MODEL: WJFT
■DELAY BUFFER
•Step Input with Time Constant
This unit generates a first order lag output.
INPUT
1
X0
(s) =
X1 (s)
1 + T s
0
X
0
1
: output
: input
t
X
OUTPUT
T : time constant
(0.0 to 100.0 second adjustable)
0
t
T
■ LEAD-TIME COMPUTING
This unit operates a lead-time equation.
•Step Input with Time Constant (Lead)
INPUT
X
0
(s) = (1 + T s) X1 (s)
0
X
X
0
1
: output
: input
t
OUTPUT
T : lead-time constant
(0.0 to 100.0 seconds adjustable)
0
t
T
•Step Input with Rate-of-Change Limit
■ RAMP BUFFER
This unit output does not change faster than a preset
maximum rate, positive CP and negative CN, no mat-
ter how fast its input changes.
INPUT
0
OUTPUT
CP: maximum rate of positive output change
(0.00 to 200.00%/second adjustable)
t
CN: maximum rate of negative output change
(0.00 to 200.00%/second adjustable)
0
t
CP
CN
•Example (N=5, U=1, L=1)
■ MEAN AVERAGE OUTPUT
This unit samples input signals every H seconds and,
excluding U numbers of largest samples and L num-
bers of smallest samples, outputs proportionally to an
average of the rest [N – (U + L)] of sampled data. When
the numberofsamplestobecalculatedequals0orless,
it outputs an error.
INPUT
t
IN 1
IN 2
OUTPUT
H : sampling cycle
(0.1 to 100.0 seconds adjustable)
N : number of samples to be calculated
(2 to 8 adjustable)
t
OUT 1
OUT 2
U : number of largest samples to be cut off
(0 to 7 adjustable)
L
: number of smallest samples to be cut off
(0 to 7 adjustable)
WJFT SPECIFICATIONS
ES-2279 Rev.8 Page 5/6
http://www.m-system.co.jp/