26
PU-2A USERS
MANUAL EM-9255-C Rev.14
■
MOVING AVERAGE OUTPUT model xJFT1 (Group 01)
ITEM
MDFY.
DATA INPUT
DISPLAY
CONTENTS
23
P
FUNCTION TYPE
0
0: NO FILTER
Without the function
1
1:
RUNNING AVE
With the moving average output
24
25
P
P
0.1 – 100.0
1 – 8
H
N
XXX.X
X
Sampling cycle “H” (seconds)
“N” number of samples to be calculated
[FUNCTION]
The xJFT1 samples input signals every H seconds and out
-
puts proportionally the average of N numbers of sampled data.
When a new input is sampled after another H seconds, the oldest
sample is deleted and a new average is calculated including the
latest sample, and a proportional output is generated.
H: Sampling cycle (0.1 to 100.0 seconds adjustable)
N: Number of samples to be calculated (1 to 8 adjustable)
■
DEAD TIME COMPUTING model xJFT2 (Group 01)
ITEM
MDFY.
DATA INPUT
DISPLAY
CONTENTS
23
P
FUNCTION TYPE
0
0: NO FILTER
Without the function
2
2:
DEAD TIME
With the dead time computing
24
25
26
P
P
P
0.1 – 100.0
1 – 8
0.0 – 100.0
H
N
T
XXX.X
X
XXX.X
Sampling cycle “H” (seconds)
“N” number of samples to be calculated
Time constant “T” (seconds)
[FUNCTION]
The xJFT2 does not respond to an input signal for a preset dead-
time duration. In addition, when a time constant T value is set, it
generates a first order lag output after the dead-time.
Xo (s) =
e
–Ls
Xi (s)
1 + Ts
Xi : Input
Xo :
Output
Ls :
Dead-time (H × N) s
H
:
Sampling cycle (0.1 to 100.0 seconds adjustable)
N
:
Number of samples to be calculated
(1 to 8 adjustable)
T
:
Time constant (0.0 to 100.0 seconds adjustable)
H
H
INPUT
t
OUTPUT
t
N numbers
N numbers
average
INPUT
• Step Input with Dead-Time
t
OUTPUT
t
0
0
H x N
INPUT
• Step Input with Dead-Time Plus Time Constant
t
OUTPUT
t
0
0
T
H x N
