Siemens EF 784 Series Instrukcja Użytkownika Pobierz pdf (Strona 2)

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Technical data

3RG78 47–4BB standard evaluation unit

3RG78 47 intelligent evaluation units

Safety cat. acc. to EN 954-1 Category 4

STOP cat. acc. to EN 60 204-1(11/98)

STOP category 0

Operational voltage U

AC/DC 24 V, –15% to +10%

Residual ripple (for DC)/

2.4 V

Frequency (for AC) 50 to 60 Hz

Clearance and leakage paths

4 kV acc. to DIN VDE 0110 (04.97)

Power consumption

2.1 W (for AC)/1.7 W (for DC)

External protection for

supply circuit

1 A slow

Output contacts

2 NO,

1 NC AgSnO

, gold plated

Switching capacity to IEC 60 947-5-1

•AC-15, 230 V 6 A

• DC-13, 24 V (360 operating cycles/h)

6 A

• DC-13: 24 V (3600 operating cycles/h)

3 A

Max. continuous current per current path

6 A

Contact protection per current path

6.3 A quick or 4 A slow

Max. total current for all current paths

12 A

Max. switching frequency

3600 operating cycles

Mechanical endurance

10 × 10

operating cycles

Pick-up delay

•Manual start 70 ms

•Automatic start

230 ms

Release delay, response time

20 ms

Minimum on-time S34, S35

80 ms

Electronic backup:

start/restart time

2 s/2 s

Control voltage/current

on S11, S22, S31

DC 24 V/20 mA

Permissible input conductor resistance

< 70 Ω

Emitted interference EN 50 081-1, -2

Interference immunity

EN 50 082-2

Operating temperature

–25 °C to + 55 °C

Degree of protection

Housing IP 40, terminals IP 20

Conductor cross-sections

•finely stranded 2 × 0.14 to 0.75 mm

•finely stranded with end sleeve 2 × 0.25 to 0.5 mm

•finely stranded with twin end sleeve 2 × 1.5 mm

•solid 1 × 0.14 to 2.5 mm

•finely stranded with end sleeve 2 × 0.25 to 2.5 mm

Protection acc. to EN, IEC 61496 T1 Typ e 4

Safety category acc. to EN 954-1

Category 4

STOP cat. acc. to EN 60 204-1(11/98)

STOP category 0

Supply voltage

24 V DC, ± 20%,

external power pack with safe

isolation from the supply and

bridging of 20 ms voltage drop is

necessary

Current consumption

Approx. 200 mA without ext. load

External protection (power supply)

2.5 A mT

Safety sensors that can be connected

(expanded versions)

1 light curtain, Type 4, or

up to 2 light curtains of Type 2

(all acc. to IEC 61496)

up to 2 light curtains of Type 4, or

up to 4 light curtains of Type 2

(all acc. to IEC 61496)

Tes t o u tputs T1 and T2, test interval

200 ms

Available functions

•All versions Start/restart inhibit,

contactor control, diagnosis

•Versions with cycle control

Protection, single-pulse and two-

pulse mode

•Versions with muting function

Sequential muting, parallel muting,

parallel double muting

(only 3RG78 47-4.G)

Control input:

contactor control (EDM)

Feedback of positively-driven

contacts of downstream contactors

Control input:

start/restart inhibit (Reset)

Floating NO

(button or key-switch)

Connection of muting sensors that

cannot be tested

Signal level in damped state: active

high, +24 V

Connection of muting sensors that can

be tested

active high, +24 V, plus test pulses

T1 or T2

Outputs: Muting displays for lamps 24 V,

max. 5 W

pnp switching outputs

muting function On,

active high, +24 V,

200 mA max.

Signal outputs (acc. to variants)

Light curtain free/interrupted;

switching state relay/transistor

output; restart inhibit locked/

unlocked; status of muting function;

muting error; warning muting lamp

defective; internal errors, etc.

Operating temperature

0 to +55 °C

Degree of protection

IP 20, must be installed in

switchgear cabinet or housing to

IP 54 degree of protection upward

Installation

Mouting on 35 mm standard

mounting rail

Connection technique

Plug-in coded screw-type terminals

up to 2.5 mm

Outputs Relay outputs Semiconductor outputs

OSSD safety outputs

2 safety-related NO contacts 2 safety-related pnp semiconductor outputs with

crossover detection

Switching voltage/Switching current

60 V DC, 250 V AC, max.´6 A 24 V DC, max. 300 mA

Only extended versions

1 safety-related NC contact,

60 V DC, 250 V AC, max. 6 A

minimum switching current 20 mA

OSSD external protection 6 AT –

OSSD response time of SIGUARD evaluation unit

(without light curtain)

•for light curtain, Type 4, with semiconductor output 18 ms 8 ms

•for light curtain, Type 2

54 ms 44 ms

•for safety switches

54 ms 44 ms

OSSD reactivation time

100 ms 100 ms

OSSD suitable spark quenching

via the coils of the downstream relay

necessary –

Introduction

SIGUARD Safety Systems—Safety Integrated

3RG784 SIGUARD Safety Light Curtains and Light Arrays

Siemens Energy & Automation, Inc.

Industrial Controls Catalog

09_Sec (097-128).qxd 07/28/03 02:28 PM Page 9/101

Sold by AA Electric 1-800-237-8274 Lakeland, NJ • Lawrenceville, GA • Greensboro, NC • East Rutherford, NJ www.A-Aelectric.com

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