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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: [email protected]

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 specification 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 firmly.

  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 configuration 

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 fits 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 certified 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 specifications of TIIS, 

the exposed area of plastic switch operator, when installed in 

Japan, is limited as follows:

Certification

Explosion Protection

Exposed Area

TC15758

Exia II CT6

  20 cm

2

 maximum

TC15961

Exia II BT6

100 cm

2

 maximum

(10/02/05)

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