Super Systems X5 - Manual (Page 47)

47
4 - Operation
Stored Setpoint
Tracking
(see chapter 4.3.2 at page 27)
Two different operation mode
can be set:
A Stand-by mode
# no
The selection of any memorized
SP (SP1, SP2, SP3) does not
overwrite the previous local
Setpoint when the memorized
SP is no longer active. The pre-
vious local SP in unchanged.
B- Tracking mode #yeS
The use of any memorized SP
(SP1, SP2, SP3) overwrites the
local SP value.
The previous Local Setpoint
value will be lost.
#S.P.tr
Remote Setpoint Bias and Ratio
bias = 20
ratio = 0.1
ratio = –0.1
Remote
signal
Range
600 100 20 0
Remote
Setpoint span
10V
bias = 100
a b
a´ b´
-200 °C
HR a (b ´ ) b (a ´ ) LR
Remote
Setpoint Ratio
Ratio is the coefficient which
defines the remote Setpoint
span with respect to the input
span.
Remote
Setpoint
Bias defines the starting point of
analog Remote Setpoint in engi-
neering units corresponding to
the low limit (current or voltage)
of the remote signal.
#bias
#rtio
PV = Process Variable
LR = PV low limit
HR = PV high limit
SR = Remote Setpoint
a (a´) = SR starting point
b (b´) = SR ending point
X5-SSI-uk 18-03-2009 17:54 Pagina 47