gefran 2500 User Manual

Limit of power supplied under
LBA alarm condition
[-100.0 ... +100.0] %
Manual power assumed at power
ON or when switching Auto/Man
[-100.0 ... +100.0] % ON/OFF
Fault Action Power
(supplied under open circuit condition)
[-100.0 ... +100.0] % ON/OFF
Delta of manual power value raise/lower in impulse mode
(from keys or digital inputs if enabled) [0.1 ... 100.0] %/impulse
If the LBA alarm is active, it can be cancelled by pressing the
+ keys when the value of the control output (OutP),
or by switching to Manual mode.
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
LBA alarm trip delay time
[0.0 ... 500.0] min
If set to “0”, the LBA alarm is disabled.
If the LBA alarm is active, it can be cancelled by pressing the
+ keys when the value of the control output (OutP),
or by switching to Manual mode.
B
[(FG.Pd]
Dead time
[0.0 ... 9999.9] sec.
available from future version
Process again
[0.1 ... 10.0]
available from future version
Process time constant
[0.0 ... 9999.9] sec.
available from future version
Dead band
(symmetrical tol Setpoint)
[0 ... 999] scale points
Manual Reset
[-999 ... +999] scale points
Antireset
[0 ... 9999] scale points
Feed forward
[-100.0 ... +100.0] %
Soft Start Time
[0.0 ... 500.0] min
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
SV
F
PV
rSt
A.rS
FFd
Pr,dt
Pr,GA
Pr,t1
d.b
SoF
Lb.t
Lb.P
AM.P
i
FA.P
GSP
St.vd
SV
F
PV
GS2
Gradient for control output
(see “Applicative Notes”)
[0.0 ... 100.0] %/sec
SV
F
PV
G.0vt
Manual Reset is added to the setpoint value to compen-
sate the error at full speed.
It is applied in case of P or PD control, and lets the
setpoint be reached.
It defines the band around the setpoint within which inte-
gral action is active.
If set to zero, antireset is disabled.
If other than zero, the set value corresponds to the contri-
bution to the control output when the setpoint is equal to
full scale. For lower setpoint values, this contribution takes
on a proportional value.
Corresponds to the ratio between the value of the Process
Variable (as a percentage of f.s.) and the corresponding
percentage value of the control output.
Corresponds to the time the system needs to reach 70%
of the final value due to a step change in the control
output.
If set to other than zero, the control output does not chan-
ge with respect to the setpoint within such symmetrical
band.
This is the time the process needs to respond to a change
in the control output.
Set Gradient / Gradient for setpoint 1 with Multiset enabled
(see “Applicative Notes”)
[0.0 ... 999.9] digit/min
Unit of measurement digit/sec: adding + 16 to
value of parameter Lr.t on (FG menu.
Set Point 2 Gradient
(considered only if Multiset is enabled)
[0.0 ... 999.9] digit/min
N.B.: the active LBA alarm condition is indicated by the
flashing of the variable display
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gefran 2500 Specifications

General

Brand	gefran
Model	2500
Category	Controller
Language	English