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2331.book Seite 1 Donnerstag, 20. Juni 2002 10:13 10

Safety combination

Instructions

WARNING:

HAZARDOUS VOLTAGE

CAN CAUSE ELECTRICAL SHOCK

AND BURNS.

DISCONNECT POWER BEFORE PROCEEDING

WITH ANY WORK ON THIS EQUIPMENT.

The switchgear must be installed in switchgear cubicles complying with

degree of protection IP 32, IP 43 or IP 54, depending on the prevailing

environmental conditions.

IMPORTANT NOTICE

The products described herein are designed to be components of a customized

machinery safety-oriented control system. A complete safety-oriented system

may include safety sensors, evaluators, actuators and signaling components. It

is the responsibility of each company to conduct its own evalution of the effecti-

veness of the safety system by trained individuals. ABB AG, its subsidiaries and

affiliates (collectively "ABB") are not in a position to evaluate all of the charac-

teristics of a given system or product or machine not designed by

ABB.

Siemens accepts no liability for any recommendation that may be implied or

stated herein. The warranty contained in the contract of sale by ABB is the sole

warranty of ABB. Any statements contained herein do not create new warranties

or modify existing ones.

Application

The C6701 safety combination can be used in EMERGENCY STOP devices accor-

ding to EN 418 and in safety circuits according to EN 60 204-1 (11.98), e.g. in

movable guards and protective doors or in non-contact protective devices in

accordance with IEC 61496-1 (06.98), electrical equipment for furnaces in accor-

dance with DIN VDE 0116 (10.98) and automatic firing systems for gas burners in

accordance with DIN EN 298 (02.94). Depending on the external circuit ele-

ments, safety category 4 according to DIN EN 954-1 or SIL 3 according to

IEC 61508 can be achieved.

Functional description and instructions for connection

The C6701 safety combination has two reliable solid-state outputs. Three LEDs

indicate the operating state and the function.

When the device is put into operation it runs through a self-test to test the

correct functioning of the internal electronics. All internal circuit components

are monitored for faults cyclically during operation.

Connect the EMERGENCY STOP button and/or the position switches or light

arrays to terminals Y11, Y12 and Y21, Y22. Connect the ON button in series with

the NC contacts of the external actuators to the supply voltage L+ (24 V DC) and

to terminal Y34. Connect cascading input 1 either via a safe output or directly to

the supply voltage L+ (24 V DC).

External actuators or loads can be switched via safe outputs 14, 24. It must be

ensured that the actuators or loads and the C6701 electronic safety combination

have the same frame potential. Paralleling outputs 14 and 24 to increase the

load current is not permissible.

If electronic sensors (e.g. light-array monitoring) are used, and in single-channel

operation, Y35 must be connected to L+ (24 V DC). For autostart operation, Y32

must be connected directly to L+ (24 V DC) and Y34 must be connected to it via

NC contacts of the external actuators.

Use a power pack to IEC 60536 safety class III (SELV or PELV)

for power supply!

Terminal

Operating

assignments

voltage

Sensors

Y11, 12

Y21, 22

Y35

Y32

Y34

Input

Outputs

14, 24

Cable lengths for 2 x 1.5 mm

L+

Channel 1 EMERGENCY STOP or

position switch

Channel 2 EMERGENCY STOP or

position switch

With / without cross-circuit detection

Autostart changeover switch

ON button, feedback circuit

Cascading input

Safe Solid-state outputs

max. 2000 m (total cable length for sensors)

Order No.: 2CDC 114002 M4401

Figures

Fig. I:

Dimension drawings (dimensions in mm)

Fig. Ia:

Terminal designation

Fig. II:

Installation

Fig. III:

Internal circuit: ¿ power pack, À sensors, Á Output 1, Â Output 2

Fig. IV:

Protective-door monitoring, two-channel, autostart, category 4 / SIL 3

Fig. V:

EMERGENCY STOP, single-channel, monitored start category 2 / SIL 1

Fig. VI:

EMERGENCY STOP, two-channel, monitored start with additional ON button

category 4 / SIL 3

Fig. VII:

Light-array monitoring, two-channel, autostart, category 4 / SIL 3

Fig. VIII:

EMERGENCY STOP, two-channel, monitored start with additional ON button

and protective-door monitoring, autostart, category 4 SIL 3

Fig. IX:

Safety mat, two-channel, autostart, category 3 SIL 2

Operating states

LEDs

Operation

POWER RUN

FAIL

EMERGENCY

STOP

not activated activated

activated

not activated not activated off

on startup self-test approx. 7 sec.

flashes

Faults

• Defect in electronics

flashes

• Change in terminal assignment

during operation

• Short-circuit to 24V

No supply voltage

Fault

1. Switch supply voltage off.

clearance

2. Clear fault or replace device.

3. Switch supply voltage back on.

Technical data

Permissible ambient temperature T

Operation/storage

Degree of protection to EN 60 529

Rated insulation voltage

Rated impulse withstand voltage

Rated control supply voltage

Rated power

Operating range

Shock resistance (half-sine) as per IEC 60068

Weight

Recovery time after EMERGENCY STOP

Recovery time after power failure

Release time after EMERGENCY STOP

Pickup time

Short-circuit protection

Utilization category

Rated operational

as per IEC 60947-5-1

voltage [V]

DC-13

Sensor circuits open; Cross-circuit between the sensors; Short-circuit of sensors

to frame

only when using circuit variant with "cross-circuit detection"

For further data and accessories see in Main Catalog, part 1.

C6701

IEC 60 439-1 (1999)

English

ON button

Outputs

not activated off

off

-25 to +60 °C/-40 to +80 °C

IP 40, IP 20 at terminals

50 V

2 kV

24 V DC

1.3 W

0.9 to 1.15 x U

8 g/10 ms

150 g

min. 30 ms

7 s

30 ms

max. 40 ms

no fusing necessary!

Rated operational current

per output [A]

2.0