Unigas G258A, Manual Of Installation - Use - Maintenance

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• Out
Out
Output settings
Select
reference
signal for
alarm1
AL.1.r
AL.x.r Variable to be compared
0 PV (process variable)
2/3 for
alarm 1
AL.x.t Direct (high limit) Absolute or Normal
Inverse (low limit) relative to Symmetrical
active setpoint (window)
2 direct relative normal
3 inverse relative normal
AL.1.t
a1.r
a1.t
rl.1
rl.2
rl.3
Out 1
Allocation of
reference signa
Out 2
Allocation of
reference signa
Out 3
Allocation of
reference signa
rL.o.1, rL.o.2, rL.o.3, rL.o.4
Val Function
0
1
2 AL1 - alarm 1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 -
18 OPEN valve
19 CLOSE valve
0
3
2
18
19
rel
Fault action (sets state in
case of probe fault)
Err, Sbr
_rEL. Alarm OUT OUT
1 2 3
0 OFF OFF ON
1 ON OFF ON
a.ty
Valves
control type
0 disabled
1 V0 Heat action
3 V3 Heat action
+8 valve manual control with “Raise” and “Lower”
keys
ac.t
dE.b
Actuator travel time (time employed by the valve to change from entirely
open to entirely closed)
0 ... 2000 sec
Impulse min. time/actuator travel time
(useful to avoid excessive valve activity)
0.0 ... 25.0% Ac.t
Impulsive intervention threshold as
percentage of valve opening time
0.0 ... 100.0% Ac.t
Dead zone which can be set as a percentage of the bottom of
scale, positioned below the setpoint (if the variable is within this
band the valve is immobile and the integral action is blocked).
Only for control of valve type V0
0.0 ... 25.0% f.s.
t.lo
t.xi
Minimum time for valve movement or valve
ON time in movement mode
0.0 ... 100.0% Ac.t
t.on
Valve OFF time in movement mode.
NB: 0 = exclude t.off
A value set < t.oF is forced to t.on
0.0 ... 100.0% Ac.t
t.of
0
9
12
2.0
0.0
2.0
0.0
0.1
6 80379_MHW_600V-T73_06-2012_ENG