FFI SYSTEM
OPTICAL-PNEUMATIC POSITIONER
DATA SHEET
ZLF
This instrument converts the optical signal from a master station or the like into a pneumatic signal (0.2 to 1.0
kgf/cm 2, etc.) in order to drive a diaphragm type control
valve. The operating position of the valve is fed back via
link to this positioner to enable accurate positioning.
A built-in microcomputer provides intelligent digital processing of signals with a high precision, and the use of a piezoelectric element flapper makes for a low power consumption.
This articles are φ6mm optical fiber cable connection type.
SPECIFICATIONS
Functional specifications
Input signal:
FFI system optical digital signal
Operating air pressure, supply air pressure:
Operating air pressure
Supply air pressure
19.6 to 98.1kPa {0.2 to 1.0kgf/cm2}
39.2 to 196.1kPa {0.2 to 2.0kgf/cm2)
3 to 15psi
3 to 27psi
6 to 30psi
140kPa {1.43kgf/cm2}
240kPa {2.45kgf/cm2}
20± 1psi
32± 1psi
Power supply:
Self-diagnosis:
35± 1psi
Built-in lithium battery (single battery lasts
about 2 years)
Diagnosis results can be displayed on optional indicator unit and also transmitted
to master station.
Contents
HHC, MS (*1) Indication
Battery voltage
Output failure (*2)
Battery voltage drop
Notes: *( 1) HHC: hand-held communicator,
MS: master station
( 2) When output overflows, or offset is
large
Operation at emergency:
Output operation is settable by remote
means (HHC, MS) in an emergency
(when input fails) (available on request).
• Holding of output value just before failure
• Scale-out of set value below 0%
• Scale-out of set value above 100%
Explosionproofing:
JIS i3nG5, unnecessary for safety-barrier
Ambient temperature:
–20 to +60 °C (–10 to +60 °C for indicator unit)
Storage temperature:
–30 to +70°C
Ambient humidity:
0 to 95%RH
Transmission:
Half-duplex bidirectional optical transmission system using single optical fiber cable
Transmission distance; 1.2km max.
(not affected by noise, surge or the like)
Applicable valve: Diaphragm control valve with top diameter of φ240 or more; stroke 10 to 90mm
(feedback lever rotating angle 10 to 30 °)
Performance specifications
Accuracy rating: ± 1.0% of full scale (output ripple approx.
± 0.2%)
Response speed: Approx. 4 seconds (for 90% response)
(with control valve having top diameter
φ240 and lift of 16mm)
Input/output characteristic:
Linear
Reference air consumption:
12Nr/min (at supply air pressure of
140kPa {1.43kgf/cm2}
20Nr/min (at supply air pressure of
240kPa {2.45kgf/cm2}
Maximum air supply/discharge flow rate:
60Nr/min (at supply air pressure of
140kPa {1.43kgf/cm2}
80Nr/min (at supply air pressure of
240kPa {2.45kgf/cm2}
EDS9-50b
Date
Jul. 31, 1994
ZLF
Structure, materials
Optional specifications
Enclosure structure:
JIS C0920, splash-proof (equivalent to IEC
IP54)
Finish:
Epoxy/polyurethane double coating, silver
(casing cover ..... blue)
Outer dimensions (H x W x D):
257 x 165 x 220mm
Mass {weight}
Approx. 5kg
Mounting method:
On control valve yoke section
Three sizes, small, medium and large,
or links and clamps are available for
mounting on valve stem.
Optical cable and connection method:
Fuji's designated optical cable (to be purchased separately). Connection is made
by optical connector.
Air piping connection:
Rc 1/4 (PT1/4); 1/4–18NPT available on
request
Indicator unit:
Indicating section; 4 digit LCD (–10 to
+60°C)
Setting section; 4 pushbutton switches
Output pressure gauge:
JIS Class 3: 0 to 2 or 0 to 3kgf/cm 2 scale
(depends on output range)
Two built-in lithium batteries:
Changed over by internal selector switch
(standard specification allows accommodating two batteries)
Acid/alkali-proof treatment:
304 stainless steel for bolts and washers
SYSTEM CONFIGURATION DIAGRAM
Pneumatic type controlled device
O/P
positioner
Optical star coupler
FXQ
SUP
8 lines
Master station
CODE SYMBOLS
1 2 3 4 5 6 7 8
Z L F
9 10 11 12 13
Description
1 Operating air
pressure
19.6 to 98.1kPa
{0.2 to 1.0kgf/cm2}
39.2 to 196.1kPa
{0.4 to 2.0kgf/cm2}
3 to 15psi
6 to 30psi
3 to 27psi
98.1 to 19.6kPa
{1.0 to 0.2kgf/cm2}
196.1 to 39.2kPa
{2.0 to 0.4kgf/cm2}
15 to 3psi
30 to 6psi
27 to 3psi
1
2
3
4
5
6
7
8
9
A
Supply air
pressure
140kPa
{1.43kgf/cm2}
240kPa
{2.45kgf/cm2}
20psi
35psi
32psi
140kPa
{1.43kgf/cm2}
240kPa
{2.45kgf/cm2}
20psi
35psi
32psi
Operation
Normal
operation(*1)
Reverse
operation(*1)
Piping connection
Rc 1/4 (PT1/4)
1/4–18NPT
A
B
6 optical cable protection adapter
B
C
Note: for 9mm connector: non-standard item, on request
Indicator unit
pressure gauge
A
B
C
D
Explosionproofing specification
General use (non-explosionproof)
Intrinsically safe explosionproofing JIS i3nG5
0
1
Operation at emergency
Holding of output value just before failure
Scale-out of set value below 0%
Scale-out of set value above 100%
A
B
C
Treatment
For general use
Acid/alkali-proof treatment
Y
B
No. of built-in lithium batteries
One
Two
1
2
A
B
C
D
E
F
G
H
Link mechanism
Valve operation
None
With small link mechanism
Normal
With medium link mechanism
operation(*2)
With large link mechanism
None
Reverse
With small link mechanism
operation(*2)
With medium link mechanism
With large link mechanism
Notes: *(1) Positioner operation
• Normal operation: operating air pressure increases with increase of
setting single
• Reverse operation: operating air pressure decreases with increase of
setting single
*(2) Valve operation
• Normal operation: valve stem lowers with increase of operating air
pressure
• Reverse operation: valve stem rises with increase of operating air
pressure
ZLF
OUTLINE DIAGRAMS
(Unit:mm)
Indicator unit (option)
218
2-ø11 mounting holes
115
57
206
4.5
SUP.
76
1 0˚
t o 3 0˚
18
ø122
88
12
46
OUT.
Air piping connection
188
M42 thread 1 depth 4.8
Output pressure gauge (option)
13
Positioner with adapter (option)
for optical cable protection
Link mechanism ( B, C, D, F, G, H )
90
66
56
22
L2
121
L1
76
19
Valve stem
L2
B,F
35
30
C,G
50
55
D,H 112
55
5
6.2
Adapter 1/2-14NPT
(option)
L1
16
136
13
SCOPE OF DELIVERY
Positioner and mounting bracket
RELATED DEVICES
•
•
•
•
Optical star coupler (Data sheet No. EDS8-48)
HHC (Data sheet No. EDS 8–44)
Master station (Data sheet No. EDS 11–86)
Optical connector, Cable
ORDERING INFORMATION
1. Product name
2. Type
3. Other necessary items
Caution on Safety
*Before using this product, be sure to read its instruction manual in advance.
Head Office
6-17, Sanbancho, Chiyoda-ku, Tokyo 102-0075, Japan
http://www.fesys.co.jp/eng
Sales Div.
International Sales Dept.
No.1, Fuji-machi, Hino-city, Tokyo, 191-8502 Japan
Phone: 81-42-585-6201, 6202 Fax: 81-42-585-6187
http: //www.fic-net.jp/eng
Information in this catalog is subject to change without notice.
Printed in Japan