SMAR CD600 Plus - Page 48

CD600 Plus - User's Manual
4.28
a
)
PID
04
Akp =1
3
ATr =1
CACT = 0 OR 2
Akp =1
ATr =1
ABIA = 20%
C
A
C
T =
0
O
R 2
PID
043
OUT
S
P
SP
39
40
55
D
B
B
OUT
5
A/M
035
b)
AA
39
40
55
D
A/M
03
C
Fig. 4.10.1 - Configuration for Manual to Auto Transfer. a) Bumpless b) The Automatic
Output Starts with the Bias Value.
During the Manual to Auto transfer, it is possible to add to the initial output value (in both cases
above), a value equal to the proportional gain (AKp) multiplied by the error at that time. This is a
transfer type HARD. It can be obtained with the parameter CTYP equal to 3 or 4.
The figures 4.9.9 and 4.9.10 (Function 09) show the output behavior for the Bumpless and Hard
transfer.
MANUAL
50
OUT
CTYP = 0,1,2 OR 3
(BUMPLESS)
CTYP = 4,5 OR 6
(HARD)
OUT
50
60
SP
40
50
t
t
t
PV
INPUT D
INPUT D + Kp .
e
AUTOMATIC
Fig. 4.9.9 - Manual to Auto Transfer. The Automatic Output starts with the Last Manual
Output Value