Unigas G258A, Manual Of Installation - Use - Maintenance

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8
ConF > Cntr
Here, the type of controller, operating action, setpoint limits and presettings for self-optimization are selected
( bold = factory settings)
ConF > rAFC
Activation boiler shock termic protetion
:
RWF55.. can activate the thermal shock protection only on sites where the set-point is lower than 250°C and according to rAL parame-
ter
( bold = factory settings)
Parameter Value Description
CtYP
c
ontroller type
1
2
1 =
3-position controller (open-stop-close)
2 =
continuative action controller
(0 ÷10V
or
4 ÷ 20mA)
CACt
control action
1
0
1 =
heating controller
0 =
cooling controller
SPL
least value of the set-point
range
-1999.. 0 ..+9999
minimum set-point scale
SPH
maximum value of the set-
point range
-1999.. 100 ..+999 maximum set-point scale
Self-optimization
0
1
0 =
Free
1 =
Locked
Self-optimization can only be disabled or enabled via the ACS411 setup program.
Self-optimization is also disabled when the parameter level is locked
oLLo
set-point limitation start,
operation limit low
-1999 .... +9999 lower working range limit
oLHi
set-point limitation end,
operation limit high
-1999.... +9999 upper working range limit
Parameter Value Description
FnCT
type of contol
0
1
2
t
choose type of range degrees/time
0 =
deactived
1 =
Kelvin degrees/minute
2 =
Kelvin degrees/hour
rASL
ramp rate 0,0 … 999,9
Slope of thermal shock protection (only with functions 1 and 2)
.
toLP
tolerance band ramp
2 x (HYS1) = 10 …9999 width of tolerance band (in K) about the set-point
0 = tolerance band inactive
rAL
ramp limit
0 …250 Ramp limit. When this value is lower than the temperature set-point, the
RWF controls the output increasing the temp set point step by step accor-
ding to rASL . If this is over the temp set point, the control is performed in
cooling