27
PU-2A USERS
MANUAL EM-9255-C Rev.14
■
DELAY BUFFER model xJFT3 (Group 01)
ITEM
MDFY.
DATA INPUT
DISPLAY
CONTENTS
23
P
FUNCTION TYPE
0
0: NO FILTER
Without the function
3
3: LAG MODULE
With the delay buffer
26
P
0.0 – 100.0
T XXX.X
Time constant “T” (seconds)
[FUNCTION]
The xJFT3 generates a first order lag output.
Xo (s) =
1
Xi (s)
1 + Ts
Xi : Input
Xo :
Output
T
:
Time constant (0.0 to 100.0 seconds adjustable)
■
LEAD TIME COMPUTING model xJFT4 (Group 01)
ITEM
MDFY.
DATA INPUT
DISPLAY
CONTENTS
23
P
FUNCTION TYPE
0
0: NO FILTER
Without the function
4
4: LEAD MODULE
With the lead time computing
26
P
0.0 – 100.0
T XXX.X
Time constant “T” (seconds)
[FUNCTION]
The xJFT4 operates a lead-time equation.
Xo (s) = (1 + Ts) Xi (s)
Xi : Input
Xo :
Output
Ls :
Lead-time constant (0.0 to 100.0 seconds adjustable)
■
RAMP BUFFER model xJFT5 (Group 01)
ITEM
MDFY.
DATA INPUT
DISPLAY
CONTENTS
23
P
FUNCTION TYPE
0
0: NO FILTER
Without the function
5
5: RAMP BUFFER
With the ramp buffer
27
28
P
P
0.00 – 200.00
0.00 – 200.00
CP
CN
XXX.XX
XXX.XX
Maximum rate of positive output change (%/s)
Maximum rate of negative output change (%/s)
[FUNCTION]
The xJFT5 output does not change faster than the preset maximum
rate, positive CP and negative CN, no matter how fast its input
changes.
CP
: Maximum rate of positive output change
(0.00 to 200.00%/second adjustable)
CN
: Maximum rate of negative output change
(0.00 to 200.00%/second adjustable)
INPUT
• Step Input with Time Constant
t
OUTPUT
t
0
0
T
INPUT
• Step Input with Time Constant (Lead)
t
OUTPUT
t
0
0
T
INPUT
• Step Input with Rate-of-Change Limit
t
OUTPUT
t
0
0
CP
CN
