IDEC EB3N User manual

Type EB3N Relay Barrier
Associated Apparatus providing Intrinsically safe outputs
for use in the following hazardous(classified) locations
ClassⅠ
ⅠⅠ
Ⅰ, Zone 0, [AExia]IIC
ClassⅠ
ⅠⅠ
Ⅰ,Ⅱ
ⅡⅡ
Ⅱ,Ⅲ
ⅢⅢ
Ⅲ, Div 1 GrpsA,B,C,D,E,F and G
When installing an IDEC Type EB3N Relay Barrier, make sure it conforms to the following rawings an escriptions
as well as all applicable requirements. ANSI/NFPA70.
･ This associate apparatus may also be connecte to simple apparatus as efine in Article 504.2 an
installe an temperature classifie in accor ance with Article 504.10(B) of the National Electrical Co e
(ANSI/NFPA 70), or other local co es, as applicable.
･ Capacitance an in uctance of the fiel wiring from the intrinsically safe equipment to the associate
apparatus shall be calculate an must be inclu e in the system calculations as shown in Note 2 of Table 2
below. Cable capacitance, Ccable, plus intrinsically safe equipment capacitance, Ci must be less than the
marke capacitance, Ca (or Co), shown on any associate apparatus use . The same applies for in uctance
(Lcable, Li an La or Lo, respectively). Where the cable capacitance an in uctance per foot are not known,
the following values shall be use : Ccable = 60 pF/ft., Lcable = 0.2 µH/ft.
･ Associate apparatus must be installe in an enclosure suitable for the application in accor ance with the
National Electrical Co e (ANSI/NFPA 70) for installation in the Unite States, the Cana ian Electrical
Co e for installations in Cana a, or other local co es, as applicable.
･ Where multiple circuits exten from the same piece of associate apparatus, they must be installe in
separate cables or in one cable having suitable insulation. Refer to Article 504.30(B) of the National
Electrical Co e (ANSI/NFPA 70) an Instrument Society of America Recommen e Practice ISA RP12.6 for
installing intrinsically safe equipment.
･ Intrinsically safe circuits must be wire an separate in accor ance with Article 504.20 of the National
Electrical Co e (ANSI/NFPA 70) or other local co es, as applicable.
･ This associate apparatus has not been evaluate for use in combination with another associate
apparatus.
･ Control equipment must not use or generate more than 120 V rms or c with respect to earth.
･ For installations in which both the Ci an Li of the intrinsically safe apparatus excee s 1% of the Co an Lo
parameters of the associate apparatus (exclu ing the cable), then 50% of Co an Lo parameters are
applicable an shall not be excee e .
･
･･
･Servicing – Replacement and Repairs :
: :
: Inspection an replacement of the Relay Barriers shall not be ma e until
power is isconnecte an shall not be connecte again until all replacement Relay Barriers are properly re-assemble .
All electrical components, inclu ing the interconnecting wiring, shall be kept in safe con ition. Defective Relay Barriers
shoul be returne to the factory for repair.
WARNING : Substitution of components or unauthorize repair may impair intrinsic safety of apparatus.
AVERTISSEMENT : La substitution e composants peut compromettre la sécurité intrinsèque e l’appareil.
･
･･
･Mounting : All bolts, nuts, screws, an other means of fastening, inclu ing the unuse wiring screws, shall be
fastene in place, properly tightene an secure . Mount the Relay Barrier on a 35mm track or irectly mount on a
panel surface using screws.
･
･･
･Certified Relay Barrier : Type EB3N-abc “EB3N”= Series type
a = Safety circuit A2 : for auto start, 2 I/O M2 : for manual start, 2 I/O
b = Auxiliary circuit N : wit out auxiliary circuit, R5 :, relay output, 5 I/O
c = Power supply D : 24V DC
･
･･
･Table 1:Operations
IDEC CORPORATION
6-64, Nis i-Miya ara, 2-C ome, Yodogawa-Ku,
Osaka 532-0004, Japan www.idec.com
I
nstallation Manual
Terminals Ratings
Power Supply Input: + , - 24V DC (-15%,+10%) Class 2
Input: 11-12, 21-22 12V DC, 10 mA (source)
Safe Circuit Output
13-14, 23-24 2NO: DC-13 24V, 1A(Ind.)
30V DC, 1A(Res.)
Input: P-N 12V DC, 10mA (source)
Auxiliary Circuit
Output A-C 5NO/common: 24V DC, 3A(Res.)
Reset Circuit Input: Y1-Y2 24V DC, 5 mA
Draw. No. B
-
1156
-
4
Rev. B, Oct. 15, 2014

･
･･
･Table2:Rating and arameters of I.S.
Ta= 40°C, Um= 125V Uo=13.2V
I.S rating of each terminal as follows.
I.S. Terminal No.
11-12 and 21-22
11-12
21-22
(P1～P5)-N
Uo(Vt) 13.2V 13.2V
Io(It) 28.4mA 14.2mA
Po 93.8mW 46.9mA
･
･･
･Typical Installation: Install the Relay Barrier must be accor ing to the following Ratings an Parameters of I.S. an
escriptions.
To avoi electrical shock, install the Relay Barrier in a tool-accessible enclosure.
Layout an wiring must be one to prevent the in uctive or capacitive in uction to the intrinsically safe circuit.
For example, separate intrinsically safe circuits from non-intrinsically safe circuits, by a minimum space of 50mm or
using a full height metal separator. If color-co ing is require use for the intrinsic safe components an terminals, use
only cables an terminals with light blue markings.
Common wiring : To set up common wiring, connect two “ N “ terminals between a jacent the Relay Barrier in parallel.
･
･･
･Connections: Connect the wires to the Relay Barriers accor ing to the following formula:
Also, refer to Table.3
Table 3
Connection
Number
Type No. Unit Number Available Maximum
Safe Circuit Channel
Available AUX
Circuit Channel
Total Io [mA]
1 1 2 0 56.8
2 2 4 0 113.6
3 3 6 0 170.4
4
EB3N-□2□D
4 8 0 227.2
5 1 2 5 127.8
6 2 4 8 227.2
＊ 3 6 4 227.2
＊
EB3N-□2□5□D
4 8 0 227.2
EB3N-□2□D 1
7 EB3N-□2□5□D 1 4 5 184.6
EB3N-□2□D 2
8 EB3N-□2□5□D 1 6 4 227.2
EB3N-□2□D 3
＊ EB3N-□2□5□D 1 8 0 227.2
EB3N-□2□D 1
＊
EB3N-□2□5□D 2 6 4 227.2
EB3N-□2□D 1
＊ EB3N-□2□5□D 3 8 0 227.2
＊: since these are inclu e in the other connection number circuit, actual wiring oes not nee .
Io(mA)
14.2 28.4 42.6 56.8 71.0 85.2 99.4 113.6 127.8 142.0 156.2 170.4 184.6 198.8 213.0 227.2
Po(mW)
46.9 93.8 140.6 187.5 234.3 281.2 328.1 375.9 421.8 468.7 515.5 562.4 609.2 656.1 702.9 750
Combined
Lo(mH)
Note 2 T e intrinsic safe apparatus
and wirings s all be accordance to
0.67 0.65 0.63 0.61 0.59 0.57 0.55 0.53 0.51 0.49 0.47 0.44 0.42 0.39 - - 1.0 following formulas; for examples,
0.79 0.77 0.76 0.75 0.73 0.72 0.70 0.69 0.67 0.66 0.64 0.62 0.61 0.59 0.57 0.55
0.5 Ui > Uo
0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.93 0.92 0.91 0.90 0.88 0.87 0.86 0.85 0.84
0.2 Ii > Io
Co(uF)
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.94
0.
94
0.94
0.94
0.94
0.94
0.1 Pi > Po
Ci+Cc < Co
Li+Lc < Lo
Note 1
A
dded to above table, t e next values combined Lo and Co are allowable
;
Io(mA)
14.2 28.4 227.2
Lo(mH)
175* 87.5 30.0 2.5 0.55 0.25 43.5* 21.5 20.0 3.5 0.43 0.25 0.68* 0.34 0.68 0.6 0.22 0.13
Co(nF) 900* 450 330 540 770 900 900* 450 300 480 800 900 900* 450 450 490 800 900
*:T erefore, only in combination wit a cable t is values are allowable at Li<1%Lo and Ci<1%Co of t e intrinsic safe apparatus
apparatus.
Intrinsically Safe Circuit
28.4mA × Chanel
（Max.8ch） ＋
Intrinsically AUX Circuit
14.2mA × Chanel ≦ 227.2mA

Note. The current for intrinsically safe circuit per channel is 28.4mA. The Lo an Co values given are the
sums of the values that may be connecte to each in ivi ual channel.
[No.1 Type EB3N-□2□D ] [No.2 Type EB3N-□2□D ]
[No.3 Type EB3N-□2□D ]
[No.4 Type EB3N-□2□D]
[No.5 Type EB3N-□2□5□D]
Uo =13.2V
Io =56.8mA
Po=187.5mW
Lo,Co:Refer to Table2
N1 an N2 terminals
are no-connection.
Haz LocationSafe Location
(classified)
(Non classified)
Uo =13.2V
Io =113.6mA
Po=375.9mW
Lo,Co:Refer to Table2
Uo =13.2V
Io =170.4mA
Po=562.4mW
Lo,Co:Refer to Table2
11 12 N1 21 22 N2
+ - Y1 Y2 13 14 23 24
EB3N-□2□Ｄ
Power supply and General circuit
Instrically Safe Circuit
Instrically Safe Apparatus
11 12 N1 21 22 N2
+ - Y1 Y2 13 14 23 24
EB3N-□2□Ｄ
Instrically Safe Circuit
11 12 N1 21 22 N2
+ - Y1 Y2 13 14 23 24
EB3N-□2□Ｄ
Instrically Safe Circuit
11 12 N1 21 22 N2
+ - Y1 Y2 13 14 23 24
EB3N-□2□Ｄ
Instrically Safe Circuit
Uo =13.2V
Io =227.2mA
Po=750mW
Lo,Co:Refer to Table2
Uo =13.2V
Io =127.8mA
Po=421.8mW
Lo,Co:Refer to Table2
N1 an N2 terminals
are no-connection.

[No.6 Type EB3N-□2□5□D ]
[No.7 Type EB3N-□2□D + EB3N-□2□5□D ]
[No.8 Type EB3N-□2□D + EB3N-□2□5□D ]
Haz LocationSafe Location
(classified)
(Non classified)
Haz LocationSafe Location
(classified)
(Non classified)
Haz LocationSafe Location
(classified)
(Non classified)
Uo =13.2V
Io =227.2mA
Po=750mW
Lo,Co:Refer to Table2
Uo =13.2V
Io =184.6mA
Po=609.2mW
Lo,Co:Refer to Table2
Uo =13.2V
Io =227.2mA
Po=750mW
Lo,Co:Refer to Table2