West Control Solutions Pro-8 - Manual (Page 55)

7 Programmer
Programmer set-up:
For using the controller as a programmer, select parameter
Cntr /SP.Fn = 1 in
the ConF menu. The programmer is started via one of digital inputs di1..3 or the
è key. Which input shall be used for starting the programmer is determined by
selecting parameter
LOGI/P.run = 2 / 3 / 4 / 5 in the ConF menu according-
ly. For assigning the program end as a digital signal to one of the relay outputs,
parameter
P.End = 1 must be selected for the relevant output OUT.1...OUT.3 in
the ConF menu.
Programmer parameter setting:
A programmer with 4 segments is available to the user. Determine a segment du-
ration
Pt.01 .. Pt.04 (in minutes) and a segment target set-point SP.01 ..
SP.04 for each segment in the PArA menu.
Starting/stopping the programmer:
Starting the programmer is done by a digital signal at input di1..3 or the è key
selected by parameter
P.run. The programmer calculates a gradient from seg-
ment end setpoint and segment time.
This gradient is always valid. Normally, the programmer starts the first segment
at process value. Because of this the effective run-time of the first segment may
differ from the at
PArA level setted segment time (process value ¹ setpoint).
After program end, the controller continues controlling with the target set-point
set last. If the program is stopped during execution (signal at digital input di1..3
or the è key is taken away), the programmer returns to program start and waits
for a new start signal.
+
Program parameter changing while the program is running is possible.
Changing the segment time:
Changing the segment time leads to re-calculation of the required gradient. When
the segment time has already elapsed, starting with the new segment is done di-
rectly, where the set-point changes stepwisely.
Changing the segment end setpoint:
Changing the set-point leads to re-calculation of the required gradient, in order to
reach the new set-point during the segment rest time, whereby the required gra-
dient polarity sign can change.
Programmer
Pro-8
55
W,X
W,X W
SP.01
Pt.01
SP.02
Pt.02
SP.09
Pt.03
SP.10
Pt.10 t