IDEC EB3N Manuel utilisateur

Ensures machine safety in an explosive atmosphere

EB3N Safety Relay Barrier

Explosion

Protection

Safety

Machine

Safety

First ever in the world! Safety relay barrier rated by Japan TIIS ([Exia] II C) and

Machine Safety Standard ISO 13849-1 (PLe, Cat 4)

In an explosive atmosphere, safety input devices can

be connected to the EB3N to build a safety system.

Explosion

Protection Safety

Machine

Safety

EB3N Safety Relay Barrier Yes Yes

Conventional Contact

Signal Transducer Yes —

EB3N ensures explosion protection safety and machine safety

Safety Input Device EB3N Safety Relay Barrier Safety Control Device Safety Standards

Explosion Protection Safety Yes Yes — Yes

Machine Safety Yes Yes Yes Yes

Conventional system does not ensure machine safety

Safety Input Device Contact Signal Transducer (EB3C) Safety Control Device Safety Standards

Explosion Protection Safety Yes Yes — Yes

Machine Safety Yes — Yes —

Combining a conventional contact signal transducer with safety input devices, such as emergency stop switches or interlock

switches, and safety control devices such as safety relay modules, safety controllers, or safety PLCs will also meet explosion

protection safety, but does not meet machine safety.

Hazardous Area

Emergency stop switch,

Interlock switch

Non-hazardous Area

EB3N

Safety relay module,

Safety controller

Motor,

etc.

Safety contactor

Intrinsically Safe Explosion-proof

Interlock Switch

Emergency Stop Switch

Hazardous Area

Emergency stop switch,

Interlock switch

Non-hazardous Area

Contact signal

transducer

Safety relay module,

Safety controller Safety contactor

EB3C relay barrier

Motor,

etc.

By combining the EB3N safety relay barrier with safety input devices, such as emergency stop switches or interlock switches,

and contactors compliant with safety standards, explosion protection safety and machine safety can be achieved. In addition,

safety control devices, such as safety relay modules or safety controllers, can also be combined to build a safety system.

(10/02/05)

EB3N Safety Relay Barrier

Ensures explosion protection safety and machine safety in an•

explosive atmosphere.

Machine safety system can be built in compliance with•

ISO13849-1 Category 4, Performance level e.

Safety input devices applicable in any explosive gas and hazard-•

ous areas are available.

Available with auxiliary inputs (5 points) used to monitor the oper-•

ating status of safety input devices.

A wide variety of Japan TIIS-rated emergency stop switches and•

interlock switches are available.

Global usage•

Explosion protection: Japan (TIIS), USA (FM pending), Europe

(ATEX pending), China (CQST pending)

Machine safety: TÜV Rheinland

No grounding required•

Build a safety system in an explosive atomosphre

General Specifications

Rated Power Voltage 24V DC

Power Voltage Range 20.4 to 26.4V DC

Operating Temperature –20 to +60°C (no freezing)

Operating Humidity 45 to 85% RH

(no condensation)

Power

Consumption

Without auxiliary output 5.5W maximum

With auxiliary output 7.0W maximum

Safety

Output

Contacts 13-14, 23-24 2NO

Rated Load Resistive 30V DC, 1A

Inductive DC-13, 24V, 1A

Response

(rated voltage)

Turn on 100 ms maximum

Turn off 20 ms maximum

Auxiliary

Output

Contacts A*- C1 5NO/1 common

Rated Load Resistive 24V DC, 3A,

common terminal 5A max.

Response

(rated voltage)

Turn on 15 ms maximum

Turn off 10 ms maximum

Mounting DIN rail or panel mounting

*: Channel Nos. 1 to 5

Explosion-Protection Specifications

Explosion Protection [Exia]ⅡC

Non-intrinsically Safe Circuit Maximum Voltage (Um) 250V

Intrinsically Safe Circuit Maximum Voltage (Uo) 13.2V

Intrinsically Safe Circuit Maximum Current (Io) 227.2 mA

Intrinsically Safe Circuit Maximum Power (Po) 750 mW

Intrinsically Safe Circuit Allowable Capacitance (Co) 0.28 µF

Intrinsically Safe Circuit Allowable Inductance (Lo) 0.56 mH

Intrinsically Safe Circuit

Wiring Resistance (Rw)

Safety circuit (Note 1)

Auxiliary circuit (Note 2)

Note1:10Ωmaximum(500mmaximumusinga1.25mm2cable)

Note2:600/(N+1)Ωmaximum,whereN=thenumberofcommonchannels

Safety Specifications

Category 4

Performance Level (PL) e

Mean Time to Dangerous Failure (MTTFd) 100 years

Diagnostic Range 99% minimum

Calculation conditions for MTTFd

cycle:Meanoperationcycle=1hour

op: Meanoperationhoursperday=24hours

op: Meanoperationdaysperyear=365days

Note: When tcycle is shorter than 1 hour, MTTFd will decrease.

Explosion

Protection

Safety relay barrier [Exia]ⅡC

Switch (EB9Z-A) ExiaⅡCT6

Switch (EB9Z-A1) ExiaⅡBT6

Safety

Performance

Performance level e

Category 4

Types

Safety Input

Points

Safety Output

Points

Auxiliary Input Points

(Note 1)

Auxiliary Output Points

(Relay Output)

Reset (Start)

(Note 2, Note 3) Ordering Type No.

2 2NO Without Without Auto reset (Auto start) EB3N-A2ND

Manual reset (Manual start) EB3N-M2ND

2 2NO 5 (1 common) 5NO (1 common) Auto reset (Auto start) EB3N-A2R5D

Manual reset (Manual start) EB3N-M2R5D

Note1: Amaximumofvemonitorcontactsfromsafetyinputdevicescanbeconnectedtotheauxiliaryinputterminals.Inaddition,non-safetyinputdevices

can also be connected to the auxiliary input terminals.

Note 2: On auto reset (auto start) models, when the safety condition is met (two safety inputs are both on), safety outputs are turned on automatically.

Connect the reset (start) input terminals Y1 and Y2 together except for the following cases:

When connecting a contactor or force guided relay to the safety output of the EB3N, connect the NC contacts of the contactor or force guided relay to

the reset (start) input terminals Y1 and Y2 of the EB3N for use as a backcheck input signal.

Note 3: On manual reset (manual start) models, while the safety condition is met (two safety inputs are both on), safety outputs are turned on at the falling edge

of the reset switch (start switch) signal (OFF→ON→OFF) (start off check).

Manual reset (manual start) models have a monitoring function of reset switch contacts (detection of welded contacts). Use NO contacts of a momen-

tary switch for the reset (start) input.

When connecting a contactor or force guided relay to the safety output of the EB3N, connect the NC contacts of the contactor or force guided relay to

the reset (start) input terminals Y1 and Y2 of the EB3N for use as a backcheck input signal.

Selection Guide

1. Selecting the reset (start) function

Auto reset (auto start): Select this model when connecting safety control devices, such as safety relay modules or safety controllers, to the EB3N

safety outputs to set up a safety system, using the reset (start) function of the safety control device.

Select this model when connecting contactors or force guided relays to the EB3N safety outputs to set up a safety system,

and a risk assessment on the entire system has not found any safety problem in using auto reset (auto start).

Manual reset (manual start): Select this model when connecting contactors or force guided relays to the EB3N safety outputs to set up a safety system,

and a risk assessment on the entire system has found that manual reset (manual start) is necessary.

2. Selecting the auxiliary outputs

Without auxiliary outputs: Select this model when the operating status of safety input devices are not monitored.

With auxiliary outputs: Select this model when the operating status of safety input devices are monitored or when non-safety input devices are

also connected..

Package quantity: 1

(10/02/05)

EB3N Safety Relay Barrier

Dimensions

EB3N-A2ND EB3N-A2R5D

EB3N-M2ND EB3N-M2R5D

•Mounting Hole Layout

EB3N-A2ND EB3N-A2R5D

EB3N-M2ND EB3N-M2R5D

EB3N System Configuration Examples

65.0

75.0

110.5 77.5

75.0

Terminal Functions

24V DC Power

Y1-Y2 Reset input

(Start input)

11-12 Safety input 1

21-22 Safety input 2

N1, N2 Signal ground

P*-N3 Auxiliary input

13-14 Safety output 1

23-24 Safety output 2

A*-C1 Auxiliary output

*: 1 to 5

2-M4 tapped or

2-ø4.5 drilled holes

2-M4 tapped or

2-ø4.5 drilled holes

EB3N-A2ND Safety Control Device

Safety Control Device

Reset (Start) Switch

Other Input Device

PLC

Safety Contactor

EB3N-M2ND Safety Contactor

Safety Contactor

Safety Input Device

Barrier Safety Output Safety Output

Barrier Safety Output

Backcheck Input

Safety Output

Backcheck Input

Safety Output

Backcheck Input

• 1:1 connection with a safety input device, compliant with Category 4

• Connection with multiple safety input devices, capable of monitoring up to 5 contact operations, compliant with Category 3

For monitoring operating statuses of safety input devices located in a non-hazardous area

• Installing a reset switch in a hazardous area, using auxiliary input and output

EB3N-A2R5D

Barrier Safety Output

Reset (Start) Output

Monitor

Other Output

Barrier Safety Output

Auxiliary Output

(Monitor Output)

EB3N-A2R5D

EB3N-M2R5D

Reset (Start) Input

Auxiliary Output

(Monitor Output)

EB3N-M2R5D

Barrier Safety Output

Backcheck Input

Reset (Start) Input

Other Output

Hazardous Area Non-hazardous Area

• A safety relay module or safety controller

is used to set up a safety circuit, using

the reset (start) function of the safety

relay module or safety controller.

• The manual reset (manual start) function

of the EB3N is used to set up a safety

circuit, without using a safety control

device.

• A safety relay module or safety controller

is used to set up a safety circuit, using

the reset (start) function of the safety

relay module or safety controller.

• The reset (start) function is used to set up

a safety circuit, without using a safety

relay module or safety controller.

Safety Input Devices

Connected in Series

Safety Input Devices

…

Safety Input Devices

Connected in Series

…

Reset (Start) Switch

Other Input Device

Safety Input Devices

Reset (Start) Input

Backcheck Input

Reset (Start) Input

Backcheck Input

Reset (Start) Input

All dimensions in mm.

(10/02/05)

7-31, Nishi-Miyahara 1-Chome, Yodogawa-ku, Osaka 532-8550, Japan

Tel: +81-6-6398-2571, Fax: +81-6-6392-9731

E-mail: [email protected]

Specifications and other descriptions in this catalog are subject to change without notice.

Cat. No. EP1300-0 FEBRUARY 2010 PDF

IDEC ELECTRONICS LIMITED

Tel: +44-1256-321000, Fax: +44-1256-327755

E-mail: [email protected]

IDEC ELEKTROTECHNIK GmbH

Tel: +49-40-25 30 54 - 0, Fax: +49-40-25 30 54 - 24

E-mail: [email protected]

IDEC (SHANGHAI) CORPORATION

Tel: +86-21-5353-1000, Fax: +86-21-5353-1263

E-mail: [email protected]

IDEC (BEIJING) CORPORATION

Tel: +86-10-6581-6131, Fax: +86-10-6581-5119

IDEC (SHENZHEN) CORPORATION

Tel: +86-755-8356-2977, Fax: +86-755-8356-2944

IDEC IZUMI (H.K.) CO., LTD.

Tel: +852-2803-8989, Fax: +852-2565-0171

E-mail: [email protected]

IDEC TAIWAN CORPORATION

Tel: +886-2-2698-3929, Fax: +886-2-2698-3931

E-mail: service@tw.idec.com

IDEC IZUMI ASIA PTE. LTD.

Tel: +65-6746-1155, Fax: +65-6844-5995

E-mail: [email protected]

www.idec.com

IDEC CORPORATION (USA)

Tel: +1-408-747-0550 / (800) 262-IDEC (4332)

Fax: +1-408-744-9055 / (800) 635-6246

E-mail: [email protected]

IDEC CANADA LIMITED

Tel: +1-905-890-8561, Toll Free: (888) 317-4332

Fax: +1-905-890-8562

E-mail: [email protected]

IDEC AUSTRALIA PTY. LTD.

Tel: +61-3-9763-3244, Toll Free: 1800-68-4332

Fax: +61-3-9763-3255

E-mail: [email protected]

EB3N Safety Relay Barrier

Safety Input Devices Connectable to Safety Input Terminals (Examples)

Emergency stop switch: (Non-illuminated) XW1E-BV402MFRH, XN4E-BL412MRH

Safety switch: HS6B-02B05, HS1B-02R

Instructions

Notes for Operation•

1. Do not disassemble, repair, or modify the EB3N safety relay

barrier, otherwise the safety characteristics may be impaired.

 2.UsetheEB3Nwithinitsspecicationvalues.

3. The EB3N can be mounted in any direction.

4. Mount the EB3N on a 35-mm-wide DIN rail or directly on a

panel surface using screws. When mounting on a DIN rail,

push in the clamp and use end clips to secure the EB3N. When

mountingonapanelsurface,tightenthescrewsrmly.

5. Excessive noise may cause malfunction or damage to the

EB3N. When the internal voltage limiting circuit (thyristor) has

shut down the power due to noise, remove the cause of the

noise before powering up again.

6. The internal power circuit contains an electronic fuse to sup-

press overcurrents. When the electronic fuse has tripped, shut

down the power, remove the cause of the overcurrent before

powering up again.

7. Use crimping terminals with insulation sheath for wiring.

Tighten the terminal screws, including unused terminal screws,

to a recommended tightening torque of 0.6 to N·m using a

screwdriver of ø5.5 mm in diameter.

8. Before inspecting or replacing the EB3N, turn off the power.

Notes for Machine Safety•

1. Operate the safety input device to check the EB3N functionality

everyday.

2. For safety input devices, such as safety switches or emergency

stop switches, connected to the EB3N, use safety standard-

compliant devices with direct opening action and 2NC contacts.

3. Do not use the auxiliary input as a safety input.

4. For safety control devices connected with the EB3N, use

machine safety standard-compliant devices with a disparity

detection function.

 5.Usesafetyinputsandsafetyoutputsinacircuitconguration

compliant with safety requirements.

6. To calculate the safety distance, take into consideration the

response time of all devices comprising the system, such as

the EB3N and safety devices connected to the EB3N.

7. Separate the input and output wiring from power lines and mo-

tor lines.

8. When using multiple EB3N safety relay barriers, do not connect

one switch to more than one EB3N. Use separate switches for

each EB3N.

9. To ensure EMC, use shielded cables for safety inputs and aux-

iliary inputs. Connect the shield to the FG of the control panel

on which the EB3N is mounted.

10. For protection against overcurrents, connect an IEC60127-2-

compliant 2A fast-blow fuse (5 ×20 mm).

11. Evaluate the ISO 13849-1 category and performance level in

consideration of the entire system.

Notes for Explosion Protection Safety•

1. Install the EB3N in an enclosure capable of protecting against

mechanical shocks at a hazardous location in accordance with

intrinsic safety ratings and parameters.

2. Install and wire the EB3N so that the EB3N is not subject to

electromagnetic and electrostatic induction and does not con-

tact with other circuits.

For example, keep a minimum spacing of 50 mm between

intrinsically safe and non-intrinsically safe circuits, or provide a

metallic separating board between the intrinsically safe circuit

and non-intrinsically safe circuit. When providing a metallic

separatingboard,makesurethattheboardtscloselytothe

enclosure (top, bottom, and both sides). Allowable clearance

between the board and the enclosure is 1.5 mm at the maxi-

mum.

When a motor circuit or high-voltage circuit is installed nearby,

keep a wider spacing than 50 mm between intrinsically safe

and non-intrinsically safe circuits.

3. Keep a minimum spacing of 3 mm between the terminal or

relay terminal block of the intrinsically safe circuit and the

grounded metal parts of the metal enclosure.

4. Connect the terminals so that IP20 is ensured.

5. To prevent disengaged wires from contacting with other intrinsi-

cally safe circuits, bind together the end of wires.

6. Make sure that the voltage of the power supply for the devices

connected to the non-intrinsically safe circuit or the internal

voltage of such devices does not exceed 250V AC/DC 50/60

Hz or 250V DC under any normal and abnormal conditions.

7. Make sure that the wiring of intrinsically safe circuits does not

contact with other circuits or is not subject to electromagnetic

and electrostatic inductions, otherwise explosion protection is

not ensured.

8. When identifying intrinsically safe circuits by color, use light

blue terminal blocks and cables.

9. When wiring the intrinsically safe circuit, determine the distance

to satisfy the wiring parameters shown below.

 a)WiringcapacitanceCw≤Co–Ci

Co: Intrinsically safe circuit allowable capacitance

Ci: Internal capacitance of switches

 b)WiringinductanceLw≤Lo–Li

Lo: Intrinsically safe circuit allowable inductance

Li: Internal inductance of switches

 c)Wiringresistance≤Rw

Rw: Allowable wiring resistance

Switches in the Hazardous Area•

1. A switch contains the switch contact, enclosure, and internal

wiring. A switch contact refers to an ordinary switching device

which consists of contacts only.

2. When the switch has internal wiring or lead wire, make sure

that the values of internal capacitance (Ci) and inductance (Li)

arewithinthecertiedvalues.

3. Enclose the bare live part of the switch contact in an enclosure

of IP20 or higher protection.

 4.Dependingontheexplosion-protectionspecicationsofTIIS,

the exposed area of plastic switch operator, when installed in

Japan, is limited as follows:

Certication Explosion Protection Exposed Area

TC15758 Exia II CT6 20 cm2maximum

TC15961 Exia II BT6 100 cm2maximum

(10/02/05)

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