.
0 =

the instrument starts in AUTO mode.

1 =

It starts in the same way it was prior to the power shut
down. If the instrument was in manual mode, the power
output will be set to 0.

P38 = NOT AVAILABLE

P39 = Timeout selection
This parameter allows to set the time duration of the
timeout for parameter setting used by the instrument
during the operating mode.
tn. 10 = 10 seconds
tn 30 = 30 seconds

P40 = Digital filter on the displayed value
It is possible to apply to the displayed value a digital filter
of the first order with a time constant equal to:

- 4 s for TC and RTD inputs
- 2 s for linear inputs

noFL. = no filter
FLtr = filter enabled

P41 = Conditions for output safety value
0 = No safety value (see "Error Messages")
1 = Safety value applied when overrange or underrange

condition is detected.

2 = Safety value applied when overrange condition is

detected.

3 = Safety value applied when underrange condition is

detected.

P42 = Output safety value
This parameter is skipped when P41 = 0
This value can be set
- from 0 to 100 % when P7 is different from 4
- from -100 % to 100 % when P7 is equal to 4

P43 = Extension of the anti-reset-wind up
Range: 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).

P44 =

Control action type

Pid

- the instrument operates with a PID algorithm.

Pi

- the instrument operates with a PI algorithm.

P45 = Set point indication
Fn.SP =

during operative mode, when the instrument
performs a ramp, it will show the final set point
value.

OP.SP = during operative mode, when the instrument

performs a ramp, it will show the operative set
point.

P46= Operative set point alignment at instrument start

up.

0 = At start up, the operative set point will be aligned to

SP or SP2 according to the status of the logic input.

1 = At start up, the operative set point will be aligned to

the measured value an then it will reach the selected
set point with a programmable ramp (see Grd1 and
Grd2 operative parameters).

NOTE: if the instrument detects an out of range or an
error condition on the measured value it will operate as
described for P46 = 0.

31080-1-00.p65

3/24/00, 11:58 AM

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