MODEL: JFT Plug-in Signal Conditioners M-UNIT FILTER/LAG TRANSMITTER

MODEL: JFT Plug-in Signal Conditioners M-UNIT FILTER/LAG TRANSMITTER
MODEL: JFT
Plug-in Signal Conditioners M-UNIT
FILTER/LAG TRANSMITTER
(field-programmable)
Functions & Features
• Providing various filter functions which eliminate
unnecessary elements in the input signals
• Microprocessor based
• On-site calibration via hand-held programmer PU-2x
• Field-programmable input range
• Isolation up to 2000 V AC
• High-density mounting
Typical Applications
• Level control; eliminating drifts in the input signal caused
by pumps
50
(1.97)
80
(3.15)
127
(5)
mm (inch)
MODEL: JFT[1]–[2][3]–[4]
•Code number: JFT[1]-[2][3]-[4]
Specify a code from below for each [1] through [4].
(e.g. JFT1-6A-B)
•Use Ordering Information Sheet (No. ESU-1679) to specify
parameters.
•Parameters (See "Functions" section.)
•Special input and output ranges (For codes U1,U2, U3, Z &
0)
1: Moving average output
2: Dead-time computing
3: Delay buffer
4: Lead-time computing
5: Ramp buffer
6: Mean average output
[2] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
http://www.m-system.co.jp/
[3] OUTPUT
Current
A: 4 – 20 mA DC (Load resistance 750 Ω max.)
B: 2 – 10 mA DC (Load resistance 1500 Ω max.)
C: 1 – 5 mA DC (Load resistance 3000 Ω max.)
D: 0 – 20 mA DC (Load resistance 750 Ω max.)
E: 0 – 16 mA DC (Load resistance 900 Ω max.)
F: 0 – 10 mA DC (Load resistance 1500 Ω max.)
G: 0 – 1 mA DC (Load resistance 15 kΩ max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
[4] POWER INPUT
ORDERING INFORMATION
[1] FUNCTION
H: 10 – 50 mA DC (Input resistance 100 Ω)
Voltage
6: 1 – 5 V DC (Input resistance 1 MΩ min.)
U1: Range ±100 mV; minimum span 3 mV
U2: Range ±1000 mV; minimum span 30 mV
U3: Range ±10 V; minimum span 0.3 V
AC Power
B: 100 V AC
C: 110 V AC
D: 115 V AC
F: 120 V AC
G: 200 V AC
H: 220 V AC
J: 240 V AC
DC Power
S: 12 V DC
R: 24 V DC
V: 48 V DC
RELATED PRODUCTS
• JX configurator connection kit (model: JXCON)
• Programming Unit (model: PU-2x)
GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M3.5 screw terminals
Housing material: Flame-resistant resin (black)
JFT SPECIFICATIONS
ES-1679 Rev.6 Page 1/5
MODEL: JFT
Isolation: Input to output to power
Overrange output: Approx. -10 to +120 % at 1 – 5 V
Zero adjustment: -5 to +5 % (front)
Span adjustment: 95 to 105 % (front)
Adjustments: Programming Unit (model: PU-2x); function
and parameters, input range,
zero and span, etc. (Input range can be changed with Codes
U1, U2 or U3 and limited within ranges of each code type.)
setting
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute (input to output
to power to ground)
INPUT SPECIFICATIONS
• DC Current:
Shunt resistor attached to the input terminals (0.5 W)
•DC Voltage: -10 – +10 V DC
Minimum span: 3 mV
Offset: Max. 3 times span
Input resistance (Input Range: Input Resistance)
U1: ±100 mV: 20 kΩ min.
U2: ±1000 mV: 20 kΩ min.
U3: ±10 V: 1 MΩ min.
Default setting (table below) will be used if not otherwise
specified.
U1: 0 – 100 mV DC
U2: 0 – 1 V DC
U3: 0 – 10 V DC
OUTPUT SPECIFICATIONS
• DC Current: 0 – 20 mA DC
Minimum span: 1 mA
Offset: Max. 1.5 times span
Load resistance: Output drive 15 V max.
• DC Voltage: -10 – +20 V DC
Span: Min. 5 mV, max. 20 V
Offset: Max. 1.5 times span
Load resistance: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Power input
•AC: Operational voltage range: rating ±10 %,
50/60 ±2 Hz, approx. 3 VA
•DC: Operational voltage range: rating ±10 %,
ripple 10 %p-p max., approx. 2 W (90 mA at 24 V)
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Weight: 350 g (0.77 lbs)
PERFORMANCE in percentage of span
Accuracy: ±0.1 %
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Response time: ≤ 0.5 sec. (0 – 90 %) without any function
http://www.m-system.co.jp/
JFT SPECIFICATIONS
ES-1679 Rev.6 Page 2/5
MODEL: JFT
DIMENSIONS unit: mm (inch)
CLAMP
(top & bottom)
20
(.79)
7.8 (.31)
5
4
3
7
8
1
2
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
8–M3.5
SCREW
50 (1.97)
6
80 (3.15)
80 (3.15)
35.4 (1.39)
DIN RAIL
35mm wide
107 (4.21)
40 (1.57)
127 (5)
[3.3 (.13)]
50 (1.97)
• When mounting, no extra space is needed between units.
TERMINAL ASSIGNMENTS unit: mm (inch)
6
5
4
3
7
8
1
2
12 (.47)
INPUT RESISTOR
(model: REM)
Input shunt resistor attached
for current input.
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM
Isolation
+
INPUT
R
–
*
3
Low Drift
Amplifier
Digital
Computation
Z
S
Output
Driver
1 +
OUTPUT
4
2 –
5
7 U(+)
6
8 V(–)
POWER
PU-2❑
MODULAR JACK
SERIAL TRANSMISSION LINE
Base Socket
*Input shunt resistor attached for current input.
http://www.m-system.co.jp/
JFT SPECIFICATIONS
ES-1679 Rev.6 Page 3/5
MODEL: JFT
FUNCTIONS
■ MOVING AVERAGE OUTPUT (model: JFT1)
The JFT1 samples input signals every H seconds and
outputs proportionally to an average of N numbers of
sampled data. When a new input is sampled after
another H seconds, it gives up the oldest sample and
calculates a new average including the latest sample
and outputs proportionally.
INPUT
t
H
H
N numbers
N numbers
H : sampling cycle
(0.1 to 100.0 seconds adjustable)
N : number of samples to be calculated
(1 to 8 adjustable)
average
OUTPUT
t
•Step Input with Dead-Time
■ DEAD-TIME COMPUTING (model: JFT2)
The JFT2 does not respond to an input signal for a
preset dead-time duration. In addition, with adjusting
a time constant T, it generates a first order lag output
after the dead-time.
X0 (s) =
e –Ls
1+Ts
X1 (s) + H X N (s)
X0 : output
X1 : input
Dead Time = H X N (s) (H ≤ T)
H : sampling cycle
(0.1 to 100.0 seconds adjustable)
N : numbers of samples to be calculated
(1 to 8 adjustable)
T : time constant
(0 to 100.0 seconds adjustable)
INPUT
0
t
OUTPUT
0
t
HxN
•Step Input with Dead-Time Plus Time Constant
INPUT
0
t
OUTPUT
0
HxN
■ DELAY BUFFER (model: JFT3)
The JFT3 generates a first order lag output.
X0 (s) =
1
1+Ts
T
t
•Step Input with Time Constant
INPUT
X1 (s)
X0 : output
X1 : input
T : time constant
(0 to 100.0 second adjustable)
0
t
OUTPUT
0
T
http://www.m-system.co.jp/
JFT SPECIFICATIONS
t
ES-1679 Rev.6 Page 4/5
MODEL: JFT
■ LEAD-TIME COMPUTING (model: JFT4)
•Step Input with Time Constant (Lead)
The JFT4 operates a lead-time equation.
INPUT
X0 (s) = (1 + T s) X1 (s)
0
X0 : output
X1 : input
T : lead-time constant
(0 to 100.0 seconds adjustable)
t
OUTPUT
0
t
T
•Step Input with Rate-of-Change Limit
■ RAMP BUFFER (model: JFT5)
The JFT5 output does not change faster than a preset
maximum rate, positive CP and negative CN, no matter how fast its input changes.
INPUT
0
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)
t
OUTPUT
0
CN
CP
t
•Example (N=5, U-1, L=1)
■ MEAN AVERAGE OUTPUT (model: JFT6)
The JFT6 samples input signals every H seconds and,
excluding U numbers of largest samples and L numbers of smallest samples, outputs proportionally to an
average of the rest [N – (U + L)] of sampled data. When
the number of samples to be calculated equals 0 or less,
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)
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)
t
OUT 1
OUT 2
Specifications are subject to change without notice.
http://www.m-system.co.jp/
JFT SPECIFICATIONS
ES-1679 Rev.6 Page 5/5
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