M-system MD7FB User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8066-B Rev.1 P. 1 / 2
SAFE INSTALLATION MANUAL (CENELEC APPROVAL)
LIGHTNING SURGE PROTECTOR FOR
FOUNDATION Fieldbus (ultra-slim) MODEL MD7FB
BEFORE USE ....
■SAFETY PRECAUTIONS
This manual describes important points of caution for safe
use of this product in potentially explosive atmosphere.
Please read this manual carefully before installing and op-
erating the product.
■SPECIAL CONDITIONS FOR SAFE USE
Electrostatic charges on the enclosure shall be avoided.
■MODEL NUMBER IDENTIFICATION
Model No. MD7FB – 1 2 3
1) SHIELD TERMINAL (to earth)
FF : Floating
FG : Grounding
2) SAFETY APPROVAL
0 : None
2 : CENELEC intrinsically safe (ATEX)
3) OPTIONS
-X : Special specification
■MANUFACTURED DATE CODE IDENTIFICATION
The manufactured year and month can be identified by the
serial number described on the specification marking.
Serial No. Y M xxxxxx
YEAR
4:2014 A :2020 1 :2041
5:2015 B :2021 2 :2042
: : : : : :
9:2019 U :2040 9 :2049
MONTH
1991 - 2019 (year) 2020 - 2052 (year)
A:January M :January
B:February N :February
C:March P :March
: : : :
L:December Y :December
WARNING
Explosions could result in death or serious injury:
•Before you remove the unit or mount it, or before you con-
nect or disconnect the wiring, turn off the power supply
and the input signal for safety. Do not disconnect unless
the area is known to be non-explosive.
•Whenever you need to measure voltage across the termi-
nals or apply a simulated input signal to the terminals,
make sure that there is no danger of explosion in the at-
mosphere.
•Verify the certification of the product described on the
specification marking on the product.
•Verify that the operating atmosphere of the product is
consistent with the appropriate hazardous locations cer-
tifications.
•Verify that the environmental temperature is within the
temperature class required for the area.
Failure to follow these installation guidelines could result
in death or serious injury:
•Make sure only qualified personnel perform the instal-
lation.
SAFETY FEATURES & CAUTIONS
■INTRINSICALLY SAFE APPROVAL
•CENELEC / ATEX
EU-Type Examination Certificate: KEMA 08ATEX0166 X
0344 II 1G Ex ia IIC T4, T5
Zone 0
•Applicable Standards
EN 60079-0
EN 60079-11
•IS Data
LINEAR BARRIER FISCO SUPPLY
Ui 32V 17.5V
Ii any 400mA
Pi See below 5.4W
Ci 5 nF 5 nF
Li 0 µH 0 µH
Pi : For T4 and Ta = -25 to 40°C : 1.3W
For T4 and Ta = -25 to 60°C : 1.2W
For T4 and Ta = -25 to 80°C : 1.0W
For T5 and Ta = -25 to 40°C : 1.0W
•Install the product according to the installation diagram.
•Install the product according to local installation codes.
•DO NOT RUB the surface of the plastic enclosure with a
dry cloth. Electrostatic charge generated by the friction
may cause an explosion.
•Max. continuous operating voltage (Uc)
Line to line: ±32V
Line to earth: ±160V
Shield to earth: ±160V (MD7FB-FF)
Shortcircuited for the MD7FB-FG

MD7FB
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-8066-B Rev.1 P. 2 / 2
INSTALLATION DIAGRAM for CENELEC INTRINSICALLY SAFE MODEL
NOTES
1. The parameters of AA and IS apparatus protected by the MD7FB shall comply with
the following conditions.
Uo ≤Ui1, Ui2or Uiequipment, whichever is smallest.
Io ≤Ii1, Ii2or Iiequipment, whichever is smallest.
Po ≤Pi1, Pi2or Piequipment,whichever is smallest.
Co ≥Ci1+ Ci2+ Ciequipment + Cc
Lo ≥Li1+ Li2+ Liequipment + Lc
When multi-drop wiring is used, Ci2, Ciequipment, Li2 and Liequipment must be the total capacitance and
inductance of all the apparatus connected to the bus line.
2. Either one of the two MD7FB may be a different lightning surge protector certified by a notified body
under ATEX directive 2014/34/EU.
3. The associated apparatus and the IS apparatus must be certified by a notified body under ATEX
directive 2014/34/EU.
In case of isolated associated apparatus, the earth is not required.
4. When shield wiring is used, it must be connected to earth in the non-hazardous location.
5. Shield wiring method depends on the system requirement.
Maximum Input Power Pi
17.5 V
5.4 W
Maximum Input Inductance Li
Maximum Input Capacitance Ci
Maximum Input Current Ii
Maximum Input Voltage Ui
Electrical Data Linear Barrier FISCO Supply
any
5 nF
0 μH
32 V
400 mA
5 nF
0 μH
see right
Maximum Input Power Pi for Linear Barrier:
For T4 and Ta=-25 to 40°C: 1.3W
For T4 and Ta=-25 to 60°C: 1.2W
For T4 and Ta=-25 to 80°C: 1.0W
For T5 and Ta=-25 to 40°C: 1.0W
Non-Hazardous Location
Hazardous Location
Zone 0, 1 and 2
IS Apparatus *1,3
DIN rail
4
5
8
Ui2
Ii2
Pi2
Ci2
Li2
Cable Capacitance: Cc
Cable Inductance: Lc
*4
Uiequipment
Iiequipment
Piequipment
Ciequipment
Liequipment *5
+
-
+
-
Associated
Apparatus *1,3
Uo
Io
Po
Co
Lo
4
5
DIN rail
Ui1
Ii1
Pi1
Ci1
Li1
MD7FB
*5
1
2
7
+
3
-
SHLD
66
8
Bus Line
1
2
3
MD7FB *2
*2