Toshiba PROSEC T3H - Manual (Page 50)

48
PROSEC T3H
2. Expanded Functions
PID algorithm:
∆ ∆ ∆ ∆
∆
MV K P I D
MV MV MV
n n n n
n n n
P
= ⋅ + +
= ±
−
( )
1
Here,
∆
P e e
e SV PV
n n n
n n n
= −
= −
− 1
∆
∆
I
e t Ir
T
n
n
I
=
⋅ +
∆
∆
∆
∆
D
T PV PV t D Dr
t T
D D D
n
n n n
n n n
D
D
=
⋅ − − ⋅ +
+ ⋅
= +
=
− −
−
( )
.
1 1
1
0 1
η
η
Parameter details
A Process input value PVC (0.00 to 100.00 %) Data range: 0 to 10000
A+1 Auto mode set value ASV (0.00 to 100.00 %) Data range: 0 to 10000
A+2 Cascade mode set value CSV (0.00 to 100.00 %) Data range: 0 to 10000
A+3 Manual mode MV MMV (-25.00 to 125.00 %) Data range: -2500 to 12500
A+4 MV tracking input TMV (-25.00 to 125.00 %) Data range: -2500 to 12500
A+5 Mode setting MODE
F C 8 4 0
Operation mode
00 : Manual mode
01 : Auto mode
10 : Cascade mode
11 : (Reserve)
Tracking designation
0 : No
1 : Yes
B Proportional gain K
P
(0.00 to 327.67) Data range: 0 to 32767
B+1 Integral time T
I
(0.000 to 32.767 min., stop if T
I
= 0) Data range: 0 to 32767
B+2 Derivative time T
D
(0.000 to 32.767 min.) Data range: 0 to 32767
B+3 Gap (dead-band) GP (0.00 to 10.00 %) Data range: 0 to 1000
B+4 Auto mode initial set value ISV (0.00 to 100.00 %) Data range: 0 to 10000
B+5 Input filter constant FT (0.000 to 0.999) Data range: 0 to 999
B+6 ASV differential limit DSV (0.00 to 100.00 %/
∆
t) Data range: 0 to 10000
B+7 MMV differential limit DMMV (0.00 to 100.00 %/
∆
t) Data range: 0 to 10000
(If GP
≠
0, Gap is applied)
(If T
I
= 0,
∆
I
n
= 0)
(Fixed)