electropneumaticen40
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QJ1102.M-E
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Wall mounting
Floor mounting
Within ±15°
Tilt
Horizontal mounting Vibration
Electro-pneumatic convert
Mist separator(filtration: 0.2μm)
Reducing valve with filter
(filtration: 5 to 40μm)
Booster r
SUP
Span adjustment
To moving coil
Zero-a
3. Installation and Wiring
2. OverviewThe Electro-pneumatic Converter EN40 converts current input
signals into pneumatic signals. It is designed to provide high
accuracy, output pressure and excellent response.
4. Adjustment
Take neceso that taccidental
Danger of Perform mline and thsupply and
Warning
Warning
Warning
Warning
Danger of electric shock!Perform maintenance and inspection only when theline and the units are stopped (both the main power supply and the amplifier are OFF).
Figure 3.1
3.1 Precautions on installation
[1] The EN40 can be mounted on a wall, floor, or manifold.
[2] Install the EN40 at a place free of vibration.
[3] Install the EN40 vertically.
[4] Refer to Figure 10.1 External dimensions for mounting the
EN40 on a manifold.
3.2 Pneumatic piping
[1] Be sure to use a filter and mist separator to prevent dust, water
and oil because the EN40 Electro-pneumatic Converter is
equipped with a precision pneumatic circuit.
[2] Refer to Figures 3.2 and 3.3 for the system configuration inapplications where an oiler is needed to the operational
controlling element or not.
[3] The standard specifications of the air pipes are as follows:
Supply pipe (IN) : More than 4mm in inner diameter
Output pipe (OUT) : Less thanφ6 x φ4 x 10 m
3.3 Electrical wiring
Open the cover and remove
plate. Connect the cables fro
input signals to the positive (+
Wear appropriate working clothes for safety.
Take necessary safety measures before startingwork so that the line and the units will not moveaccidentally while you are working.
(b) When an oiler (lubricator) is ne
ININ
I N
IN
I N
× ×
O U T
IN
BK RDSPA
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Model Range of zero adjustment (kpa)
EN40-1A-V ±40
EN40-1B-V +80
EN40-2B-V −50
EN40-5B-V +80
EN40-1D ±8
EN40-6C-V ±40
Model Standard supply pressure (kpa)
EN40-1A-V 500
EN40 1B V
SPAN
AmplifierElectro-pneumaticconverter EN40
Ammeter
Mist separetor(filtration: 0.2μm)
Manual drain unitDust is removed by filter.
Note
It is difficult to adjust the span if a constant-voltage output amplifier is used. Be sure to
use a constant-current output amplifier. As shown in Figure 4.3, the indicated value of
the ammeter does not change even when making span adjustment.
7. Malfunctions a
・In most cases, the malfunction
orifice clogged with dust or impu
Take necso that accident
Danger oPerform line and supply an
Warning
Warning
6. Maintenance
・There are virtually no problems
source as instructed at chapter 3.
and the mist separator.
Nireco's standard air cleaner (UC
Take necso that accident
Danger oPerform line and supply a
Warning
Warning
Figure 4.2
Figure 4.3
4.3 Range of zero adjustment
The zero adjustment is made in the following rang.
4.4 Variation in supply pressure
The supply pressure is adjusted as shown in the table below. If
another supply pressure is used, the zero point changes slightly (thespan does not change).
Therefore make zero adjustment again according to section 4.1.
4.2 Span adjustment (SPAN)
Open the cover and make span adjustment using a small keystone-
tipped screwdriver.
Turning clockwise increases pressure. Make span adjustment twice
or three times on the full-scale because the zero point changes
when the span is adjusted.
7.1 How to check iclogged
If output is not provided sm
+
-
A +
-
Impedance450 Ω
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MODEL
Input current mA DC
Output pressure† kpa
Supply pressure kpa
Air consumption N /min
Max. flow rate N /min
Hysteresis kpa
EN40-1A-V
4∼20
0∼400
500
9*
1000
5 (1.25%)
EN40-1B-V
4∼20
0∼600
700
12*
1400
7 (1.2%)
EN40-2B-V
10∼50
0∼600
700
12*
1400
7 (1.2%)
EN40-5B-V
0∼16
0∼600
700
12*
1400
7 (1.2%)
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7 6
1 2
4 8 9 6
4 8 9 6 1 1 6
1 3 0
3 0 4 4
8 4 8 2
1 9 2
1 2 1 2
3 3 . 5
6 7
1 1 8
1 2 8
3 . 2
6 0
3 . 2
6 2
1 1 0
2 8
1 8 0 m m m i n .
T o r e m o v e c o v e r
C a b l e c o n d u i t c o n n . G 1 / 2
M o u n t i n g
h o l e 2 - φ 6 . 5
Z e r o a d j .
O
U T R c 1 / 4
O U T
I N
I N
R c 1 / 4
R c 1 / 4
P r e s s u r e
g a u g e
c o n n .
( O u t p u t p r e s s u r e )
E N 4 0
E
N 4 0
4 - φ 5 . 5
M o u n t i n g h o l e s
M o u n t i n g n a i l
( A t t a c h e
d )
O U
T
B l i n d p l u g
( A t t a c h e d )
* I N B l i n d p l u g
( A t t a c h e
d )
F a c i n g f i n i s h
3 . 2 S o r l e s s
I N
O - r i n g g r o o v e
2 - φ 1 2
× 1 . 4 d e p t h
O - r i n g J I S B 2 4 0 1 - 1 A P 1 0 A
( A t t a c h e d )
+ 0 . 0 5
- 0
+ 0 . 0 5
O U T
A
B
C
D
> 4 0 s h o u l d b e k e p t w h e n
i n s t a l l i n g t w o o r m o r e c o n
v e r t e r s
A
B
C
D
N o t e ) *
W h e n i n s t a l l i n g
o n a m a n i f o l d
W h e n i n s t a l l i n g o n
t h e f l o o r , u s e t h e p l u g s t o c l o s e
a n d
a n d u s e
a n d
a s t h e c o n n e c t i o n h o l e s .
W h e n i n s t a l l i n g o n a f l o o r o r m a n i f o l d
1 0 . E x t e r n a l
D i m e n s i o n s
F i g u r e 1 0 . 1 E x t e r n
a l d i m e n s i o n s
M o d e l
D w g . N o .
E N 4 0 - 1 A - V -
M D 0 4 2 5 . 0 - E A
E N 4 0 - 6 C - V -
M D 0 4 2 5 . 0 - E A
E N 4 0 - 1 B - V -
M D 0 4 2 6 . 0 - E A
E N 4 0 - 5 B - V -
M D 0 4 2 6 . 0 - E A
E N 4 0 - 2 B - V -
M D 0 4 2 7 . 0 - E A
E N 4 0 - 1 D -
M W 2 0 6 0 . 1 - E A